Input an Area Code (required) followed by the Prefix, or Exchange (optional):
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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
301-623MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS000/00/0000Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 301-623
301-623-0MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-1MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-2MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-3MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-4MDTELEPORT COMMUNICATIONS AMERICA, LLC - DC (AT&T)7529WSNG236Z13WASHDCTTDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-5MDCORE COMMUNICATIONS, INC.- MD2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-6MDCORE COMMUNICATIONS, INC.- MD2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-7MDCORE COMMUNICATIONS, INC.- MD2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-8MDCORE COMMUNICATIONS, INC.- MD2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-623-9MDCORE COMMUNICATIONS, INC.- MD2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info