Finding out SIM card operator

Question

My JAVA program can find a modem connected with serial port. Like:

COM1: Serial
COM3: Serial  // This is my modem
LPT1: Parallel
LPT2: Parallel

Is there any AT Command or other process which can help me to find out the operators identity (name), who's SIM is being used in the modem?

Answer 1

The command for finding out which.network you are registered on is

AT+COPS?

On mine, that outputs

+COPS: 0,0,"giffgaff",2

Where the string in the quotes is the operator's name.