JCV is the one from Garmin site, not touched, D3060100A.
Well, the U is the one posted and works in 1390. Plus It's a 20 digit number, not 10.
I am not sure if V is correct thou. Can somebody check that on their device?

V: North America NT 2014.10 (0)
F: PID 1, FID 2920, North America NT 2014.10
U: XXF5J-J2ZFG-5TMJB-Y5T6P-Z365B