As it's already been mentioned, just make sure the phone and number is disposable to you. They've gotten stricter with roaming outside the U.S. where their phones may register on the network and work, but the ToS means you agree not to use it outside TracFone's service area. Some have had it work, then gotten cut off midway through their stay because TracFone's billing caught up with the roaming charges and they turned the phone off.
Originally Posted by michelb
I would just invest in a cheap T-Mobile phone kit ($15-20 at WalMart) and that way you'll have a phone and network designed to roam in Canada with zero risk of being turned off for violating the ToS. I do plan on going to Canada in the next few years and I already decided I would bring my T-Mobile prepaid SIM. I don't want roaming charges on my postpaid family plan, and I don't want to risk bringing a TracFone only to have it shut off just when I need it.
Castrol EDGE 5W-30 is my drug of choice.
Primary: iPhone 6s 128GB, Galaxy Note 3: 5 lines, 3x $5 Android web, 1x $2.99 T-Zones
Secondary: TracFones: iPhone 5 [AT&T] & Moto E 2nd gen [Verizon]
Mobile Broadband: ZTE Z915 LTE hotspot (5GB for $10) + iPad Mini Retina w/ T-Mobile LTE