IPRangeExplorer

2.9.2.208/28

Public

Class A — /28 prefix — 14 usable hosts

Network Address
2.9.2.208
Broadcast Address
2.9.2.223
Subnet Mask
255.255.255.240
Usable Hosts
14
First Usable IP
2.9.2.209
Last Usable IP
2.9.2.222
Total IPs
16
Prefix Length
/28

Network address — the base address of the block (2.9.2.208). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 2.9.2.223 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 2.9.2.208/28
Network Address 2.9.2.208
Broadcast Address 2.9.2.223
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 2.9.2.209
Last Usable IP 2.9.2.222
Network (Hex) 0x020902D0
Broadcast (Hex) 0x020902DF
Address Type Public / Globally Routable

Binary Representation

Network Address
00000010.00001001.00000010 00000010.00001001.00000010.11010000
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 2.9.2.208/28 into 2 equal /29 subnets (6 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 2.9.2.208/29 2.9.2.208 2.9.2.209 2.9.2.214 2.9.2.215 6
2 2.9.2.216/29 2.9.2.216 2.9.2.217 2.9.2.222 2.9.2.223 6

All 16 IP Addresses in this Range

2.9.2.208 net
2.9.2.209
2.9.2.210
2.9.2.211
2.9.2.212
2.9.2.213
2.9.2.214
2.9.2.215
2.9.2.216
2.9.2.217
2.9.2.218
2.9.2.219
2.9.2.220
2.9.2.221
2.9.2.222
2.9.2.223 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 2.9.2.192/27 Sibling /28 block 2.9.2.192/28

Adjacent Prefix Sizes

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

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