Most expensive telephone number sold at auction
Who
666-6666
What
2750000 US dollar(s)
Where
Qatar (Doha)
When

The most amount of money paid for a mobile (cell) phone number is 10 million QAR (then £1.46 million; $2.75 million), by an anonymous Qatari bidder for the number 666-6666 during a charity auction hosted by Qatar Telecom in Doha, Qatar on 23 May 2006. QAR = Qatari Riyal

http://today.reuters.com/news/newsArticle.aspx?type=oddlyEnoughNews&storyID=2006-05-23T142146Z_01_L23190784_RTRUKOC_0_US-QATAR-MOBILE.xml