Input an Area Code (required) followed by the Prefix, or Exchange (optional):
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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
240-523MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229LA PLATAWASHDCCZDS002/13/2001Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS10S
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 240-523
240-523-0MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229LA PLATAWASHDCCZDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS10S
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-1MDUS LEC OF MARYLAND, INC.2589LA PLATATYCRVA03DS001/15/2004Prefix Type: CLEC
Switch Name: MCLEAN
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-2MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119LA PLATANOCLLIKNOWN06/20/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-3MDBANDWIDTH.COM CLEC, LLC - MD071FLA PLATANOCLLIKNOWN09/17/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-4MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119LA PLATANOCLLIKNOWN02/10/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-5MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229LA PLATAWASHDCCZDS007/20/2005Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS10S
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-6MDXO MARYLAND, LLC (Verizon Communications)4773LA PLATAWASHDCCZDS107/20/2005Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-7MDXO MARYLAND, LLC (Verizon Communications)4773LA PLATAWASHDCCZDS107/20/2005Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-8MDXO MARYLAND, LLC (Verizon Communications)4773LA PLATAWASHDCCZDS107/20/2005Prefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
240-523-9MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229LA PLATAWASHDCCZDS0N/APrefix Type: CLEC
Switch Name: WASHINGTON
Switch Type: Northern Telecom DMS10S
LATA: N/A
Tandem: N/A
Detailed Switch Info
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