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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-671MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325NEWWINDSORBLTMMDFMDS000/00/0000Prefix 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 443-671
443-671-0MDCORE COMMUNICATIONS, INC.- MD2593NEWWINDSORNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-1MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119NEWWINDSORNOCLLIKNOWN02/08/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-2MDBANDWIDTH.COM CLEC, LLC - MD071FNEWWINDSORNOCLLIKNOWN08/08/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-3MDTWILIO INTERNATIONAL, INC.506JNEWWINDSORNOCLLIKNOWN11/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-4MDBANDWIDTH.COM CLEC, LLC - MD071FNEWWINDSORNOCLLIKNOWN07/05/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-5MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716NEWWINDSORBLTMMDCHW2903/28/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-6MDCOMCAST IP PHONE, LLC318JNEWWINDSORNOCLLIKNOWN01/09/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-7MDBANDWIDTH.COM CLEC, LLC - MD071FNEWWINDSORNOCLLIKNOWN10/19/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-8MDBANDWIDTH.COM CLEC, LLC - MD071FNEWWINDSORNOCLLIKNOWN07/05/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-671-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325NEWWINDSORBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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