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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-551 A Ozark MO BASNMO06DS0  142C RYSTEC, INC 522      
417-551 0 Ozark MO BASNMO06DS0  142C RYSTEC, INC 522   2004-12-30   
417-551 1 Ozark MO SPFDMOMCXIX  6701 AERIAL COMMUNICATIONS, INC. 522   2007-04-27   
417-551 2 Ozark MO SPFDMOMCXIX  6701 AERIAL COMMUNICATIONS, INC. 522   2010-01-08   
417-551 3 Ozark MO SPFDMOMCXIX  6701 AERIAL COMMUNICATIONS, INC. 522   2008-01-28   
417-551 4 Ozark MO   612K CSC VOICE, LLC 522   2006-09-11   
417-551 5 Ozark MO SPFDMOMCXIX  5562 METROPCS, INC. 522   2011-11-02   
417-551 6 Ozark MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2018-04-28   
417-551 7 Ozark MO   145J TERRA NOVA TELECOM INC. 522   2025-07-19   
417-551 8 Ozark MO BASNMOXAX5X  593K MCC TELEPHONY LLC 522   2010-06-13   
417-551 9 Ozark MO SPFDMOMCX9X  993E BANDWIDTH.COM CLEC, LLC - MO 522   2008-11-29   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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