https://productioncommunity.publicmobile.ca/t5/Get-Support/Remnant-of-temporary-number-after-porting...
The solution is very simple for android. Turn off WiFi. Keep Data on.
Go to setting --> mobile network --> choose sim card in problem ( if dual sim phone) --> select edit sim card name --> Change the card name from present carrier to any other carrier ( like Bell to Rogers or vice versa) then save and back out.
Go to Message app --> select account / profile --> select Message setting --> RCS chat --> Turn off (use WIFI or data for Messaging) slider. Then turn on the slider -- boom your correct number appears. Go back and change your correct carrier name, save it and again toggle the RCS on off slider. Correct carrier name will reappear.
