Hi,
You can use the following command:
gsmctl -A 'AT+QENG="servingcell"'
This command will output the PCID, EARFCN, and other serving cell information. As per Quectel documentation, the output:
+QENG: "servingcell",<state>,"LTE",<is_tdd>,<mcc>,<m
nc>,<cellid>,<pcid>,<earfcn>,<freq_band_ind>,<ul_band
width>,<dl_bandwidth>,<tac>,<rsrp>,<rsrq>,<rssi>,<sin
r>,<srxlev>
Kind Regards,
Andzej