226.237.20.100/30
Multicast RFC 5771Class D (Multicast) — /30 prefix — 2 usable hosts
Network Address
226.237.20.100
Broadcast Address
226.237.20.103
Subnet Mask
255.255.255.252
Usable Hosts
2
First Usable IP
226.237.20.101
Last Usable IP
226.237.20.102
Total IPs
4
Prefix Length
Network address — the base address of the block (226.237.20.100). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 226.237.20.103 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 2 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.252 is the dotted-decimal equivalent of /30. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 226.237.20.100/30 |
| Network Address | 226.237.20.100 |
| Broadcast Address | 226.237.20.103 |
| Subnet Mask | 255.255.255.252 |
| Wildcard Mask | 0.0.0.3 |
| Prefix Length | /30 |
| IP Address Class | Class D (Multicast) |
| Total IP Addresses | 4 |
| Usable Host Addresses | 2 |
| First Usable IP | 226.237.20.101 |
| Last Usable IP | 226.237.20.102 |
| Network (Hex) | 0xE2ED1464 |
| Broadcast (Hex) | 0xE2ED1467 |
| Governing RFC | RFC 5771 |
| Address Type | Multicast |
Binary Representation
Network Address
11100010.11101101.00010100
11100010.11101101.00010100.01100100
Subnet Mask
11111111.11111111.11111111.11111100
The first 30 bits (1s in the mask) identify the network. The remaining 2 bits identify hosts within the network.
All 4 IP Addresses in this Range
226.237.20.100
net
226.237.20.101
226.237.20.102
226.237.20.103
bcast
/30 Subnet Reference
Total IPs
4
Usable Hosts
2
Subnet Mask
255.255.255.252
Wildcard
0.0.0.3