APNIC manages unallocated IP address blocks and autonomous system numbers (bogons) to prevent their unauthorized use and propagation on the internet. As bogons can pollute routing tables and delay resource recycling, APNIC monitors for bogons related to addresses and ASNs under its management. When bogons are detected, APNIC contacts the autonomous systems announcing them to stop routing the prefixes. Through these efforts some ASNs comply while others ignore requests, but community support is needed to fully address the bogon problem.