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: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

<< 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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-936 4 Huntsville AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2021-12-31   
256-936 5 Huntsville AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2021-12-31   
256-936 6 Huntsville AL HNVIAL180MD  7469 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 477   2022-01-13   
256-936 7 Huntsville AL HNVIALUNX2Z  624H ONVOY SPECTRUM, LLC 477   2022-01-20   
256-936 8 Huntsville AL HNVIALUNX2Z  624H ONVOY SPECTRUM, LLC 477   2022-01-20   
256-936 9 Huntsville AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477   2022-01-21   
256-937 A Huntsville AL HNVIALUNXRX  947D FARMERS TELECOMMUNICATIONS CORPORATION - AL 477      
256-937 0 Huntsville AL HNVIALUNXRX  947D FARMERS TELECOMMUNICATIONS CORPORATION - AL 477   2009-07-13   
256-937 1 Huntsville AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2013-05-18   
256-937 2 Huntsville AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2013-05-18   
256-937 3 Huntsville AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2013-05-18   
256-937 4 Huntsville AL HNVIALUNDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477   2013-06-27   
256-937 5 Huntsville AL HNVIALUNDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 477   2013-06-27   
256-937 6 Huntsville AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2015-02-05   
256-937 7 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2015-12-04   
256-937 8 Huntsville AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2014-06-16   
256-937 9 Huntsville AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2015-06-22   
256-938 A Decatur AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477      
256-938 0 Decatur AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2023-07-09   
256-938 1 Decatur AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2024-03-06   
256-938 2 Decatur AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2024-03-06   
256-938 3 Decatur AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2024-03-06   
256-938 4 Decatur AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2024-03-06   
256-938 5 Decatur AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2024-04-12   
256-938 6 Decatur AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2024-03-06   
256-938 7 Decatur AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2023-07-10   
256-938 8 Decatur AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2023-07-10   
256-938 9 Decatur AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2023-07-10   
256-939 A Cullman AL HNVIAL96DS2  476H AIRUS, INC. - AL 477      
256-939 0 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 1 Cullman AL HNVIAL96DS2  476H AIRUS, INC. - AL 477   2021-11-15   
256-939 2 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 3 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 4 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 5 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 6 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 7 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 8 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-08-05   
256-939 9 Cullman AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2023-03-09   
256-940 A Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-940 0 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2021-12-02   
256-940 1 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2021-12-02   
256-940 2 Jacksonville AL BRHMALMT92Z  5562 METROPCS, INC. 476   2021-12-03   
256-940 3 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2021-12-03   
256-940 4 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2021-12-03   
256-940 5 Jacksonville AL BRHMALHR8MD  939H COMMIO, LLC 476   2022-07-25   
256-940 6 Jacksonville AL BRHMALMTY4X  624H ONVOY SPECTRUM, LLC 476   2023-06-23   
256-940 7 Jacksonville AL BRHMALMT32Z  604E ONVOY, LLC - AL 476   2023-08-11   
256-940 8 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2022-03-04   
256-940 9 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2022-03-04   

<< 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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.