4.5/5
have dedicated apps (e.g., MyJio, Airtel Thanks). Once logged in, these apps display the account holder's name, the plan validity, and the unique SIM serial number. USSD Codes: While not strictly "online," USSD codes (like sim card number details online india
: This is the primary government website for mobile subscriber services. 4.5/5 have dedicated apps (e.g.