Caller ID Warnings: Your phone or a third-party app might label the call as "Spam Risk," "Scam Likely," or similar.
Unknown or Suspicious Numbers: Be wary of calls from numbers you don't recognize, especially international numbers or numbers with unusual patterns.
Number Doesn't Match Caller ID: If the caller claims to be from a well-known company but the number is a local or generic mobile number, it's suspicious.
cautious of anyone claiming to be from the IRS, FBI, or other government agencies, as they typically don't make unsolicited calls demanding immediate action or personal information.
Requests for Personal Information: Never give out sensitive information like Social Security numbers, bank account details, or passwords to unsolicited callers.
Urgency and Threats: Scammers often create a sense of urgency or threaten negative consequences if you don't act immediately.
One-Ring Calls: Be cautious of impacts of overseas chinese consumers in uk calls that ring once and hang up, as they might be trying to trick you into calling back a premium number.
Reporting spam phone numbers:
Mark as Spam/Block: Most smartphones have built-in features to block numbers and report them as spam.
Carrier Apps: Use your mobile carrier's spam blocking app (e.g., T-Mobile ScamShield, Verizon Call Filter, AT&T ActiveArmor) to report numbers.
Third-Party Apps: Apps like Truecaller and Nomorobo often have reporting features.
Government Agencies:
USA: Report unwanted calls to the FTC at DoNotCall.gov or ReportFraud.ftc.gov.
India: Report UCC to your Telecom Service Provider (TSP) by SMS to 1909, calling 1909, or using their app/web portal.
Australia: Report scams to Scamwatch.gov.au.
Reverse Lookup Services: Some services allow you to report numbers as spam.
In summary, while a single comprehensive database of all spam phone numbers doesn't exist due to privacy and the constantly evolving nature of spam tactics, a combination of community reporting, carrier technologies, third-party apps, and your own vigilance are key to identifying and managing unwanted calls.