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: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-553 A Kingman KS WCHTKSBRXFX  6267 UNITED STATES CELLULAR - KS 532      
620-553 0 Kingman KS   495J STRATUS NETWORKS 532   2021-03-31   
620-553 1 Kingman KS   6529 T-MOBILE USA, INC. 532   2022-08-03   
620-553 2 Kingman KS   6267 UNITED STATES CELLULAR - KS 532      
620-553 3 Kingman KS   7593 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 532   2017-03-08   
620-553 4 Kingman KS   318J COMCAST IP PHONE, LLC 532   2018-02-27   
620-553 5 Kingman KS   516C AT&T CORP. 532   2012-12-26   
620-553 6 Kingman KS   205F ONVOY, LLC - KS 532   2021-03-07   
620-553 7 Kingman KS   205F ONVOY, LLC - KS 532   2021-03-07   
620-553 8 Kingman KS   205F ONVOY, LLC - KS 532   2019-06-10   
620-553 9 Kingman KS   205F ONVOY, LLC - KS 532   2019-06-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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