Help Is the O2 samsung Galaxy i7500 unlocked to any network?

[jthreads]

Hi everyone,
Sorry if this has been asked before but I couldn't find any clear answer.

I got this phone from O2 UK, unfortunately I don't have any chance to try out other SIM card onto this phone, do you know if this phone is unlocked to any network? Can I put any other SIM than O2?

Thanks in advance.

 

[Sumo]

You selling up then?

 

[jthreads]

You selling up then?

Well yes
How did you get it?

Just hoping it's unlocked so I can put it on eBay.

 

[Sumo]

They dont call me sherlock for nothing!