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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
301-623 5 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 6 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 7 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-623 8 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-623 9 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-624 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 0 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2019-08-30   
301-624 1 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 2 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 3 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2014-12-13   
301-624 4 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 5 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 6 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 7 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 8 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-624 9 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2014-12-13   
301-625 A Washington Zone 3 MD SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-626 A Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-627 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-628 A Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 0 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 1 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 2 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 3 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 4 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 5 Washington Zone 3 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-628 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-11-21   
301-628 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-11-21   
301-628 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-11-21   
301-628 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-08-19   
301-629 A Washington Zone 14 (Baltimore LATA) MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
301-629 0 Washington Zone 14 (Baltimore LATA) MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
301-629 1 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-24   
301-629 2 Washington Zone 14 (Baltimore LATA) MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
301-629 3 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-24   
301-629 4 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-24   
301-629 5 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-24   
301-629 6 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
301-629 7 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
301-629 8 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-24   
301-629 9 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
301-630 A Washington Zone 6 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-631 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 0 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 1 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 2 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 3 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 4 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2015-11-27   
301-631 5 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 6 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 7 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 8 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-631 9 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-632 A Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 0 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-632 1 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-632 2 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 3 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 4 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 5 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 6 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 7 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 8 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-632 9 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-633 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-634 A Washington Zone 2 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-635 A Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-635 0 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-16   
301-635 1 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-05-16   
301-635 2 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-01-07   
301-635 3 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 4 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 5 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-09-14   
301-635 6 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-09   
301-635 7 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-02-09   
301-635 8 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-11-03   
301-635 9 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2023-09-07   
301-636 A Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 0 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2019-10-28   
301-636 1 Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 2 Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 3 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-08-27   
301-636 4 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2010-01-09   
301-636 5 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-27   
301-636 6 Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 7 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-27   
301-636 8 Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-636 9 Washington Zone 5 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-637 A Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-637 0 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   
301-637 1 Washington Zone 10 MD WASHDCMTX7X  2697 CTC COMMUNICATIONS CORP. - MD 236   2005-12-15   
301-637 2 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-04-07   
301-637 3 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-04-07   
301-637 4 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-637 5 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
301-637 6 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
301-637 7 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-04-03   
301-637 8 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-06-17   
301-637 9 Washington Zone 10 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2010-10-11   
301-638 A Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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