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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-579 A Galena MO GALNMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 522      
417-579 0 Galena MO SPFDMOTLX8Y  073H TELNYX LLC 522   2022-09-16   
417-579 1 Galena MO   6275 UNITED STATES CELLULAR - MO 522   2026-04-05   
417-579 8 Galena MO   6275 UNITED STATES CELLULAR - MO 522   2026-04-05   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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