Reverse Phone Lookup San Francisco, CA

Find out who called from that unknown San Francisco number using our free reverse phone lookup service. Enter the full 10-digit number (including 628 and 415 or any other US area code) to search for available caller information including name, address, phone carrier, and more.

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Local Time in San Francisco, CA: 05:36 AM

Why People Use Reverse Phone Lookup in San Francisco

Got a phone call or message from a San Francisco, California phone number you don't recognize? Before you answer, call back, or reply, use our phone number lookup service to find out who's really on the other end, is it a scam, legitimate business or someone you'd rather avoid.

Identify Unknown Callers

The total population of San Francisco, CA, is 873,965. That's hundreds of thousands of potential callers you might not recognize: business contacts, neighbors, service providers, or complete strangers from the other part of the city.

When an unknown number calls, you're playing a lottery. Is it a sales call or someone you actually want to talk to? Without knowing who's calling, you either risk missing crucial calls or waste time on unwanted ones. That's where caller identification becomes essential.

Research Potential Scam Calls

Scam and spam calls continue to impact CA residents which, according to the National Do Not Call Registry Data Book, filed 287,916 complaints about unwanted calls in 2024. Of these, 161548 were robocalls, while 98127 involved live callers. The top complaint topics included imposters (27125), reducing debt (20756), medical and prescriptions (13374).

According to FTC 2024 data, CA residents reported 238,705 fraud cases in 2024, resulting in $1,678,703,608 in losses, with a median loss of $542 per victim. Given that more than 1 in 3 fraud attempts occur over the phone, verifying who is calling is critical for preventing financial losses.

How to report a fraudulent call in San Francisco?

If you receive fraudulent calls or suspect a scam attempt, report it to reportfraud.ftc.gov or local police department using the following contacts:

San Francisco Police Department - Bayview Station

201 Williams Avenue, San Francisco, CA 94124-2558

(415) 671-2300

San Francisco Police Department - Central Station

766 Vallejo Street, San Francisco, CA 94133-3818

(415) 315-2400

San Francisco Police Department - Ingleside Station

1 Sergeant John V Young Lane, San Francisco, CA 94112-2408

(415) 404-4000

San Francisco Police Department - Mission Station

630 Valencia Street, San Francisco, CA 94110-1126

(415) 558-5400

San Francisco Police Department - Northern Station

1125 Fillmore Street, San Francisco, CA 94115-4711

(415) 614-3400

San Francisco Police Department - Park Station

1899 Waller Street, San Francisco, CA 94117-2768

(415) 242-3000

San Francisco Police Department - Richmond Station

461 6Th Avenue, San Francisco, CA 94118-3009

(415) 666-8000

San Francisco Police Department - Southern Station

850 Bryant Street, San Francisco, CA 94103-4603

(415) 553-1373

San Francisco Police Department - Taraval Station

2345 24Th Avenue, San Francisco, CA 94116-2331

(415) 759-3100

San Francisco Police Department - Tenderloin Station

301 Eddy Street, San Francisco, CA 94102-2606

(415) 345-7300

Additionally, protect your household by registering your phone numbers at donotcall.gov or by calling 1-888-382-1222 from the number you wish to register.

Verify California Businesses

Have you received a call from a business but aren’t sure if it’s really them? San Francisco is primarily located in San Francisco County, which, according to U.S. Census Bureau data, includes 29,049 firms and 33,513 establishments employing 732,257 people.

County Percent of City Firms Establishments
San Francisco 100.00% 29049 33513

Use our service to reverse-lookup unknown California phone numbers to verify whether they actually belong to a company before answering or calling back. By cross-referencing phone numbers with local business directories, you can ensure you’re dealing with legitimate local businesses, services, contractors, or vendors—not scammers spoofing local numbers to gain your trust.

San Francisco Area Code and Phone Number Format

San Francisco area codes are 415, 628, 650. Phone numbers in California follow the following structure under the North American Numbering Plan:

  • - California area code (where the number was originally assigned)
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

California Area Codes Map

San Francisco, California Area Codes Map

Phone Number Search in Other California Cities

Phone Lookup Results May Include Available Information On:

  • Owner's Name
  • Current Address
  • Current Location
  • Family Members
  • Social Media Profiles
  • Images and Videos
  • Address History
  • Phone Type
  • Phone Carrier
  • Public Records
  • And Much More!

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