Quick answer: For an anonymous prank call, the most effective method is to let an AI call on your behalf from a dedicated number. With PrankCall AI, your personal number never appears, your voice isn't used, and the AI improvises a realistic scenario — all from your browser, with no app to install.

Why make an anonymous prank call?

The whole point of a good prank is the element of surprise. If the target sees your name or number pop up, the joke falls flat before it even begins. Anonymity keeps the mystery alive, stretches out the suspense, and — let's be honest — helps you dodge the friendly payback.

The catch is that old-school ways of hiding your number are limited: they mask the caller ID, but it's still your voice and your line doing the work. An AI solves both problems at once.

The 3 ways to call anonymously (and their limits)

1. The *67 prefix (hiding your caller ID)

Dialing *67 before the number keeps your caller ID from showing. Limit: the call still comes from your line, your voice gives you away instantly, and many people auto-reject withheld numbers.

2. Virtual numbers / second lines

Some apps offer a disposable second number. Limit: you have to install an app, create an account, and — worst of all — you still have to play the character yourself, live, without cracking up.

3. The AI prank call (the modern method)

The AI places the call from a dedicated service number. Your personal number never appears, and the artificial intelligence carries the conversation in a realistic voice. You just listen to the replay afterward.

How to make an anonymous prank call with PrankCall AI

  1. Write your scenario — an overexcited real estate agent, a lost delivery driver, an absurd survey.
  2. Pick an AI voice that fits the character (deep, cheerful, robotic…).
  3. Enter the target's number.
  4. Launch the call: the AI dials from its own number, so the target never sees yours.
  5. Listen to the replay and share the best moment.

No app to install, no prefix to remember, no trace from your personal line: anonymity is built in by default.

Staying on the right side: anonymous isn't a free pass

An anonymous prank call is still a harmless prank. That means: no threats, no repeated calls, no content that could genuinely scare the target. Phone harassment is punishable by law, even behind anonymity. The golden rule: reveal the joke quickly and make sure everyone ends up laughing. For more, read our article on whether prank calls are illegal.

Take it further

Looking for inspiration for your first anonymous call? Browse our funny prank call ideas, our pick of the best AI phone pranks, or learn how it all works in the complete AI prank call guide.

Ready to make your first anonymous prank call?

Sign up for PrankCall AI, write a scenario, and launch your first anonymous prank with your free sign-up credit in under 3 minutes — without ever revealing your number.