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
240-256 1 Leonardtown MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-256 2 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-256 3 Leonardtown MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-256 4 Leonardtown MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-256 5 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-256 6 Leonardtown MD WASHDC127MD  073H TELNYX LLC 236      
240-256 8 Leonardtown MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-256 9 Leonardtown MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-257 A Nanjemoy MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-257 0 Nanjemoy MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-257 1 Nanjemoy MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-257 2 Nanjemoy MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-257 3 Nanjemoy MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-257 4 Nanjemoy MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-257 5 Nanjemoy MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-257 6 Nanjemoy MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-257 7 Nanjemoy MD   876D ONVOY, LLC - MD 236      
240-257 8 Nanjemoy MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-257 9 Nanjemoy MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-258 A Ridge MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-258 0 Ridge MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-258 1 Ridge MD TYCRVA03AMD  2589 US LEC OF MARYLAND, INC. 236      
240-258 2 Ridge MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-258 3 Ridge MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-258 4 Ridge MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
240-258 5 Ridge MD CHCHMDBEXCX  228C IDT AMERICA, CORP. - MD 236      
240-258 6 Ridge MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-258 7 Ridge MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-258 8 Ridge MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-258 9 Ridge MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-259 A Hughesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-259 0 Hughesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-259 1 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-259 2 Hughesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-259 3 Hughesville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-259 4 Hughesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-259 5 Hughesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-259 6 Hughesville MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-259 7 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-259 8 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-259 9 Hughesville MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-260 A Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-260 0 Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-260 1 Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-260 2 Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-260 3 Washington Zone 14 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-260 4 Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-260 5 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-260 6 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-260 7 Washington Zone 14 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-260 8 Washington Zone 14 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-260 9 Washington Zone 14 MD BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-261 A Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 0 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 1 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 2 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 3 Gaithersburg MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-261 4 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-261 5 Gaithersburg MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-261 6 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-261 7 Gaithersburg MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-261 8 Gaithersburg MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-261 9 Gaithersburg MD   515J IP HORIZON LLC 236      
240-262 A Lexington Park-Great Mills MD   318J COMCAST IP PHONE, LLC 236      
240-262 0 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-262 1 Lexington Park-Great Mills MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-262 2 Lexington Park-Great Mills MD WASHDC12KMD  145J TERRA NOVA TELECOM INC. 236      
240-262 3 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-262 4 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-262 5 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-263 A Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-02-19   
240-263 0 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
240-263 1 Washington Zone 2 MD   876D ONVOY, LLC - MD 236      
240-263 2 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 3 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 4 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 5 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 6 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 7 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 8 Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-263 9 Washington Zone 2 MD   876D ONVOY, LLC - MD 236      
240-264 A Laurel MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
240-264 0 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-264 1 Laurel MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
240-264 2 Laurel MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-264 3 Laurel MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
240-264 4 Laurel MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-264 5 Laurel MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-264 6 Laurel MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-264 7 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-264 8 Laurel MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
240-264 9 Laurel MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 A Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 0 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 1 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 2 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 3 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 4 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 5 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-265 6 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 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.