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: 5852 HUXLEY COMMUNICATIONS COOPERATIVE - IA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
515-220 A Cambridge IA CMBRIAAB1MD  632      
515-220 4 Cambridge IA CMBRIAAB1MD  632   2001-11-17   
515-228 A Slater IA SLTRIAAD1MD  632      
515-228 3 Slater IA SLTRIAAD1MD  632   2001-11-17   
515-367 7 Elkhart IA CMBRIAAB1MD  632   2004-09-17   

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

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