Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Guernsey, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-309 A CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635      
319-309 7 CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2023-03-30   
319-685 A VCTRIAXODS0  1139 COOPERATIVE TEL. CO. 635      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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