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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-509 9 Washington Zone 14 (Baltimore LATA) MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-01-02   
240-510 A Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-510 0 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-510 1 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2007-03-26   
240-510 2 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2007-03-26   
240-510 3 Washington Zone 15 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-01-12   
240-510 4 Washington Zone 15 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2013-06-16   
240-510 5 Washington Zone 15 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-11-25   
240-510 6 Washington Zone 15 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2013-06-16   
240-510 7 Washington Zone 15 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2014-05-10   
240-510 8 Washington Zone 15 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2014-08-22   
240-510 9 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-512 A Washington Zone 13 (Baltimore LATA) MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
240-512 0 Washington Zone 13 (Baltimore LATA) MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-05-09   
240-512 1 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
240-512 2 Washington Zone 13 (Baltimore LATA) MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-12-03   
240-512 3 Washington Zone 13 (Baltimore LATA) MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
240-512 4 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-07-15   
240-512 5 Washington Zone 13 (Baltimore LATA) MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-11-23   
240-512 6 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2018-05-31   
240-512 7 Washington Zone 13 (Baltimore LATA) MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2014-06-25   
240-512 8 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
240-512 9 Washington Zone 13 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
240-513 A Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-513 0 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2014-09-21   
240-513 1 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2011-12-03   
240-513 2 Hagerstown MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2013-11-17   
240-513 3 Hagerstown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2013-12-06   
240-513 4 Hagerstown MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2015-08-01   
240-513 5 Hagerstown MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2015-05-01   
240-513 6 Hagerstown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-05-14   
240-513 7 Hagerstown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-05-14   
240-513 8 Hagerstown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-05-14   
240-513 9 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2015-10-09   
240-514 A Washington Zone 11 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-514 0 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236      
240-514 1 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236      
240-514 2 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236      
240-514 3 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236      
240-514 4 Washington Zone 11 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-03-25   
240-514 5 Washington Zone 11 MD   829J PAETEC ITEL, LLC 236      
240-514 6 Washington Zone 11 MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-19   
240-514 7 Washington Zone 11 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-07   
240-514 8 Washington Zone 11 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-07   
240-514 9 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
240-515 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-515 0 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 1 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 2 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-01-31   
240-515 3 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-11-29   
240-515 4 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 5 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 6 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 7 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 8 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
240-515 9 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-02-19   
240-516 A Washington Zone 12 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
240-516 0 Washington Zone 12 MD   829J PAETEC ITEL, LLC 236      
240-516 1 Washington Zone 12 MD   829J PAETEC ITEL, LLC 236      
240-516 2 Washington Zone 12 MD   829J PAETEC ITEL, LLC 236      
240-516 3 Washington Zone 12 MD   829J PAETEC ITEL, LLC 236      
240-516 4 Washington Zone 12 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2013-06-16   
240-516 5 Washington Zone 12 MD   829J PAETEC ITEL, LLC 236      
240-516 6 Washington Zone 12 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-06-06   
240-516 7 Washington Zone 12 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2007-04-05   
240-516 8 Washington Zone 12 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2008-12-13   
240-516 9 Washington Zone 12 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2013-07-25   
240-517 A Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-517 0 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2014-12-12   
240-517 1 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2014-12-12   
240-517 2 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2014-12-12   
240-517 3 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-09-01   
240-517 4 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-09-01   
240-517 5 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-09-01   
240-517 6 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-06-16   
240-517 7 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-06-16   
240-517 8 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-06-16   
240-517 9 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-03-04   
240-518 A Waldorf MD ARTNVAARXKY  732J NUSO, LLC 236      
240-518 0 Waldorf MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2023-07-24   
240-518 1 Waldorf MD ARTNVAARXKY  732J NUSO, LLC 236   2022-10-30   
240-518 2 Waldorf MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-15   
240-518 3 Waldorf MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-15   
240-518 4 Waldorf MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-06-17   
240-518 5 Waldorf MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-02-07   
240-518 6 Waldorf MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2023-02-21   
240-518 7 Waldorf MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-06-17   
240-518 8 Waldorf MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2012-11-10   
240-518 9 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-519 A Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-519 0 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-519 1 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-519 2 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-11   
240-519 3 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-11   
240-519 4 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-11   
240-519 5 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-01-11   
240-519 6 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-519 7 Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-09-02   
240-519 8 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-06-12   
240-519 9 Washington Zone 2 MD SLSPMD913MD  939H COMMIO, LLC 236   2023-12-23   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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