if you want the data centre split its as follows (only naming main realm of each cluster):
- ENRP (FR): Argent Dawn, Darkmoon Faire, Moonglade, Scarshield Legion
- EN1 (FR): Bronzebeard, Emiriss, Burning Legion, Kul Tiras, Shadowsong, Azjol-Nerub, Azuremyst, Blade’s Edge, Frostwhisper, Darkspear, Kor’gall, Bloodhoof, Bronze Dragonflight, Drak’thul, Dentarg, Doomhammer, Draenor, Stormreaver, Emerald Dream, Lightbringer, Magtheridon
- EN2 (NL): Grim Batol, Aggramar, Shattered Halls, Hellfire, Auchindoun, Chamber of Aspects, Karazhan, Ghostlands, Kazzak, Outland, Ragnaros, Ravencrest, Silvermoon, Stormscale, Wildhammer, Twisting Nether (+ Nemesis + Pozzo Dell’Eternità which are in the same CRZ Grouping)