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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-943MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325SPARROWSPTBLTMMDFMDS000/00/0000Prefix 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 443-943
443-943-0MDPEERLESS NETWORK OF MARYLAND, 568GSPARROWSPTNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-1MDPEERLESS NETWORK OF MARYLAND, 568GSPARROWSPTNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-2MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN05/22/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-3MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN05/22/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-4MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN06/10/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-5MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN09/04/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-6MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN11/25/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-7MDMETROPCS, INC. (T-Mobile US, Inc)5562SPARROWSPTNOCLLIKNOWN02/10/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-8MDLOCAL ACCESS LLC - MD082HSPARROWSPTNOCLLIKNOWN02/23/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-943-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325SPARROWSPTBLTMMDFMDS0N/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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