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: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-329 A Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632      
515-329 0 Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2012-08-18   
515-329 1 Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2012-09-08   
515-329 2 Polk City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2012-12-14   
515-329 3 Polk City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2012-12-14   
515-329 4 Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2014-07-12   
515-329 5 Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-05-11   
515-329 6 Polk City IA DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-05-11   
515-329 7 Polk City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2018-04-14   
515-329 8 Polk City IA DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 632   2013-11-15   
515-329 9 Polk City IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2013-01-24   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.