Phone Spoofing: What It Is and How to Detect It

Phone Spoofing: What It Is and How to Detect It

Phone spoofing is a technique used by scammers to falsify the information displayed on your caller ID. Instead of showing the actual originating number, a spoofed call can display any number the scammer chooses — including numbers from your local area, government agencies, or even your own number. Understanding how spoofing works is essential to protecting yourself from modern phone scams.

How Phone Spoofing Works

Spoofing exploits the way telephone networks transmit caller ID information. When a call is placed, the originating network sends a signal that includes the caller\\'s number, which is then displayed on the recipient\\'s phone. Spoofing services and VoIP technology allow callers to override this signal with any number they choose.

The technology behind spoofing is surprisingly accessible. Numerous online services and apps allow users to change their outgoing caller ID for a small fee. While there are legitimate uses for this technology — such as doctors calling patients from an office number rather than a personal cell phone — scammers have heavily exploited it.

Common Types of Phone Spoofing

• Neighbor spoofing: The scammer displays a number with the same area code and prefix as yours, making the call appear to come from someone nearby. This dramatically increases the likelihood that you\\'ll answer.
• Organization spoofing: The caller displays the number of a bank, government agency, or other trusted organization to lend credibility to the scam.
• Self-spoofing: Your own phone number appears on your caller ID. This alarming tactic is designed to make you curious enough to answer.

How to Detect a Spoofed Call

Detecting spoofed calls can be challenging, but these signs can help you identify them:

• The caller claims to be from an organization but the number doesn\\'t match: If someone says they\\'re calling from your bank, hang up and call the number on the back of your card.
• The call seems local but the caller is not: If a \"local\" number connects you to someone who doesn\\'t know your area, the number is likely spoofed.
• You receive a call from your own number: This is always spoofing — your phone cannot call itself.
• Caller requests personal information urgently: Legitimate organizations that call you already have your account information and rarely need to verify it over the phone.
• Reverse lookup shows a mismatch: Use CallerInfo.net to look up the number. If the registered owner doesn\\'t match who the caller claims to be, the call is spoofed.

The STIR/SHAKEN Framework

To combat spoofing, the FCC has mandated implementation of STIR/SHAKEN (Secure Telephone Identity Revisited / Signature-based Handling of Asserted information using toKENs). This technology verifies that the calling number is legitimate before the call reaches your phone. Calls that pass verification are displayed with a checkmark or \"Verified\" label on supported devices and carriers.

While STIR/SHAKEN has reduced some spoofing, it is not a complete solution. International calls and calls from smaller carriers may not be fully verified.

Protecting Yourself from Spoofed Calls

• Never trust caller ID alone — always verify through official channels
• Use CallerInfo.net to research any unfamiliar number
• Enable your carrier\\'s call verification features
• Do not answer calls from your own number
• Report spoofed calls to the FCC at fcc.gov/consumers/guides/spoofing-and-caller-id

Caller ID was designed for convenience, not security. Never make important decisions based solely on the number displayed on your screen.