D-Link DWR-961 User Manual page 14

Section 3 - Configuration
Network Status
MNC The mobile network code of the network carrier.
IMSI The International Mobile Subscriber Identity of the inserted SIM
card.
IMEI The International Mobile Equipment Identity.
Cell ID The CID number of the connection.
CAT The LTE category of the connection.
BAND The LTE band of the connection.
D-Link DWR-961 User Manual 10