Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

NXX: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-329 A Sausalito CA   6529 T-MOBILE USA, INC. 722   2026-01-03   
628-329 9 Sausalito CA   6529 T-MOBILE USA, INC. 722   2026-01-03   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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