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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-558 A Springfield MO   700J WAVENATION, LLC 522   2026-01-30   
417-558 0 Springfield MO   700J WAVENATION, LLC 522   2026-01-30   
417-558 1 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 2 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 3 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 4 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 5 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 6 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 7 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 8 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   
417-558 9 Springfield MO   6275 UNITED STATES CELLULAR - MO 522   2026-03-17   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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