100.96.8.160/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address

100.96.8.160

Broadcast Address

100.96.8.191

Subnet Mask

255.255.255.224

Usable Hosts

First Usable IP

100.96.8.161

Last Usable IP

100.96.8.190

Total IPs

Prefix Length

/27

Network address — the base address of the block (100.96.8.160). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 100.96.8.191 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 mask — 255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	100.96.8.160/27
Network Address	100.96.8.160
Broadcast Address	100.96.8.191
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	100.96.8.161
Last Usable IP	100.96.8.190
Network (Hex)	0x646008A0
Broadcast (Hex)	0x646008BF
Address Type	Public / Globally Routable

Binary Representation

Network Address

01100100.01100000.00001000 01100100.01100000.00001000.10100000

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 100.96.8.160/27 into 2 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.96.8.160/28	100.96.8.160	100.96.8.161	100.96.8.174	100.96.8.175	14
2	100.96.8.176/28	100.96.8.176	100.96.8.177	100.96.8.190	100.96.8.191	14

Split 100.96.8.160/27 into 4 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.96.8.160/29	100.96.8.160	100.96.8.161	100.96.8.166	100.96.8.167	6
2	100.96.8.168/29	100.96.8.168	100.96.8.169	100.96.8.174	100.96.8.175	6
3	100.96.8.176/29	100.96.8.176	100.96.8.177	100.96.8.182	100.96.8.183	6
4	100.96.8.184/29	100.96.8.184	100.96.8.185	100.96.8.190	100.96.8.191	6

Split 100.96.8.160/27 into 8 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	100.96.8.160/30	100.96.8.160	100.96.8.161	100.96.8.162	100.96.8.163	2
2	100.96.8.164/30	100.96.8.164	100.96.8.165	100.96.8.166	100.96.8.167	2
3	100.96.8.168/30	100.96.8.168	100.96.8.169	100.96.8.170	100.96.8.171	2
4	100.96.8.172/30	100.96.8.172	100.96.8.173	100.96.8.174	100.96.8.175	2
5	100.96.8.176/30	100.96.8.176	100.96.8.177	100.96.8.178	100.96.8.179	2
6	100.96.8.180/30	100.96.8.180	100.96.8.181	100.96.8.182	100.96.8.183	2
7	100.96.8.184/30	100.96.8.184	100.96.8.185	100.96.8.186	100.96.8.187	2
8	100.96.8.188/30	100.96.8.188	100.96.8.189	100.96.8.190	100.96.8.191	2

IP Address Sample

Showing first 16 of 32 total IPs.

100.96.8.160 net

100.96.8.161

100.96.8.162

100.96.8.163

100.96.8.164

100.96.8.165

100.96.8.166

100.96.8.167

100.96.8.168

100.96.8.169

100.96.8.170

100.96.8.171

100.96.8.172

100.96.8.173

100.96.8.174

100.96.8.175

… 16 more IPs …

/27 Subnet Reference

Total IPs 32

Usable Hosts 30

Subnet Mask 255.255.255.224

Wildcard 0.0.0.31

Full /27 reference →

Related Ranges

Parent /26 block 100.96.8.128/26 Sibling /27 block 100.96.8.128/27

Adjacent Prefix Sizes

/25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts /29 6 hosts