Area Code 628
| Active Prefix |
Primary City |
| 628-200 | San Francisco, CA |
| 628-201 | San Francisco, CA |
| 628-204 | Nicasio, CA |
| 628-205 | San Francisco, CA |
| 628-206 | San Francisco, CA |
| 628-207 | San Francisco, CA |
| 628-208 | San Francisco, CA |
| 628-209 | Novato, CA |
| 628-210 | Inverness, CA |
| 628-212 | Corte Madera, CA |
| 628-213 | San Francisco, CA |
| 628-214 | Novato, CA |
| 628-215 | Mill Valley, CA |
| 628-217 | San Francisco, CA |
| 628-218 | San Francisco, CA |
| 628-219 | San Francisco, CA |
| 628-220 | San Francisco, CA |
| 628-221 | San Francisco, CA |
| 628-222 | San Francisco, CA |
| 628-223 | San Francisco, CA |
| 628-224 | San Francisco, CA |
| 628-225 | San Francisco, CA |
| 628-227 | San Francisco, CA |
| 628-228 | San Francisco, CA |
| 628-230 | San Francisco, CA |
| 628-231 | San Francisco, CA |
| 628-232 | Inverness, CA |
| 628-233 | San Francisco, CA |
| 628-234 | San Rafael, CA |
| 628-235 | San Francisco, CA |
| 628-236 | Novato, CA |
| 628-237 | Sausalito, CA |
| 628-239 | San Francisco, CA |
| 628-241 | San Francisco, CA |
| 628-242 | San Francisco, CA |
| 628-243 | San Rafael, CA |
| 628-245 | Mill Valley, CA |
| 628-246 | San Francisco, CA |
| 628-247 | San Francisco, CA |
| 628-248 | San Francisco, CA |
| 628-249 | San Francisco, CA |
| 628-251 | San Francisco, CA |
| 628-252 | Corte Madera, CA |
| 628-253 | San Rafael, CA |
| 628-254 | Sausalito, CA |
| 628-255 | San Francisco, CA |
| 628-256 | San Francisco, CA |
| 628-257 | Mill Valley, CA |
| 628-300 | San Francisco, CA |
| 628-333 | San Francisco, CA |
| 628-400 | San Francisco, CA |
| 628-444 | San Francisco, CA |
| 628-500 | San Rafael, CA |
| 628-600 | San Francisco, CA |
| 628-777 | San Francisco, CA |
| 628-800 | San Francisco, CA |
| 628-867 | San Francisco, CA |
| 628-877 | Corte Madera, CA |
| 628-888 | San Rafael, CA |
| 628-895 | San Francisco, CA |
| 628-899 | San Francisco, CA |
| 628-900 | San Francisco, CA |
| 628-999 | San Francisco, CA |