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: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-348 A Waterloo IA IWCYIA706MD  965H FRACTEL, LLC 635      
319-348 0 Waterloo IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-02-04   
319-348 1 Waterloo IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-02-04   
319-348 2 Waterloo IA IWCYIA70DS0  423H AIRUS, INC - IA 635   2020-09-26   
319-348 3 Waterloo IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2020-05-15   
319-348 4 Waterloo IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2020-05-15   
319-348 5 Waterloo IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2022-05-16   
319-348 6 Waterloo IA IWCYIA706MD  965H FRACTEL, LLC 635   2020-02-11   
319-348 7 Waterloo IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2020-10-02   
319-348 8 Waterloo IA IWCYIA706MD  965H FRACTEL, LLC 635   2020-02-11   
319-348 9 Waterloo IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2022-06-30   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.