Networks on iPad 4
I have an iPad 4 that has never had a SIM card put in it. Before I do, I wanted to know if once I have put the first SIM card in, will it then be locked to that network forever? Or can I change networks/sims whenever I want to?
I'd be really grateful for any help x
(I have searched for the answer but been unable to find a solid answer, so apoligies if I've missed it on here)
iPad, iPad 4