Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 280

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-280 A Thayer MO BASNMOBJ1MD  6275 UNITED STATES CELLULAR - MO 522      
417-280 0 Thayer MO   6275 UNITED STATES CELLULAR - MO 522      
417-280 1 Thayer MO   6275 UNITED STATES CELLULAR - MO 522      
417-280 2 Thayer MO   6275 UNITED STATES CELLULAR - MO 522   2015-01-01   
417-280 3 Thayer MO   093F ONVOY, LLC - MO 522   2020-07-05   
417-280 4 Thayer MO   093F ONVOY, LLC - MO 522   2020-07-05   
417-280 5 Thayer MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 522   2006-02-16   
417-280 6 Thayer MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 522   2004-05-30   
417-280 7 Thayer MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 522   2007-08-20   
417-280 8 Thayer MO   6701 AERIAL COMMUNICATIONS, INC. 522   2025-03-14   

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

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