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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-592 A Richfield KS ULYSKSXADS0  1817 PIONEER TEL. ASSN., INC. 532      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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