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: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-599 A Preston KS WCHTKSBRX0X  205F ONVOY, LLC - KS 532      
620-599 0 Preston KS   4548 SOUTH CENTRAL WIRELESS DBA SC TELCOM - KS 532   2022-04-02   
620-599 1 Preston KS   624H ONVOY SPECTRUM, LLC 532   2024-04-07   
620-599 5 Preston KS   205F ONVOY, LLC - KS 532   2020-12-04   
620-599 6 Preston KS   205F ONVOY, LLC - KS 532   2020-12-04   
620-599 9 Preston KS   965H FRACTEL, LLC 532   2021-07-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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