Everything you need to know about area code 628 in California
QUICK FACTS
California
Pacific Time Zone
Overlay code
Estimated residents served
California
Shares territory with existing code
ABOUT THIS AREA CODE
Area code 628 is an overlay for San Francisco, sharing territory with the iconic 415 area code. It was introduced in 2015 to meet the growing demand for phone numbers in the city.
Phone numbers with the 628 area code follow the format (628) XXX-XXXX, where the next three digits represent the local exchange. The 628 area code is part of the North American Numbering Plan (NANP) and is regulated by the Federal Communications Commission (FCC).
If you receive a call from a 628 number that you don't recognize, you can search it using the lookup tool above. While the 628 area code legitimately serves millions of residents and businesses in the San Francisco area, scammers sometimes spoof local area codes to make their calls appear more trustworthy. Always verify unfamiliar numbers before returning calls or sharing personal information.
The San Francisco region served by area code 628 is one of the most significant areas in California. As an overlay code, 628 shares its geographic territory with other area codes in the region, meaning all local calls require 10-digit dialing.
For detailed information about any phone number in the 628 area code, including owner identification, carrier data, and spam reports, use our search tool above or visit one of our trusted lookup providers.
CITIES & COMMUNITIES
SPAM & SCAM ALERTS
These are frequently reported scam patterns from phone numbers using the 628 area code. Scammers often spoof area codes, so a call appearing to come from 628 may originate elsewhere.
Callers claim to be from the IRS, threatening arrest or legal action unless immediate payment is made. The real IRS always contacts taxpayers by mail first.
Callers claim your computer has a virus and offer to fix it remotely. They install malware or charge for unnecessary services.
Automated messages claim suspicious activity on your bank account and ask you to verify account details by pressing a number.
Stay Safe: Never share personal information with incoming callers. If suspicious, hang up and search the number above.
FREQUENTLY ASKED QUESTIONS
Area code 628 serves San Francisco, California. Area code 628 is an overlay for San Francisco, sharing territory with the iconic 415 area code. It was introduced in 2015 to meet the growing demand for phone numbers in the city.
Area code 628 is in the Pacific timezone. Calls from 628 numbers originate from the San Francisco region.
Not necessarily. Area code 628 serves many people in San Francisco. However, scammers can spoof any area code. If you receive a suspicious call from a 628 number, search it above before calling back.
Area code 628 was created in 2015. It is an overlay code sharing territory with an existing area code.
RELATED AREA CODES
WHO CALLED ME
If you received an unknown call from a 628 number, use our dedicated lookup page to identify the caller and check for scam reports.
Who Called Me From 628? →