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: 492

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-492 A Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2024-08-09   
319-492 0 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2024-08-09   
319-492 1 Iowa City IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2024-08-09   
319-492 2 Iowa City IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2025-05-25   
319-492 3 Iowa City IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2025-08-25   
319-492 8 Iowa City IA CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2024-08-10   

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

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