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.
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NPA: 417 [Rate centres in NPA 417] [Dial plan for NPA 417]

NXX: 740

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-740 A Branson MO BASNMOXAXRX  622J SKYE TELECOM LLC DBA SKYETEL 522      
417-740 0 Branson MO BASNMOXAXRX  622J SKYE TELECOM LLC DBA SKYETEL 522   2021-11-05   
417-740 1 Branson MO SPFDMOTLX8Y  073H TELNYX LLC 522   2023-06-18   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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