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: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
417-780 A Ava MO BASNMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 522   2025-06-16   
417-780 0 Ava MO   145J TERRA NOVA TELECOM INC. 522   2025-07-14   
417-780 1 Ava MO SPFDMOPYAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 522   2025-09-15   
417-780 2 Ava MO   093F ONVOY, LLC - MO 522   2026-07-24   
417-780 8 Ava MO BASNMOXAXJX  093F ONVOY, LLC - MO 522   2026-04-04   
417-780 9 Ava MO BASNMOXAXCX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 522   2025-06-16   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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