California 지역 코드: 628
Note：628 지역 번호는 다음과 같습니다 California, 미국. 국제 전화 번호는 001628 or 001-628、0010628、+1-628、+1+628、+1628、00-1-628、00 1 628.
More About Area Code 628
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.