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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-428 A Hugoton KS ULYSKSXADS0  1817 PIONEER TEL. ASSN., INC. 532      
620-428 0 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 1 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 2 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 3 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 4 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 5 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 6 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 7 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 8 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      
620-428 9 Hugoton KS   1817 PIONEER TEL. ASSN., INC. 532      

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

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