You shouldn't need to provide it. Canadian carriers have done away with CDMA so it's not like they need to whitelist your ESN,
If they do ask via an online check, just enter 1111111111119 .
I've jumped between carriers (Fido, Bell, Telus) and never really needed to provide it, just stick your SIM in.
Also, I use mine on Telus, which shares a network with Bell. You'll be fine.