251.72.230.96/27

Public

Class E (Reserved) — /27 prefix — 30 usable hosts

Network Address
251.72.230.96
Broadcast Address
251.72.230.127
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
251.72.230.97
Last Usable IP
251.72.230.126
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (251.72.230.96). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 251.72.230.127 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 251.72.230.96/27
Network Address 251.72.230.96
Broadcast Address 251.72.230.127
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class E (Reserved)
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 251.72.230.97
Last Usable IP 251.72.230.126
Network (Hex) 0xFB48E660
Broadcast (Hex) 0xFB48E67F
Address Type Public / Globally Routable

Binary Representation

Network Address
11111011.01001000.11100110 11111011.01001000.11100110.01100000
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.

Split into Equal Subnets

Split 251.72.230.96/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 251.72.230.96/28 251.72.230.96 251.72.230.97 251.72.230.110 251.72.230.111 14
2 251.72.230.112/28 251.72.230.112 251.72.230.113 251.72.230.126 251.72.230.127 14

IP Address Sample

Showing first 16 of 32 total IPs.

251.72.230.96 net
251.72.230.97
251.72.230.98
251.72.230.99
251.72.230.100
251.72.230.101
251.72.230.102
251.72.230.103
251.72.230.104
251.72.230.105
251.72.230.106
251.72.230.107
251.72.230.108
251.72.230.109
251.72.230.110
251.72.230.111
… 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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