O2 to O2 number transfer

[Del70]

I have recently pre-ordered the new S21 with an O2 contract via Samsung's "trusted supplier". On the supplier's application form they state that I wouldn't be able to transfer my current O2 number (of 20 years) to the new contract. On enquiring with them about it they stated I would have to move my number to new network so I could then move it back to O2. Is this correct?

[MI5 · Accepted solution]

@Del70 

No that's incorrect.

You just call O2 and they will migrate your number to the new contract. 

Guide: Migration & porting into O2  

[Del70]

That's what I've done plenty of times in the past when renewing contracts. Just thought it was an odd thing to claim.

[MI5]

Some networks don't allow it @Del70 

but O2 does.