| 0 | Reserved |
| 1 | Destination Unreachable |
| 2 | Packet Too Big |
| 3 | Time Exceeded |
| 4 | Parameter Problem |
| 5-99 | Unassigned |
| 100 | Private experimentation |
| 101 | Private experimentation |
| 102-126 | Unassigned |
| 127 | Reserved for expansion of ICMPv6 error messages |
| 128 | Echo Request |
| 129 | Echo Reply |
| 130 | Multicast Listener Query |
| 131 | Multicast Listener Report |
| 132 | Multicast Listener Done |
| 133 | Router Solicitation |
| 134 | Router Advertisement |
| 135 | Neighbor Solicitation |
| 136 | Neighbor Advertisement |
| 137 | Redirect Message |
| 138 | Router Renumbering |
| 139 | ICMP Node Information Query |
| 140 | ICMP Node Information Response |
| 141 | Inverse Neighbor Discovery Solicitation Message |
| 142 | Inverse Neighbor Discovery Advertisement Message |
| 143 | Version 2 Multicast Listener Report |
| 144 | Home Agent Address Discovery Request Message |
| 145 | Home Agent Address Discovery Reply Message |
| 146 | Mobile Prefix Solicitation |
| 147 | Mobile Prefix Advertisement |
| 148 | Certification Path Solicitation Message |
| 149 | Certification Path Advertisement Message |
| 150 | ICMP messages utilized by experimental mobility protocols such as Seamoby |
| 151 | Multicast Router Advertisement |
| 152 | Multicast Router Solicitation |
| 153 | Multicast Router Termination |
| 154 | FMIPv6 Messages |
| 155 | RPL Control Message |
| 156 | ILNPv6 Locator Update Message |
| 157 | Duplicate Address Request |
| 158 | Duplicate Address Confirmation |
| 159 | MPL Control Message |
| 160 | Extended Echo Request |
| 161 | Extended Echo Reply |
| 162-199 | Unassigned |
| 200 | Private experimentation |
| 201 | Private experimentation |
| 202-254 | Unassigned |
| 255 | Reserved for expansion of ICMPv6 informational messages |