Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-458 3 Whiting IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-458 4 Whiting IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-458 6 Whiting IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-458 9 Whiting IA 221F ONVOY, LLC - IA 630   2021-01-16   
712-474 0 Battle Creek IA 221F ONVOY, LLC - IA 630   2023-07-24   
712-474 8 Battle Creek IA 221F ONVOY, LLC - IA 630   2023-03-20   
712-494 A Le Mars IA 221F ONVOY, LLC - IA 630   2026-02-01   
712-494 0 Le Mars IA 221F ONVOY, LLC - IA 630   2026-02-01   
712-502 2 Sioux City IA 221F ONVOY, LLC - IA 630   2025-02-01   
712-570 8 Sioux City IA 221F ONVOY, LLC - IA 630   2024-04-14   
712-570 9 Sioux City IA 221F ONVOY, LLC - IA 630   2024-04-14   
712-631 3 Sheldon IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-639 6 Sioux City IA 221F ONVOY, LLC - IA 630   2019-09-20   
712-670 0 Sioux City IA 221F ONVOY, LLC - IA 630   2024-04-15   
712-717 A Sioux City IA 221F ONVOY, LLC - IA 630      
712-717 0 Sioux City IA 221F ONVOY, LLC - IA 630   2019-05-11   
712-717 5 Sioux City IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-717 6 Sioux City IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-717 7 Sioux City IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-724 8 Ashton IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-724 9 Ashton IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-740 1 Sioux City IA 221F ONVOY, LLC - IA 630   2026-01-12   
712-740 2 Sioux City IA 221F ONVOY, LLC - IA 630   2026-06-22   
712-788 6 Orange City IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-788 7 Orange City IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-791 A Sioux City IA 221F ONVOY, LLC - IA 630   2025-06-09   
712-791 0 Sioux City IA 221F ONVOY, LLC - IA 630   2025-06-09   
712-798 2 George IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-798 3 George IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-798 7 George IA 221F ONVOY, LLC - IA 630   2021-05-10   
712-798 8 George IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-812 0 Sioux City IA 221F ONVOY, LLC - IA 630   2025-10-12   
712-840 4 Mapleton IA 221F ONVOY, LLC - IA 630   2021-10-16   
712-882 7 Mapleton IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-882 8 Mapleton IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-883 3 Danbury IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-883 5 Danbury IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-883 6 Danbury IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-883 8 Danbury IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-883 9 Danbury IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-900 A Holstein IA 221F ONVOY, LLC - IA 630      
712-900 0 Holstein IA 221F ONVOY, LLC - IA 630   2019-08-29   
712-900 1 Holstein IA 221F ONVOY, LLC - IA 630   2019-08-29   
712-900 2 Holstein IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-900 3 Holstein IA 221F ONVOY, LLC - IA 630   2021-03-08   
712-938 1 Merrill IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-938 3 Merrill IA 221F ONVOY, LLC - IA 630   2018-10-19   
712-938 4 Merrill IA 221F ONVOY, LLC - IA 630   2019-07-25   
712-938 9 Merrill IA 221F ONVOY, LLC - IA 630   2021-05-10   
712-955 A Merrill IA 221F ONVOY, LLC - IA 630      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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