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: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-356 A Salinas CA MTRYCAPM6MD  965H FRACTEL, LLC 736      
831-356 0 Salinas CA   318J COMCAST IP PHONE, LLC 736   2020-09-12   
831-356 1 Salinas CA   6529 T-MOBILE USA, INC. 736   2021-02-05   
831-356 2 Salinas CA   6529 T-MOBILE USA, INC. 736   2021-02-05   
831-356 3 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-07-22   
831-356 4 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-07-22   
831-356 5 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-06-05   
831-356 6 Salinas CA   6529 T-MOBILE USA, INC. 736   2020-06-05   
831-356 7 Salinas CA   965H FRACTEL, LLC 736   2020-01-28   
831-356 8 Salinas CA   6010 NEW CINGULAR WIRELESS PCS, LLC 736   2020-07-27   
831-356 9 Salinas CA   965H FRACTEL, LLC 736   2020-01-28   

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

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