Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX: 620

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-620 A San Francisco: Central DA CA SNFCCA21XCZ  6967 33 WIRELESS INC. 722      

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

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