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]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-998 A Salinas CA SLNSCA01XTX  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 736      
831-999 A Santa Cruz CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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