@jvin wrote:
Does the US version of the iPhone 6s Plus Model A1634 work on the Fido network?
Hello Jvin,
Welcome to the forums!
Judging from the specifications taken from here,
Model A1633*
Model A1634*
LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30)
TD-LTE (Bands 38, 39, 40, 41)
TD-SCDMA 1900 (F), 2000 (A)
UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
CDMA EV-DO Rev. A (800, 1700/2100, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
that phone would have all of the compatible bands for 2G, '3G', and LTE. You can verify the compatible bands here. As long as the phone is unlocked, there should be no issues with accessing the networks.
Hope this helps 
Cheers
