Local Calling Guide

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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-297 8 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 9 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-298 A Washington Zone 15 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-298 0 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-298 1 Washington Zone 15 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-298 2 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
301-298 3 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-14   
301-298 4 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236   2013-02-25   
301-298 5 Washington Zone 15 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-03-13   
301-298 6 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-298 7 Washington Zone 15 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2016-11-19   
301-298 8 Washington Zone 15 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-298 9 Washington Zone 15 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-299 A Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-300 A Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-300 0 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-05-26   
301-300 1 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 2 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 3 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 5 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 6 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 7 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 8 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-300 9 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-19   
301-301 A Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-301 0 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 1 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 2 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 3 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 4 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 5 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 6 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 7 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 8 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-301 9 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-10-23   
301-302 A Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-302 0 Hagerstown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2004-11-26   
301-302 1 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2005-03-28   
301-302 2 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2006-04-02   
301-302 3 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2006-04-07   
301-302 4 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2006-04-07   
301-302 5 Hagerstown MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-08-07   
301-302 6 Hagerstown MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-08-07   
301-302 7 Hagerstown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2006-08-22   
301-302 8 Hagerstown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2006-08-01   
301-302 9 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2005-03-04   
301-303 A Washington Zone 13 MD SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-304 A Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-304 0 Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2007-04-20   

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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