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: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-552 A Charles City IA RUDDIA01DS2  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-552 0 Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-552 1 Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-552 2 Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-552 3 Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-552 4 Charles City IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632      
641-552 5 Charles City IA RUDDIA01DS2  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-552 6 Charles City IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632      
641-552 7 Charles City IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-552 8 Charles City IA RUDDIA01DS2  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-552 9 Charles City IA RUDDIA01DS2  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.