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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-203 A Crane MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522      
417-203 0 Crane MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2008-11-29   
417-203 1 Crane MO   593K MCC TELEPHONY LLC 522   2010-06-13   
417-203 2 Crane MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2013-10-21   
417-203 3 Crane MO   073H TELNYX LLC 522   2020-07-31   
417-203 4 Crane MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522      
417-203 5 Crane MO   142C RYSTEC, INC 522   2004-12-07   
417-203 6 Crane MO   093F ONVOY, LLC - MO 522   2021-09-03   
417-203 7 Crane MO   093F ONVOY, LLC - MO 522   2021-10-09   
417-203 8 Crane MO   093F ONVOY, LLC - MO 522   2018-11-07   
417-203 9 Crane MO   093F ONVOY, LLC - MO 522   2023-07-30   

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

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