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
240-724 7 Washington Zone 6 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-724 8 Washington Zone 6 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-724 9 Washington Zone 6 MD WASHDC12OMD  4820 CAVALIER EAST, LLC - MD 236      
240-725 A Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-725 0 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-725 1 Lexington Park-Great Mills MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-725 2 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-725 3 Lexington Park-Great Mills MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-725 4 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-725 5 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-725 6 Lexington Park-Great Mills MD OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-725 7 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-725 8 Lexington Park-Great Mills MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-725 9 Lexington Park-Great Mills MD WASHDC127MD  073H TELNYX LLC 236      
240-726 A Washington Zone 4 MD ARTNVAARXGY  478J NUSO, LLC 236      
240-726 0 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-726 1 Washington Zone 4 MD ARTNVAARXGY  478J NUSO, LLC 236      
240-726 2 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-726 3 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-726 4 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-726 5 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-726 6 Washington Zone 4 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-726 7 Washington Zone 4 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-726 8 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-726 9 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-727 A Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 0 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 1 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 2 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 3 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 4 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 5 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 6 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 7 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 8 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-727 9 Cumberland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-728 A Washington Zone 10 MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-728 0 Washington Zone 10 MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-728 1 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-728 2 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-728 3 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-728 4 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-728 5 Washington Zone 10 MD WASHDC125MD  197D VONAGE AMERICA LLC 236      
240-728 6 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-728 7 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-728 8 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-728 9 Washington Zone 10 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 A Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 0 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 1 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 2 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 3 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 4 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 5 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 6 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 7 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 8 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-729 9 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-730 A Hagerstown MD HGTWMD53DMD  321J HD CARRIER LLC 240      
240-730 0 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
240-730 1 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-730 2 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-730 3 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-730 4 Hagerstown MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-730 5 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
240-730 6 Hagerstown MD FRDRMDFRXAX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240      
240-730 7 Hagerstown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-730 8 Hagerstown MD HGTWMD53DMD  321J HD CARRIER LLC 240      
240-730 9 Hagerstown MD HGTWMD53DMD  321J HD CARRIER LLC 240      
240-731 A Washington Zone 10 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-732 A Mount Airy MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-732 0 Mount Airy MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-732 1 Mount Airy MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-732 2 Mount Airy MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-732 3 Mount Airy MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-732 4 Mount Airy MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-732 5 Mount Airy MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-732 6 Mount Airy MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
240-732 7 Mount Airy MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240      
240-732 8 Mount Airy MD HGTWMD530MD  073H TELNYX LLC 240      
240-732 9 Mount Airy MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-733 A Ashton MD ARTNVAARXBY  965H FRACTEL, LLC 236      
240-733 0 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 1 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 2 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 3 Ashton MD ARTNVAARXBY  965H FRACTEL, LLC 236      
240-733 4 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 5 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 6 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 7 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 8 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-733 9 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-734 A Smithsburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-734 0 Smithsburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-734 1 Smithsburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-734 2 Smithsburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-734 3 Smithsburg MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-734 4 Smithsburg MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
240-734 5 Smithsburg MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      
240-734 6 Smithsburg MD   2593 CORE COMMUNICATIONS, INC.- MD 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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.