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: 8826 LEVEL 3 COMMUNICATIONS, 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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
628-220 3 San Francisco: Central DA CA SNFCCASY5MD  722   2016-04-04   
628-220 4 San Francisco: Central DA CA SNFCCASY5MD  722   2016-04-04   
628-221 2 San Francisco: Central DA CA SNFCCASY5MD  722   2015-09-07   
628-221 5 San Francisco: Central DA CA SNFCCASY5MD  722   2015-09-28   
628-221 6 San Francisco: Central DA CA SNFCCASY5MD  722   2015-09-28   
628-227 8 San Francisco: Montrose-Evergreen DA CA SNFCCASY5MD  722   2016-01-03   
628-235 A San Francisco: Central DA CA SNFCCASY5MD  722      
628-235 2 San Francisco: Central DA CA SNFCCASY5MD  722   2016-01-22   
628-244 5 Belvedere CA SNFCCASY5MD  722   2018-09-22   
628-246 9 San Francisco: Central DA CA SNFCCASY5MD  722   2017-07-16   
628-260 3 San Francisco: Central DA CA SNFCCASY5MD  722   2019-07-20   
628-260 5 San Francisco: Central DA CA SNFCCASY5MD  722   2020-05-05   
628-260 6 San Francisco: Central DA CA SNFCCASY5MD  722   2019-05-25   
628-260 7 San Francisco: Central DA CA SNFCCASY5MD  722   2020-06-16   
628-260 8 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-11   
628-263 2 San Francisco: Central DA CA SNFCCASY5MD  722   2018-08-27   
628-263 3 San Francisco: Central DA CA SNFCCASY5MD  722   2018-08-27   
628-268 A San Francisco: Central DA CA SNFCCASY5MD  722      
628-268 1 San Francisco: Central DA CA SNFCCASY5MD  722   2020-01-19   
628-268 2 San Francisco: Central DA CA SNFCCASY5MD  722   2019-10-17   
628-268 3 San Francisco: Central DA CA SNFCCASY5MD  722   2019-10-17   
628-269 2 San Rafael CA SNFCCASY5MD  722   2019-11-30   
628-273 A San Francisco: Central DA CA SNFCCASY5MD  722      
628-273 0 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 1 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 2 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 3 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 4 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 5 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 6 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 7 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 8 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-273 9 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 A San Francisco: Central DA CA SNFCCASY5MD  722      
628-274 0 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 1 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 2 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 3 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 4 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 5 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 6 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 7 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 8 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-274 9 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 A San Francisco: Central DA CA SNFCCASY5MD  722      
628-275 0 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 1 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 2 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 3 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 4 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 5 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 6 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 7 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 8 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-275 9 San Francisco: Central DA CA SNFCCASY5MD  722   2018-05-25   
628-336 2 San Rafael CA SNFCCASY5MD  722   2019-05-15   
628-336 3 San Rafael CA SNFCCASY5MD  722   2019-07-13   
628-561 4 Stinson Beach-Bolinas CA SNFCCASY5MD  722   2019-02-22   
628-629 6 San Francisco: Central DA CA SNFCCASY5MD  722   2019-03-16   
628-629 7 San Francisco: Central DA CA SNFCCASY5MD  722   2019-04-28   
628-867 0 San Francisco: Central DA CA SNFCCASY5MD  722   2017-07-16   
628-867 1 San Francisco: Central DA CA SNFCCASY5MD  722   2017-07-03   
628-867 2 San Francisco: Central DA CA SNFCCASY5MD  722   2017-07-03   
628-867 8 San Francisco: Central DA CA SNFCCASY5MD  722   2018-07-18   
628-899 3 San Francisco: Montrose-Evergreen DA CA SNFCCASY5MD  722   2016-07-31   
650-204 3 Millbrae CA SNFCCASY5MD  722   2006-03-10   
650-204 4 Millbrae CA SNFCCASY5MD  722   2005-10-07   
650-204 8 Millbrae CA SNFCCASY5MD  722   2010-02-21   
650-204 9 Millbrae CA SNFCCASY5MD  722   2005-08-18   
650-206 2 Woodside CA SNFCCASY5MD  722   2005-12-12   
650-206 5 Woodside CA SNFCCASY5MD  722   2006-01-06   
650-209 4 Los Altos CA SNFCCASY5MD  722   2005-11-26   
650-209 6 Los Altos CA SNFCCASY5MD  722   2007-12-04   
650-209 8 Los Altos CA SNFCCASY5MD  722   2008-11-25   
650-215 5 Mountain View CA SNFCCASY5MD  722      
650-215 6 Mountain View CA SNFCCASY5MD  722      
650-215 7 Mountain View CA SNFCCASY5MD  722   2005-03-14   
650-226 8 San Carlos-Belmont CA SNFCCASY5MD  722   2005-11-13   
650-227 3 San Mateo CA SNFCCASY5MD  722   2008-01-25   
650-227 4 San Mateo CA SNFCCASY5MD  722   2008-01-25   
650-231 4 Millbrae CA SNFCCASY5MD  722   2009-06-16   
650-238 6 South San Francisco CA SNFCCASY5MD  722   2014-06-26   
650-239 1 Millbrae CA SNFCCASY5MD  722      
650-241 A Redwood City CA SNFCCASY5MD  722      
650-241 0 Redwood City CA SNFCCASY5MD  722   2005-07-18   
650-241 1 Redwood City CA SNFCCASY5MD  722   2005-07-18   
650-241 2 Redwood City CA SNFCCASY5MD  722   2011-05-28   
650-241 3 Redwood City CA SNFCCASY5MD  722   2005-07-18   
650-241 4 Redwood City CA SNFCCASY5MD  722      
650-242 A San Mateo CA SNFCCASY5MD  722      
650-242 0 San Mateo CA SNFCCASY5MD  722   2005-06-23   
650-242 3 San Mateo CA SNFCCASY5MD  722   2005-03-15   
650-242 4 San Mateo CA SNFCCASY5MD  722      
650-242 8 San Mateo CA SNFCCASY5MD  722   2005-03-22   
650-242 9 San Mateo CA SNFCCASY5MD  722   2005-03-22   
650-248 2 Palo Alto CA SNFCCASY5MD  722   2007-06-22   
650-249 4 Redwood City CA SNFCCASY5MD  722   2003-01-09   
650-249 6 Redwood City CA SNFCCASY5MD  722   2007-09-25   
650-251 4 Palo Alto CA SNFCCASY5MD  722   2008-02-01   
650-257 8 Redwood City CA SNFCCASY5MD  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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.