mobile

I traveled to Mexico on vacation and returned home to Florida yesterday. Ever since I've stepped foot back in the US, my phone is no longer able to send or receive calls. Texts and 4G data both work fine though. Also, the time is stuck in Central Time Zone, rather than EST like it should be.

I spent over an hour on the phone w/ Verizon tech support but they couldn't figure it out. They gave up, recommending I should go into a store to swap out the sim card. I did that and it didn't work either. The store wanted to do a hard reset, but I just dont feel like it cause of all the backing up and restoring I'd have to do. So I thought I'd consult you guys here first. You're smarter than Vzn tech support any way!

I've played with all the Global/LTE phone network modes as well but with no luck.

Anyone here have any idea?
Its been a long time since I've done much to my phone and have forgotten most of how to do much but I am rooted running a stock ROM. To be honest, I can't even remember if I'm running TWRP or even if the bootloader is unlocked.. Again its been a year since I've done anything to the phone other than use it really..

Any help or advice would be HIGHLY appreciated!