Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-407 A Chula Vista CA   6529 T-MOBILE USA, INC. 732   2024-11-02   
858-407 7 Chula Vista CA   6529 T-MOBILE USA, INC. 732      
858-407 8 Chula Vista CA   6529 T-MOBILE USA, INC. 732      
858-407 9 Chula Vista CA   6529 T-MOBILE USA, INC. 732      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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