Check the phone’s built-in call log or recent calls list
Open the carrier’s mobile app or online account portal
Review the detailed call history on the bill or statement
Use a backup or synced device if the number is your own
Ask the account holder or phone owner for access to the records
Contact the mobile carrier’s customer support for authorized records
Check VoIP apps or services linked to the number, if applicable
Use lawful data recovery or device management tools for your own device
Obtain a court order or legal request if records are needed for official purposes