MTN South Africa USSD codes, please call me, check your mobile number and others

• Check airtime balance: *136#
• Master menu  buy data bundles and more *136*0#
• Load airtime: *136*voucher number#
• Find out your number: *123*888#
• Request airtime from another user: *141*6328*sponsor’s mobile number#
• Send airtime to another user: *136*3#
• Send a "Please Call Me" message: *121*mobile number#

Sometimes, you may run out of credit without any call or SMS credit. MTN mobile allows you to send a 'please call me' message to anyone in South Africa, helping them communicate even when they don't have sufficient balance for a call.