Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 SPFDMOMCX9X  993E BANDWIDTH.COM CLEC, LLC - MO 522   2008-11-29   
417-203 1 Crane MO BASNMOXAX5X  938F MCC TELEPHONY OF MISSOURI, LLC - MO 522   2010-06-13   
417-203 2 Crane MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522   2013-10-21   
417-203 3 Crane MO SPFDMOTLX8Y  073H TELNYX LLC 522   2020-07-31   
417-203 4 Crane MO SPFDMODL5MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 522      
417-203 5 Crane MO BASNMO06DS0  142C RYSTEC, INC 522   2004-12-07   
417-203 6 Crane MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2021-09-03   
417-203 7 Crane MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2021-10-09   
417-203 8 Crane MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2018-11-07   
417-203 9 Crane MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2023-07-30   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.