131.63.142.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.63.142.64
Broadcast Address
131.63.142.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.63.142.65
Last Usable IP
131.63.142.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.63.142.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.63.142.95 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 131.63.142.64/27
Network Address 131.63.142.64
Broadcast Address 131.63.142.95
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 131.63.142.65
Last Usable IP 131.63.142.94
Network (Hex) 0x833F8E40
Broadcast (Hex) 0x833F8E5F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00111111.10001110 10000011.00111111.10001110.01000000
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 131.63.142.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.63.142.64/28 131.63.142.64 131.63.142.65 131.63.142.78 131.63.142.79 14
2 131.63.142.80/28 131.63.142.80 131.63.142.81 131.63.142.94 131.63.142.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.63.142.64 net
131.63.142.65
131.63.142.66
131.63.142.67
131.63.142.68
131.63.142.69
131.63.142.70
131.63.142.71
131.63.142.72
131.63.142.73
131.63.142.74
131.63.142.75
131.63.142.76
131.63.142.77
131.63.142.78
131.63.142.79
… 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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