178.68.2.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
178.68.2.64
Broadcast Address
178.68.2.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
178.68.2.65
Last Usable IP
178.68.2.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (178.68.2.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 178.68.2.95 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 178.68.2.64/27
Network Address 178.68.2.64
Broadcast Address 178.68.2.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 178.68.2.65
Last Usable IP 178.68.2.94
Network (Hex) 0xB2440240
Broadcast (Hex) 0xB244025F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110010.01000100.00000010 10110010.01000100.00000010.01000000
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 178.68.2.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 178.68.2.64/28 178.68.2.64 178.68.2.65 178.68.2.78 178.68.2.79 14
2 178.68.2.80/28 178.68.2.80 178.68.2.81 178.68.2.94 178.68.2.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

178.68.2.64 net
178.68.2.65
178.68.2.66
178.68.2.67
178.68.2.68
178.68.2.69
178.68.2.70
178.68.2.71
178.68.2.72
178.68.2.73
178.68.2.74
178.68.2.75
178.68.2.76
178.68.2.77
178.68.2.78
178.68.2.79
… 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