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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-566 A Richland IA DVNPIADTXZX  516J TON80 COMMUNICATIONS, LLC 634      
319-566 1 Richland IA CDRRIADTHMD  624H ONVOY SPECTRUM, LLC 634   2024-12-19   
319-566 5 Richland IA   145J TERRA NOVA TELECOM INC. 634   2025-05-31   
319-566 6 Richland IA DVNPIADTXZX  516J TON80 COMMUNICATIONS, LLC 634   2022-05-14   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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