223.166.2.128/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
223.166.2.128
Broadcast Address
223.166.2.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
223.166.2.129
Last Usable IP
223.166.2.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (223.166.2.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 223.166.2.159 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 223.166.2.128/27
Network Address 223.166.2.128
Broadcast Address 223.166.2.159
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class C
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 223.166.2.129
Last Usable IP 223.166.2.158
Network (Hex) 0xDFA60280
Broadcast (Hex) 0xDFA6029F
Address Type Public / Globally Routable

Binary Representation

Network Address
11011111.10100110.00000010 11011111.10100110.00000010.10000000
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 223.166.2.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 223.166.2.128/28 223.166.2.128 223.166.2.129 223.166.2.142 223.166.2.143 14
2 223.166.2.144/28 223.166.2.144 223.166.2.145 223.166.2.158 223.166.2.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

223.166.2.128 net
223.166.2.129
223.166.2.130
223.166.2.131
223.166.2.132
223.166.2.133
223.166.2.134
223.166.2.135
223.166.2.136
223.166.2.137
223.166.2.138
223.166.2.139
223.166.2.140
223.166.2.141
223.166.2.142
223.166.2.143
… 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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