O2 (UK) Telefónica O2 had a long-standing relationship with Arsenal F.C., being their shirt sponsor until the end of the 2005/2006 season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. O2 were the main sponsor of the Channel 4 reality TV show "Big Brother" from its second series (as BT Cellnet) in 2001 until its fourth series in 2003. They also sponsored the spin-off shows "Celebrity Big Brother 2" in 2002 and "" in 2003. In total O2 sponsored five series of the show. O2 sponsored music festivals, the Wireless Festivals, from
Partner Communications Company the largest non-real-estate deal in Israel that year. 012 Smile was itself the product of a 2006 merger between 012 Golden Lines and Internet Gold's Smile Communications. Partner Communications Company Partner Communications Company Ltd. () doing business as Partner (), formerly known as Orange Israel (), is a mobile network operator, internet Wi-Fi, fixed telephony service and OTT/IPTV provider in Israel. It was formerly operating under the Orange brand name until 16 February 2016. The company’s shares are traded on NASDAQ and the Tel Aviv Stock Exchange, where it is a constituent of the TA-25 Index; since August 2009, Scailex