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: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-303 A San Ardo CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-303 0 San Ardo CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-303 1 San Ardo CA SLNSCA01XAY  073H TELNYX LLC 736   2021-02-26   
831-303 2 San Ardo CA MTRYCAPMDS0  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 736      
831-303 3 San Ardo CA   145J TERRA NOVA TELECOM INC. 736   2022-10-31   
831-303 4 San Ardo CA SLNSCA01XOX  776C CHARTER FIBERLINK CA-CCO, LLC - CA 736   2024-06-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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