11.82.211.80/28

Public

Class A — /28 prefix — 14 usable hosts

Network Address

11.82.211.80

Broadcast Address

11.82.211.95

Subnet Mask

255.255.255.240

Usable Hosts

First Usable IP

11.82.211.81

Last Usable IP

11.82.211.94

Total IPs

Prefix Length

/28

Network address — the base address of the block (11.82.211.80). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 11.82.211.95 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 14 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.255.240 is the dotted-decimal equivalent of /28. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	11.82.211.80/28
Network Address	11.82.211.80
Broadcast Address	11.82.211.95
Subnet Mask	255.255.255.240
Wildcard Mask	0.0.0.15
Prefix Length	/28
IP Address Class	Class A
Total IP Addresses	16
Usable Host Addresses	14
First Usable IP	11.82.211.81
Last Usable IP	11.82.211.94
Network (Hex)	0x0B52D350
Broadcast (Hex)	0x0B52D35F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00001011.01010010.11010011 00001011.01010010.11010011.01010000

Subnet Mask

11111111.11111111.11111111.11110000

The first 28 bits (1s in the mask) identify the network. The remaining 4 bits identify hosts within the network.

Split into Equal Subnets

Split 11.82.211.80/28 into 2 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.82.211.80/29	11.82.211.80	11.82.211.81	11.82.211.86	11.82.211.87	6
2	11.82.211.88/29	11.82.211.88	11.82.211.89	11.82.211.94	11.82.211.95	6

Split 11.82.211.80/28 into 4 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	11.82.211.80/30	11.82.211.80	11.82.211.81	11.82.211.82	11.82.211.83	2
2	11.82.211.84/30	11.82.211.84	11.82.211.85	11.82.211.86	11.82.211.87	2
3	11.82.211.88/30	11.82.211.88	11.82.211.89	11.82.211.90	11.82.211.91	2
4	11.82.211.92/30	11.82.211.92	11.82.211.93	11.82.211.94	11.82.211.95	2

All 16 IP Addresses in this Range

11.82.211.80 net

11.82.211.81

11.82.211.82

11.82.211.83

11.82.211.84

11.82.211.85

11.82.211.86

11.82.211.87

11.82.211.88

11.82.211.89

11.82.211.90

11.82.211.91

11.82.211.92

11.82.211.93

11.82.211.94

11.82.211.95 bcast

/28 Subnet Reference

Total IPs 16

Usable Hosts 14

Subnet Mask 255.255.255.240

Wildcard 0.0.0.15

Full /28 reference →

Related Ranges

Parent /27 block 11.82.211.64/27 Sibling /28 block 11.82.211.64/28

Adjacent Prefix Sizes

/26 62 hosts /27 30 hosts /28 14 hosts /29 6 hosts /30 2 hosts