Local Calling Guide

Area code/prefix search

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Tiffin, OH

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
567-938 5 TOLDOH21XKY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 326   2014-05-04   
567-938 6 TOLDOH21XZY  516C AT&T CORP. 326   2012-01-27   
567-938 7 TOLDOH21XWZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 326   2012-02-27   
567-938 8 BSCMOHXADS1  849E BASCOM MUTUAL TELEPHONE COMPANY - OH 326   2010-09-26   
567-938 9 TOLDOHOZCMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 326   2010-10-29   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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