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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-972 5 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  722   2014-07-20   
510-972 7 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  722   2005-09-17   
510-974 A Richmond CA SNFCCASY5MD  722      
510-974 2 Richmond CA SNFCCASY5MD  722   2014-11-10   
510-974 8 Richmond CA SNFCCASY5MD  722   2014-11-11   
510-978 A Oakland: Alameda DA CA SNFCCASY5MD  722      
510-978 4 Oakland: Alameda DA CA SNFCCASY5MD  722   2003-01-10   
510-984 A Oakland: Berkeley DA CA SNFCCASY5MD  722      
510-984 1 Oakland: Berkeley DA CA SNFCCASY5MD  722   2005-03-16   
510-984 2 Oakland: Berkeley DA CA SNFCCASY5MD  722   2005-03-16   
510-984 3 Oakland: Berkeley DA CA SNFCCASY5MD  722   2007-11-01   
510-984 5 Oakland: Berkeley DA CA SNFCCASY5MD  722   2006-08-10   
510-984 6 Oakland: Berkeley DA CA SNFCCASY5MD  722   2010-08-01   
510-990 3 Oakland: Berkeley DA CA SNFCCASY5MD  722   2014-09-02   
510-991 4 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  722      
510-991 6 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  722   2005-09-17   
510-991 7 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  722   2005-09-17   
510-992 6 Oakland: Main-Piedmont DA CA SNFCCASY5MD  722   2006-09-12   
510-996 3 Fremont-Newark: Main DA CA SNFCCASY5MD  722      
510-996 4 Fremont-Newark: Main DA CA SNFCCASY5MD  722      
510-996 5 Fremont-Newark: Main DA CA SNFCCASY5MD  722      
530-210 2 Auburn: Main DA CA WSCRCAHW3MD  726   2008-05-19   
530-214 3 Truckee CA WSCRCAHW3MD  726   2013-03-18   
530-232 A Redding CA CHICCA017MD  724      
530-232 0 Redding CA CHICCA017MD  724      
530-232 1 Redding CA CHICCA017MD  724      
530-232 2 Redding CA CHICCA017MD  724      
530-232 3 Redding CA CHICCA017MD  724      
530-232 5 Redding CA CHICCA017MD  724      
530-232 6 Redding CA CHICCA017MD  724      
530-234 7 Ravendale CA   724   2017-08-24   
530-235 5 Dunsmuir CA CHICCA017MD  724   2005-08-02   
530-236 A Challenge CA CHICCA017MD  724      
530-239 A Mount Shasta CA CHICCA017MD  724      
530-239 4 Mount Shasta CA CHICCA017MD  724      
530-248 A Redding CA CHICCA017MD  724      
530-248 1 Redding CA CHICCA017MD  724      
530-248 4 Redding CA CHICCA017MD  724      
530-248 5 Redding CA CHICCA017MD  724      
530-250 A Susanville CA CHICCA017MD  724      
530-250 2 Susanville CA CHICCA017MD  724   2005-07-07   
530-250 3 Susanville CA CHICCA017MD  724   2006-04-15   
530-250 4 Susanville CA CHICCA017MD  724   2006-09-01   
530-253 7 Janesville CA   724   2017-08-23   
530-255 1 Redding CA CHICCA017MD  724      
530-269 8 Auburn: North DA CA WSCRCAHW3MD  726   2005-07-23   
530-282 1 Oroville CA CHICCA017MD  724   2008-11-25   
530-284 5 Greenville CA   724   2017-08-23   
530-285 4 Camptonville CA WSCRCAHW3MD  726   2005-07-26   
530-287 4 Alleghany CA WSCRCAHW3MD  726   2005-07-23   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 >>

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.