The ATCO numbers for EHAM, LFPG and EGLL
 

Hi, I am ATC Instructor in Ankara, Turkey. I just need the unofficial number of TWR and APP controllers who is in charge of EHAM, LFPG and EGLL (the most congested ones across Europe) to make a basic comparison. I searched through the whole web but I could only find the overall controller numbers for countries. I could only find the aforementioned numbers for EDDF through a friend. I will appreciate it if anyone can help me. Rgds.