Rice planthoppers (RPH) such as brown planthoppers (BPH), small brown planthoppers (SBPH), and white-backed planthoppers (WBPH) have been serious constraints to the rice production in Asian countries. It is important to manage their outbreak through the international cooperative network between concerned countries. RDA initiated a regional AFACI (Asian Food and Agriculture Cooperation Initiative) project for this purpose. And to facilitate information exchange of planthopper scouting data and technical knowledge between AFACI member countries, the internet-based AMIVS (www.amivs.org) Platform was being operated since 2011. In this system, scouting data includes daily light trap, aerial net data and weekly field collection data on BPH, WBPH, and SBPH and virus occurrence in scouting fields. Analysis results of the 2012 light trap and field collection data showed that each country or region has unique seasonal dynamics and dominance pattern of planthoppers according to the cropping pattern and environment. The high BPH density was mainly observed in Thailand and Vietnam. In other coutries, BPH density was rather low. Now, more and more scouting sites and data from member countries are entered in this system regularly, and we could expect that more substantial scouting information could be produced and shared in near future.