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: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-997 A Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632   2025-01-05   
641-997 0 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632      
641-997 1 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632      
641-997 2 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632      
641-997 3 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632      
641-997 4 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632      
641-997 5 Ottumwa IA   624H ONVOY SPECTRUM, LLC 632      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.