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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-273MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS100/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-273
443-273-0MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS1N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-1MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN06/07/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-2MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-3MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN08/28/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-4MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/04/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-5MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN09/12/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/04/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JREISTERSTNBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-8MDLOCAL ACCESS LLC - MD082HREISTERSTNNOCLLIKNOWN12/07/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS1N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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