131.11.22.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.11.22.64
Broadcast Address
131.11.22.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.11.22.65
Last Usable IP
131.11.22.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.11.22.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.11.22.95 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 131.11.22.64/27
Network Address 131.11.22.64
Broadcast Address 131.11.22.95
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 131.11.22.65
Last Usable IP 131.11.22.94
Network (Hex) 0x830B1640
Broadcast (Hex) 0x830B165F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00001011.00010110 10000011.00001011.00010110.01000000
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 131.11.22.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.11.22.64/28 131.11.22.64 131.11.22.65 131.11.22.78 131.11.22.79 14
2 131.11.22.80/28 131.11.22.80 131.11.22.81 131.11.22.94 131.11.22.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.11.22.64 net
131.11.22.65
131.11.22.66
131.11.22.67
131.11.22.68
131.11.22.69
131.11.22.70
131.11.22.71
131.11.22.72
131.11.22.73
131.11.22.74
131.11.22.75
131.11.22.76
131.11.22.77
131.11.22.78
131.11.22.79
… 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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