How do I activate my new SIM card? Simply dial 122 to activate your new SIM. Listen to the prompts and your SIM will automatically be activated on Digicel's network, then you are good to go. Related articles APN Internet / Data Settings and how to use them. Exclusive Bundle on MDA, how does it work? When does my sim-card expire? How to stop background apps from using your data Why does someone else have my number?