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: 620 [Rate centres in NPA 620] [Dial plan for NPA 620]

NXX: 676

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-676 A Liberal KS WCHTKSBRXPZ  624H ONVOY SPECTRUM, LLC 532   2025-03-02   
620-676 0 Liberal KS WCHTKSBRXPZ  624H ONVOY SPECTRUM, LLC 532   2025-03-02   
620-676 1 Liberal KS WCHTKSTPDS0  018H PEERLESS NETWORK OF KANSAS, LLC - KS 532   2025-06-09   
620-676 8 Liberal KS   205F ONVOY, LLC - KS 532   2026-10-08   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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