Why Choose a 628 Area Code?
The 628 area code is an overlay for 415, covering the San Francisco Peninsula and parts of Marin County. While 415 is one of California's original area codes, the growing population and increasing number of devices led to the introduction of the 628 overlay in 2015.
Whether you choose a 415 or 628 number, your business will be locally recognizable across San Francisco, Sausalito, Daly City, Mill Valley, and more.