Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 225

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-225 A Salinas CA SLNSCA01X7Y  508J CENTURYLINK COMMUNICATIONS, LLC 736      
831-225 0 Salinas CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736   2016-01-04   
831-225 1 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-03-14   
831-225 2 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-03-14   
831-225 3 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-03-14   
831-225 4 Salinas CA   6010 NEW CINGULAR WIRELESS PCS, LLC 736   2016-04-15   
831-225 5 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-08-10   
831-225 6 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-08-10   
831-225 7 Salinas CA   508J CENTURYLINK COMMUNICATIONS, LLC 736   2015-09-30   
831-225 8 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-05-18   
831-225 9 Salinas CA   6529 T-MOBILE USA, INC. 736   2016-05-18   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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