Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-657 A Ainsworth IA ANWOIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 0 Ainsworth IA DVNPIA80X8X  444G AUREON COMMUNICATIONS, LLC 634   2021-10-18   
319-657 1 Ainsworth IA ANWOIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 2 Ainsworth IA ANWOIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 3 Ainsworth IA ANWOIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 4 Ainsworth IA ANWOIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 5 Ainsworth IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2020-06-27   
319-657 6 Ainsworth IA MNPLIAXCGMD  624H ONVOY SPECTRUM, LLC 634   2024-12-19   
319-657 7 Ainsworth IA DVNPIAEA9MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634   2016-10-13   
319-657 8 Ainsworth IA DVNPIADTGMD  221F ONVOY, LLC - IA 634   2021-03-13   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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