100.80.252.32/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
100.80.252.32
Broadcast Address
100.80.252.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
100.80.252.33
Last Usable IP
100.80.252.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (100.80.252.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 100.80.252.63 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 100.80.252.32/27
Network Address 100.80.252.32
Broadcast Address 100.80.252.63
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class A
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 100.80.252.33
Last Usable IP 100.80.252.62
Network (Hex) 0x6450FC20
Broadcast (Hex) 0x6450FC3F
Address Type Public / Globally Routable

Binary Representation

Network Address
01100100.01010000.11111100 01100100.01010000.11111100.00100000
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 100.80.252.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 100.80.252.32/28 100.80.252.32 100.80.252.33 100.80.252.46 100.80.252.47 14
2 100.80.252.48/28 100.80.252.48 100.80.252.49 100.80.252.62 100.80.252.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

100.80.252.32 net
100.80.252.33
100.80.252.34
100.80.252.35
100.80.252.36
100.80.252.37
100.80.252.38
100.80.252.39
100.80.252.40
100.80.252.41
100.80.252.42
100.80.252.43
100.80.252.44
100.80.252.45
100.80.252.46
100.80.252.47
… 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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