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: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-315 A Marble Rock (OmniTel) IA MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 1 Marble Rock (OmniTel) IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-315 2 Marble Rock (OmniTel) IA MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 3 Marble Rock (OmniTel) IA MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 5 Marble Rock (OmniTel) IA GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-08-30   
641-315 8 Marble Rock (OmniTel) IA MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.