There seems to be a lot of questions about how much it will cost you to use your UK mobile phone whilst in the USA.

So I thought I would put this together, hopefully will help someone.

Please click on the links below:-

Orange Contract
Orange PAYG
iPhone on Orange

o2 Contract
o2 TU Go
If you have a Pay Monthly contract with O2 and have a compatible device you are able to make/receive calls and SMS over wifi by using TU Go. TU Go is an app which allows you to call/text people (over wifi) back in the UK and the call/SMS comes out of your monthly allowance as if you where in the UK... no roaming rates!
o2 PAYG
iPhone on o2

TMobile Contract/PAYG/Ufixit
TMobile checklist

Vodafone

Three Contract/PAYG

Tesco PAYG

Virgin Contract
Virgin PAYG


Using your iPhone in Orlando tips Here & Here

FAQ.

To call back home from you dial +44 and drop the leading 0 off the UK number

People calling you from the UK will just use your normal number.

People calling you from the US will use 01144 and drop the leading 0 off your mobile number.

To call US numbers while you are out there you need to dial +1 then the number.

I have removed some posts from this thread from 3 years ago, so the information will more than likely be out of date.

Some sim cards to use recommended previously are:
GoSim

0044

Tuyo

AT&T sim cards

Alternate phones to buy are Net10 & Tracfone
These can be bought from Walmart, Target & Super Target.

Virgin Atlantic/Holidays? Mobile phone http://www.thedibb.co.uk/forums/showthread.php?t=491159