| Prefix | Primary City |
|---|---|
| 669-200 | San Jose |
| 669-218 | San Jose |
| 669-220 | San Jose |
| 669-221 | Los Gatos |
| 669-222 | Campbell |
| 669-223 | San Jose |
| 669-224 | Sunnyvale |
| 669-225 | San Jose |
| 669-226 | San Jose |
| 669-227 | San Jose |
| 669-228 | San Martin |
| 669-231 | San Jose |
| 669-232 | Los Gatos |
| 669-233 | Los Gatos |
| 669-234 | San Jose |
| 669-235 | San Jose |
| 669-236 | San Jose |
| 669-237 | Campbell |
| 669-238 | San Jose |
| 669-241 | Sunnyvale |
| 669-242 | San Jose |
| 669-243 | San Jose |
| 669-244 | San Jose |
| 669-245 | San Jose |
| 669-246 | Sunnyvale |
| 669-247 | San Jose |
| 669-248 | Sunnyvale |
| 669-251 | Campbell |
| 669-252 | San Jose |
| 669-253 | Morgan Hill |
| 669-254 | Campbell |
| 669-255 | San Jose |
| 669-256 | Saratoga |
| 669-257 | San Martin |
| 669-258 | Morgan Hill |
| 669-261 | San Jose |
| 669-262 | San Jose |
| 669-263 | San Jose |
| 669-264 | Sunnyvale |
| 669-265 | San Jose |
| 669-266 | San Jose |
| 669-267 | Saratoga |
| 669-271 | Los Gatos |
| 669-272 | San Jose |
| 669-273 | Campbell |
| 669-276 | San Jose |
| 669-292 | San Jose |
| 669-294 | Campbell |
| 669-300 | Campbell |
| 669-327 | Gilroy |
| 669-333 | San Jose |
| 669-342 | San Jose |
| 669-350 | San Jose |
| 669-400 | San Jose |
| 669-444 | Fremont |
| 669-500 | Gilroy |
| 669-600 | Sunnyvale |
| 669-666 | Fremont |
| 669-721 | Sunnyvale |
| 669-777 | Sunnyvale |
| 669-800 | San Jose |
| 669-888 | Morgan Hill |
| 669-900 | San Jose |
| 669-999 | Fremont |