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: 605

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-605 A Springfield MO SPFDMOTLXSY  515J IP HORIZON LLC 522      
417-605 0 Springfield MO   624H ONVOY SPECTRUM, LLC 522   2022-09-10   
417-605 1 Springfield MO   515J IP HORIZON LLC 522   2021-01-23   
417-605 2 Springfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2021-10-08   
417-605 3 Springfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2022-02-25   
417-605 5 Springfield MO   093F ONVOY, LLC - MO 522   2022-05-26   
417-605 6 Springfield MO   093F ONVOY, LLC - MO 522   2023-11-12   
417-605 7 Springfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2023-10-14   
417-605 8 Springfield MO   624H ONVOY SPECTRUM, LLC 522   2022-09-10   
417-605 9 Springfield MO   624H ONVOY SPECTRUM, LLC 522   2022-09-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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