131.10.72.64/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address
131.10.72.64
Broadcast Address
131.10.72.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
131.10.72.65
Last Usable IP
131.10.72.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (131.10.72.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.10.72.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 131.10.72.64/26
Network Address 131.10.72.64
Broadcast Address 131.10.72.127
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class B
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 131.10.72.65
Last Usable IP 131.10.72.126
Network (Hex) 0x830A4840
Broadcast (Hex) 0x830A487F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00001010.01001000 10000011.00001010.01001000.01000000
Subnet Mask
11111111.11111111.11111111.11000000

The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.

Split into Equal Subnets

Split 131.10.72.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.10.72.64/27 131.10.72.64 131.10.72.65 131.10.72.94 131.10.72.95 30
2 131.10.72.96/27 131.10.72.96 131.10.72.97 131.10.72.126 131.10.72.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

131.10.72.64 net
131.10.72.65
131.10.72.66
131.10.72.67
131.10.72.68
131.10.72.69
131.10.72.70
131.10.72.71
131.10.72.72
131.10.72.73
131.10.72.74
131.10.72.75
131.10.72.76
131.10.72.77
131.10.72.78
131.10.72.79
… 48 more IPs …

/26 Subnet Reference

Total IPs 64
Usable Hosts 62
Subnet Mask 255.255.255.192
Wildcard 0.0.0.63

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