Can you unlock a iphone 5? UK?

Can you unlock a iphone 5 which is on orange?
I remember a while ago when the EE network was introduced that i couldnt unlock the iphone but is it possible to unlock the phone to all networks now?

Yes, you can unlock a iphone 5. If a carrier has exclusive rights to a mobile then they don't want to allow you to buy it outright and move to another carrier. They wouldn't make any money.
Some websites have contracts with the carriers so you pay the website £50 and they give the carrier £10 it's all legal.

Most iphones can be permanently unlocked via IMEI. You can try here: http://gsmunlocklabs.com/unlock-iphone/

Yes, it is okay now to iPhone Factory Unlock. All you need to do is get an unlock service to have your phone unlock. Try it here at http://jailbreakhome.com/iphone-factory-unlock.