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: 361 [Rate centres in NPA 361] [Dial plan for NPA 361]

NXX: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
361-279 A San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 0 San Diego TX CRCHTXTUX9Y  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 564   2009-01-19   
361-279 1 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 2 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 3 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 4 San Diego TX CRCHTXTUXCY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 564   2005-11-11   
361-279 5 San Diego TX CRCHTXTUXCY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 564   2011-01-14   
361-279 6 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 7 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 8 San Diego TX SNDGTXSDRS0  9533 SOUTHWESTERN BELL 564      
361-279 9 San Diego TX CRCHTXTUXJY  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 564   2009-05-15   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.