Area code 628

Area code 628 is found in the US state of California. Approved in December 2013, the new 628 area code serves 3 California counties: San Francisco, Marin and a portion of San Mateo County, overlaying area code 415. Both area codes serve the same geographic area and to dial either local or toll calls within this NPA one has to enter 1 + 10 digits. Area code 628 was first put in service March 21, 2015. Currently, the largest city it serves is San Francisco, CA, and it overlaps coverage areas with area code 415. Phone numbers in the 628 area code can be found in 8 cities or locations.

List of cities in area code 628

Phone prefixes in the 628 area code

AreaCode/Prefix (Exchange) Usage
628-200 Unknown
628-201 Unknown
628-204 Unknown
628-205 Unknown
628-206 Unknown
628-207 Unknown
628-208 Unknown
628-209 Unknown
628-210 Unknown
628-212 Unknown
628-213 Unknown
628-214 Unknown
628-215 Unknown
628-217 Unknown
628-218 Unknown
628-219 Unknown
628-220 Unknown
628-221 Unknown
628-222 Unknown
628-223 Unknown
628-224 Unknown
628-225 Unknown
628-227 Unknown
628-228 Unknown
628-230 Unknown
628-231 Unknown
628-232 Unknown
628-233 Unknown
628-234 Unknown
628-235 Unknown
628-236 Unknown
628-237 Unknown
628-239 Unknown
628-241 Unknown
628-242 Unknown
628-243 Unknown
628-245 Unknown
628-246 Unknown
628-247 Unknown
628-248 Unknown
628-249 Unknown
628-251 Unknown
628-252 Unknown
628-253 Unknown
628-254 Unknown
628-255 Unknown
628-256 Unknown
628-257 Unknown
628-300 Unknown
628-333 Unknown
628-400 Unknown
628-444 Unknown
628-500 Unknown
628-600 Unknown
628-777 Unknown
628-800 Unknown
628-867 Unknown
628-877 Unknown
628-888 Unknown
628-895 Unknown
628-899 Unknown
628-900 Unknown
628-999 Unknown