Based on the search results, it is unclear what is meant by "iphone all operator imei sudah terdaftar." However, IMEI numbers are unique identifiers for mobile devices, and they can be used to check if a device is blacklisted or locked to a specific carrier. Apple has a website where users can enter their IMEI number and contact information to check if their device is eligible for service and support. It is also possible for the IMEI number on the phone to not match the one on the box.