Does Signal Show Your Phone Number? Privacy Settings Explained

Signal needs a phone number to register, but you can hide it from everyone and share a username instead. Here are the settings and what they change.

What Signal needs your number for

Signal registers your account with a phone number and sends a code by text or call to confirm it. The number is used to set up the account; it does not have to be visible to the people you chat with.

The settings that matter

Signal added usernames and these number settings in 2024. Update the app if you do not see them.

Who can still see it

• People who already have your number saved in their contacts may still recognise you, depending on your "find me" setting.
• Signal itself holds the number to deliver your account, though it says it keeps very little data.
• Anyone you give the number to.

Sharing a username or link

Create a username, then share it or the link Signal gives you. People can message you without seeing your number. You can change or delete the username at any time, which is handy if you posted it somewhere public.

Registration Lock

Turn on Registration Lock in Settings › Account. It requires your Signal PIN before your number can be registered on another phone, which protects you if someone gets a code sent to your number.

Using a separate number

Some people register Signal with a second number so their personal number is never linked to the account. Choose a number you can keep: Signal asks for a code again when you move to a new phone. See moving Signal to a new phone.

FAQ

Can people see my phone number on Signal?

Not if you set "Who can see my number" to Nobody.

Do I still need a phone number for Signal?

Yes, to register. You can then hide it.

Can someone find me on Signal by my number?

Only if your "Who can find me by number" setting allows it.

What is a Signal username?

A name you can share so people message you without your number.

Related: move Signal to a new phone · Signal code not received · Telegram number privacy.