How do I deactivate my current number if I'm leaving the network?

To leave without taking your number, you need a STAC:

• In your account, open your line and choose Manage → Leaving Olilo → Get my STAC code, or
• text STAC to 75075 from your Olilo SIM.

Give the STAC to your new network. Your Olilo line ends on the day they switch you. There are no exit fees.