A room for rent in San Francisco draws calls from many strangers.
List it with a 628 number, take the calls on your own phone and burn the number once the lease is signed.
Local 628 numbers
Get a 628 phone number for San Francisco and Marin County.
Ask for 628 when you create a number on ExpressNumber, and the number you hand out reads as San Francisco and the towns of Marin County. It rings the phone you already carry, and you burn it in one tap.
$0 todayLive in about a minute
This is how you get a 628 number.
- Start your 7 days free and open Create a number.
- Type 628 as the area code and give the number a name.
- Hand it out. Calls ring the phone you already carry, and texts land in your inbox.
- Burn it in one tap when you are done. Calls and texts to it stop at once.
9:41
Your numbers
Room for rent
(628) 555-0124
Forwarding
Used bike
(628) 555-0159
Texts only
Painting quote
(628) 555-0107
Blocked
People ask for 628 when the search is in San Francisco, San Rafael or Novato.
A bike or a couch sold on a marketplace in Mill Valley or San Rafael brings texts all week.
Post a 628 number with the photos, set it to Texts only and keep your own number off the listing.
A moving job or a painting quote in Novato ends in follow-up calls.
Give each company its own 628 number. Block the ones you did not choose.
This is where a 628 number is from.
Area code 628 has no ground of its own: it is the code laid over 415, which serves the greater San Francisco Bay area, including the City and County of San Francisco, the majority of Marin County and a small portion of San Mateo County, as the California Public Utilities Commission puts it.
The commission names Belvedere, Corte Madera, Fairfax, Larkspur, Mill Valley, Novato, Ross, San Anselmo, San Rafael, Sausalito and Tiburon among the cities served. Oakland uses 510, and San Mateo uses 650.
San Francisco and Marin County, CA
Area code 628 and the codes around it, oldest first.
1947
415
Shares the area
2015
628
This code
- San Francisco
- San Rafael
- Novato
- Mill Valley
- Larkspur
- San Anselmo
- Corte Madera
- Tiburon
- Fairfax
- Sausalito
- Belvedere
- Ross
These are the facts about area code 628.
From the public records of the body that runs US phone numbering, read October 21, 2026.
- Place
- San Francisco and Marin County, California
- In service since
- 2015
- Local calls are dialed with
- 1 plus ten digits
- Shares its area with
- 415 (1947)
415 is one of California's three original area codes, in service since 1947. The Public Utilities Commission approved a 628 overlay on December 19, 2013, so no one had to change a number.
628 entered service on March 21, 2015, the same year dialing a 1 and ten digits for local calls became mandatory.
Try it free for 7 days.
Then pick the plan that fits how many numbers you hand out.
Basic
7 days free$9.99/mo
- 5 numbers, one for each site, store or dealer
- 100 forwarded minutes a month
- Burn a number in one tap
- Extra numbers $1 a month each
Pro
7 days free$29.99/mo
- 100 numbers
- 1,000 forwarded minutes a month
- A number per vendor, client or listing
- Extra numbers 50¢ a month each
$0 today. Monthly plans, cancel any time.
People ask these questions about getting a 628 number.
More in the full FAQ.
Create a number in your dashboard, type 628 as the area code and give it a name, such as Room for rent. It is live in about a minute. You do not need to live in California: calls ring the phone you already carry.
Yes, for taking calls and texts. A painter, a tutor or a mover in San Francisco can put a 628 number on the flyer and the website, take the calls on their own phone and burn the number when the job is done.
Yes. The 628 area takes in San Francisco, San Rafael, Novato, Mill Valley and Sausalito. 415 numbers cover the same area.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
You get 7 days free and pay $0 today. After 7 days your plan starts: $9.99 a month for Basic or $29.99 a month for Pro. Cancel before then and you pay nothing.
More area codes
Every fact on this page comes from public numbering records.
The state, the dates and the related codes are rows of the North American Numbering Plan Administrator's area code database. The places are from its planning letters and the state’s own pages. Read October 21, 2026.
Put 628 on a number you can burn.
Hand out a number you can burn. Keep the one your family calls.
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