27.9.2.96/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address

27.9.2.96

Broadcast Address

27.9.2.127

Subnet Mask

255.255.255.224

Usable Hosts

First Usable IP

27.9.2.97

Last Usable IP

27.9.2.126

Total IPs

Prefix Length

/27

Network address — the base address of the block (27.9.2.96). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 27.9.2.127 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	27.9.2.96/27
Network Address	27.9.2.96
Broadcast Address	27.9.2.127
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	27.9.2.97
Last Usable IP	27.9.2.126
Network (Hex)	0x1B090260
Broadcast (Hex)	0x1B09027F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00011011.00001001.00000010 00011011.00001001.00000010.01100000

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 27.9.2.96/27 into 2 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.9.2.96/28	27.9.2.96	27.9.2.97	27.9.2.110	27.9.2.111	14
2	27.9.2.112/28	27.9.2.112	27.9.2.113	27.9.2.126	27.9.2.127	14

Split 27.9.2.96/27 into 4 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.9.2.96/29	27.9.2.96	27.9.2.97	27.9.2.102	27.9.2.103	6
2	27.9.2.104/29	27.9.2.104	27.9.2.105	27.9.2.110	27.9.2.111	6
3	27.9.2.112/29	27.9.2.112	27.9.2.113	27.9.2.118	27.9.2.119	6
4	27.9.2.120/29	27.9.2.120	27.9.2.121	27.9.2.126	27.9.2.127	6

Split 27.9.2.96/27 into 8 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.9.2.96/30	27.9.2.96	27.9.2.97	27.9.2.98	27.9.2.99	2
2	27.9.2.100/30	27.9.2.100	27.9.2.101	27.9.2.102	27.9.2.103	2
3	27.9.2.104/30	27.9.2.104	27.9.2.105	27.9.2.106	27.9.2.107	2
4	27.9.2.108/30	27.9.2.108	27.9.2.109	27.9.2.110	27.9.2.111	2
5	27.9.2.112/30	27.9.2.112	27.9.2.113	27.9.2.114	27.9.2.115	2
6	27.9.2.116/30	27.9.2.116	27.9.2.117	27.9.2.118	27.9.2.119	2
7	27.9.2.120/30	27.9.2.120	27.9.2.121	27.9.2.122	27.9.2.123	2
8	27.9.2.124/30	27.9.2.124	27.9.2.125	27.9.2.126	27.9.2.127	2

IP Address Sample

Showing first 16 of 32 total IPs.

27.9.2.96 net

27.9.2.97

27.9.2.98

27.9.2.99

27.9.2.100

27.9.2.101

27.9.2.102

27.9.2.103

27.9.2.104

27.9.2.105

27.9.2.106

27.9.2.107

27.9.2.108

27.9.2.109

27.9.2.110

27.9.2.111

… 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 27.9.2.64/26 Sibling /27 block 27.9.2.64/27

Adjacent Prefix Sizes

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