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.

La Jolla, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
858-999 0 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732      
858-999 1 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
858-999 2   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 732      
858-999 3 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-999 4 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
858-999 5 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-999 6 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
858-999 7 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
858-999 8 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-999 9 SNDGCAJWDS0  649C ONVOY, LLC - CA 732      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.