201.15.91.32/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
201.15.91.32
Broadcast Address
201.15.91.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
201.15.91.33
Last Usable IP
201.15.91.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (201.15.91.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 201.15.91.63 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 201.15.91.32/27
Network Address 201.15.91.32
Broadcast Address 201.15.91.63
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class C
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 201.15.91.33
Last Usable IP 201.15.91.62
Network (Hex) 0xC90F5B20
Broadcast (Hex) 0xC90F5B3F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001001.00001111.01011011 11001001.00001111.01011011.00100000
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 201.15.91.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 201.15.91.32/28 201.15.91.32 201.15.91.33 201.15.91.46 201.15.91.47 14
2 201.15.91.48/28 201.15.91.48 201.15.91.49 201.15.91.62 201.15.91.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

201.15.91.32 net
201.15.91.33
201.15.91.34
201.15.91.35
201.15.91.36
201.15.91.37
201.15.91.38
201.15.91.39
201.15.91.40
201.15.91.41
201.15.91.42
201.15.91.43
201.15.91.44
201.15.91.45
201.15.91.46
201.15.91.47
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another