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
240-892 6 Washington Zone 15 MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-892 7 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-892 8 Washington Zone 15 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-893 A Washington Zone 3 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-894 A Lexington Park-Great Mills MD WASHDC12NMD  490J DISH WIRELESS, LLC 236      
240-894 0 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-894 1 Lexington Park-Great Mills MD   876D ONVOY, LLC - MD 236      
240-894 8 Lexington Park-Great Mills MD WASHDC12NMD  490J DISH WIRELESS, LLC 236      
240-895 A Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 0 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 2 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 3 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 4 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 5 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 6 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 7 Lexington Park-Great Mills MD LXPKMDLXDS0  9212 VERIZON MARYLAND, INC. 236      
240-895 8 Lexington Park-Great Mills MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-895 9 Lexington Park-Great Mills MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-896 A Hagerstown MD HGTWMD53FMD  490J DISH WIRELESS, LLC 240      
240-896 0 Hagerstown MD   145J TERRA NOVA TELECOM INC. 240      
240-896 1 Hagerstown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-896 2 Hagerstown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-896 3 Hagerstown MD   876D ONVOY, LLC - MD 240      
240-896 4 Hagerstown MD   876D ONVOY, LLC - MD 240      
240-896 5 Hagerstown MD   876D ONVOY, LLC - MD 240      
240-896 6 Hagerstown MD   624H ONVOY SPECTRUM, LLC 240      
240-896 7 Hagerstown MD   876D ONVOY, LLC - MD 240      
240-896 8 Hagerstown MD   876D ONVOY, LLC - MD 240      
240-896 9 Hagerstown MD HGTWMD53FMD  490J DISH WIRELESS, LLC 240      
240-897 A Washington Zone 16 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-897 0 Washington Zone 16 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
240-897 1 Washington Zone 16 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-897 2 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-897 3 Washington Zone 16 MD BTVLMD127MD  5562 METROPCS, INC. 236      
240-897 4 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-897 5 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-897 6 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-897 7 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
240-897 8 Washington Zone 16 MD WASHDC127MD  073H TELNYX LLC 236      
240-897 9 Washington Zone 16 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-898 A Washington Zone 4 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-898 0 Washington Zone 4 MD SLSPMD913MD  939H COMMIO, LLC 236      
240-898 1 Washington Zone 4 MD SLSPMD913MD  939H COMMIO, LLC 236      
240-898 2 Washington Zone 4 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-898 3 Washington Zone 4 MD SLSPMD913MD  939H COMMIO, LLC 236      
240-898 4 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-898 5 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-898 6 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-898 7 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-898 8 Washington Zone 4 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-898 9 Washington Zone 4 MD WASHDC12KMD  145J TERRA NOVA TELECOM INC. 236      
240-899 A Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
240-900 A Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 0 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 1 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 2 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 3 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 4 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 5 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 6 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 7 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 8 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-900 9 Washington Zone 4 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-901 A La Plata MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
240-901 0 La Plata MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-901 1 La Plata MD CHCHMDBE1MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
240-901 2 La Plata MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-901 3 La Plata MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-901 4 La Plata MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-901 5 La Plata MD WASHDC127MD  073H TELNYX LLC 236      
240-901 7 La Plata MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
240-901 8 La Plata MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-901 9 La Plata MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-902 A Damascus (Hagerstown LATA) MD CMLDMDCMAMD  506J TWILIO INTERNATIONAL, INC. 240      
240-902 2 Damascus (Hagerstown LATA) MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-902 3 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-902 4 Damascus (Hagerstown LATA) MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-902 5 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-902 6 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-902 7 Damascus (Hagerstown LATA) MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-902 8 Damascus (Hagerstown LATA) MD CMLDMDCMAMD  506J TWILIO INTERNATIONAL, INC. 240      
240-903 A Indian Head MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-903 0 Indian Head MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-903 1 Indian Head MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-903 2 Indian Head MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-903 3 Indian Head MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-903 4 Indian Head MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-903 5 Indian Head MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-903 6 Indian Head MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-903 7 Indian Head MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
240-903 8 Indian Head MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-903 9 Indian Head MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-904 A Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 0 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 1 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 2 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 3 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 4 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 5 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
240-904 6 Laurel (Baltimore LATA) MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      

<< 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: LES.NET

Like this site? We accept donations via PayPal.