I took out my sim and now when I go to call out it says invalid number. When people call me it says my phone number is invalid. I can still text and I am conected to the network.
Welcome to the Community
The SIM card needs to be in the device in order to make/receive calls. Text messaging might work if you're using a messaging app that needs data (Hangout, Viber, Whatsapp, iMessage).
Can you put it back in and try again?