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: 594

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-594 A Oakland: Main-Piedmont DA CA OKLDCA11DS0  9740 PACIFIC BELL 722      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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