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: 878

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-878 A Ireton IA SXCYIADTX4X  516J TON80 COMMUNICATIONS, LLC 630      
712-878 7 Ireton IA SXCYIADTX4X  516J TON80 COMMUNICATIONS, LLC 630   2022-05-16   
712-878 8 Ireton IA   145J TERRA NOVA TELECOM INC. 630   2025-05-24   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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