Why does my iPhone 6s randomly drop service on iOS 9.2?

I just bought a new iPhone 6s however it proven to be the phone from hell. It randomly drops service and LTE every 5-10 minutes and won't regain it unless I restart it or toggle airplane mode which sucks because I miss a ton of calls like this, it takes 2-3 tries every time to send a text message, and in the week I've had it I'm yet to complete a phone call without it being dropped at least once. I've had the same carrier for years and never had any of these issues and none of the other people on my plan have them either. Is there any way to fix this problem?

This should not be happening. Bring it to the Apple store for a replacement

That may be your carrier, mine never does that and I have iphone 6S also.

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