231.9.207.224/27

Multicast RFC 5771

Class D (Multicast) — /27 prefix — 30 usable hosts

Network Address
231.9.207.224
Broadcast Address
231.9.207.255
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
231.9.207.225
Last Usable IP
231.9.207.254
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (231.9.207.224). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 231.9.207.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 231.9.207.224/27
Network Address 231.9.207.224
Broadcast Address 231.9.207.255
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class D (Multicast)
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 231.9.207.225
Last Usable IP 231.9.207.254
Network (Hex) 0xE709CFE0
Broadcast (Hex) 0xE709CFFF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11100111.00001001.11001111 11100111.00001001.11001111.11100000
Subnet Mask
11111111.11111111.11111111.11100000

The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.

Split into Equal Subnets

Split 231.9.207.224/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 231.9.207.224/28 231.9.207.224 231.9.207.225 231.9.207.238 231.9.207.239 14
2 231.9.207.240/28 231.9.207.240 231.9.207.241 231.9.207.254 231.9.207.255 14

IP Address Sample

Showing first 16 of 32 total IPs.

231.9.207.224 net
231.9.207.225
231.9.207.226
231.9.207.227
231.9.207.228
231.9.207.229
231.9.207.230
231.9.207.231
231.9.207.232
231.9.207.233
231.9.207.234
231.9.207.235
231.9.207.236
231.9.207.237
231.9.207.238
231.9.207.239
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another