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: 7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
415-688 3 San Francisco: Montrose-Evergreen DA CA SNFCCAFJDS0  722   2014-02-06   
415-696 7 San Francisco: Central DA CA SNFCCAFJDS0  722   2013-02-15   
415-763 A Ignacio CA SNFCCAFJDS0  722      
415-763 4 Ignacio CA SNFCCAFJDS0  722      
415-779 A Stinson Beach-Bolinas CA SNFCCAFJDS0  722      
415-779 9 Stinson Beach-Bolinas CA SNFCCAFJDS0  722      
415-780 A San Francisco: Central DA CA SNFCCAFJDS0  722      
415-780 2 San Francisco: Central DA CA SNFCCAFJDS0  722   2014-01-17   
415-785 A San Rafael CA SNFCCAFJDS0  722      
415-785 1 San Rafael CA SNFCCAFJDS0  722      
415-785 2 San Rafael CA SNFCCAFJDS0  722      
415-801 1 San Francisco: Central DA CA SNFCCAFJDS0  722   2014-05-28   
415-801 7 San Francisco: Central DA CA SNFCCAFJDS0  722   2014-05-28   
415-848 A San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 0 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 1 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 2 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 3 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 4 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 5 San Francisco: Central DA CA SNFCCAFJDS0  722      
415-848 6 San Francisco: Central DA CA SNFCCAFJDS0  722   2000-10-06   
415-874 3 San Francisco: Central DA CA SNFCCAFJDS0  722   2001-01-29   
415-874 4 San Francisco: Central DA CA SNFCCAFJDS0  722   2001-01-29   
415-874 6 San Francisco: Central DA CA SNFCCAFJDS0  722   2005-04-01   
415-887 A Sausalito CA SNFCCAFJDS0  722      
415-887 3 Sausalito CA SNFCCAFJDS0  722      
415-887 4 Sausalito CA SNFCCAFJDS0  722      
415-888 6 Mill Valley CA SNFCCAFJDS0  722   2010-05-10   
415-889 A Belvedere CA SNFCCAFJDS0  722      
415-889 4 Belvedere CA SNFCCAFJDS0  722      
510-217 A Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 0 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 1 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 2 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 3 Oakland: Alameda DA CA OKLDCA03DS6  722      
510-217 4 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 5 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 6 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 7 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-217 9 Oakland: Alameda DA CA SNFCCAFJDS0  722      
510-244 5 Hayward CA OKLDCA03DS5  722   2011-09-27   
510-255 8 Richmond CA SNRSCA01KMD  722   2012-09-14   
510-257 A Fremont-Newark: Oliver DA CA SNJSCA02DS4  722      
510-257 0 Fremont-Newark: Oliver DA CA SNJSCA02DS4  722      
510-275 2 El Sobrante-Pinole CA SNRSCA01KMD  722   2002-10-27   
510-313 A Hercules-Rodeo CA SNRSCA01KMD  722      
510-313 9 Hercules-Rodeo CA SNRSCA01KMD  722      
510-319 5 Fremont-Newark: Oliver DA CA OKLDCA03DS5  722   2016-03-25   
510-343 8 Oakland: Trinidad DA CA SNRSCA01KMD  722   2001-09-26   
510-350 A Oakland: Main-Piedmont DA CA SNRSCA01KMD  722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.