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.

NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 564

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-564 A San Diego: Mira Mesa DA CA SNDKCA88DS1  8322 MPOWER COMMUNICATIONS CORP - CA 732      
858-564 0 San Diego: Mira Mesa DA CA SNDKCA88DS1  8322 MPOWER COMMUNICATIONS CORP - CA 732      
858-564 1 San Diego: Mira Mesa DA CA SNDKCA88DS1  8322 MPOWER COMMUNICATIONS CORP - CA 732      
858-564 2 San Diego: Mira Mesa DA CA SNDKCA88DS1  8322 MPOWER COMMUNICATIONS CORP - CA 732      
858-564 3 San Diego: Mira Mesa DA CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2012-10-25   
858-564 4 San Diego: Mira Mesa DA CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2012-10-25   
858-564 5 San Diego: Mira Mesa DA CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2012-10-25   
858-564 6 San Diego: Mira Mesa DA CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2012-10-25   
858-564 7 San Diego: Mira Mesa DA CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2012-10-25   
858-564 8 San Diego: Mira Mesa DA CA SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2007-09-04   
858-564 9 San Diego: Mira Mesa DA CA SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2007-09-04   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.