Local Calling Guide

Area code/prefix search

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NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX: 627

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-627 A San Ardo CA SNARCA11RS1  9740 PACIFIC BELL 736      
831-627 1 San Ardo CA SNARCA11RS1  9740 PACIFIC BELL 736      
831-627 2 San Ardo CA SNARCA11RS1  9740 PACIFIC BELL 736      
831-627 3 San Ardo CA SNARCA11RS1  9740 PACIFIC BELL 736      
831-627 4 San Ardo CA SLNSCA01X5Y  516C AT&T CORP. 736   2011-09-26   
831-627 5 San Ardo CA SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736   2006-06-14   
831-627 6 San Ardo CA SLNSCA01X9Y  649C ONVOY, LLC - CA 736   2017-04-27   
831-627 7 San Ardo CA SLNSCA01X7Y  508J CENTURYLINK COMMUNICATIONS, LLC 736   2015-11-09   
831-627 8 San Ardo CA SLNSCA01XQY  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 736   2016-03-20   

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

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