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: 530

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-530 A Clearwater KS   892C TWIN VALLEY COMMUNICATIONS, INC. - KS 532      
620-530 0 Clearwater KS   892C TWIN VALLEY COMMUNICATIONS, INC. - KS 532   2005-11-11   
620-530 5 Clearwater KS WCHTKSTP00Z  490J BOOST SUBSCRIBERCO L.L.C. 532   2024-01-11   
620-530 8 Clearwater KS   6532 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 532   2026-09-01   

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

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