boost mobile
Can I purchase a phone on apple.com and use it with Boost Mobile?
Question marked as
When you buy an iPhone directly from Apple, you can select the 'Unlocked' option, which will allow you to use it with any SIM card that fits your iPhone.
Have a read of this to find out which SIM your iPhone supports: Learn which size SIM card your iPhone or iPad uses - Apple Support
-- Jay (they/them)