228.226.140.128/27

Multicast RFC 5771

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

Network Address
228.226.140.128
Broadcast Address
228.226.140.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
228.226.140.129
Last Usable IP
228.226.140.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (228.226.140.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 228.226.140.159 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 228.226.140.128/27
Network Address 228.226.140.128
Broadcast Address 228.226.140.159
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 228.226.140.129
Last Usable IP 228.226.140.158
Network (Hex) 0xE4E28C80
Broadcast (Hex) 0xE4E28C9F
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11100100.11100010.10001100 11100100.11100010.10001100.10000000
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 228.226.140.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 228.226.140.128/28 228.226.140.128 228.226.140.129 228.226.140.142 228.226.140.143 14
2 228.226.140.144/28 228.226.140.144 228.226.140.145 228.226.140.158 228.226.140.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

228.226.140.128 net
228.226.140.129
228.226.140.130
228.226.140.131
228.226.140.132
228.226.140.133
228.226.140.134
228.226.140.135
228.226.140.136
228.226.140.137
228.226.140.138
228.226.140.139
228.226.140.140
228.226.140.141
228.226.140.142
228.226.140.143
… 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