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: 649C ONVOY, 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
925-503 0 Antioch CA SNFCCAMKDS3  722   2017-07-08   
925-504 2 Pittsburg West CA SNFCCAMKDS3  722   2023-09-11   
925-504 4 Pittsburg West CA SNFCCAMKDS3  722   2023-02-04   
925-505 0 Livermore CA SNFCCAMKDS3  722   2023-09-11   
925-505 4 Livermore CA SNFCCAMKDS3  722   2022-12-16   
925-506 2 Antioch CA SNFCCAMKDS3  722   2023-10-11   
925-507 2 Concord CA SNFCCAMKDS3  722   2023-02-20   
925-507 3 Concord CA SNFCCAMKDS3  722   2023-02-20   
925-507 4 Concord CA SNFCCAMKDS3  722   2023-02-20   
925-508 A East Contra Costa CA SNFCCAMKDS3  722      
925-508 0 East Contra Costa CA SNFCCAMKDS3  722   2024-02-22   
925-508 1 East Contra Costa CA SNFCCAMKDS3  722   2024-02-22   
925-508 2 East Contra Costa CA SNFCCAMKDS3  722   2024-02-22   
925-508 3 East Contra Costa CA SNFCCAMKDS3  722   2023-06-04   
925-512 A Walnut Creek CA SNFCCAMKDS3  722      
925-512 0 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 1 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 2 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 3 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 4 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 5 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 6 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 7 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 8 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-512 9 Walnut Creek CA SNFCCAMKDS3  722   2023-11-01   
925-515 A Concord CA SNFCCAMKDS3  722   2024-01-21   
925-515 2 Concord CA SNFCCAMKDS3  722   2021-01-02   
925-515 3 Concord CA SNFCCAMKDS3  722   2021-01-02   
925-515 4 Concord CA SNFCCAMKDS3  722   2021-01-02   
925-515 5 Concord CA SNFCCAMKDS3  722   2021-01-02   
925-517 A Pittsburg West CA SNFCCAMKDS3  722      
925-517 0 Pittsburg West CA SNFCCAMKDS3  722   2012-12-31   
925-517 7 Pittsburg West CA SNFCCAMKDS3  722   2016-03-18   
925-517 8 Pittsburg West CA SNFCCAMKDS3  722   2016-03-18   
925-523 0 Pleasanton CA SNFCCAMKDS3  722   2012-12-30   
925-523 4 Pleasanton CA SNFCCAMKDS3  722   2012-12-30   
925-523 6 Pleasanton CA SNFCCAMKDS3  722   2012-12-30   
925-524 7 Clayton CA SNFCCAMKDS3  722   2009-12-18   
925-526 7 Pittsburg CA SNFCCAMKDS3  722   2013-03-16   
925-528 0 Orinda CA SNFCCAMKDS3  722   2014-09-26   
925-528 2 Orinda CA SNFCCAMKDS3  722   2014-09-26   
925-528 3 Orinda CA SNFCCAMKDS3  722   2023-10-29   
925-528 4 Orinda CA SNFCCAMKDS3  722   2019-03-11   
925-528 5 Orinda CA SNFCCAMKDS3  722   2019-03-11   
925-529 A Antioch CA SNFCCAMKDS3  722      
925-529 3 Antioch CA SNFCCAMKDS3  722   2011-01-20   
925-529 9 Antioch CA SNFCCAMKDS3  722   2011-01-20   
925-532 1 Walnut Creek CA SNFCCAMKDS3  722   2017-06-12   
925-533 0 Livermore CA SNFCCAMKDS3  722   2021-07-30   
925-533 1 Livermore CA SNFCCAMKDS3  722   2021-07-30   
925-533 2 Livermore CA SNFCCAMKDS3  722   2021-07-30   
925-533 4 Livermore CA SNFCCAMKDS3  722   2021-07-30   
925-536 1 Concord CA SNFCCAMKDS3  722   2017-06-18   
925-536 4 Concord CA SNFCCAMKDS3  722   2018-01-20   
925-546 2 Walnut Creek CA SNFCCAMKDS3  722   2023-01-02   
925-557 7 Dublin-San Ramon CA SNFCCAMKDS3  722   2009-12-18   
925-558 4 Dublin-San Ramon CA SNFCCAMKDS3  722   2005-06-05   
925-558 8 Dublin-San Ramon CA SNFCCAMKDS3  722   2012-12-31   
925-558 9 Dublin-San Ramon CA SNFCCAMKDS3  722   2012-12-31   
925-566 3 Concord CA SNFCCAMKDS3  722   2007-09-07   
925-567 0 Clayton CA SNFCCAMKDS3  722   2023-10-29   
925-567 1 Clayton CA SNFCCAMKDS3  722   2007-09-07   
925-567 2 Clayton CA SNFCCAMKDS3  722   2012-12-31   
925-567 7 Clayton CA SNFCCAMKDS3  722   2021-07-30   
925-567 8 Clayton CA SNFCCAMKDS3  722   2021-07-30   
925-567 9 Clayton CA SNFCCAMKDS3  722   2012-12-31   
925-568 1 Sunol CA SNFCCAMKDS3  722   2021-07-30   
925-568 7 Sunol CA SNFCCAMKDS3  722   2013-11-29   
925-568 8 Sunol CA SNFCCAMKDS3  722   2013-11-29   
925-570 2 Dublin-San Ramon CA SNFCCAMKDS3  722   2021-07-30   
925-574 5 Dublin-San Ramon CA SNFCCAMKDS3  722   2013-11-29   
925-574 6 Dublin-San Ramon CA SNFCCAMKDS3  722   2018-01-14   
925-574 8 Dublin-San Ramon CA SNFCCAMKDS3  722   2013-11-29   
925-574 9 Dublin-San Ramon CA SNFCCAMKDS3  722   2018-01-14   
925-578 1 East Contra Costa CA SNFCCAMKDS3  722   2021-07-30   
925-578 2 East Contra Costa CA SNFCCAMKDS3  722   2021-04-02   
925-578 3 East Contra Costa CA SNFCCAMKDS3  722   2021-04-02   
925-578 4 East Contra Costa CA SNFCCAMKDS3  722   2021-04-02   
925-578 6 East Contra Costa CA SNFCCAMKDS3  722   2021-07-30   
925-578 8 East Contra Costa CA SNFCCAMKDS3  722   2021-07-30   
925-578 9 East Contra Costa CA SNFCCAMKDS3  722   2021-07-30   
925-590 0 Bishop Ranch CA SNFCCAMKDS3  722   2023-10-29   
925-590 1 Bishop Ranch CA SNFCCAMKDS3  722   2023-10-29   
925-590 2 Bishop Ranch CA SNFCCAMKDS3  722   2023-10-29   
925-590 3 Bishop Ranch CA SNFCCAMKDS3  722   2023-10-29   
925-590 4 Bishop Ranch CA SNFCCAMKDS3  722   2023-10-29   
925-592 1 Moraga CA SNFCCAMKDS3  722   2016-03-11   
925-592 2 Moraga CA SNFCCAMKDS3  722   2016-03-11   
925-592 3 Moraga CA SNFCCAMKDS3  722   2020-05-04   
925-594 6 Danville CA SNFCCAMKDS3  722   2012-12-30   
925-594 7 Danville CA SNFCCAMKDS3  722   2012-12-30   
925-594 8 Danville CA SNFCCAMKDS3  722   2012-12-30   
925-605 0 Livermore CA SNFCCAMKDS3  722      
925-605 4 Livermore CA SNFCCAMKDS3  722   2003-01-08   
925-605 5 Livermore CA SNFCCAMKDS3  722   2005-07-07   
925-605 7 Livermore CA SNFCCAMKDS3  722   2006-01-09   
925-608 3 Martinez CA SNFCCAMKDS3  722   2022-10-15   
925-623 7 Pleasanton CA SNFCCAMKDS3  722   2023-03-09   
925-631 2 Moraga CA SNFCCAMKDS3  722   2023-10-29   
925-631 3 Moraga CA SNFCCAMKDS3  722   2023-10-29   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.