178.123.152.32/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
178.123.152.32
Broadcast Address
178.123.152.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
178.123.152.33
Last Usable IP
178.123.152.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (178.123.152.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 178.123.152.63 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 178.123.152.32/27
Network Address 178.123.152.32
Broadcast Address 178.123.152.63
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 178.123.152.33
Last Usable IP 178.123.152.62
Network (Hex) 0xB27B9820
Broadcast (Hex) 0xB27B983F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110010.01111011.10011000 10110010.01111011.10011000.00100000
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 178.123.152.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 178.123.152.32/28 178.123.152.32 178.123.152.33 178.123.152.46 178.123.152.47 14
2 178.123.152.48/28 178.123.152.48 178.123.152.49 178.123.152.62 178.123.152.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

178.123.152.32 net
178.123.152.33
178.123.152.34
178.123.152.35
178.123.152.36
178.123.152.37
178.123.152.38
178.123.152.39
178.123.152.40
178.123.152.41
178.123.152.42
178.123.152.43
178.123.152.44
178.123.152.45
178.123.152.46
178.123.152.47
… 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