Check that your phone is unlocked
Compare carrier plans, coverage, and pricing
Make sure your phone is compatible with the new carrier
Back up your phone data
Pay off any remaining device balance if required
Cancel or review your current carrier contract and fees
Get your account number and transfer PIN from your current carrier
Choose whether to keep your current phone number
Order a new SIM card or eSIM from the new carrier
Activate the new service
Port your number if you want to keep it
Test calls, texts, and mobile data
Return any leased equipment if needed
Update your billing and account information