iPhone 11 repeatedly dropping connection to cellular
My iPhone 11 keeps losing connection to cellular, and each time it happens, I am unable to make or receive calls or receive texts from non-iPhones. I know the area I'm in has poor coverage (I'm on Verizon), but I had never had this issue until the last week or two. If I shut down the phone and turn it back on, or go in and out of airplane mode, it will reconnect but then loses it again within hours or sometimes minutes. It's running iOS 17.2.1 if that's helpful information. I'm worried I'm missing calls and texts and need a solution that lasts longer than a couple hours. Thanks for any help!
iPhone 6s, iOS 13