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 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
925-348 9 Concord CA   722   2005-12-16   
925-350 6 Antioch CA   722   2014-05-06   
925-350 8 Antioch CA   722   2012-06-02   
925-353 1 Pleasanton CA   722   2005-09-17   
925-353 3 Pleasanton CA   722   2005-09-17   
925-357 A Walnut Creek CA SNFCCASY5MD  722   2011-11-04   
925-357 3 Walnut Creek CA   722   2011-11-04   
925-357 9 Walnut Creek CA   722   2012-08-02   
925-361 3 Dublin-San Ramon CA   722   2012-12-06   
925-369 1 Martinez CA   722      
925-380 A Bishop Ranch CA SNFCCASYDS0  722      
925-380 1 Bishop Ranch CA   722      
925-380 2 Bishop Ranch CA   722   2005-04-08   
925-380 7 Bishop Ranch CA   722   2012-07-14   
925-380 9 Bishop Ranch CA   722   2014-06-08   
925-385 5 Lafayette CA   722   2006-09-02   
925-391 A Concord CA   722      
925-391 2 Concord CA   722   2014-01-16   
925-392 0 East Contra Costa CA   722   2005-11-26   
925-392 3 East Contra Costa CA   722   2004-12-22   
925-392 4 East Contra Costa CA   722   2003-01-11   
925-394 2 Bishop Ranch CA   722      
925-394 4 Bishop Ranch CA   722   2004-01-13   
925-394 7 Bishop Ranch CA   722   2004-12-28   
925-395 4 Walnut Creek CA   722   2004-07-14   
925-400 6 Pleasanton CA   722   2008-03-25   
925-401 3 Pleasanton CA   722   2012-07-22   
925-402 1 Orinda CA   722   2007-01-26   
925-402 4 Orinda CA   722   2004-04-10   
925-415 A Bishop Ranch CA   722      
925-415 0 Bishop Ranch CA   722      
925-415 1 Bishop Ranch CA   722      
925-415 2 Bishop Ranch CA   722      
925-415 5 Bishop Ranch CA   722      
925-415 6 Bishop Ranch CA   722   2006-03-25   
925-415 8 Bishop Ranch CA   722      
925-415 9 Bishop Ranch CA   722      
925-418 0 East Contra Costa CA   722   2014-10-19   
925-418 5 East Contra Costa CA   722      
925-418 7 East Contra Costa CA   722   2011-10-29   
925-418 8 East Contra Costa CA   722      
925-421 2 Concord CA   722   2012-03-31   
925-429 0 Concord CA   722      
925-429 1 Concord CA   722      
925-429 2 Concord CA   722      
925-429 3 Concord CA   722      
925-429 4 Concord CA   722      
925-429 5 Concord CA   722      
925-429 8 Concord CA   722   2010-09-17   
925-429 9 Concord CA   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 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 >>

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.