131.9.149.96/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.9.149.96
Broadcast Address
131.9.149.127
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.9.149.97
Last Usable IP
131.9.149.126
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.9.149.96). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.9.149.127 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 131.9.149.96/27
Network Address 131.9.149.96
Broadcast Address 131.9.149.127
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 131.9.149.97
Last Usable IP 131.9.149.126
Network (Hex) 0x83099560
Broadcast (Hex) 0x8309957F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00001001.10010101 10000011.00001001.10010101.01100000
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 131.9.149.96/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.9.149.96/28 131.9.149.96 131.9.149.97 131.9.149.110 131.9.149.111 14
2 131.9.149.112/28 131.9.149.112 131.9.149.113 131.9.149.126 131.9.149.127 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.9.149.96 net
131.9.149.97
131.9.149.98
131.9.149.99
131.9.149.100
131.9.149.101
131.9.149.102
131.9.149.103
131.9.149.104
131.9.149.105
131.9.149.106
131.9.149.107
131.9.149.108
131.9.149.109
131.9.149.110
131.9.149.111
… 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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