Q: iPhone 6 frequent momentary loss of data signal

I've had my iPhone 6 since November 2014 and have had no problems connecting to cellular data until two days ago when my LTE signal started dropping to no data signal every few moments. I will connect to the internet for a few seconds, web pages will load, and then my signal will completely disappear, then reappear in another few moments.

I have hard and soft reset my iPhone, removed and replaced the SIM card, and updated to iOS 9.3.3, all to no avail. Don't believe it's my carrier as my wife has the exact same phone and she has had no issue connecting to, and keeping, her LTE signal. I am on Verizon, and to my knowledge there are no signal outages.

Has anyone dealt with this before, and have any recommendations?