Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: OKLDCA12DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-425 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-425 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-425 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-430 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-544 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-562 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 1 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 2 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 5 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 8 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-567 9 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-568 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-569 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-632 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-633 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-635 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-636 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-638 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-639 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 A Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 0 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 4 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 6 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 7 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 8 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      
510-729 9 Oakland: Trinidad DA CA 9740 PACIFIC BELL 722      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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