- He was born on the 26th of November, 1985 in Kisimu
- His dream of playing in the UEFA Europa League was not realised with Azerbaijan Premier League side FC Baku, as he failed to obtain a work permit after working out a 2-year contract with the club
- Allan Wanga started playing while at primary school.
- As a youth he also played at various age levels for now defunct Kisumu based football club known as FIFA Kingdom.
- In 2005 he joined Kisumu-based Lolwe FC, then playing in Nationwide League
- He was signed by Premier League club Tusker F.C., in early 2007
- He scored 21 goals for Tusker FC.
- He won the Angolan Premier League (Girabola]
- Wanga’s father, Frank Wetende, is a former A.F.C. Leopards and Kisumu Posta footballer who also played for the national team in the 1970s and early 1980s.
- His role models are fellow Kenyan footballer McDonald Mariga of Inter Milan and French New York Red Bulls striker Thierry Henry.