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: 652

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-652 A La Jolla CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
858-652 0 La Jolla CA   6529 T-MOBILE USA, INC. 732   2007-02-12   
858-652 1 La Jolla CA   6529 T-MOBILE USA, INC. 732   2007-02-12   
858-652 2 La Jolla CA   6529 T-MOBILE USA, INC. 732   2007-09-15   
858-652 3 La Jolla CA   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 732   2006-12-06   
858-652 4 La Jolla CA   829J PAETEC ITEL, LLC 732   2006-12-19   
858-652 5 La Jolla CA   829J PAETEC ITEL, LLC 732   2006-12-19   
858-652 6 La Jolla CA   829J PAETEC ITEL, LLC 732   2006-12-19   
858-652 7 La Jolla CA   9262 UTILITY TELECOM GROUP, LLC - CA 732   2006-12-22   
858-652 8 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-11-13   
858-652 9 La Jolla CA   6529 T-MOBILE USA, INC. 732   2006-11-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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