AFRINIC is responsible for managing internet number resources like IP addresses and autonomous system numbers in Africa. It allocates these resources to members according to policies developed by the AFRINIC community through an open policy development process. To become an AFRINIC member and obtain number resources, an organization must meet criteria like being legally incorporated in Africa and having infrastructure on the continent. The membership process involves applying online, having the application evaluated, signing a registration services agreement, and paying fees before resources are allocated.