Neither should you, as unlike foreign ATC units, NATS have the full callsign name printed on the Flight Progress Strip....
Not at all NATS ACCs yet ... but maybe some day in a few years time
Sad to see Duo go .... spoke to a few flights the night before the bad news and the crews seemed as cheerful as ever.
Lets hope something arises from the ashes. The UK aviation industry always seems good at doing that.