Using a hotspot, or your phone as a hotspot, there is a hard throttle at 15 gigs with Verizon. Depriortization occurs on high traffic towers after 22 gigs, which shouldn't be a problem in rural areas.

What happens once I've used the 15 GB limit for Mobile Hotspot or Jetpack?

With the new Verizon Plan Unlimited, you get a 15 GB allowance of high-speed 4G LTE data for Mobile Hotspot and Jetpacks each billing cycle. Once you've used the 15 GB of 4G LTE data, your Mobile Hotspot data speed will be reduced to up to 600 Kbps for the rest of the billing cycle. Data will continue to be unlimited while your Mobile Hotspot is reduced to up to 600 Kbps
What happens after I use 22 GB of data?

Most of the time you'll continue to enjoy the same great network experience once your line exceeds 22 GB during your billing cycle.

If you've already used 22 GB on a particular line during your current billing cycle, and are on a cell site that is congested at that moment, your download may be temporarily queued behind other Verizon Wireless customers, which may result in slower download speeds relative to another Verizon Wireless customer's experience on the same cell site at that moment.
https://www.verizonwireless.com/supp...nlimited-faqs/