27.0.2.128/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address

27.0.2.128

Broadcast Address

27.0.2.191

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

27.0.2.129

Last Usable IP

27.0.2.190

Total IPs

Prefix Length

/26

Network address — the base address of the block (27.0.2.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 27.0.2.191 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	27.0.2.128/26
Network Address	27.0.2.128
Broadcast Address	27.0.2.191
Subnet Mask	255.255.255.192
Wildcard Mask	0.0.0.63
Prefix Length	/26
IP Address Class	Class A
Total IP Addresses	64
Usable Host Addresses	62
First Usable IP	27.0.2.129
Last Usable IP	27.0.2.190
Network (Hex)	0x1B000280
Broadcast (Hex)	0x1B0002BF
Address Type	Public / Globally Routable

Binary Representation

Network Address

00011011.00000000.00000010 00011011.00000000.00000010.10000000

Subnet Mask

11111111.11111111.11111111.11000000

The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.

Split into Equal Subnets

Split 27.0.2.128/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.0.2.128/27	27.0.2.128	27.0.2.129	27.0.2.158	27.0.2.159	30
2	27.0.2.160/27	27.0.2.160	27.0.2.161	27.0.2.190	27.0.2.191	30

Split 27.0.2.128/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.0.2.128/28	27.0.2.128	27.0.2.129	27.0.2.142	27.0.2.143	14
2	27.0.2.144/28	27.0.2.144	27.0.2.145	27.0.2.158	27.0.2.159	14
3	27.0.2.160/28	27.0.2.160	27.0.2.161	27.0.2.174	27.0.2.175	14
4	27.0.2.176/28	27.0.2.176	27.0.2.177	27.0.2.190	27.0.2.191	14

Split 27.0.2.128/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.0.2.128/29	27.0.2.128	27.0.2.129	27.0.2.134	27.0.2.135	6
2	27.0.2.136/29	27.0.2.136	27.0.2.137	27.0.2.142	27.0.2.143	6
3	27.0.2.144/29	27.0.2.144	27.0.2.145	27.0.2.150	27.0.2.151	6
4	27.0.2.152/29	27.0.2.152	27.0.2.153	27.0.2.158	27.0.2.159	6
5	27.0.2.160/29	27.0.2.160	27.0.2.161	27.0.2.166	27.0.2.167	6
6	27.0.2.168/29	27.0.2.168	27.0.2.169	27.0.2.174	27.0.2.175	6
7	27.0.2.176/29	27.0.2.176	27.0.2.177	27.0.2.182	27.0.2.183	6
8	27.0.2.184/29	27.0.2.184	27.0.2.185	27.0.2.190	27.0.2.191	6

Split 27.0.2.128/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	27.0.2.128/30	27.0.2.128	27.0.2.129	27.0.2.130	27.0.2.131	2
2	27.0.2.132/30	27.0.2.132	27.0.2.133	27.0.2.134	27.0.2.135	2
3	27.0.2.136/30	27.0.2.136	27.0.2.137	27.0.2.138	27.0.2.139	2
4	27.0.2.140/30	27.0.2.140	27.0.2.141	27.0.2.142	27.0.2.143	2
5	27.0.2.144/30	27.0.2.144	27.0.2.145	27.0.2.146	27.0.2.147	2
6	27.0.2.148/30	27.0.2.148	27.0.2.149	27.0.2.150	27.0.2.151	2
7	27.0.2.152/30	27.0.2.152	27.0.2.153	27.0.2.154	27.0.2.155	2
8	27.0.2.156/30	27.0.2.156	27.0.2.157	27.0.2.158	27.0.2.159	2
9	27.0.2.160/30	27.0.2.160	27.0.2.161	27.0.2.162	27.0.2.163	2
10	27.0.2.164/30	27.0.2.164	27.0.2.165	27.0.2.166	27.0.2.167	2
11	27.0.2.168/30	27.0.2.168	27.0.2.169	27.0.2.170	27.0.2.171	2
12	27.0.2.172/30	27.0.2.172	27.0.2.173	27.0.2.174	27.0.2.175	2
13	27.0.2.176/30	27.0.2.176	27.0.2.177	27.0.2.178	27.0.2.179	2
14	27.0.2.180/30	27.0.2.180	27.0.2.181	27.0.2.182	27.0.2.183	2
15	27.0.2.184/30	27.0.2.184	27.0.2.185	27.0.2.186	27.0.2.187	2
16	27.0.2.188/30	27.0.2.188	27.0.2.189	27.0.2.190	27.0.2.191	2

IP Address Sample

Showing first 16 of 64 total IPs.

27.0.2.128 net

27.0.2.129

27.0.2.130

27.0.2.131

27.0.2.132

27.0.2.133

27.0.2.134

27.0.2.135

27.0.2.136

27.0.2.137

27.0.2.138

27.0.2.139

27.0.2.140

27.0.2.141

27.0.2.142

27.0.2.143

… 48 more IPs …

/26 Subnet Reference

Total IPs 64

Usable Hosts 62

Subnet Mask 255.255.255.192

Wildcard 0.0.0.63

Full /26 reference →

Related Ranges

Parent /25 block 27.0.2.128/25 Sibling /26 block 27.0.2.192/26

Adjacent Prefix Sizes

/24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts