Rate Center Name: , State/Province:
If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.

🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
410-248MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPRHLMDPHDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PRHLMDPHDS0))
410-256MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPRHLMDPHDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PRHLMDPHDS0))
410-497MDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JPARKVILLEBLTMMDCHXFX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
410-513MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325PARKVILLEBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDFMDS0))
410-529MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPRHLMDPHDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PRHLMDPHDS0))
410-657MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228PARKVILLEBLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
410-661MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
410-663MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
410-665MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
410-668MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
410-870MDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JPARKVILLEBLTMMDCHXFX02/10/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
410-882MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS000/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
410-931MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEWHMRMDWMRS200/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: WHMRMDWMRS2))
410-933MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEWHMRMDWMRS200/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: WHMRMDWMRS2))
443-219MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119PARKVILLEBLTMMDSN6MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-290MDLEVEL 3 TELECOM OF MARYLAND, LLC - MD (Lumen Technologies, Inc)0017348202RMD00060827591PARKVILLEBLTMMDSNNMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSNNMD))
443-384MDPAETEC ITEL, LLC0015247810RMD0038378829JPARKVILLEPIVLMDPKXGX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PIVLMDPKXGX))
443-425MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325PARKVILLEBLTMMDCHCMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHCMD))
443-442MDPAETEC ITEL, LLC0015247810RMD0038378829JPARKVILLEPIVLMDPKXGX05/09/2001Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PIVLMDPKXGX))
443-461MDPAETEC ITEL, LLC0015247810RMD0038378829JPARKVILLEPIVLMDPKXEX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PIVLMDPKXEX))
443-495MDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FPARKVILLEBLTMMDCH45Z00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
443-588MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229PARKVILLEBLTMMDCHXNX00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: Digital Switching System
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-653MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855PARKVILLEBLTMMDCHXWY05/18/2001Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXWY))
443-678MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEWHMRMDWMRS200/00/0000Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: WHMRMDWMRS2))
443-725MDPAETEC ITEL, LLC0015247810RMD0038378829JPARKVILLEPIVLMDPKXEX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PIVLMDPKXEX))
443-793MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229PARKVILLEBLTMMDCHXNX00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: Digital Switching System
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-946MDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
443-998MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212PARKVILLEPKVLMDPKDS003/19/2001Prefix Type: RBOC
Switch Name: PARKVILLE
Switch Type: NTDMS100
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: PKVLMDPKDS0))
667-310MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855PARKVILLEBLTMMDCH40Z04/13/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
667-381MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855PARKVILLEBLTMMDCH40Z12/07/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
667-409MDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FPARKVILLEBLTMMDCH45Z08/03/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH45Z))
667-441MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036PARKVILLECLMAMDORAMD07/26/2023Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORAMD))
667-532MDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DPARKVILLEBLTMMDCH42Z11/04/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
667-688MDFRACTEL, LLC0018413799RMD0001775965HPARKVILLEBLTQMD01AMD07/15/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD01AMD))
This information is not guaranteed to be accurate. User assumes all risk for any loss or gain resulting from use of this data.
Although I strive for accuracy and prompt updates of changed information, it is possible that there may be errors. If you see one, could you please report it?
Please report all errors, flames, questions, suggestions, and thanks to Paul Timmins
L'exactitude de ces renseignements n'est pas garantie. L'utilisateur assume l'entière responsabilité des pertes ou des gains découlant de l'utilisation de ces données.
Bien que je m'efforce d'assurer l'exactitude des informations et de les mettre à jour rapidement, des erreurs peuvent subsister. Si vous en voyez une, veuillez me la signaler.
Veuillez adresser vos commentaires, remarques, questions, suggestions et remerciements à Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2026, Paul Timmins/Timmins Technologies, LLC. All rights reserved
Website Design and User Interface ©2010, Adam Botbyl/Revolutionary Solutions, LLC.
Colocation generously provided by Clear Rate Communications, Inc
Has this site changed your life? Made your job easier? I always love Fanmail and Suggestions.