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
240-605 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 A Washington Zone 3 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 4 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-606 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-607 A Waldorf MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-607 0 Waldorf MD   145J TERRA NOVA TELECOM INC. 236      
240-607 1 Waldorf MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-607 2 Waldorf MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-607 3 Waldorf MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-607 4 Waldorf MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-607 5 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-607 6 Waldorf MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-607 7 Waldorf MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-607 8 Waldorf MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-607 9 Waldorf MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-608 A Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-608 0 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-608 1 Frederick MD FRDRMDFRIMD  551G NUSO, LLC 240      
240-608 2 Frederick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-608 3 Frederick MD FRDRMDFRPMD  2589 US LEC OF MARYLAND, INC. 240      
240-608 4 Frederick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-608 5 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-608 6 Frederick MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-608 7 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240      
240-608 8 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-608 9 Frederick MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
240-609 A Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-609 0 Cumberland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-609 1 Cumberland MD CMLDMDCH0MD  228C IDT AMERICA, CORP. - MD 240      
240-609 2 Cumberland MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
240-609 3 Cumberland MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-609 4 Cumberland MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      
240-609 5 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-609 6 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-609 7 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-609 8 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-609 9 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-610 A Washington Zone 4 MD CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC.- MD 236   2024-01-16   
240-610 0 Washington Zone 4 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-610 1 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-610 2 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-610 3 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-610 4 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-610 5 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-610 6 Washington Zone 4 MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-610 7 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-610 8 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-610 9 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-612 A Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 0 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 1 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 2 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 3 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 4 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 5 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 6 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 7 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 8 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-612 9 Washington Zone 5 MD LARLMDCC5MD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236      
240-613 A Washington Zone 4 MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-613 0 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 1 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 2 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 3 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 4 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 5 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 6 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 7 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 8 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-613 9 Washington Zone 4 MD   2589 US LEC OF MARYLAND, INC. 236      
240-614 A Washington Zone 10 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-614 0 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-614 1 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-614 2 Washington Zone 10 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-614 3 Washington Zone 10 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-614 4 Washington Zone 10 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-614 5 Washington Zone 10 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-614 6 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-614 7 Washington Zone 10 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-614 8 Washington Zone 10 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-614 9 Washington Zone 10 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 A Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 0 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 1 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 2 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 3 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 4 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 5 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-615 6 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-615 7 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-615 8 Washington Zone 4 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-615 9 Washington Zone 4 MD BTVLMD127MD  5562 METROPCS, INC. 236      

<< 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: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.