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: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-712 A Walker IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2024-08-06   
319-712 0 Walker IA   444G AUREON COMMUNICATIONS, LLC 635   2024-10-14   
319-712 7 Walker IA   221F ONVOY, LLC - IA 635   2024-08-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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