Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 273

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-273 A Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-273 0 Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-273 1 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
301-273 2 Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-273 3 Washington Zone 3 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2006-06-03   
301-273 4 Washington Zone 3 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2011-06-13   
301-273 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-08-20   
301-273 6 Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2016-03-03   
301-273 7 Washington Zone 3 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
301-273 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-12-30   
301-273 9 Washington Zone 3 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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