231.2.237.192/27

Multicast RFC 5771

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

Network Address
231.2.237.192
Broadcast Address
231.2.237.223
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
231.2.237.193
Last Usable IP
231.2.237.222
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (231.2.237.192). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 231.2.237.223 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 231.2.237.192/27
Network Address 231.2.237.192
Broadcast Address 231.2.237.223
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 231.2.237.193
Last Usable IP 231.2.237.222
Network (Hex) 0xE702EDC0
Broadcast (Hex) 0xE702EDDF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11100111.00000010.11101101 11100111.00000010.11101101.11000000
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 231.2.237.192/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 231.2.237.192/28 231.2.237.192 231.2.237.193 231.2.237.206 231.2.237.207 14
2 231.2.237.208/28 231.2.237.208 231.2.237.209 231.2.237.222 231.2.237.223 14

IP Address Sample

Showing first 16 of 32 total IPs.

231.2.237.192 net
231.2.237.193
231.2.237.194
231.2.237.195
231.2.237.196
231.2.237.197
231.2.237.198
231.2.237.199
231.2.237.200
231.2.237.201
231.2.237.202
231.2.237.203
231.2.237.204
231.2.237.205
231.2.237.206
231.2.237.207
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

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