I just got my new iphone 11 and I want to make sure it is activated

Did you just take your old sim card and put it in the new one? Try calling a friend and see if it goes through, then you'll know its activated. If not, https://www.verizon.com/support/how-to-activate-device-video/

Did you buy it from Verizon or buy it with a Verizon activated version? I would try calling someone to see if it is activated.