Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 385 [Rate centres in NPA 385] [Dial plan for NPA 385]

NXX: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
385-640 A Salt Lake City UT   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 660   2026-06-23   
385-640 7 Salt Lake City UT   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 660   2026-06-23   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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