236.252.21.224/27

Multicast RFC 5771

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

Network Address
236.252.21.224
Broadcast Address
236.252.21.255
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
236.252.21.225
Last Usable IP
236.252.21.254
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (236.252.21.224). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 236.252.21.255 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 236.252.21.224/27
Network Address 236.252.21.224
Broadcast Address 236.252.21.255
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 236.252.21.225
Last Usable IP 236.252.21.254
Network (Hex) 0xECFC15E0
Broadcast (Hex) 0xECFC15FF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11101100.11111100.00010101 11101100.11111100.00010101.11100000
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 236.252.21.224/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 236.252.21.224/28 236.252.21.224 236.252.21.225 236.252.21.238 236.252.21.239 14
2 236.252.21.240/28 236.252.21.240 236.252.21.241 236.252.21.254 236.252.21.255 14

IP Address Sample

Showing first 16 of 32 total IPs.

236.252.21.224 net
236.252.21.225
236.252.21.226
236.252.21.227
236.252.21.228
236.252.21.229
236.252.21.230
236.252.21.231
236.252.21.232
236.252.21.233
236.252.21.234
236.252.21.235
236.252.21.236
236.252.21.237
236.252.21.238
236.252.21.239
… 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