The Australian International School of Bangkok (AISB) has two separate campuses, one is located in Sukhumvit Soi 20, and the other in Sukhumvit Soi 31 Bangkok, Thailand. The Sukhumvit Soi 20 campus was established in 2003 to cater for children aged 18 months to the primary school years, and the Soi 31 campus caters for children in lower and upper primary years K2, Y1 - Y5 and eventually middle school year 6 - 8.