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
301-809 A Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 0 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 1 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 2 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 3 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 4 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 5 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 6 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 7 Washington Zone 14 MD BTVLMD127MD  5562 METROPCS, INC. 236   2019-06-17   
301-809 8 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-809 9 Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-810 A Buckeystown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
301-810 0 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-26   
301-810 1 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-16   
301-810 2 Buckeystown MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2016-12-09   
301-810 3 Buckeystown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2019-07-18   
301-810 4 Buckeystown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2004-09-13   
301-810 5 Buckeystown MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2007-04-07   
301-810 6 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-16   
301-810 7 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2018-06-16   
301-810 8 Buckeystown MD MRBGWVBUHPA  4095 FIBERNET, LLC - WV 240   2004-02-15   
301-810 9 Buckeystown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240   2021-11-08   
301-812 A Washington Zone 15 (Baltimore LATA) MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238      
301-812 0 Washington Zone 15 (Baltimore LATA) MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238      
301-812 1 Washington Zone 15 (Baltimore LATA) MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238      
301-812 2 Washington Zone 15 (Baltimore LATA) MD NRBHMDNEDS0  9212 VERIZON MARYLAND, INC. 238      
301-812 3 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-09-05   
301-812 4 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
301-812 5 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2013-08-28   
301-812 6 Washington Zone 15 (Baltimore LATA) MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2013-11-26   
301-812 7 Washington Zone 15 (Baltimore LATA) MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2010-10-04   
301-812 8 Washington Zone 15 (Baltimore LATA) MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-22   
301-812 9 Washington Zone 15 (Baltimore LATA) MD HRNDVACKAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238   2004-01-31   
301-813 A Washington Zone 2 MD VINNVACB2MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
301-814 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-815 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-816 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-817 A Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-818 A Waldorf MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-819 A Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-820 A Gaithersburg MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-820 0 Gaithersburg MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-23   
301-820 1 Gaithersburg MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-23   
301-820 2 Gaithersburg MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2010-09-14   
301-820 3 Gaithersburg MD WASHDCMTX7X  2697 CTC COMMUNICATIONS CORP. - MD 236   2011-05-27   
301-820 4 Gaithersburg MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-820 5 Gaithersburg MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-11-04   
301-820 6 Gaithersburg MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-820 7 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2011-06-17   
301-820 8 Gaithersburg MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-02-23   

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

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