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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-412MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHURCHVLBLTMMDFMDS000/00/0000Prefix 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 443-412
443-412-0MDCORE COMMUNICATIONS, INC.- MD2593CHURCHVLNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-1MDUS LEC OF MARYLAND, INC.2589CHURCHVLCLMAMDJTDS012/16/2003Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-2MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHURCHVLBLTMMDFMDS008/15/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-3MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHURCHVLBLTMMDFMDS008/15/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-4MDCORE COMMUNICATIONS, INC.- MD2593CHURCHVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-5MDCOMCAST IP PHONE, LLC318JCHURCHVLNOCLLIKNOWN09/20/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-6MDHD CARRIER LLC321JCHURCHVLNOCLLIKNOWN04/20/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JCHURCHVLBLTMMDDN2MD05/14/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-8MDONVOY, LLC - MD (Inteliquent)876DCHURCHVLNOCLLIKNOWN02/25/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-412-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHURCHVLBLTMMDFMDS0N/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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