100.80.252.64/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address
100.80.252.64
Broadcast Address
100.80.252.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
100.80.252.65
Last Usable IP
100.80.252.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (100.80.252.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 100.80.252.127 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 100.80.252.64/26
Network Address 100.80.252.64
Broadcast Address 100.80.252.127
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class A
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 100.80.252.65
Last Usable IP 100.80.252.126
Network (Hex) 0x6450FC40
Broadcast (Hex) 0x6450FC7F
Address Type Public / Globally Routable

Binary Representation

Network Address
01100100.01010000.11111100 01100100.01010000.11111100.01000000
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 100.80.252.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 100.80.252.64/27 100.80.252.64 100.80.252.65 100.80.252.94 100.80.252.95 30
2 100.80.252.96/27 100.80.252.96 100.80.252.97 100.80.252.126 100.80.252.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

100.80.252.64 net
100.80.252.65
100.80.252.66
100.80.252.67
100.80.252.68
100.80.252.69
100.80.252.70
100.80.252.71
100.80.252.72
100.80.252.73
100.80.252.74
100.80.252.75
100.80.252.76
100.80.252.77
100.80.252.78
100.80.252.79
… 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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