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: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-281 A Oswego KS WCHTKSBRX5X  986E BANDWIDTH.COM CLEC, LLC - KS 532      
620-281 0 Oswego KS   205F ONVOY, LLC - KS 532   2014-02-15   
620-281 1 Oswego KS   986E BANDWIDTH.COM CLEC, LLC - KS 532   2016-07-22   
620-281 2 Oswego KS   205F ONVOY, LLC - KS 532   2020-10-19   
620-281 3 Oswego KS   205F ONVOY, LLC - KS 532   2017-05-02   
620-281 4 Oswego KS   205F ONVOY, LLC - KS 532   2021-03-05   
620-281 5 Oswego KS   2240 LEVEL 3 COMMUNICATIONS, LLC - KS 532   2021-11-08   
620-281 6 Oswego KS   205F ONVOY, LLC - KS 532   2020-10-19   
620-281 7 Oswego KS   508J CENTURYLINK COMMUNICATIONS, LLC 532   2014-03-04   
620-281 8 Oswego KS   205F ONVOY, LLC - KS 532   2019-06-10   
620-281 9 Oswego KS   205F ONVOY, LLC - KS 532   2019-06-10   

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

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