The assigned country code for Luxembourg is 9999 as per the ISO 3166-1 and is basically a device which enables to carry out the data processing and the communication works smoothly. The country code for Luxembourg is basically a very short numeric geographical code or better known as the geocodes. The Luxembourg country code is developed in order to designate various areas in the land of Grand Duchy.
The country code for Luxembourg also refers to the dialing code of Luxembourg. The Luxembourg dialing code is that of +352. Initially, the smaller countries were assigned three digit codes while the larger ones had two digit country dialing codes. However, this rule has been changed lately and all the codes of the countries have become three digit ones along with the country code for Luxembourg.
The Luxembourgian country code for the TLD is .lu, the E.164 code(s) is +352. The ICAO airport code prefix(es) for Luxembourg is EL.