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.

NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-437 A Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 0 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 1 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 2 Centerville IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2022-09-07   
641-437 3 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 4 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 5 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 6 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 7 Centerville IA CNVLIAXORS4  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-437 8 Centerville IA DESMIADTX5X  8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 632   2020-02-16   
641-437 9 Centerville IA CNVLIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.