Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 208 [Rate centres in NPA 208] [Dial plan for NPA 208]

NXX: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-538 A Idaho Falls ID RIRIIDMARS1  9636 QWEST CORPORATION 652      
208-538 0 Idaho Falls ID   7558 LEVEL 3 COMMUNICATIONS, LLC - ID 652   2008-05-08   
208-538 1 Idaho Falls ID   689F ONVOY, LLC - ID 652   2012-12-16   
208-538 2 Idaho Falls ID   829J PAETEC ITEL, LLC 652   2008-05-01   
208-538 3 Idaho Falls ID   192F BANDWIDTH.COM CLEC, LLC - ID 652   2010-07-03   
208-538 4 Idaho Falls ID   192F BANDWIDTH.COM CLEC, LLC - ID 652   2010-10-04   
208-538 5 Idaho Falls ID   9636 QWEST CORPORATION 652      
208-538 6 Idaho Falls ID   9636 QWEST CORPORATION 652      
208-538 7 Idaho Falls ID   9636 QWEST CORPORATION 652      
208-538 8 Idaho Falls ID   495J STRATUS NETWORKS 652   2021-04-11   
208-538 9 Idaho Falls ID   192F BANDWIDTH.COM CLEC, LLC - ID 652   2012-03-26   

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

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