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: 398

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
620-398 A Healy KS DGTNKSXA0MD  1827 S & T TEL. COOP. ASSN. 532      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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