Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   221F ONVOY, LLC - IA 635   2021-02-04   
319-348 1 Waterloo IA   221F ONVOY, LLC - IA 635   2021-02-04   
319-348 2 Waterloo IA   423H AIRUS, INC - IA 635   2020-09-26   
319-348 3 Waterloo IA   221F ONVOY, LLC - IA 635   2020-05-15   
319-348 4 Waterloo IA   221F ONVOY, LLC - IA 635   2020-05-15   
319-348 5 Waterloo IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2022-05-16   
319-348 6 Waterloo IA   965H FRACTEL, LLC 635   2020-02-11   
319-348 7 Waterloo IA   221F ONVOY, LLC - IA 635   2020-10-02   
319-348 8 Waterloo IA   965H FRACTEL, LLC 635   2020-02-11   
319-348 9 Waterloo IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2022-06-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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