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: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-566 A Preston MO BASNMO06DS0  142C RYSTEC, INC 522      
417-566 0 Preston MO BASNMO06DS0  142C RYSTEC, INC 522   2004-12-30   
417-566 1 Preston MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2018-11-07   
417-566 2 Preston MO SPFDMOTLX8Y  073H TELNYX LLC 522   2020-08-07   
417-566 6 Preston MO BASNMOXAXLX  965H FRACTEL, LLC 522   2020-09-27   
417-566 7 Preston MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2014-06-06   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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