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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OCN: 1206 IAMO COMMUNICATIONS, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-534 A Northboro IA COINIAXODS0  644      
712-583 A Coin IA COINIAXODS0  644      

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

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