You sure can! As long as your Du or Etisalat number is still active and registered under your name then you won't have any problems in transferring your pre-paid or post-paid number to us. All we ask is that you use the same ID  that you used to register your account with Du or Etisalat (EID or passport with valid UAE visa). For more information on how to transfer your number, head back to the 'Help Centre' and search for 'How can I transfer my existing number?'