Azwan was in the Brunei under-21 team that won the 2012 edition of Hassanal Bolkiah Trophy, a tournament for the national under-21 teams of ASEAN countries. He played for the Brunei under-23s at the 2013 SEA Games held in Myanmar, scoring against Laos in their penultimate game. He repeated the same feat at the 2015 SEA Games in a 1–2 loss.