Open the Phone app
Tap the keypad or contacts section
Dial your carrier’s balance or account code if needed
Check Settings
Tap About phone
Look for Phone number or SIM status
Open Contacts
Tap your profile or My card
Check the top contact details
Open Messages
Start a new message
Check the sender or contact info if saved
Call another phone
Read the number on the caller ID screen
Check the SIM card packaging
Contact your mobile carrier
Use your carrier app or website
Ask someone to tell you the number after you call them