Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-777 A Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 0 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 1 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 2 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 3 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 4 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 5 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 6 Oakland: Trinidad DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-01-03   
510-777 7 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 8 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 9 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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