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: 275

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-275 A Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-275 0 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-275 1 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632      
641-275 2 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2006-01-27   
641-275 3 Newton IA KNVLIAXC1MD  751F MCC TELEPHONY OF IOWA, LLC - IA 632   2006-06-28   
641-275 4 Newton IA   221F ONVOY, LLC - IA 632   2024-03-02   
641-275 5 Newton IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632   2007-02-23   
641-275 6 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2018-05-18   
641-275 7 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2006-09-22   
641-275 8 Newton IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2009-03-20   
641-275 9 Newton IA KNVLIAXC1MD  751F MCC TELEPHONY OF IOWA, LLC - IA 632   2010-04-15   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.