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: 251 [Rate centres in NPA 251] [Dial plan for NPA 251]

<< 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 80 81 82 83 84 85 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-279 6 Fairhope AL   8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 480   2008-07-07   
251-279 7 Fairhope AL   604E ONVOY, LLC - AL 480   2008-11-13   
251-279 8 Fairhope AL   604E ONVOY, LLC - AL 480   2008-11-13   
251-279 9 Fairhope AL   604E ONVOY, LLC - AL 480   2008-11-13   
251-280 A Flomaton AL   045L BHN IP ENABLED SERVICES, LLC 480      
251-280 0 Flomaton AL   145J TERRA NOVA TELECOM INC. 480   2025-08-02   
251-280 1 Flomaton AL   604E ONVOY, LLC - AL 480   2019-04-13   
251-280 2 Flomaton AL   604E ONVOY, LLC - AL 480   2019-11-09   
251-280 3 Flomaton AL   604E ONVOY, LLC - AL 480   2019-11-09   
251-280 4 Flomaton AL   045L BHN IP ENABLED SERVICES, LLC 480      
251-280 5 Flomaton AL   624H ONVOY SPECTRUM, LLC 480   2021-11-11   
251-280 6 Flomaton AL   624H ONVOY SPECTRUM, LLC 480   2021-11-11   
251-280 7 Flomaton AL   604E ONVOY, LLC - AL 480   2022-05-10   
251-280 8 Flomaton AL   073H TELNYX LLC 480   2021-12-18   
251-280 9 Flomaton AL   604E ONVOY, LLC - AL 480   2022-05-10   
251-281 A Mobile AL MOBLALIHG02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-281 0 Mobile AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 480   2010-12-09   
251-281 1 Mobile AL   947G TELEPAK NETWORKS, INC. - AL 480   2008-11-02   
251-281 2 Mobile AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 480   2008-07-17   
251-281 3 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2008-08-22   
251-281 4 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2008-08-22   
251-281 5 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2008-08-22   
251-281 6 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2008-08-22   
251-281 7 Mobile AL   6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 480   2008-12-13   
251-281 8 Mobile AL   072F BANDWIDTH.COM CLEC, LLC - AL 480   2008-11-30   
251-281 9 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2008-03-30   
251-282 A Finchburg AL FNBGALXARS0  0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 0 Finchburg AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-282 1 Finchburg AL   0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 2 Finchburg AL   0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 3 Finchburg AL   0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 4 Finchburg AL   0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 5 Finchburg AL   0306 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 480      
251-282 6 Finchburg AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-282 7 Finchburg AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-282 8 Finchburg AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-282 9 Finchburg AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480      
251-283 A Mobile AL MOBLALAZ14Z  197D VONAGE AMERICA LLC 480      
251-283 0 Mobile AL   197D VONAGE AMERICA LLC 480   2018-05-04   
251-283 1 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2020-03-15   
251-283 2 Mobile AL   604E ONVOY, LLC - AL 480   2019-06-05   
251-283 3 Mobile AL   604E ONVOY, LLC - AL 480   2019-06-05   
251-283 4 Mobile AL   604E ONVOY, LLC - AL 480   2019-06-05   
251-283 5 Mobile AL   604E ONVOY, LLC - AL 480   2019-06-05   
251-283 6 Mobile AL   8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 480   2019-08-22   
251-283 7 Mobile AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 480   2019-08-10   
251-283 8 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2020-03-15   
251-283 9 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2020-03-15   
251-284 A Foley AL FOLYALXA8MD  6916 ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 480      
251-284 0 Foley AL   6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 480   2009-12-18   

<< 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 80 81 82 83 84 85 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.