Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
760-412 3 Brawley CA   732   2012-01-29   
760-422 A Palm Springs CA PLSPCAXG06Z  973      
760-422 1 Palm Springs CA   973      
760-422 2 Palm Springs CA   973      
760-423 A Palm Desert CA PLSPCAXG06Z  973      
760-423 0 Palm Desert CA   973      
760-423 1 Palm Desert CA   973      
760-423 4 Palm Desert CA   973      
760-423 5 Palm Desert CA   973      
760-424 A Palm Springs CA PLSPCAXG06Z  973      
760-424 3 Palm Springs CA   973      
760-424 7 Palm Springs CA   973   2019-07-18   
760-444 8 Oceanside: Carlsbad DA CA   732   2006-08-21   
760-448 A Oceanside: Carlsbad DA CA SNDKCA882MD  732      
760-448 1 Oceanside: Carlsbad DA CA   732      
760-448 2 Oceanside: Carlsbad DA CA   732      
760-448 3 Oceanside: Carlsbad DA CA   732      
760-448 4 Oceanside: Carlsbad DA CA   732      
760-448 8 Oceanside: Carlsbad DA CA   732      
760-448 9 Oceanside: Carlsbad DA CA   732      
760-451 4 Fallbrook CA   732   2003-07-20   
760-463 8 Ridgecrest CA   730   2013-07-08   
760-466 A Escondido CA SNDKCA882MD  732      
760-466 0 Escondido CA   732      
760-466 1 Escondido CA   732      
760-466 2 Escondido CA   732      
760-466 3 Escondido CA   732      
760-466 8 Escondido CA   732      
760-466 9 Escondido CA   732      
760-477 A Vista CA SNDKCA882MD  732      
760-477 1 Vista CA   732      
760-477 2 Vista CA   732      
760-477 8 Vista CA   732      
760-477 9 Vista CA   732      
760-493 5 Victorville: Victorville DA CA   730   2012-12-07   
760-507 3 Palm Springs CA   973   2014-03-20   
760-515 8 Victorville: Apple Valley DA CA   730   2011-05-13   
760-516 A Encinitas CA SNDKCA882MD  732      
760-516 2 Encinitas CA   732      
760-517 A Oceanside: Carlsbad DA CA SNDKCA882MD  732      
760-517 0 Oceanside: Carlsbad DA CA   732      
760-517 2 Oceanside: Carlsbad DA CA   732      
760-517 3 Oceanside: Carlsbad DA CA   732      
760-517 4 Oceanside: Carlsbad DA CA   732      
760-517 5 Oceanside: Carlsbad DA CA   732      
760-517 9 Oceanside: Carlsbad DA CA   732      
760-523 A Victorville: Adelanto DA CA IRVNCASM1MD  730      
760-528 4 Holtville CA   732   2017-10-14   
760-541 4 Indio CA   973   2007-06-16   
760-541 5 Indio CA   973   2007-06-16   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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