Not receiving text messages on iPad

Yes, it seems that your phone number is not registered in iMessages. If it's not on your iPhone, it won't be on your iPad either. It could easily be due to Reset, but your number should very much register again when you sign in to your Apple ID.

Do you have a SIM card with a working number in your iPhone?

Try to follow the same procedure as on your iPad, just on your iPhone.

Try to start by disabling iMessages. This is done in Settings > Messages.

After that, turn off your iPad, turn it back on - go back and enable iMessages. It is also important that your iPhone has iMessages registered and you can use your phone number from it.

See also this Support Article:

If you can't send or receive messages on your iPhone or iPad - Apple Support

You're welcome. Glad it was fixed!

I'm just an "almost" regular Apple user who finds pleasure in helping people with their tech problems when I have time 😊