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: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 359

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-359 A Iowa City IA CDRRIAIC2MD  593K MCC TELEPHONY LLC 635      
319-359 0 Iowa City IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2012-10-20   
319-359 1 Iowa City IA CDRRIAIC2MD  593K MCC TELEPHONY LLC 635   2012-09-10   
319-359 2 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2012-12-13   
319-359 3 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2012-12-13   
319-359 4 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2012-12-13   
319-359 5 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2012-12-13   
319-359 6 Iowa City IA CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2013-10-09   
319-359 7 Iowa City IA CDRRIADTNMD  985E BANDWIDTH.COM CLEC, LLC - IA 635   2014-08-30   
319-359 8 Iowa City IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2014-05-12   
319-359 9 Iowa City IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2013-08-12   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.