For WiMAX networks, a globally unique Broadband Operator ID can be derived from the MCC/MNC tuple.
These are called mobile virtual network operators (MVNO) and are marked in the tables as such.
The following tables attempt to provide a complete list of mobile network operators.
ITU-T updates an official list of mobile network codes in its Operational Bulletins which are published twice a month.
[5] The official list is often incomplete as national MNC authorities do not forward changes to the ITU in a timely manner.