Retrieve prepaid phone number

My issue is that I lost my cell phone recently and have not found it, I have accepted that I will not get it back and have gotten a new phone. What I am wondering is, if I purchase a new prepaid SIM card, will I be able to retrieve the phone number I had connected to the phone I lost? Is there a fee I can pay? I have full access to my Koodo log in/self serve and have found upon there that I have until August to top up. Is it possible to add this new SIM card to my current account? Any help is MUCH appreciated, thank you!!