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: 474

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-474 A Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 0 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 1 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 2 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 3 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 4 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 5 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 6 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 7 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      
641-474 9 Green Mountain IA UNINIAXODS1  1297 HEART OF IOWA COMMUNICATIONS COOPERATIVE - IA 632      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.