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
925-218 0 Pleasanton CA SNFCCASY5MD  722      
925-218 1 Pleasanton CA SNFCCASY5MD  722      
925-218 2 Pleasanton CA SNFCCASY5MD  722      
925-218 3 Pleasanton CA SNFCCASY5MD  722      
925-218 4 Pleasanton CA SNFCCASY5MD  722      
925-218 6 Pleasanton CA SNFCCASY5MD  722      
925-218 8 Pleasanton CA SNFCCASY5MD  722      
925-218 9 Pleasanton CA SNFCCASY5MD  722      
925-219 A Antioch CA SNFCCASY5MD  722      
925-219 0 Antioch CA SNFCCASY5MD  722      
925-219 3 Antioch CA SNFCCASY5MD  722      
925-219 8 Antioch CA SNFCCASY5MD  722      
925-219 9 Antioch CA SNFCCASY5MD  722      
925-230 A Dublin-San Ramon CA SNFCCASY5MD  722      
925-230 0 Dublin-San Ramon CA SNFCCASY5MD  722   2011-04-30   
925-230 2 Dublin-San Ramon CA SNFCCASY5MD  722      
925-230 9 Dublin-San Ramon CA SNFCCASY5MD  722   2009-06-23   
925-231 A Martinez CA SNFCCASY5MD  722      
925-231 0 Martinez CA SNFCCASY5MD  722   2004-10-16   
925-231 1 Martinez CA SNFCCASY5MD  722   2005-03-15   
925-231 3 Martinez CA SNFCCASY5MD  722   2012-08-02   
925-231 4 Martinez CA SNFCCASY5MD  722      
925-231 8 Martinez CA SNFCCASY5MD  722   2010-09-11   
925-231 9 Martinez CA SNFCCASY5MD  722   2010-09-16   
925-232 A Pittsburg West CA SNFCCASY5MD  722      
925-232 0 Pittsburg West CA SNFCCASY5MD  722   2005-01-14   
925-232 4 Pittsburg West CA SNFCCASY5MD  722      
925-233 A Sunol CA SNFCCASY5MD  722      
925-233 0 Sunol CA SNFCCASY5MD  722   2005-01-15   
925-233 2 Sunol CA SNFCCASY5MD  722   2005-05-21   
925-233 4 Sunol CA SNFCCASY5MD  722      
925-233 8 Sunol CA SNFCCASY5MD  722   2012-08-02   
925-234 A Antioch CA SNFCCASY5MD  722      
925-234 4 Antioch CA SNFCCASY5MD  722      
925-234 9 Antioch CA SNFCCASY5MD  722   2004-12-29   
925-235 A Moraga CA SNFCCASY5MD  722      
925-235 0 Moraga CA SNFCCASY5MD  722   2005-01-07   
925-235 1 Moraga CA SNFCCASY5MD  722   2007-04-07   
925-235 4 Moraga CA SNFCCASY5MD  722      
925-235 7 Moraga CA SNFCCASY5MD  722   2004-10-25   
925-236 A Dublin-San Ramon CA SNFCCASY5MD  722      
925-236 1 Dublin-San Ramon CA SNFCCASY5MD  722      
925-236 2 Dublin-San Ramon CA SNFCCASY5MD  722      
925-236 6 Dublin-San Ramon CA SNFCCASY5MD  722      
925-236 9 Dublin-San Ramon CA SNFCCASY5MD  722      
925-237 9 Antioch CA SNFCCASY5MD  722   2004-12-29   
925-239 2 Walnut Creek CA SNFCCASY5MD  722   2013-06-21   
925-239 4 Walnut Creek CA SNFCCASY5MD  722   2014-04-27   
925-241 4 Dublin-San Ramon CA SNFCCASY5MD  722   2008-05-19   
925-241 5 Dublin-San Ramon CA SNFCCASY5MD  722   2010-02-21   
925-246 2 Concord CA SNFCCASY5MD  722   2008-10-27   
925-246 5 Concord CA SNFCCASY5MD  722   2005-12-16   
925-247 3 Moraga CA SNFCCASY5MD  722   2005-12-19   
925-248 9 Dublin-San Ramon CA SNFCCASY5MD  722   2014-04-27   
925-262 8 Walnut Creek CA SNFCCASY5MD  722   2002-12-23   
925-263 0 Danville CA SNFCCASY5MD  722      
925-263 5 Danville CA SNFCCASY5MD  722      
925-264 3 Pleasanton CA SNFCCASY5MD  722   2005-09-17   
925-264 6 Pleasanton CA SNFCCASY5MD  722      
925-264 8 Pleasanton CA SNFCCASY5MD  722      
925-265 8 Concord CA SNFCCASY5MD  722   2005-01-10   
925-266 8 Walnut Creek CA SNFCCASY5MD  722   2016-08-19   
925-270 A Concord CA SNFCCASY5MD  722      
925-270 0 Concord CA SNFCCASY5MD  722   2004-12-22   
925-270 1 Concord CA SNFCCASY5MD  722   2007-12-04   
925-270 2 Concord CA SNFCCASY5MD  722      
925-270 4 Concord CA SNFCCASY5MD  722   2003-08-25   
925-271 0 Pleasanton CA SNFCCASY5MD  722   2007-03-24   
925-271 2 Pleasanton CA SNFCCASY5MD  722   2004-12-22   
925-271 4 Pleasanton CA SNFCCASY5MD  722   2003-08-26   
925-271 5 Pleasanton CA SNFCCASY5MD  722   2005-09-05   
925-271 7 Pleasanton CA SNFCCASY5MD  722   2007-03-24   
925-271 9 Pleasanton CA SNFCCASY5MD  722   2010-02-21   
925-272 A Danville CA SNFCCASY5MD  722      
925-272 0 Danville CA SNFCCASY5MD  722   2005-02-07   
925-272 2 Danville CA SNFCCASY5MD  722   2013-09-19   
925-272 4 Danville CA SNFCCASY5MD  722      
925-273 7 Livermore CA SNFCCASY5MD  722   2008-05-21   
925-273 9 Livermore CA SNFCCASY5MD  722   2008-10-24   
925-278 6 Walnut Creek CA SNFCCASY5MD  722   2014-04-06   
925-278 7 Walnut Creek CA SNFCCASY5MD  722   2014-11-24   
925-282 8 Lafayette CA SNFCCASY5MD  722   2015-06-26   
925-291 4 Pittsburg West CA SNFCCASY5MD  722   2006-01-06   
925-297 4 Lafayette CA SNFCCASY5MD  722   2004-04-10   
925-297 6 Lafayette CA SNFCCASY5MD  722   2007-01-05   
925-298 4 Lafayette CA SNFCCASY5MD  722   2008-05-19   
925-301 A Antioch CA SNFCCASY5MD  722      
925-301 8 Antioch CA SNFCCASY5MD  722   2004-07-06   
925-301 9 Antioch CA SNFCCASY5MD  722   2004-06-09   
925-303 4 Antioch CA SNFCCASY5MD  722   2005-04-25   
925-304 A Clayton CA SNFCCASY5MD  722      
925-304 1 Clayton CA SNFCCASY5MD  722      
925-304 4 Clayton CA SNFCCASY5MD  722   2004-04-10   
925-304 6 Clayton CA SNFCCASY5MD  722   2011-10-24   
925-308 9 East Contra Costa CA SNFCCASY5MD  722   2005-11-26   
925-309 6 Danville CA SNFCCASY5MD  722   2007-04-27   
925-309 7 Danville CA SNFCCASY5MD  722   2008-05-16   
925-309 8 Danville CA SNFCCASY5MD  722   2008-05-16   
925-316 A Martinez CA SNFCCASY5MD  722      
925-326 A Concord 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.