178.66.115.224/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
178.66.115.224
Broadcast Address
178.66.115.255
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
178.66.115.225
Last Usable IP
178.66.115.254
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (178.66.115.224). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 178.66.115.255 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 178.66.115.224/27
Network Address 178.66.115.224
Broadcast Address 178.66.115.255
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 178.66.115.225
Last Usable IP 178.66.115.254
Network (Hex) 0xB24273E0
Broadcast (Hex) 0xB24273FF
Address Type Public / Globally Routable

Binary Representation

Network Address
10110010.01000010.01110011 10110010.01000010.01110011.11100000
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 178.66.115.224/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 178.66.115.224/28 178.66.115.224 178.66.115.225 178.66.115.238 178.66.115.239 14
2 178.66.115.240/28 178.66.115.240 178.66.115.241 178.66.115.254 178.66.115.255 14

IP Address Sample

Showing first 16 of 32 total IPs.

178.66.115.224 net
178.66.115.225
178.66.115.226
178.66.115.227
178.66.115.228
178.66.115.229
178.66.115.230
178.66.115.231
178.66.115.232
178.66.115.233
178.66.115.234
178.66.115.235
178.66.115.236
178.66.115.237
178.66.115.238
178.66.115.239
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

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