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: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-992 A Tiffin IA IWCYIA70AMD  516J TON80 COMMUNICATIONS, LLC 635      
319-992 0 Tiffin IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2023-10-15   
319-992 1 Tiffin IA CDRRIADTKMD  221F ONVOY, LLC - IA 635   2023-10-15   
319-992 2 Tiffin IA IWCYIA70AMD  516J TON80 COMMUNICATIONS, LLC 635   2022-05-26   
319-992 9 Tiffin IA   145J TERRA NOVA TELECOM INC. 635   2025-05-31   

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

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