Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-714 6 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-08-14   
240-714 7 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-08-14   
240-714 8 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-04-20   
240-714 9 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-04-20   
240-715 A Washington Zone 10 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-715 0 Washington Zone 10 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-12   
240-715 1 Washington Zone 10 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-12-12   
240-715 2 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-02-13   
240-715 3 Washington Zone 10 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-715 4 Washington Zone 10 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-715 5 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-02-13   
240-715 6 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2024-09-28   
240-715 7 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-05-06   
240-715 8 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-07-09   
240-715 9 Washington Zone 10 MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-716 A Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-716 0 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-10-10   
240-716 1 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-10-10   
240-716 2 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
240-716 3 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2014-09-21   
240-716 4 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
240-716 5 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
240-716 6 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
240-716 7 Washington Zone 5 MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2014-04-02   
240-716 8 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-01-13   
240-716 9 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-01-13   
240-717 A Leonardtown MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-717 0 Leonardtown MD WASHDC127MD  073H TELNYX LLC 236   2021-06-26   
240-717 1 Leonardtown MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-12-11   
240-717 2 Leonardtown MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-12-11   
240-717 3 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-09-24   
240-717 4 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-12-23   
240-717 5 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-02-21   
240-717 6 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-02-21   
240-717 7 Leonardtown MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-06-25   
240-717 8 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-07-12   
240-717 9 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2022-12-29   
240-718 A Lexington Park-Great Mills MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-718 1 Lexington Park-Great Mills MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
240-718 3 Lexington Park-Great Mills MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
240-718 4 Lexington Park-Great Mills MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-03   
240-718 6 Lexington Park-Great Mills MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-718 7 Lexington Park-Great Mills MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-718 8 Lexington Park-Great Mills MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-02-26   
240-719 A Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-719 0 Washington Zone 5 MD WASHDC127MD  073H TELNYX LLC 236   2017-03-14   
240-719 1 Washington Zone 5 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2016-12-12   
240-719 2 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-07-13   
240-719 3 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-12-15   
240-719 4 Washington Zone 5 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2017-07-05   
240-719 5 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2018-01-18   
240-719 6 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2018-01-18   
240-719 7 Washington Zone 5 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2017-04-14   
240-719 8 Washington Zone 5 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
240-719 9 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2016-06-10   
240-720 A Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-720 0 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-720 1 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-720 2 Gaithersburg MD   515J IP HORIZON LLC 236   2007-09-13   
240-720 3 Gaithersburg MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-12-04   
240-720 4 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-720 5 Gaithersburg MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-04-16   
240-720 6 Gaithersburg MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2008-11-01   
240-720 7 Gaithersburg MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
240-720 8 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-720 9 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-721 A Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
240-721 0 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-05-11   
240-721 1 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 2 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 3 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 4 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 5 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 6 Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236   2020-05-10   
240-721 7 Washington Zone 5 MD SLSPMD913MD  939H COMMIO, LLC 236   2021-09-16   
240-721 8 Washington Zone 5 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2020-05-11   
240-721 9 Washington Zone 5 MD SLSPMD913MD  939H COMMIO, LLC 236   2021-10-11   
240-722 A Ashton MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-722 0 Ashton MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-722 1 Ashton MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-11-25   
240-722 2 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-06-19   
240-722 5 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-03-06   
240-722 6 Ashton MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2014-08-21   
240-722 7 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-722 8 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-10-11   
240-722 9 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-06-19   
240-723 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-723 0 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-05-02   
240-723 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-01-08   
240-723 2 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-11-02   
240-723 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-03-28   
240-723 4 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-03-28   
240-723 5 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-02-03   
240-723 6 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-02-03   
240-723 7 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-02-03   
240-723 8 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-10-05   
240-723 9 Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-05-02   
240-724 A Washington Zone 6 MD WASHDC12OMD  4820 CAVALIER EAST, LLC - MD 236      
240-724 0 Washington Zone 6 MD WASHDC12OMD  4820 CAVALIER EAST, LLC - MD 236      
240-724 1 Washington Zone 6 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.