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AREA CODE · CALIFORNIA

Area code 628

Area code 628 covers San Francisco: Central DA, California. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: California Major City: San Francisco: Central DA Pacific Time (PT) Overlay: 415/628
01 / WHERE IT IS

Where is area code 628?

Area code 628 is assigned to San Francisco: Central DA and the surrounding region in California. Calls to numbers that start with 628 are routed to this area.

Area code 628 shares its territory with 415. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

San Francisco CountyMarin County

Line types

  • Mobile 26.56%
  • Landline 73.44%
02 / MAP

Area code 628 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in San Francisco: Central DA

This area code is in the Pacific Time (PT) time zone.

Local timeSan Francisco: Central DA, CA--:--:--

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America/Los_AngelesLive
04 / HOW TO DIAL

How to call San Francisco: Central DA

WITHIN THE US628 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 628 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 628 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 628 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 628 555 0123
🇦🇺Australia0011 1 628 555 0123
🇯🇵Japan010 1 628 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 628

Share of the number blocks by carrier and line type.

Landline

Fractel
23%
Sinch
22%
AT&T
16%
Bandwidth
9%
Infobip
6%
Others
24%

Mobile

T-MOBILE USA
53%
AT&T Mobility
25%
Verizon Wireless
16%
Sinch
4%
Shelcomm
2%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 628

192 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(628) 200 Landline San Francisco: Juniper DA SinchONVOY, LLC - CA
(628) 201 Landline San Francisco: Central DA SinchONVOY, LLC - CA
(628) 202 Mobile Belvedere T-MOBILE USAT-MOBILE USA, INC.
(628) 203 Landline Stinson Beach-Bolinas SinchONVOY, LLC - CA
(628) 204 Mobile Nicasio T-MOBILE USAT-MOBILE USA, INC.
(628) 205 Mobile San Francisco: Central DA Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
(628) 206 Landline San Francisco: Central DA AT&TPACIFIC BELL
(628) 207 Landline San Francisco: Montrose-Evergreen DA BandwidthBANDWIDTH.COM CLEC, LLC - CA
(628) 208 Landline San Francisco: Central DA VonageVONAGE AMERICA LLC
(628) 209 Landline Novato TelnyxTELNYX LLC

Showing 10 of 192 prefixes

07 / FAQ

Frequently asked questions about area code 628

Where is area code 628 used?
Area code 628 serves San Francisco: Central DA and the surrounding area in California, including San Francisco County, Marin County.
What city is area code 628 from?
The main city of area code 628 is San Francisco: Central DA, CA.
What time zone is area code 628 in?
Area code 628 is in the Pacific Time (PT) time zone (America/Los_Angeles).
Is 628 an overlay area code?
Yes. It shares its territory with 415. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 628 from the United States?
Dial the 10 digits: 628 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 628 number from another country?
Dial your country's exit code (or +), then 1, then 628 and the seven-digit number. From a mobile you can use +1 628 XXX XXXX.
Which carriers use area code 628?
Most landline blocks belong to Fractel and most mobile blocks to T-MOBILE USA. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 628 for landlines, mobiles or both?
Both. About 73.44% of the number blocks are landline, 26.56% mobile.
How do I save a 628 number in WhatsApp or my phone?
Save it in international format: +1 628 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 628?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

Nearby area codes

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Other area codes in California

209 · Modesto213 · Los Angeles310 · Compton: Gardena DA323 · Los Angeles341 · Fremont-Newark: Main DA350 · Modesto369 · Santa Rosa408 · San Jose: West DA415 · San Francisco: Central DA424 · Beverly Hills442 · Victorville: Victorville DA510 · Oakland: Main-Piedmont DA530 · Chico559 · Fresno562 · Long Beach619 · San Diego: San Diego DA626 · Alhambra650 · Palo Alto657 · Anaheim661 · Bakersfield: Main DA669 · San Jose: West DA707 · Santa Rosa714 · Anaheim747 · Burbank: Burbank DA760 · Palm Springs805 · Santa Barbara818 · Van Nuys820 · Camarillo831 · Salinas840 · Pomona858 · La Jolla909 · Ontario916 · Sacramento: Main DA925 · Walnut Creek949 · Irvine951 · Riverside

View all California area codes →