at&t gophone account refill phone number
AT&T GoPhone Prepaid Minutes Refill Instructions. 1  For GSM phones: PRESS *888* + (PIN Number) + # + SEND. 2  For TDMA phones: PRESS #20 + (PIN Number) + # + SEND.  Or, dial 611 (or 1-800-901-9878) from your wireless phone - a free call. Follow the instructions to add this card value to your account.