Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 805 [Rate centres in NPA 805] [Dial plan for NPA 805]

NXX: 903

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
805-903 A San Luis Obispo CA SNLOCA01XOY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-903 1 San Luis Obispo CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740   2006-05-19   
805-903 2 San Luis Obispo CA   6010 NEW CINGULAR WIRELESS PCS, LLC 740   2008-09-15   
805-903 3 San Luis Obispo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2009-02-24   

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

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