Activating my micro sim

[Anonymous]

I have bought an iPhone 4S and am originally on O2 on my old iPhone 3, I have new sim and want to activate it and am not bothered about having a new number, how do I go about activating it?
Any help is needed

[Bambino]

You can keep your old number if you do it this way:

http://swapmysim.o2.co.uk/

[rawrz · Accepted solution]

or send the word swap to 20220 as well 😜