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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-506 A Springfield MO SPFDMOMC12Z  490J DISH WIRELESS, LLC 522      
417-506 0 Springfield MO SPFDMOTLXQY  624H ONVOY SPECTRUM, LLC 522      
417-506 1 Springfield MO SPFDMOTLXQY  624H ONVOY SPECTRUM, LLC 522      
417-506 9 Springfield MO SPFDMOMC12Z  490J DISH WIRELESS, LLC 522      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.