Si.mobil d.d., a mobile operator, provides pre-paid and post-paid plans. It also offers GPRS and WAP, and multimedia messaging services, and mobile broadband Internet over its own UMTS/HSDPA network. The company was founded in 1997 and is based in Ljubljana, Slovenia. As of December 12, 2001, Si.mobil d.d. operates as a subsidiary of A1 Telekom Austria AG.Si.mobil dd began to use the A1 trademark. With this,they embark on a new journey that will bring even more attractive services and an even more comprehensive user experience to users.