As the largest mobile network provider in PNG, the telecommunication firm is reminding its customers that the countdown is now on.
There won't be any further extensions, and Digicel has started to test systems to deactivate un-registered SIMs.
Digicel PNG Senior Vice President, Lorna McPherson, commented: “Our 2 million customers are very important to us, and we want to ensure they all remain connected. People still have time to register their SIM card and protect their number and connectivity.