Deleted Personal Data, but cannot remove phone number from Messages

[user0SYp8s38Dn]

I am preparing to get rid of my Galaxy S9. I have deleted the personal data and I'm checking the remaining apps. My phone number is still in the Messages. I cannot delete the app, nor do i see a way to delete the phone number. 

[Robin621k]

Just do a factory reset. It will wipe your phone!

[user0SYp8s38Dn]

I did that, but the number is still visible in messages.

[Robin621k]

On what device is the number still visible?

A wiped phone is just that, a wiped phone.

Did you take the SIM card out?

[user0SYp8s38Dn]

It worked! Thanks. Now off to recycling event.

[user0SYp8s38Dn]

Galaxy S9

[user0SYp8s38Dn]

Haven't taken SIM card out, but suspect the number will remain.

[Robin621k · Accepted solution]

You have to take the SIM out, then factory reset!

[Rydah]

Yeah, as Robin said, take the SIM out then factory reset. It's reading the number from the SIM.