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: 289

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-289 A Billings MO SPFDMOTLXDY  829J PAETEC ITEL, LLC 522      
417-289 0 Billings MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2015-02-27   
417-289 1 Billings MO   593K MCC TELEPHONY LLC 522   2010-06-13   
417-289 2 Billings MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2016-07-16   
417-289 3 Billings MO   829J PAETEC ITEL, LLC 522      
417-289 5 Billings MO   829J PAETEC ITEL, LLC 522   2008-12-03   
417-289 6 Billings MO   093F ONVOY, LLC - MO 522   2017-05-02   
417-289 7 Billings MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2014-06-06   
417-289 8 Billings MO   993E BANDWIDTH.COM CLEC, LLC - MO 522   2017-06-12   
417-289 9 Billings MO   624H ONVOY SPECTRUM, LLC 522   2024-03-28   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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