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: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-777 A Santa Cruz CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
831-777 0 Santa Cruz CA   321J HD CARRIER LLC 722   2016-06-28   
831-777 1 Santa Cruz CA   321J HD CARRIER LLC 722   2016-06-28   
831-777 2 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-12-28   
831-777 3 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-12-28   
831-777 4 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-12-28   
831-777 5 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-12-28   
831-777 6 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-12-04   
831-777 7 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-10-15   
831-777 8 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-10-15   
831-777 9 Santa Cruz CA   649C ONVOY, LLC - CA 722   2015-10-15   

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

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