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: SPNCIAAC2MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-922 1 Emmetsburg IA 6266 UNITED STATES CELLULAR - IA 630   2025-02-20   
712-922 3 Emmetsburg IA 6266 UNITED STATES CELLULAR - IA 630   2025-02-20   
712-922 4 Emmetsburg IA 6266 UNITED STATES CELLULAR - IA 630   2025-02-20   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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