[1] Aas spent most of his career playing for Odd Grenland, before moving to Denmark for a two-year spell with OB.
In 2007, he was brought back to Norwegian football by Strømsgodset, where he was club captain until his retirement at the end of the 2012 season.
[2] Alexander Aas came to Odd Grenland from Skiens Grane as a junior player.
[2] On 20 September 2001, he was in the starting line-up for Odd Grenland when they played their first match in the UEFA Cup against Helsingborg.
[4] In January 2005, he signed a two-year contract with Danish Superliga club OB.