Lists of mobile country codes (MCC) and mobile network codes (MNC) are stored in tables in the DME server database. This is done as part of the DME server installation.
A list of operator names is also stored in a table in the DME server database. However, this list is built dynamically by gleaning the information from the data sent in by the devices. As part of the traffic logging, the device sends in the friendly operator name of the MNC. The first device to send in the operator name of a MNC wins - meaning that the name of that particular MNC will not be changed by other devices.
The device gets this operator name from the network relay station. However, the relay stations can contain errors, such as spelling mistakes or outdated operator names. For instance, a relay station may report the name of MCC 238 - MNC 01 as TDK-MOBIL, but the operator now calls itself TDC.
If the list of MCC and MNC is flawed, or if the operator name is wrong, you can change the information in the DME server database. For more information, contact your DME partner.