A1 Telekom Austria Group is a provider of a range of fixed-line, broadband Internet, multimedia services, data, and IT systems, wholesale as well as mobile payment services. It is a subsidiary of Mexican telecommunications conglomerate América Móvil since 2014, and its headquarters are in Vienna. The company operates subsidiaries in seven European countries: Austria, Belarus, Bulgaria, Croatia, North Macedonia, Serbia, and Slovenia. Its largest subsidiary is the Austrian telecommunications provider A1 Telekom Austria. Wikipedia