200.120.28.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
200.120.28.64
Broadcast Address
200.120.28.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
200.120.28.65
Last Usable IP
200.120.28.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (200.120.28.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 200.120.28.95 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 200.120.28.64/27
Network Address 200.120.28.64
Broadcast Address 200.120.28.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class C
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 200.120.28.65
Last Usable IP 200.120.28.94
Network (Hex) 0xC8781C40
Broadcast (Hex) 0xC8781C5F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001000.01111000.00011100 11001000.01111000.00011100.01000000
Subnet Mask
11111111.11111111.11111111.11100000

The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.

Split into Equal Subnets

Split 200.120.28.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 200.120.28.64/28 200.120.28.64 200.120.28.65 200.120.28.78 200.120.28.79 14
2 200.120.28.80/28 200.120.28.80 200.120.28.81 200.120.28.94 200.120.28.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

200.120.28.64 net
200.120.28.65
200.120.28.66
200.120.28.67
200.120.28.68
200.120.28.69
200.120.28.70
200.120.28.71
200.120.28.72
200.120.28.73
200.120.28.74
200.120.28.75
200.120.28.76
200.120.28.77
200.120.28.78
200.120.28.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another