Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 620 [Rate centres in NPA 620] [Dial plan for NPA 620]

NXX: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-556 A Liberal KS WCHTKSBRDMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 532      
620-556 0 Liberal KS   515J IP HORIZON LLC 532   2022-04-30   
620-556 1 Liberal KS   939H COMMIO, LLC 532   2022-08-11   
620-556 2 Liberal KS   205F ONVOY, LLC - KS 532   2022-09-25   
620-556 3 Liberal KS   205F ONVOY, LLC - KS 532   2023-08-11   
620-556 4 Liberal KS   014E IDEATEK TELCOM, LLC - KS 532   2022-01-22   
620-556 5 Liberal KS   205F ONVOY, LLC - KS 532   2023-08-11   
620-556 6 Liberal KS   986E BANDWIDTH.COM CLEC, LLC - KS 532   2021-12-18   
620-556 7 Liberal KS   986E BANDWIDTH.COM CLEC, LLC - KS 532   2021-12-18   
620-556 8 Liberal KS   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 532   2021-09-10   
620-556 9 Liberal KS   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 532   2021-09-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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