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Random 10-Digit Number Generator

A fair random 10-digit number in one tap. Optionally allow leading zeros, or ask for a whole list.

  • Free
  • No sign-in
  • Nothing leaves your device
  • Works offline
Numbers Dice Coin Picker Lottery Strings UUID
Range

1000000000 – 9999999999

Press Generate for your random number
Leading zeros
More options
Engine

Secure uses your device’s cryptographic random engine. Nothing can predict or repeat it.

Nothing you generate is sent anywhere. How we know

In 3 steps

How to use it

  1. Choose your style

    Leave leading zeros off for a normal number, or switch them on for PIN-style codes.

  2. Press Generate

    Ask for one number or many.

  3. Copy the result

    Copy it in one tap. Nothing is stored.

Fast facts

Good to know

  • 9,000,000,000 possible numbers

    From 1,000,000,000 to 9,999,999,999, every one equally likely.

  • Ten billion possibilities

    A 10-digit number has 10 billion possibilities, about 33 bits of entropy, and repeats are essentially impossible in small batches.

  • Repeats happen

    Pick 5 numbers and there is a 1.1e-7% chance that at least two match.

  • Good for

    test phone-style numbers, sample IDs, mock data, big raffle numbers.

Ideas

What people use 10-digit numbers for

  • test phone-style numbers
  • sample IDs
  • mock data
  • big raffle numbers

FAQ

Random 10-Digit Number Generator: your questions answered

How do I generate a random 10-digit number?

Press Generate. The tool picks a whole number from 1,000,000,000 to 9,999,999,999, so it always has exactly 10 digits, with every one of those 9,000,000,000 numbers equally likely.

Can I use these as real phone numbers?

No. The digits are random, so they will not follow any country’s numbering rules, and they might belong to someone. Use them only as mock data.

How many 10-digit numbers are there?

There are 9,000,000,000 numbers with exactly 10 digits when the first digit cannot be zero, or 10,000,000,000 if leading zeros are allowed (from 0000000000 to 9999999999).

Can I get several 10-digit numbers at once without repeats?

Yes. Set “How many”, and switch on “No repeats” in the full generator on the home page if you need every number to be different.

Are the digits really random, and are they stored?

They come from your browser’s cryptographically secure random generator and are created on your device. They are never sent to us and never stored.

Keep going

Private by design. No accounts, no cookies, no tracking. Everything you generate stays on your device.

How we keep it that way

Ready? Press the button.

Free, fast and private. No sign-in, ever.

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