How can I know the EG91-EX work on 3G or 4G network?

Hello everyone!
Are there any AT Command to check the EG91-EX module is working on 3G or 4G network, now?


Hello, you can use AT+CREG? AT+CEREG? to query, please refer to the following documents for details.
Quectel_EC2x&EG2x&EG9x&EM05_Series_QCFG_AT_Commands_Manual_V1.0.pdf (767.7 KB)