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.

OCN: 321J HD CARRIER LLC

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
937-518 A Dayton OH DYTNOHKT9MD  328      
937-518 8 Dayton OH DYTNOHKT9MD  328   2020-09-25   
937-518 9 Dayton OH DYTNOHKT9MD  328   2020-09-25   
938-262 5 Gadsden AL   476   2025-10-27   
938-274 4 Cullman AL   477   2025-10-30   
938-277 3 Decatur AL   477   2025-10-30   
938-278 1 Huntsville AL   477   2025-07-19   
938-278 2 Huntsville AL   477   2025-07-19   
938-278 3 Huntsville AL   477   2025-07-19   
938-282 3 Anniston AL   476   2025-10-27   
940-530 A Wichita Falls TX WCFLTXFGFMD  548      
940-530 8 Wichita Falls TX WCFLTXFGFMD  548   2023-05-11   
940-530 9 Wichita Falls TX WCFLTXFGFMD  548   2023-05-11   
941-200 7 North Port FL   952   2016-06-12   
941-200 8 North Port FL   952   2016-06-12   
941-200 9 North Port FL TAMPFLXAX3X  952   2016-06-12   
941-208 7 Englewood FL   952   2016-01-03   
941-221 3 Venice FL   952   2016-08-27   
941-221 4 Venice FL TAMPFLXAX3X  952   2016-08-27   
941-221 5 Venice FL TAMPFLXAX3X  952   2016-08-27   
941-221 6 Venice FL TAMPFLXAX3X  952   2016-08-27   
941-221 7 Venice FL TAMPFLXAX3X  952   2016-08-27   
941-221 8 Venice FL TAMPFLXAX3X  952   2016-08-27   
941-931 0 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 1 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 2 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 3 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 5 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 6 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 7 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 8 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-931 9 Sarasota FL TAMPFLXAX3X  952   2016-02-06   
941-940 0 Palmetto FL   952   2016-02-06   
941-940 1 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 2 Palmetto FL   952   2016-02-06   
941-940 3 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 4 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 5 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 6 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 7 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 8 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-940 9 Palmetto FL TAMPFLXAX3X  952   2016-02-06   
941-942 0 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 1 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 2 Bradenton FL   952   2016-02-06   
941-942 3 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 4 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 5 Bradenton FL   952   2016-02-06   
941-942 6 Bradenton FL   952   2016-02-06   
941-942 7 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 8 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-942 9 Bradenton FL TAMPFLXAX3X  952   2016-02-06   
941-944 0 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 1 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 2 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 3 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 4 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 5 Venice FL   952   2016-02-06   
941-944 6 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 7 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 8 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-944 9 Venice FL TAMPFLXAX3X  952   2016-02-06   
941-991 0 Myakka FL TAMPFLXAXKZ  952   2016-02-06   
941-991 1 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 2 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 3 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 4 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 5 Myakka FL   952   2016-02-06   
941-991 6 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 7 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 8 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-991 9 Myakka FL TAMPFLXAX3X  952   2016-02-06   
941-992 A North Port FL TAMPFLXAX3X  952      
941-992 0 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 1 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 2 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 3 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 4 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 5 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 6 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 7 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 8 North Port FL TAMPFLXAX3X  952   2016-02-06   
941-992 9 North Port FL TAMPFLXAX3X  952   2016-02-06   
943-251 5 Griffin GA   438   2025-09-14   
943-251 6 Griffin GA   438   2025-09-14   
943-272 6 Covington GA   438   2025-09-14   
943-272 7 Covington GA   438   2025-09-14   
943-280 4 Atlanta South GA   438   2025-09-14   
943-280 5 Atlanta South GA   438   2025-09-14   
943-284 4 Newnan GA   438   2025-09-14   
943-284 5 Newnan GA   438   2025-09-14   
943-286 7 Atlanta Northeast GA   438   2025-10-06   
943-286 8 Atlanta Northeast GA   438   2025-10-06   
945-949 A Dallas TX   552   2025-08-16   
945-949 7 Dallas TX   552   2025-08-16   
945-949 8 Dallas TX   552   2025-08-16   
945-949 9 Dallas TX   552   2025-08-16   
949-799 5 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 6 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 7 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   

<< 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 >>

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.