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.

Marble Rock, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-315 A MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 1 BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632      
641-315 2 MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 3 MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-315 5 GRNLIAXCPMD  221F ONVOY, LLC - IA 632      
641-315 8 MRRKIA01RS0  3620 OMNITEL COMMUNICATIONS, INC. - IA 632      
641-397 A MRRKIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-397 1 MRRKIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-397 2 MRRKIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-397 3   624H ONVOY SPECTRUM, LLC 632      
641-397 4 MRRKIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 632      
641-397 6 GRNLIAXCPMD  221F ONVOY, LLC - IA 632      
641-397 7 DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      
641-397 8 DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-397 9 MRRKIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 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.