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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South English, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-301 A NLBTIAXO2MD  751F MCC TELEPHONY OF IOWA, LLC - IA 635      
319-301 1 NLBTIAXO2MD  751F MCC TELEPHONY OF IOWA, LLC - IA 635   2021-06-11   
319-667 A SENGIAXODS1  1247 MODERN COOP. TEL. CO. 635      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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