If you cancel your plan, your number disappears. Usually you can’t port your number out of province, but have to get a local number. Until you are settled, I suggest keeping your current plan. If you determine your existing phone number still has value to you, you can port it to a VoIP provider, and call forward it to your new number, or use an app on your phone to access the number. Or you could get a dual SIM phone, and maintain your Winnipeg number on a second cellular account.