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: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-397 A Springfield MO SPFDMOMCXWX  732J NUSO, LLC 522      
417-397 0 Springfield MO   515J IP HORIZON LLC 522   2023-12-07   
417-397 1 Springfield MO   732J NUSO, LLC 522   2023-08-11   
417-397 2 Springfield MO   515J IP HORIZON LLC 522   2023-12-07   
417-397 3 Springfield MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2024-06-16   
417-397 4 Springfield MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2024-06-16   
417-397 5 Springfield MO   732J NUSO, LLC 522   2024-10-24   
417-397 6 Springfield MO   732J NUSO, LLC 522   2024-10-24   
417-397 7 Springfield MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2024-03-08   
417-397 8 Springfield MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2024-08-09   
417-397 9 Springfield MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2024-10-05   

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

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