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: 979

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-979 A Treece KS PCHROKMARL1  9533 SOUTHWESTERN BELL 538      
620-979 0 Treece KS   9533 SOUTHWESTERN BELL 538      
620-979 1 Treece KS   205F ONVOY, LLC - KS 538   2019-01-13   
620-979 7 Treece KS   205F ONVOY, LLC - KS 538   2018-03-11   
620-979 8 Treece KS   205F ONVOY, LLC - KS 538   2019-01-13   
620-979 9 Treece KS   018H PEERLESS NETWORK OF KANSAS, LLC - KS 538   2015-01-10   

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

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