Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-377 A Gravity IA GRVTIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      
712-377 0 Gravity IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644   2024-10-25   
712-377 3 Gravity IA   221F ONVOY, LLC - IA 644   2019-11-28   
712-377 4 Gravity IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644   2012-09-17   
712-377 5 Gravity IA   221F ONVOY, LLC - IA 644   2021-04-02   
712-377 6 Gravity IA   221F ONVOY, LLC - IA 644   2021-04-02   
712-377 7 Gravity IA   965H FRACTEL, LLC 644   2020-01-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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