Area code · California
Get a 650 phone number
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A 650 number reads as San Mateo and the wider Peninsula and South Bay area, the same region that includes San Jose, San Francisco, Oakland, Fremont, Hayward, Sunnyvale, Santa Clara, and Concord. In the Ghost app you pick the 650 area code yourself, set up a second line on your existing phone, and start calling and texting in minutes.
See why thousands trust Ghost for their virtual phone number
Why choose a 650 virtual phone number?
Look local when you sell
If you're listing furniture, a car, or anything else online, a 650 number tells San Mateo buyers you're nearby, not out of state. That builds trust before they even reply.
Fit in with the South Bay scene
San Jose, Santa Clara, and Sunnyvale run on tech and networking. Showing up with a 650 number on a dating profile or in a group chat signals you're already part of the area.
Keep the number after you move
People move in and out of the Bay Area constantly. A 650 number on Ghost stays yours even after you leave San Mateo, so old contacts in Oakland or Fremont can still reach you.
Separate job hunting from your personal line
Applying for work in San Francisco or Concord means giving your number to recruiters and hiring managers you don't know yet. Keep that traffic off your main phone.
Recognized by neighbors and contacts
Whether you're calling someone in Hayward or texting a contact in Fremont, a 650 area code is familiar to people across the Peninsula and South Bay.
How to get a 650 phone number
- 1
Pick your area code
Choose any 650 area code, or any other US or Canadian code.
- 2
Choose your number
See available numbers instantly and pick the one you like.
- 3
Start calling and texting
Your number works over WiFi or data for everyday calling and texting. No SIM card, no new phone plan.
- 4
Stay in control
Mute it, set it to Do Not Disturb, or delete and replace it whenever you want.
Ghost can't be used for 911 or emergency calls, so keep your regular line for those.
Get My 650 NumberAbout the 650 area code
Area code
650
State
California
Overlay codes
408, 510, 669, 831, 916
Cities served
12+
The 650 area code covers San Mateo and stretches across a wide slice of the Bay Area, including San Jose, San Francisco, Oakland, Fremont, Hayward, Sunnyvale, Santa Clara, and Concord.
Neighboring and overlay codes in the region include 408, 510, 669, 831, and 916. 650 continues to serve its own base of numbers across San Mateo and the surrounding cities alongside those codes.
The region runs on America/Los_Angeles time, so calls and texts to contacts in San Jose, Oakland, or Concord line up on Pacific time with no adjustment needed.
Coverage from public numbering and census data. Sources
Local economy
Why do business in San Mateo?
The 650 area code sits inside a metro that spans San Mateo, San Jose, San Francisco, Oakland, and several other major Bay Area cities, home to a dense mix of industries and daily commuters.
Technology
San Jose, Santa Clara, and Sunnyvale anchor a tech-heavy job market that draws workers and job seekers from across the region.
Healthcare
Hospitals and clinics across San Francisco, Oakland, and San Mateo employ a steady share of the region's workforce.
Logistics
Cities like Fremont, Hayward, and Concord support warehousing and distribution work that moves goods throughout the Bay Area.
Frequently asked questions
How fast can I get a 650 phone number?
You can pick a 650 number in the Ghost app and start using it in minutes. No store visit, no waiting on a new SIM.
Which cities use the 650 area code?
650 serves San Mateo and reaches across the Bay Area to San Jose, San Francisco, Oakland, Fremont, Hayward, Sunnyvale, Santa Clara, and Concord.
Can I keep my 650 number if I move away from the Bay Area?
Yes. Once you set it up in Ghost, your 650 number stays with you on your phone no matter where you move next.
What does Ghost cost?
Ghost Premium is $60 every 2 months and includes 5 phone numbers, unlimited calling and texting in the US and Canada, your choice of area code, and the ability to delete and replace your number. Cancel anytime. No contracts.
Ready for your 650 number?
Pick a 650 (or 408, 510, 669, 831, 916) number and start calling and texting in minutes.
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