183.2.5.128/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address

183.2.5.128

Broadcast Address

183.2.5.191

Subnet Mask

255.255.255.192

Usable Hosts

First Usable IP

183.2.5.129

Last Usable IP

183.2.5.190

Total IPs

Prefix Length

/26

Network address — the base address of the block (183.2.5.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 183.2.5.191 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	183.2.5.128/26
Network Address	183.2.5.128
Broadcast Address	183.2.5.191
Subnet Mask	255.255.255.192
Wildcard Mask	0.0.0.63
Prefix Length	/26
IP Address Class	Class B
Total IP Addresses	64
Usable Host Addresses	62
First Usable IP	183.2.5.129
Last Usable IP	183.2.5.190
Network (Hex)	0xB7020580
Broadcast (Hex)	0xB70205BF
Address Type	Public / Globally Routable

Binary Representation

Network Address

10110111.00000010.00000101 10110111.00000010.00000101.10000000

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 183.2.5.128/26 into 2 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	183.2.5.128/27	183.2.5.128	183.2.5.129	183.2.5.158	183.2.5.159	30
2	183.2.5.160/27	183.2.5.160	183.2.5.161	183.2.5.190	183.2.5.191	30

Split 183.2.5.128/26 into 4 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	183.2.5.128/28	183.2.5.128	183.2.5.129	183.2.5.142	183.2.5.143	14
2	183.2.5.144/28	183.2.5.144	183.2.5.145	183.2.5.158	183.2.5.159	14
3	183.2.5.160/28	183.2.5.160	183.2.5.161	183.2.5.174	183.2.5.175	14
4	183.2.5.176/28	183.2.5.176	183.2.5.177	183.2.5.190	183.2.5.191	14

Split 183.2.5.128/26 into 8 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	183.2.5.128/29	183.2.5.128	183.2.5.129	183.2.5.134	183.2.5.135	6
2	183.2.5.136/29	183.2.5.136	183.2.5.137	183.2.5.142	183.2.5.143	6
3	183.2.5.144/29	183.2.5.144	183.2.5.145	183.2.5.150	183.2.5.151	6
4	183.2.5.152/29	183.2.5.152	183.2.5.153	183.2.5.158	183.2.5.159	6
5	183.2.5.160/29	183.2.5.160	183.2.5.161	183.2.5.166	183.2.5.167	6
6	183.2.5.168/29	183.2.5.168	183.2.5.169	183.2.5.174	183.2.5.175	6
7	183.2.5.176/29	183.2.5.176	183.2.5.177	183.2.5.182	183.2.5.183	6
8	183.2.5.184/29	183.2.5.184	183.2.5.185	183.2.5.190	183.2.5.191	6

Split 183.2.5.128/26 into 16 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	183.2.5.128/30	183.2.5.128	183.2.5.129	183.2.5.130	183.2.5.131	2
2	183.2.5.132/30	183.2.5.132	183.2.5.133	183.2.5.134	183.2.5.135	2
3	183.2.5.136/30	183.2.5.136	183.2.5.137	183.2.5.138	183.2.5.139	2
4	183.2.5.140/30	183.2.5.140	183.2.5.141	183.2.5.142	183.2.5.143	2
5	183.2.5.144/30	183.2.5.144	183.2.5.145	183.2.5.146	183.2.5.147	2
6	183.2.5.148/30	183.2.5.148	183.2.5.149	183.2.5.150	183.2.5.151	2
7	183.2.5.152/30	183.2.5.152	183.2.5.153	183.2.5.154	183.2.5.155	2
8	183.2.5.156/30	183.2.5.156	183.2.5.157	183.2.5.158	183.2.5.159	2
9	183.2.5.160/30	183.2.5.160	183.2.5.161	183.2.5.162	183.2.5.163	2
10	183.2.5.164/30	183.2.5.164	183.2.5.165	183.2.5.166	183.2.5.167	2
11	183.2.5.168/30	183.2.5.168	183.2.5.169	183.2.5.170	183.2.5.171	2
12	183.2.5.172/30	183.2.5.172	183.2.5.173	183.2.5.174	183.2.5.175	2
13	183.2.5.176/30	183.2.5.176	183.2.5.177	183.2.5.178	183.2.5.179	2
14	183.2.5.180/30	183.2.5.180	183.2.5.181	183.2.5.182	183.2.5.183	2
15	183.2.5.184/30	183.2.5.184	183.2.5.185	183.2.5.186	183.2.5.187	2
16	183.2.5.188/30	183.2.5.188	183.2.5.189	183.2.5.190	183.2.5.191	2

IP Address Sample

Showing first 16 of 64 total IPs.

183.2.5.128 net

183.2.5.129

183.2.5.130

183.2.5.131

183.2.5.132

183.2.5.133

183.2.5.134

183.2.5.135

183.2.5.136

183.2.5.137

183.2.5.138

183.2.5.139

183.2.5.140

183.2.5.141

183.2.5.142

183.2.5.143

… 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 183.2.5.128/25 Sibling /26 block 183.2.5.192/26

Adjacent Prefix Sizes

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