- 224.0.0.1 - All multicast hosts
- 224.0.0.2 - All multicast routers
- 224.0.0.4 - DVMRP routers
- 224.0.0.5 - OSPF routers
- 224.0.0.6 - OSPF DR routers
- 224.0.0.9 - RIPv2 routers
- 224.0.0.10 - EIGRP routers
- 224.0.0.13 - PIM routers
- 224.0.0.22 - IGMPv3
- 224.0.0.25 - RGMP
- 224.0.0.39 - Auto-RP announce (RP)
- 224.0.0.40 - Auto-RP Discovery (MA)