I have been trying to find a source where I can find some of the USSD codes for O2 in the UK and possibly other network operators too. I thought they would pretty much be the same in all countries but turns out they are very very network specific. So far the only one that I have been able to work out is the IMEI number which I already know.
Thanking you in anticipation.
please read this thread before investing to much time on USSD:
Thank you for your response. Wow what an interesting discussion! I want to use the O2 USSD codes for general practice and to let people know that they can use USSD for certain purposes like call diverts, finding out ones imei, etc. I'm writing an ap note for future use and just to get familiarized with the channel and the concept as a whole. I have tried the Vodafone UK USSD codes and they all seem to be working out fine. I couldn't work out the O2 ones. Any help is truly appreciated.
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