how to change IP on iphone SE

Thank you for that information Phil and I do not connect to Wi-Fi I’ve gotten rid of my Wi-Fi at my home because it’s been a year and a half of packing and because I have two locations one IP address and I’ve got one device that’s why and it’s been like this and it’s horrible they hacked into my unemployment my bank account it’s been ongoing and I know nothing about technology so it’s been a complete nightmare and when Apple advised me a year ago to put my phone in recovery mode and reload it it was with my laptop that my phone was also paired with and I didn’t figure it out until today that because it was paired with my laptop to settings which were the same as my iPhone would keep everything exactly the same smh I am now a straight talk so that I’m not in a contract and I am not obligated to say with a provider even while not being secure… I was with T-Mobile and I have my account history and someone at T-Mobile changed my IP address on my phone to match a Franklin device that I no longer owned and then when I turned in my phone because of it three days later that phone logged into my Facebook