No, the ILR is doing a coherence check with the data and only illustrates plausible data on the map. The operators are responsible for the quality of the data provided.

The fixed network maps are updated twice a year, based on data collected in June and December.

The Information illustrated on the coverage maps is categorised according to the level of quality and varies depending on the network technology:

• 2G : Quality « sufficient » for voice and SMS,
• 3G : Quality « sufficient » for data, voice and SMS
• 4G, 5G : Mobile internet access « sufficient », allowing download speeds of at least 30 Mbps,
• 4G : Internet access «good », allowing download speeds of at least 100 Mbps,
• 4G, 5G : Mobile Internet access « very good », allowing download rates of at least 300 Mbps,
• 5G : Mobile Internet access « excellent », allowing download speed of at least 1Gbps

The darker colour always represents the best quality available for a given technology.

Several reasons can explain the discrepancy of the speed illustrated on the map and the speed measured by quality measuring tools like Checkmynet.lu : (1) You are inside a building, (2) your mobile phone does not support certain configurations (frequency bands), (3) the cell usage load at the base station is too high, (4) the propagation of the signal is negatively affected (weather conditions, physical area, drop) or other factors that justify that the speed indicated on the coverage maps is not always reached.

For the usage of the map, it is recommended to use filters to obtain the expected results. More precisely, you can select the level of granularity (zoom function: municipalities, grid 1km x 1km, addresses) to display the coverage by technology (DOCSIS, optical fiber and very high-capacity networks – VHCN).

Specifically, you can select the network technology (2G, 3G, 4G or 5G), then the desired speed per grid for a given technology (all providers combined), or you select a specific mobile operator and search for the service quality provided.

The coverage (technology/quality of service) is illustrated by grid of 100m x 100m.

Several reasons can explain the discrepancy of the speed illustrated on the map and the speed measured by quality measuring tools like Checkmynet.lu : (1) You are inside a building, (2) your mobile phone does not support certain configurations (frequency bands), (3) the cell usage load at the base station is too high, (4) the propagation of the signal is negatively affected (weather conditions, physical area, drop) or other factors that justify that the speed indicated on the coverage maps is not always reached.

The data needed to create the different coverage come from mobile network operators with national coverage. Orange Communications Luxembourg SA, POST Luxembourg et Proximus Luxembourg SA.