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: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-612 A Garden City KS   624H ONVOY SPECTRUM, LLC 532      
620-612 0 Garden City KS   624H ONVOY SPECTRUM, LLC 532   2025-03-02   
620-612 1 Garden City KS   6529 T-MOBILE USA, INC. 532   2025-03-03   
620-612 2 Garden City KS   6529 T-MOBILE USA, INC. 532   2025-03-03   
620-612 3 Garden City KS   6529 T-MOBILE USA, INC. 532   2025-05-22   
620-612 4 Garden City KS   6529 T-MOBILE USA, INC. 532   2025-06-28   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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