Identify who called from an unknown California landline or cell phone number using our free reverse phone lookup service. With 3,312,069 FTC complaints from locals (ranking #2 nationwide), you can instantly search any phone number to find the caller's name, address, and spam or scam reports.
Includes 3,312,069 FTC Do Not Call and robocall complaints filed by California residents.
Federal Data
State Data
County Data
City Data
How to Look Up a California Phone Number
Got a missed call or a weird text from an unknown CA number? Whether the call is tied to a mobile line or a landline registered around Los Angeles, San Diego, San Jose, San Francisco, Sacramento, or Bakersfield, it's hard to know who is actually calling. Our database includes 3,312,069 FTC complaints filed by California residents. Search results may include:
Owner name and address (who the number belongs to)
Location based on area code (the city or area where the line was registered)
Spam and scam reports by users (if other people have flagged it as a nuisance call)
Phone Numbers Recently Reported for Spam Calls
Here are the top phone numbers recently reported to the FTC for making unwanted sales calls and robocalls (reported by local residents in the last 30 days):
Phone Number
Complaints to FTC
Last Reported
(855) 357-2205
97
(321) 499-1777
46
(309) 301-1878
43
(217) 394-8789
40
(217) 834-9230
40
(321) 499-1628
38
(877) 961-0995
36
(217) 834-9414
35
(217) 834-9346
34
(217) 834-9517
32
Monthly FTC Do Not Call & Robocall Complaints Volume
In April 2026, consumers from California filed 26,416 complaints about unwanted phone calls and text messages, down 8% from the previous month.
In 2024, California residents filed 287,916 unwanted call complaints with the FTC, of which 161,548 were robocalls and 98,127 involved live callers. The most reported complaint topics were imposters (27,125), reducing debt (20,756), medical and prescriptions (13,374).
23,904
May
2025
22,026
Jun
2025
28,142
Jul
2025
28,925
Aug
2025
23,417
Sep
2025
25,906
Nov
2025
21,899
Dec
2025
24,065
Jan
2026
22,559
Feb
2026
28,566
Mar
2026
26,416
Apr
2026
20,705
May▲
2026
Red Flags: Active Phone Scams in California
Active phone scams currently reported in California:
Chinese Consulate Mandarin Robocalls:
Relentless robocalls in Mandarin spoofing the Chinese Consulate in LA/SF or DHL, claiming visas are expiring or packages are undeliverable to extort the Chinese-American community.
LADWP, PG&E, & SMUD Disconnection:
Fake utility calls claiming a technician is en route to shut off power in 15-30 minutes, demanding payments like a $499 'smart meter security deposit' via Zelle.
Blue Shield Child Info Phishing:
Automated calls claiming to be Blue Shield with 'pertinent information' about a minor child (often knowing the child's name), attempting to extract the child's birthdate.
Crypto Investment Texts:
Unsolicited texts from 'Nick Nave' or 'Rafael Cox' promoting apps like 'CoinCircle', promising 8% APY or $200 daily returns on Bitcoin or Ethereum.
The FaceTime Flasher:
Disturbing late-night harassment (midnight to 4 AM) where unknown callers initiate FaceTime video calls and engage in indecent exposure.
Real Estate Spam ('Alice' & 'Simply Sell'):
Relentless texting campaigns from 'Alice' or 'Simply Sell' targeting 916 and 209 area code homeowners for lowball cash property sales.
Phone Number Search by Area Code
California area codes, coverage regions, and recent spam activity:
File a report with the following official agencies to flag unwanted calls or texts:
Federal Trade Commission (FTC):
Submit fraud complaints online at reportfraud.ftc.gov.
National Do Not Call Registry:
Register your number or report individual telemarketing violations at donotcall.gov or by calling 1-888-382-1222.
California Department of Consumer Affairs:
File a regional report directly with state authorities by calling (800) 952-5210.
California Phone Numbers
California has approximately 57.9 million active phone numbers. Cell phones are the dominant service with 48.7 million users, while traditional landlines are declining with 1.6 million connections statewide. Internet phone services account for about 7.5 million numbers.
Voice Subscriptions (thousands)
June 2023
Dec 2023
June 2024
Mobile telephony
47,209
48,351
48,696
Local exchange telephone service
2,274
2,115
1,646
VoIP subscriptions
7,864
7,521
7,549
Total
57,347
57,987
57,891
Source: FCC Voice Telephone Services Report
This indicates that when you search a phone number, it's very likely a cell phone. The continued decrease in landlines suggests that newer phone numbers may be more challenging to trace compared to older landline numbers that historically had more readily available public information.
Is Reverse Phone Lookup Legal in California?
Yes. California law does not prohibit residents from using reverse phone lookup services for personal use - but California has by far the most comprehensive privacy framework in the US, giving residents tools that simply don't exist in most other states. The Fair Credit Reporting Act (FCRA) prohibits using lookup results for employment screening, tenant decisions, or credit and insurance underwriting in every state. California's state law supplements these federal rules; it does not replace them.
What California's Privacy Laws Mean for Lookup Services
California operates under the California Consumer Privacy Act / California Privacy Rights Act (CCPA/CPRA), in effect since January 1, 2020, with major CPRA amendments from January 1, 2023. What sets California apart is the 2023 Delete Act (SB 362), which directed the California Privacy Protection Agency (CPPA) to build a centralized Delete Request and Opt-Out Platform (DROP). The DROP became available to consumers on January 1, 2026, and data brokers are required to begin processing DROP deletion requests starting August 1, 2026 (Cal. Civ. Code §§ 7610–7616). That means Californians can submit a single request to remove their phone number and personal data from every registered data broker at once - a capability no other state currently offers.
Beyond the DROP, CCPA/CPRA gives California residents the right to opt out of the sale or sharing of personal information (§ 1798.120), access and correct data held about them, request deletion, and receive a portable copy. The 45-day response window applies. Unlike most state laws, CCPA/CPRA covers employees and B2B contacts in addition to consumers, and there is no blanket small-business exemption. Enforcement sits with the dedicated CPPA, not just the Attorney General.
FAQs
How to opt out of phone number lookup services in California?
Under CCPA/CPRA, you can request removal of your phone number and personal details from reverse lookup services. Visit each site and click "Do Not Sell or Share My Personal Information" to submit a deletion request.
How do I know if a California business phone number is legit?
A reverse phone lookup can provide a business name, but that alone does not confirm legitimacy. While California has over 1,023,181 business establishments based on Census data, you should verify the company by searching for it in the California Business Search.
Why does California have so many VoIP phone numbers?
California has 7.5 million VoIP subscriptions, more than the total phone subscriptions in most states. Tech adoption and remote work explain part of this, though mobile numbers still dominate at 48.7 million. Traditional landlines represent only 1.6 million.
