What is the Short Code for SIM card registration? To all Digicel Subsribers, if you wish to know whether your SIM card is registered under your name please follow the simple short code to dial; Dial *889*5*5# send This short code is issued by NICTA to check the status of your SIM card. Related articles Why should I register my SIM card? What is the 3 new social Pass Promotion ? What is Loop PNG?