Once again helpful information is forthcoming including from our very helpful staffer and very experienced CSD,
Can I help you
I believe flightradar24.com is good for finding out the registration number and subsequently you can find out from the Wifi thread on the ba board if it has it or not.
https://www.flyertalk.com/forum/brit...derway-17.html
Welcome to flyertalk
MikkelErikson, your most welcome here and the BA Forum Dashboard is a very good source of information regarding BA and oneworld matters as well.