Welcome to the community!
To clarify, is your 519 landline number from Rogers? If so, you should be able to port your landline number to your Fido line. While you would need to contact customer service to initiate the port-over, you would also need to contact Rogers to approve the port request since a landline cannot receive a SMS verification (see here). In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
Hope this helps 😀