203.0.113.96/27

Public RFC 5737

Class C — /27 prefix — 30 usable hosts

Network Address
203.0.113.96
Broadcast Address
203.0.113.127
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
203.0.113.97
Last Usable IP
203.0.113.126
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (203.0.113.96). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 203.0.113.127 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 203.0.113.96/27
Network Address 203.0.113.96
Broadcast Address 203.0.113.127
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 203.0.113.97
Last Usable IP 203.0.113.126
Network (Hex) 0xCB007160
Broadcast (Hex) 0xCB00717F
Governing RFC RFC 5737
Address Type Public / Globally Routable

Binary Representation

Network Address
11001011.00000000.01110001 11001011.00000000.01110001.01100000
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.

Subnet Breakdown — splitting into /28

This /27 block can be divided into 2 /28 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
203.0.113.96/28 203.0.113.96 203.0.113.111 203.0.113.97 203.0.113.110 14
203.0.113.112/28 203.0.113.112 203.0.113.127 203.0.113.113 203.0.113.126 14

IP Address Sample

Showing first 16 of 32 total IPs.

203.0.113.96 net
203.0.113.97
203.0.113.98
203.0.113.99
203.0.113.100
203.0.113.101
203.0.113.102
203.0.113.103
203.0.113.104
203.0.113.105
203.0.113.106
203.0.113.107
203.0.113.108
203.0.113.109
203.0.113.110
203.0.113.111
… 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