Iphone 4 Sprint Unlock

I have a Sprint iphone 4 which I havn't used for years. It's Sprint's and can it be unlocked so I can use another service?

So you the first advice would be go on youtube and watch some videos about unlocking a sprint iphone 4. But trust me you can't do this for free so be aware you will have to pay up to $25.youtube videos guide you to great webpages which are cordinated from hackers real life hackers they give your unlock code of your imei and stuff like that. I paid 20-25 dollars(i think).
I did it on a few phones and it was pretty good

I don't think Sprint Iphones have a sim slot so i doubt you can use it for any other company other than verizon as they don't use sim cards on iphones ethier

You can maybe use it on Verizon if your lucky. You can't due it on AT&T but tmobile you probably can and it has great affordable deals for contracts!