Yes. Judging by the data the client gets from the server at login, those servers are all on the same physical host:
('eqworld-01.everquest.com', 9000, 'Erollisi Marr - The Nameless')
('eqworld-01.everquest.com', 9001, 'Tunare - The Seventh Hammer')
('eqworld-01.everquest.com', 9002, 'Xegony -...