Can I unlock my iPhone 5 using ultrasnow?

My iPhone is on iOS 6.1 can I unlock it?

You can't unlock your iphone 5 it by jailbraking i.e. Installing ultrasnow. Those are completely different terms. Factory unlock is the only way to unlock your iphone. If you are interested, email me at stefan_zxcvb@live.com for details.

Jailbreaking your phone to unlock it is a stupid thing to do. You'll have to repeat the same steps when apple updates ios again and you also void your warranty… And there's absolutely no reason to do that. Using your IMEI, a new SIM, iTunes and this service you can "factory unlock" your iphone: http://gsmunlocklabs.com/unlock-iphone/