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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: KGSLIA050MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-312 9 Pierson IA 205H WESTERN IOWA TELEPHONE ASSOCIATION - IA 630   2022-08-11   
712-383 A Kingsley IA 205H WESTERN IOWA TELEPHONE ASSOCIATION - IA 630      
712-383 3 Kingsley IA 205H WESTERN IOWA TELEPHONE ASSOCIATION - IA 630   2015-04-04   
712-383 5 Kingsley IA 205H WESTERN IOWA TELEPHONE ASSOCIATION - IA 630   2015-04-04   

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

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