74.111.85.144/28

Public

Class A — /28 prefix — 14 usable hosts

Network Address

74.111.85.144

Broadcast Address

74.111.85.159

Subnet Mask

255.255.255.240

Usable Hosts

First Usable IP

74.111.85.145

Last Usable IP

74.111.85.158

Total IPs

Prefix Length

/28

Network address — the base address of the block (74.111.85.144). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 74.111.85.159 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	74.111.85.144/28
Network Address	74.111.85.144
Broadcast Address	74.111.85.159
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	74.111.85.145
Last Usable IP	74.111.85.158
Network (Hex)	0x4A6F5590
Broadcast (Hex)	0x4A6F559F
Address Type	Public / Globally Routable

Binary Representation

Network Address

01001010.01101111.01010101 01001010.01101111.01010101.10010000

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 74.111.85.144/28 into 2 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	74.111.85.144/29	74.111.85.144	74.111.85.145	74.111.85.150	74.111.85.151	6
2	74.111.85.152/29	74.111.85.152	74.111.85.153	74.111.85.158	74.111.85.159	6

Split 74.111.85.144/28 into 4 equal /30 subnets (2 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	74.111.85.144/30	74.111.85.144	74.111.85.145	74.111.85.146	74.111.85.147	2
2	74.111.85.148/30	74.111.85.148	74.111.85.149	74.111.85.150	74.111.85.151	2
3	74.111.85.152/30	74.111.85.152	74.111.85.153	74.111.85.154	74.111.85.155	2
4	74.111.85.156/30	74.111.85.156	74.111.85.157	74.111.85.158	74.111.85.159	2

All 16 IP Addresses in this Range

74.111.85.144 net

74.111.85.145

74.111.85.146

74.111.85.147

74.111.85.148

74.111.85.149

74.111.85.150

74.111.85.151

74.111.85.152

74.111.85.153

74.111.85.154

74.111.85.155

74.111.85.156

74.111.85.157

74.111.85.158

74.111.85.159 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 74.111.85.128/27 Sibling /28 block 74.111.85.128/28

Adjacent Prefix Sizes

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