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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Switch: MARNIACODS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-200 A Cedar Rapids IA 695G IMON COMMUNICATIONS, LLC - IA 635      
319-259 7 Iowa City IA 695G IMON COMMUNICATIONS, LLC - IA 635   2020-10-22   
319-260 A Cedar Falls IA 695G IMON COMMUNICATIONS, LLC - IA 635      
319-318 5 Vinton IA 695G IMON COMMUNICATIONS, LLC - IA 635   2019-09-05   
319-340 6 Waterloo IA 695G IMON COMMUNICATIONS, LLC - IA 635   2024-07-01   
319-519 6 Iowa City IA 695G IMON COMMUNICATIONS, LLC - IA 635   2016-08-07   
319-559 2 Waverly IA 695G IMON COMMUNICATIONS, LLC - IA 635   2016-02-26   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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