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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-648MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-648
443-648-0MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT011/09/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-1MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT007/26/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-2MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS005/17/2007Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-3MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN06/07/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-4MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-5MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN01/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/17/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JESSEXBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-8MDLOCAL ACCESS LLC - MD082HESSEXNOCLLIKNOWN08/12/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-9MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN09/11/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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