Signal usernames will keep your phone number private
 

Instant messaging app Signal is best known for its privacy-related settings, though with phone numbers being the heart of the platform since its inception, there was no way to fully hide your own number until now. Earlier today, Signal announced that you'll soon be able to create a unique username (not to be mistaken with your profile name), which you can share with others via a link or QR code — as opposed to sharing your number. You'll be able to change your unique username as often as you want, but it needs to contain two or more numbers at the end, as part of Signal's anti-spoofing efforts. You can even delete your username entirely, as it is an optional feature.

https://www.engadget.com/signal-user...3.html?src=rss