The realmlist provided on this site works for all servers and realms of Molten WoW.
This includes, but may not be limited to Wrath of the Lich King (WotLK 3.3.5a): Frostwolf, Lordaeron, Neltharion, Deathwing, Sargeras, Ragnaros, Warsong; Cataclysm (Cata 4.0.6a to 4.3.0): Deepholm and Greymane.