238.243.207.192/27

Multicast RFC 5771

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

Network Address
238.243.207.192
Broadcast Address
238.243.207.223
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
238.243.207.193
Last Usable IP
238.243.207.222
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (238.243.207.192). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 238.243.207.223 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 238.243.207.192/27
Network Address 238.243.207.192
Broadcast Address 238.243.207.223
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 238.243.207.193
Last Usable IP 238.243.207.222
Network (Hex) 0xEEF3CFC0
Broadcast (Hex) 0xEEF3CFDF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11101110.11110011.11001111 11101110.11110011.11001111.11000000
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 238.243.207.192/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 238.243.207.192/28 238.243.207.192 238.243.207.193 238.243.207.206 238.243.207.207 14
2 238.243.207.208/28 238.243.207.208 238.243.207.209 238.243.207.222 238.243.207.223 14

IP Address Sample

Showing first 16 of 32 total IPs.

238.243.207.192 net
238.243.207.193
238.243.207.194
238.243.207.195
238.243.207.196
238.243.207.197
238.243.207.198
238.243.207.199
238.243.207.200
238.243.207.201
238.243.207.202
238.243.207.203
238.243.207.204
238.243.207.205
238.243.207.206
238.243.207.207
… 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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