OK, so noob question for a techie guy because I've never dealt much with SIM cards...
I know both 7+ and S8+ use a nano-SIM, so that's all good.
Assuming I shut off iMessage & Facetime prior to the fact (from what I read, a critical step in the migration), can I just pop the iPhone SIM card into the S8+ and have the S8+ ready to go with my former iPhone phone #? (I realize I'll still have to migrate photos, contacts, etc.)
Then can I just go to Verizon, add a line, get a new SIM card and put in the iPhone and it's all good with a new #?