15.159.91.224/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
15.159.91.224
Broadcast Address
15.159.91.255
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
15.159.91.225
Last Usable IP
15.159.91.254
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (15.159.91.224). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 15.159.91.255 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 15.159.91.224/27
Network Address 15.159.91.224
Broadcast Address 15.159.91.255
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 15.159.91.225
Last Usable IP 15.159.91.254
Network (Hex) 0x0F9F5BE0
Broadcast (Hex) 0x0F9F5BFF
Address Type Public / Globally Routable

Binary Representation

Network Address
00001111.10011111.01011011 00001111.10011111.01011011.11100000
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.

Subnet Breakdown — splitting into /28

This /27 block can be divided into 2 /28 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
15.159.91.224/28 15.159.91.224 15.159.91.239 15.159.91.225 15.159.91.238 14
15.159.91.240/28 15.159.91.240 15.159.91.255 15.159.91.241 15.159.91.254 14

IP Address Sample

Showing first 16 of 32 total IPs.

15.159.91.224 net
15.159.91.225
15.159.91.226
15.159.91.227
15.159.91.228
15.159.91.229
15.159.91.230
15.159.91.231
15.159.91.232
15.159.91.233
15.159.91.234
15.159.91.235
15.159.91.236
15.159.91.237
15.159.91.238
15.159.91.239
… 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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