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npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
410-290MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
410-309MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
410-312MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-381MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
410-423MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIABLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDFMDS0))
410-447MDSPOK, INC. (Spok, Inc)0015608417RMD00078586630COLUMBIAHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDAE3MD))
410-531MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLVLMDCERP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLVLMDCERP0))
410-707MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
410-715MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-730MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-740MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772 is split into 1,000-number blocks - detail below
410-772-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-4XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD06/09/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
410-772-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-6XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-772-9XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-794MDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS200/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794 is split into 1,000-number blocks - detail below
410-794-0XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-1XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-2XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-3XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-4XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-5XXXMDBALTIMORE-WASHINGTON TELEPHONE (BWT)0008104507RMD00045168697COLUMBIANOCLLIKNOWN04/17/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-794-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD05/02/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
410-794-7XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-8XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-794-9XXXMDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591COLUMBIABLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDNDS2))
410-872MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-884MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-910MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
410-953MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953 is split into 1,000-number blocks - detail below
410-953-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-6XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
410-953-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z08/26/2010Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
410-964MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
410-992MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992 is split into 1,000-number blocks - detail below
410-992-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/29/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
410-992-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-6XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-992-9XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIAELCYMDELDS0N/APrefix Type: RBOC
Switch Name: ELLICOTT CITY
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: ELCYMDELDS0))
410-997MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-259MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259 is split into 1,000-number blocks - detail below
443-259-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-5XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTBMD08/23/2013Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTBMD))
443-259-6XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDOBDS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDOBDS0))
443-259-9XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCHW2902/03/2003Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHW29))
443-276MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX00/00/0000Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276 is split into 1,000-number blocks - detail below
443-276-0XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-1XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-3XXXMDVDL, INC. DBA GLOBAL TELECOM BROKERS - MD0018511246RMD00030544492COLUMBIANOCLLIKNOWN10/17/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-276-4XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-5XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-6XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-7XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-276-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-276-9XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-283MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCHW2900/00/0000Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHW29))
443-285MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285 is split into 1,000-number blocks - detail below
443-285-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD04/05/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-285-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/07/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-285-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD08/05/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-285-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285-6XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-285-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-285-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/07/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-319MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLARMDBL1MD00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLARMDBL1MD))
443-319 is split into 1,000-number blocks - detail below
443-319-0XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLARMDBL1MDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLARMDBL1MD))
443-319-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN07/14/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-319-2XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD12/09/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-319-3XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z05/19/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-319-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLARMDBL1MD06/08/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLARMDBL1MD))
443-319-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX02/10/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-319-6XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLARMDBL1MDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLARMDBL1MD))
443-319-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD12/09/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-319-8XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX11/09/2010Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-319-9XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLARMDBL1MDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLARMDBL1MD))
443-367MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367 is split into 1,000-number blocks - detail below
443-367-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367-1XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/02/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-367-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA05/25/2007Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-367-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-367-7XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-367-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/29/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-367-9XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN03/10/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-393MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393 is split into 1,000-number blocks - detail below
443-393-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-393-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-393-2XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS008/15/2005Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-3XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS008/15/2005Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-5XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-6XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS004/13/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-7XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS003/10/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-8XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-393-9XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-430MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX05/18/2001Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-430 is split into 1,000-number blocks - detail below
443-430-0XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-430-1XXXMDIP HORIZON LLC0027469766RMD0001571515JCOLUMBIANOCLLIKNOWN09/15/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-430-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX07/19/2005Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-430-3XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-430-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT009/14/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-430-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT009/14/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-430-6XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX07/19/2005Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-430-7XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS005/19/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-430-8XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS002/28/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-430-9XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNXN/APrefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-472MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-472 is split into 1,000-number blocks - detail below
443-472-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD05/07/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD11/06/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/03/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/08/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-472-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/08/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD12/06/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD02/03/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD12/06/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-472-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/07/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-518MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/16/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518 is split into 1,000-number blocks - detail below
443-518-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/23/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-518-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/18/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/18/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/18/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/18/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518-5XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP012/18/2008Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-518-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/23/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-518-7XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIAWASKDCFNPS003/09/2010Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WASKDCFNPS0))
443-518-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/17/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-518-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/23/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-535MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLVLMDCERP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLVLMDCERP0))
443-535 is split into 1,000-number blocks - detail below
443-535-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLVLMDCERP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLVLMDCERP0))
443-535-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN04/20/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-535-2XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z08/17/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-535-3XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z12/27/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-535-4XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS005/03/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-535-5XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z01/10/2007Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-535-6XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN02/21/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-535-7XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/09/2009Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-535-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLVLMDCERP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLVLMDCERP0))
443-535-9XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLVLMDCERP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLVLMDCERP0))
443-537MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537 is split into 1,000-number blocks - detail below
443-537-0XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z09/30/2009Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-537-1XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN09/25/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-537-2XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA02/15/2011Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-537-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD05/05/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN05/26/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-537-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/02/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/02/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/02/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/02/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-537-9XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN12/29/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-538MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/20/2001Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-539MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS000/00/0000Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539 is split into 1,000-number blocks - detail below
443-539-0XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539-2XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539-3XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS008/04/2006Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-539-5XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-539-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/29/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-539-7XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN01/25/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-539-8XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN02/01/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-539-9XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-542MDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-542 is split into 1,000-number blocks - detail below
443-542-0XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFXN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-542-1XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z10/27/2004Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-542-2XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFXN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-542-3XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z02/15/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-542-4XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS011/24/2004Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-542-5XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCHW2906/01/2004Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHW29))
443-542-6XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDSRRS011/24/2004Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: AT&T Tech Optic Remote Switch
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDSRRS0))
443-542-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD01/04/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-542-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD08/02/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-542-9XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX01/09/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-545MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MD05/18/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-545 is split into 1,000-number blocks - detail below
443-545-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN08/30/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-545-1XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-545-2XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-545-3XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-545-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD03/05/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-545-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX05/08/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-545-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/03/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-545-7XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN02/03/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-545-8XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN08/22/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-545-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/03/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-546MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-546 is split into 1,000-number blocks - detail below
443-546-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD01/04/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-546-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212COLUMBIACLMAMDCBRP0N/APrefix Type: RBOC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDCBRP0))
443-546-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS007/31/2007Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-546-3XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX09/05/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-546-4XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX09/05/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-546-5XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/11/2010Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-546-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/10/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-546-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/02/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-546-8XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z09/22/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-546-9XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN04/14/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCH14Z00/00/0000Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH14Z))
443-583 is split into 1,000-number blocks - detail below
443-583-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN02/03/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCH14ZN/APrefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH14Z))
443-583-2XXXMDQUANTUM TELECOMMUNICATIONS, INC. - MD0007761273RMD00029172596COLUMBIANOCLLIKNOWN01/04/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-3XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN03/03/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-4XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN03/03/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-5XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN08/06/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD05/05/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-583-7XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX09/02/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-583-8XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN04/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-583-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z10/13/2014Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-656MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMD05/10/2001Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656 is split into 1,000-number blocks - detail below
443-656-0XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-1XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HCOLUMBIANOCLLIKNOWN04/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-656-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-656-3XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-656-6XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-7XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-8XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIAHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-656-9XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN06/15/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-718MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA03/05/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718 is split into 1,000-number blocks - detail below
443-718-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN01/20/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-718-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/03/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-718-2XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA03/06/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718-3XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA03/06/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA05/29/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718-5XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA05/29/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718-6XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA09/15/2008Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-718-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD06/03/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-718-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD03/04/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-718-9XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-741MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS003/29/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-741 is split into 1,000-number blocks - detail below
443-741-0XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z07/11/2011Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-741-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN04/20/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-741-2XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN07/22/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-741-3XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS003/31/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-741-4XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS004/16/2012Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-741-5XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD05/21/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-741-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD05/21/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-741-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD07/08/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-741-8XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GCOLUMBIANOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-741-9XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GCOLUMBIANOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-745MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-766MDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA05/18/2005Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-766 is split into 1,000-number blocks - detail below
443-766-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD11/28/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-766-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA05/19/2005Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-766-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT007/22/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-766-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT007/22/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-766-4XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD08/27/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-766-5XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD08/05/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-766-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD08/27/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-766-7XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA06/19/2006Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-766-8XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD08/05/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-766-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD12/27/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-774MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT011/19/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-774 is split into 1,000-number blocks - detail below
443-774-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT009/10/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-774-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT006/20/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-774-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-774-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/20/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-774-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT011/20/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-812MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD01/15/2001Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812 is split into 1,000-number blocks - detail below
443-812-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMDN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD08/06/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-812-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/05/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-832MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-832 is split into 1,000-number blocks - detail below
443-832-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/29/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-832-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIACLMAMDJTDSA10/14/2009Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDSA))
443-832-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS011/03/2009Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-832-3XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN07/16/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-832-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-832-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/29/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-832-6XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIABLTMMDSN6MD06/27/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-832-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/06/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-832-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/05/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-832-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/05/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-864MDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD12/19/2001Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864 is split into 1,000-number blocks - detail below
443-864-0XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03ZN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-864-1XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03ZN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-864-2XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD03/17/2003Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864-3XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD10/13/2003Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864-4XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX09/20/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-864-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX09/20/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-864-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMDN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMDN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864-8XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMDN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-864-9XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMDN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-878MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878 is split into 1,000-number blocks - detail below
443-878-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD02/04/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JCOLUMBIABLTMMDCHW2907/29/2005Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHW29))
443-878-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/07/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD02/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD03/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD04/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD04/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD01/05/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/11/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-878-9XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD04/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIABLTMMDCHCMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHCMD))
443-896 is split into 1,000-number blocks - detail below
443-896-0XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIANOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-896-1XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIABLTMMDCHCMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHCMD))
443-896-2XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIABLTMMDCHCMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHCMD))
443-896-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/04/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD10/04/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896-5XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIABLTMMDCHCMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHCMD))
443-896-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD09/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD07/03/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD12/05/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-896-9XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIANOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-917MDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z10/07/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
443-917 is split into 1,000-number blocks - detail below
443-917-0XXXMDIP HORIZON LLC0027469766RMD0001571515JCOLUMBIANOCLLIKNOWN08/12/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-917-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN04/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-917-2XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX01/17/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-917-3XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z02/06/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
443-917-4XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229COLUMBIABLTMMDCHXNX06/25/2013Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-917-5XXXMDTERRA NOVA TELECOM INC.0021193057RMD0001495145JCOLUMBIANOCLLIKNOWN08/13/2024Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-917-6XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN04/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-917-7XXXMDCENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)0031422439RMD0006976508JCOLUMBIABLTMMDDN2MD08/05/2013Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDN2MD))
443-917-8XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z01/15/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-917-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z01/15/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
443-979MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD11/21/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-979 is split into 1,000-number blocks - detail below
443-979-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD11/23/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-979-1XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD07/02/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-979-2XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD10/29/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-979-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395COLUMBIABLTOMDKHBMD03/14/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-979-4XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD12/05/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-979-5XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD12/05/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-979-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD02/10/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
443-979-7XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX11/10/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-979-8XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN10/06/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-979-9XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN10/06/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-200MDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z12/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-200 is split into 1,000-number blocks - detail below
667-200-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z12/22/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-200-1XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z03/29/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-200-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z03/29/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-200-3XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z05/22/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-200-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN12/05/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-200-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX03/31/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
667-200-6XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z05/18/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-200-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD02/22/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
667-200-8XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD02/22/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
667-200-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z05/18/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-240MDBARR TELL USA, INC.0012167557RMD0001416964HCOLUMBIABLTQMD012MD11/22/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD012MD))
667-240 is split into 1,000-number blocks - detail below
667-240-0XXXMDTELNYX LLC0018998724RMD0001645073HCOLUMBIABLTMMDCHX7X03/02/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHX7X))
667-240-1XXXMDBARR TELL USA, INC.0012167557RMD0001416964HCOLUMBIABLTQMD012MD11/23/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD012MD))
667-240-2XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JCOLUMBIABLTMMDCHXFX12/20/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
667-240-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT001/13/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-240-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT001/13/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-240-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT005/01/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-240-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT008/04/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-240-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/26/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-240-8XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN04/30/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-240-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT008/04/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-257MDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/14/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257 is split into 1,000-number blocks - detail below
667-257-0XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/15/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257-1XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/15/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257-2XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/15/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257-3XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/15/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257-4XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX12/13/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-257-5XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN09/16/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-257-6XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS004/07/2021Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
667-257-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT011/14/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-257-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-257-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-261MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/24/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261 is split into 1,000-number blocks - detail below
667-261-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT002/12/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT002/12/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT002/12/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/30/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/30/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT003/30/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-261-6XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN12/15/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-261-7XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN12/15/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-261-8XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GCOLUMBIANOCLLIKNOWN05/26/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-261-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/26/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-300MDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
667-300 is split into 1,000-number blocks - detail below
667-300-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
667-300-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
667-300-2XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/12/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-300-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
667-300-4XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/12/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-300-5XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/12/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-300-6XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/12/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-300-7XXXMDVONAGE AMERICA LLC0029173770RMD0032974197DCOLUMBIABLTMMDCHXQX11/12/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXQX))
667-300-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT007/12/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-300-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT007/12/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-359MDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIABLTMMDCH45Z10/25/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
667-359 is split into 1,000-number blocks - detail below
667-359-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIABLTMMDCH45Z10/25/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
667-359-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIABLTMMDCH45Z10/25/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
667-359-2XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIABLTMMDCH45Z10/25/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
667-359-3XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN03/28/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-359-4XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN11/21/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-359-5XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GCOLUMBIANOCLLIKNOWN08/02/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-359-6XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HCOLUMBIANOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-359-7XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HCOLUMBIANOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-359-8XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z05/17/2022Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-359-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z05/17/2022Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-421MDTELNYX LLC0018998724RMD0001645073HCOLUMBIABLTMMDCHX7X00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHX7X))
667-421 is split into 1,000-number blocks - detail below
667-421-0XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JCOLUMBIANOCLLIKNOWN12/22/2023Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-421-1XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JCOLUMBIANOCLLIKNOWN12/22/2023Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-421-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN01/30/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-421-3XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN01/30/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-421-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/11/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-421-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/11/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-421-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/11/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-421-7XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/14/2023Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-421-8XXXMDTELNYX LLC0018998724RMD0001645073HCOLUMBIABLTMMDCHX7X03/27/2023Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHX7X))
667-421-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z06/14/2023Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-447MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH40Z08/23/2023Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
667-447 is split into 1,000-number blocks - detail below
667-447-0XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JCOLUMBIANOCLLIKNOWN08/26/2024Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-447-1XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN08/13/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-447-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN11/07/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-447-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/11/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-447-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/11/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-447-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT010/22/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-447-7XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH40Z08/23/2023Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
667-447-8XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JCOLUMBIANOCLLIKNOWN08/26/2024Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-447-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH40Z08/23/2023Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
667-502MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-502 is split into 1,000-number blocks - detail below
667-502-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN09/18/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-502-1XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN12/11/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-502-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT005/14/2026Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-502-4XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN05/20/2026Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-502-5XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIANOCLLIKNOWN02/06/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-502-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-502-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-502-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-502-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/27/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-678MDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z08/31/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-678 is split into 1,000-number blocks - detail below
667-678-0XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z09/10/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-678-1XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z09/10/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-678-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DCOLUMBIABLTMMDCH42Z08/31/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-678-3XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN09/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-4XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN09/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-5XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FCOLUMBIANOCLLIKNOWN09/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-6XXXMDCOMMIO, LLC0028135630RMD0005575939HCOLUMBIANOCLLIKNOWN09/14/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-7XXXMDCOMMIO, LLC0028135630RMD0005575939HCOLUMBIANOCLLIKNOWN09/14/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-8XXXMDCOMMIO, LLC0028135630RMD0005575939HCOLUMBIANOCLLIKNOWN09/14/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-678-9XXXMDCOMMIO, LLC0028135630RMD0005575939HCOLUMBIANOCLLIKNOWN09/14/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-786MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIACLMAMDNIDS111/04/2015Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDNIDS1))
667-786 is split into 1,000-number blocks - detail below
667-786-0XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562COLUMBIABLTMMDCHFMD02/22/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHFMD))
667-786-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/09/2015Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-786-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/09/2015Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-786-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036COLUMBIACLMAMDORGT012/09/2015Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-786-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119COLUMBIANOCLLIKNOWN01/12/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-786-5XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIACLMAMDNIDS111/05/2015Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDNIDS1))
667-786-6XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325COLUMBIACLMAMDNIDS111/05/2015Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDNIDS1))
667-786-7XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228COLUMBIABLTOMDKHDS003/02/2016Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
667-786-8XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z01/07/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
667-786-9XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855COLUMBIABLTMMDCH03Z01/07/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH03Z))
This information is not guaranteed to be accurate. User assumes all risk for any loss or gain resulting from use of this data.
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