Area Code 628
Area code 628 covers San Francisco and nearby cities including South San Francisco, San Rafael, Novato in California, in the Pacific Time.
Area code 628 quick facts
| Location | San Francisco, California |
|---|---|
| Time zone | Pacific Time |
| In service | 2015-03-21 |
| Overlay codes | 415 |
| Nearby codes | 415, 650, 925, 369, 707, 341 |
| Carrier coverage | 192 prefixes; 37% wireless |
| FTC complaint data | 100 complaints across 27 numbers |
| Data current as of | August 2, 2026 |
Is a call from 628 a scam? Who called me from 628?
FTC complaints involving 628 numbers
Numbers shown with area code 628 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Other”, “Reducing your debt (credit cards, mortgage, student loans)”, “Dropped call or no message”.
Most-complained 628 numbers:
- (628) 261-7841 — 7 complaints
- (628) 241-4293 — 5 complaints
- (628) 208-7620 — 5 complaints
- (628) 201-7751 — 5 complaints
- (628) 800-0576 — 4 complaints
These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.
Cities in area code 628
San Francisco, South San Francisco, San Rafael, Novato, San Anselmo
Area codes by city
Carriers in area code 628
Area code 628 spans 192 prefixes, about 37% wireless. Top carriers: ONVOY, LLC - CA, T-MOBILE USA, INC., CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA, TELEPORT COMMUNICATIONS AMERICA, LLC - CA. Look up the carrier and line type for a 628 number.
Other California area codes
- 209 — Stockton
- 213 — Los Angeles
- 279 — Sacramento
- 310 — Compton
- 323 — Los Angeles
- 341 — Oakland
- 350 — Stockton
- 357 — Fresno
- 369 — Santa Rosa
- 408 — San Jose
- 415 — San Francisco
- 424 — Compton
- 442 — Victorville
- 510 — Oakland
- 530 — Marysville
- 559 — Fresno
- 562 — Long Beach
- 619 — San Diego
- 626 — Alhambra
- 650 — Palo Alto
- 657 — Anaheim
- 661 — Bakersfield
- 669 — San Jose
- 707 — Santa Rosa
- 714 — Anaheim
- 738 — Los Angeles
- 747 — San Fernando
- 760 — Oceanside
- 805 — Oxnard
- 818 — Van Nuys
- 820 — Camarillo
- 831 — Salinas
- 837 — Redding
- 840 — Pomona
- 858 — San Diego
- 909 — Ontario
- 916 — Sacramento
- 925 — Concord
- 949 — Irvine
- 951 — Riverside
Nearby area codes
Frequently asked questions
Where is area code 628?
Area code 628 covers San Francisco and nearby cities including South San Francisco, San Rafael, Novato in California, in the Pacific Time.
What cities use area code 628?
Area code 628 serves San Francisco, South San Francisco, San Rafael, Novato, San Anselmo in California.
What time zone is area code 628 in?
Area code 628 is in the Pacific Time (America/Los_Angeles).
How do you dial a 628 number?
Dial all 10 digits: 628 followed by the 7-digit local number. From abroad, dial +1 628 and the local number.
Is a call from area code 628 a scam?
A 628 number is geographically tied to California, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.
Is 628 a country code?
No. 628 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 628 number written for international dialing looks like +1 628 followed by the 7-digit local number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.