RE:RE:RE:Dtek50 is a World phone Look at the antenna Bands
Actually Rogers is not CDMA. Bell and Telus were CDMA. Telus has already shut down their CDMA network and Bell is phasing it out with complete shutdown by Jan. 1, 2017.
You're correct about Verizon and Sprint in the US being CDMA however.
https://www.iphoneincanada.ca/carriers/bell/bell-shut-down-coma-network-2017/