239.151.7.192/27

Multicast RFC 5771

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

Network Address
239.151.7.192
Broadcast Address
239.151.7.223
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
239.151.7.193
Last Usable IP
239.151.7.222
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (239.151.7.192). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 239.151.7.223 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 239.151.7.192/27
Network Address 239.151.7.192
Broadcast Address 239.151.7.223
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 239.151.7.193
Last Usable IP 239.151.7.222
Network (Hex) 0xEF9707C0
Broadcast (Hex) 0xEF9707DF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11101111.10010111.00000111 11101111.10010111.00000111.11000000
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 239.151.7.192/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 239.151.7.192/28 239.151.7.192 239.151.7.193 239.151.7.206 239.151.7.207 14
2 239.151.7.208/28 239.151.7.208 239.151.7.209 239.151.7.222 239.151.7.223 14

IP Address Sample

Showing first 16 of 32 total IPs.

239.151.7.192 net
239.151.7.193
239.151.7.194
239.151.7.195
239.151.7.196
239.151.7.197
239.151.7.198
239.151.7.199
239.151.7.200
239.151.7.201
239.151.7.202
239.151.7.203
239.151.7.204
239.151.7.205
239.151.7.206
239.151.7.207
… 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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