Local Calling Guide

Area code/prefix search

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-316 7 Iowa Falls IA 221F ONVOY, LLC - IA 632   2008-02-25   
641-316 8 Iowa Falls IA 221F ONVOY, LLC - IA 632   2012-12-14   
641-322 2 Corning IA 221F ONVOY, LLC - IA 632   2021-04-16   
641-322 8 Corning IA 221F ONVOY, LLC - IA 632   2021-04-16   
641-323 4 Northwood IA 221F ONVOY, LLC - IA 632   2016-04-06   
641-323 5 Northwood IA 221F ONVOY, LLC - IA 632   2016-04-06   
641-323 8 Northwood IA 221F ONVOY, LLC - IA 632   2017-06-22   
641-324 6 Northwood IA 221F ONVOY, LLC - IA 632   2018-04-14   
641-324 7 Northwood IA 221F ONVOY, LLC - IA 632   2008-08-29   
641-328 0 Marshalltown IA 221F ONVOY, LLC - IA 632   2024-04-16   
641-334 A Rose Hill IA 221F ONVOY, LLC - IA 632      
641-334 3 Rose Hill IA 221F ONVOY, LLC - IA 632   2020-08-31   
641-334 4 Rose Hill IA 221F ONVOY, LLC - IA 632   2020-08-31   
641-334 5 Rose Hill IA 221F ONVOY, LLC - IA 632   2020-11-20   
641-334 6 Rose Hill IA 221F ONVOY, LLC - IA 632   2019-10-25   
641-334 7 Rose Hill IA 221F ONVOY, LLC - IA 632   2021-04-16   
641-334 8 Rose Hill IA 221F ONVOY, LLC - IA 632   2021-04-16   
641-341 A Thornton IA 221F ONVOY, LLC - IA 632      
641-341 4 Thornton IA 221F ONVOY, LLC - IA 632   2022-02-06   
641-352 7 Marshalltown IA 221F ONVOY, LLC - IA 632   2008-02-25   
641-354 1 Marshalltown IA 221F ONVOY, LLC - IA 632   2024-03-02   
641-354 5 Marshalltown IA 221F ONVOY, LLC - IA 632   2019-09-20   
641-381 1 Northwood IA 221F ONVOY, LLC - IA 632   2020-11-23   
641-381 2 Northwood IA 221F ONVOY, LLC - IA 632   2018-02-26   
641-381 5 Northwood IA 221F ONVOY, LLC - IA 632   2019-09-20   
641-381 6 Northwood IA 221F ONVOY, LLC - IA 632   2019-09-20   
641-381 9 Northwood IA 221F ONVOY, LLC - IA 632   2020-08-10   
641-384 4 Belmond IA 221F ONVOY, LLC - IA 632   2020-04-02   
641-384 5 Belmond IA 221F ONVOY, LLC - IA 632   2020-10-07   
641-384 6 Belmond IA 221F ONVOY, LLC - IA 632   2020-10-07   
641-390 6 Northwood IA 221F ONVOY, LLC - IA 632   2012-12-14   
641-390 8 Northwood IA 221F ONVOY, LLC - IA 632   2012-12-14   
641-390 9 Northwood IA 221F ONVOY, LLC - IA 632   2012-12-14   
641-400 A Humeston IA 221F ONVOY, LLC - IA 632      
641-401 A Swaledale IA 221F ONVOY, LLC - IA 632      
641-401 1 Swaledale IA 221F ONVOY, LLC - IA 632   2020-08-10   
641-401 2 Swaledale IA 221F ONVOY, LLC - IA 632   2020-11-20   
641-401 3 Swaledale IA 221F ONVOY, LLC - IA 632   2020-11-20   
641-401 4 Swaledale IA 221F ONVOY, LLC - IA 632   2018-12-23   
641-401 6 Swaledale IA 221F ONVOY, LLC - IA 632   2020-02-22   
641-401 8 Swaledale IA 221F ONVOY, LLC - IA 632   2019-10-28   
641-406 A Meservey IA 221F ONVOY, LLC - IA 632      
641-406 2 Meservey IA 221F ONVOY, LLC - IA 632   2020-11-23   
641-406 3 Meservey IA 221F ONVOY, LLC - IA 632   2020-11-23   
641-406 4 Meservey IA 221F ONVOY, LLC - IA 632   2018-12-23   
641-406 5 Meservey IA 221F ONVOY, LLC - IA 632   2020-08-31   
641-406 6 Meservey IA 221F ONVOY, LLC - IA 632   2020-08-31   
641-406 8 Meservey IA 221F ONVOY, LLC - IA 632   2019-10-28   
641-418 3 Corning IA 221F ONVOY, LLC - IA 632   2020-08-10   
641-418 6 Corning IA 221F ONVOY, LLC - IA 632   2018-11-18   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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