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.
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-571 A Westphalia IA OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-571 0 Westphalia IA OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      
712-571 8 Westphalia IA OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644   2024-08-05   
712-571 9 Westphalia IA OMAHNENWXCY  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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