650 Reverse Phone Lookup: Who Called Me?

650 Area Code Spam Calls Reported to FTC

650 area code phone numbers reported to the FTC in the last 30 days:

Phone Number Complaints Last Reported
(650) 881-2073
12
(650) 215-5272
9
(650) 203-0000
6
(650) 681-1444
6
(650) 759-7165
5
(650) 788-2546
4
(650) 761-6886
2
(650) 314-9252
2
(650) 725-9051
2
(650) 466-8541
2

Area Code 650 Scams

The 650 area code is heavily used for Google account security scams and business listing threats. Callers pretend to be from tech companies to steal your passwords or force business owners to pay for free services.

Google Account Security

Scammers spoof Google numbers and trigger real 2FA prompts on victim devices to hijack email accounts.

"Got a call from 1-650-203-0000. GOOGLE assistant. Telling me my Gmail account had been hacked. Please do this and the other. I did not however the did manage to hack my Gmail account and 15 seconds later tried to hack my Coinbase account."

Bank / Credit Cards

Fraudsters test stolen card numbers by charging small $1.07 amounts to fake tech company merchant names.

"Citibank card was repeatedly hit for $1.07 for Google stuff. Closed card, reissued card immediately hit for same amount. Quit Citibank. Last I heard the card was still taking hits."

Google Maps / My Business

Robocalls warn business owners their listing will be suspended unless they press 1 for unnecessary SEO services.

"This is an important message do not hang up the phone your Google business listing is at risk of displaying incorrectly We've tried numerous times to contact you by telephone so we can check the status of your listing... press one now to check the status of your Google listing if you're the business owner press one now Press 2 to be removed from this list."

Legal Process / Courts

Callers leave urgent voicemails threatening workplace legal document service for non-existent 4-year-old debts.

"I got a call from 650.292.2410 regarding serving me with court papers to my home or work if I don't call them back to stop the process server."

Social Security Administration

Automated messages allege SSN suspension and direct victims to press 1 to avoid legal enforcement.

"Recorded message saying my SSN has been suspended due to suspicious activity press 1 for more information on this case."

Microsoft / McAfee / Apple

Callers claim firewalls were disabled at 3:15 AM to trick victims into downloading remote access ransomware.

"Individual said he was calling from Microsoft to inform us that our computer had been compromised at about 0315 AM and our antivirus security software had been turned off. He could fix it if we would go to our computer now and give him access. We did not comply with his wishes and hung up."

Medical Billing Providers

Texts containing malicious links threaten collections for fake COVID-19 tests or outstanding doctor bills.

"Phone number texted me with multiple messages saying I owed money to a location where I did get a Covid test, and that they were going to report me to collections. The link looked very legitimate! Called the company who was named and I have no outstanding balance with them."

Area Code 650 Location: California

Phone numbers with the 650 area code prefix originate from San Mateo County, portions of San Francisco, and the northwestern part of Santa Clara County in California. It was split from area code 415 on August 2, 1997.

Counties Served:

  • San Mateo County
  • Santa Clara County
  • San Francisco County

Major Cities:

  • Palo Alto
  • Mountain View
  • Los Altos
  • San Francisco (part of)
  • Daly City (small portion in 415)
  • Redwood City
  • San Bruno
  • San Carlos
  • San Mateo
  • South San Francisco

Other Cities and Towns:

  • Atherton
  • Belmont
  • Broadmoor
  • Burlingame
  • Colma
  • East Palo Alto
  • El Granada
  • Emerald Lake Hills
  • Foster City
  • Half Moon Bay
  • Highlands-Baywood Park
  • Hillsborough
  • Kings Mountain
  • La Honda
  • Ladera

Who Is Calling From 650 Phone Numbers?

Palo Alto, San Mateo, and Redwood City fall within the 650 area code, a corridor where venture capital, Big Tech, and biotech converge. Calls come from Meta recruiters, Stanford Hospital billing, Genentech researchers, and venture capital executive assistants working the Peninsula's investment scene.