131.101.68.128/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.101.68.128
Broadcast Address
131.101.68.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.101.68.129
Last Usable IP
131.101.68.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.101.68.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.101.68.159 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 131.101.68.128/27
Network Address 131.101.68.128
Broadcast Address 131.101.68.159
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 131.101.68.129
Last Usable IP 131.101.68.158
Network (Hex) 0x83654480
Broadcast (Hex) 0x8365449F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.01100101.01000100 10000011.01100101.01000100.10000000
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 131.101.68.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.101.68.128/28 131.101.68.128 131.101.68.129 131.101.68.142 131.101.68.143 14
2 131.101.68.144/28 131.101.68.144 131.101.68.145 131.101.68.158 131.101.68.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.101.68.128 net
131.101.68.129
131.101.68.130
131.101.68.131
131.101.68.132
131.101.68.133
131.101.68.134
131.101.68.135
131.101.68.136
131.101.68.137
131.101.68.138
131.101.68.139
131.101.68.140
131.101.68.141
131.101.68.142
131.101.68.143
… 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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