There’s an iTunes bug that allows you to check any iPhone carrier name and if its locked or unlocked, this bug can be used easily on web browsers. This supports old and new iPhones. since iPhone 4 up to latest iPhone 14 pro max.
This is a rare find some one shared full source code to check carrier locked or unlocked.
CARRIER CHECKER SOURCE CODE
How to use this iPhone carrier checker?
Supported devices: iPhone/iPad
THIS IS APPLE SIMLOCK CHECKER FROM ALBERT ITUNES BUG // THANKS EVERYONE HOPE U ENJOY IT
CARRIER CHECKER SOURCE CODE
Download the Source Code for carrier check API
==== instructions ====
For Devices which has only imei and serial number like iPhone 3gs till iPhone X u can use it like this example: iPhones without IMEI2
https://idevicehacks.com/icloud/res.php?imei=355353083680391&sn=FCDTJ0EZHFY7
Here is an example at my host: For Devices upper then iPhone Xs which has imei2 it needs like this:
EXAMPLE: iPhones with IMEI2
https://idevicehacks.com/icloud/res.php?imei=357219092006407&imei2=357219091959515&sn=G0NXG40EKPG1