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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
301-261 A Washington Zone 14 (Baltimore LATA) MD COTNMDCRDS0  9212 VERIZON MARYLAND, INC. 238      
301-262 A Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-263 A Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-263 0 Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-263 1 Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-263 2 Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-263 3 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-02-14   
301-263 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-03-20   
301-263 5 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-06-08   
301-263 6 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-263 7 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-263 8 Washington Zone 2 MD LARLMDCCDS0  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
301-263 9 Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-264 A Mount Savage MD MTSVMDMSRS0  9212 VERIZON MARYLAND, INC. 240      
301-264 0 Mount Savage MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2024-06-24   
301-264 1 Mount Savage MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-264 2 Mount Savage MD CMLDMDCH0MD  228C IDT AMERICA, CORP. - MD 240   2006-03-10   
301-264 3 Mount Savage MD MTSVMDMSRS0  9212 VERIZON MARYLAND, INC. 240      
301-264 4 Mount Savage MD MTSVMDMSRS0  9212 VERIZON MARYLAND, INC. 240      
301-264 5 Mount Savage MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2012-08-24   
301-264 6 Mount Savage MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-03-01   
301-264 7 Mount Savage MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-07-04   
301-264 8 Mount Savage MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-11-07   
301-264 9 Mount Savage MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2021-07-11   
301-265 A Washington Zone 6 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-265 0 Washington Zone 6 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-265 1 Washington Zone 6 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-265 2 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
301-265 3 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
301-265 4 Washington Zone 6 MD OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2002-11-30   
301-265 5 Washington Zone 6 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
301-265 6 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-07-23   
301-265 7 Washington Zone 6 MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2014-06-25   
301-265 8 Washington Zone 6 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-265 9 Washington Zone 6 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-266 A Waldorf MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-267 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-267 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 4 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-11-28   
301-267 8 Washington Zone 3 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2011-11-28   
301-267 9 Washington Zone 3 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2024-06-24   
301-268 A Cumberland MD CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
301-269 A Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-269 0 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-05-29   
301-269 1 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-05-29   
301-269 2 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-05-29   
301-269 3 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-01-02   
301-269 4 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-03-15   
301-269 5 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-03-15   
301-269 6 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-03-15   
301-269 7 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-04-29   
301-269 8 Washington Zone 2 MD   829J PAETEC ITEL, LLC 236   2015-06-29   
301-269 9 Washington Zone 2 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2015-10-22   
301-270 A Washington Zone 3 MD HYVLMDCMDS0  9212 VERIZON MARYLAND, INC. 236      
301-271 A Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 0 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 1 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 2 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 3 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 4 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 5 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 6 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 7 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-271 8 Thurmont MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-271 9 Thurmont MD THRMMDTHRS0  9212 VERIZON MARYLAND, INC. 240      
301-272 A Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 0 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2008-02-21   
301-272 1 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 2 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 3 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-12-01   
301-272 5 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-08   
301-272 6 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 7 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2008-02-21   
301-272 8 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-272 9 Washington Zone 2 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
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      
301-274 A Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 0 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 1 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 2 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 3 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 4 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      
301-274 5 Hughesville MD HUVLMDHVRS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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