The expansion of the new mobile communications standard 5G continues to make significant progress in Germany. The EU, in collaboration with several mobile companies, has already launched a flagship initiative for the development of the sixth generation of mobile communications. The spreading of such new, faster standards requires free frequencies. For this reason, the old technologies must be gradually replaced. The switch-off of the 3G technology is already in full swing in Germany and has even been completely achieved in many locations, while other countries are sending GSM, the second generation of mobile communications, into retirement. We explain the advantages of the 2G switch-off, what are the consequences for private and industry customers, and also whether and when it can be expected in Germany.