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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-240 A Spencer IA 6266 UNITED STATES CELLULAR - IA 630      
712-261 A Cherokee IA 6266 UNITED STATES CELLULAR - IA 630      
712-270 A Spencer IA 6266 UNITED STATES CELLULAR - IA 630      
712-320 A Spirit Lake IA 6266 UNITED STATES CELLULAR - IA 630      
712-380 A Estherville IA 6266 UNITED STATES CELLULAR - IA 630      
712-390 A Sioux Rapids IA 6266 UNITED STATES CELLULAR - IA 630      
712-395 A Orange City IA 6266 UNITED STATES CELLULAR - IA 630      
712-450 A Laurens IA 6266 UNITED STATES CELLULAR - IA 630      
712-480 A Emmetsburg IA 6266 UNITED STATES CELLULAR - IA 630      
712-539 A Le Mars IA 6266 UNITED STATES CELLULAR - IA 630      
712-730 A Storm Lake IA 6266 UNITED STATES CELLULAR - IA 630      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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