187.237.30.224/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
187.237.30.224
Broadcast Address
187.237.30.255
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
187.237.30.225
Last Usable IP
187.237.30.254
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (187.237.30.224). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 187.237.30.255 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 187.237.30.224/27
Network Address 187.237.30.224
Broadcast Address 187.237.30.255
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 187.237.30.225
Last Usable IP 187.237.30.254
Network (Hex) 0xBBED1EE0
Broadcast (Hex) 0xBBED1EFF
Address Type Public / Globally Routable

Binary Representation

Network Address
10111011.11101101.00011110 10111011.11101101.00011110.11100000
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 187.237.30.224/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 187.237.30.224/28 187.237.30.224 187.237.30.225 187.237.30.238 187.237.30.239 14
2 187.237.30.240/28 187.237.30.240 187.237.30.241 187.237.30.254 187.237.30.255 14

IP Address Sample

Showing first 16 of 32 total IPs.

187.237.30.224 net
187.237.30.225
187.237.30.226
187.237.30.227
187.237.30.228
187.237.30.229
187.237.30.230
187.237.30.231
187.237.30.232
187.237.30.233
187.237.30.234
187.237.30.235
187.237.30.236
187.237.30.237
187.237.30.238
187.237.30.239
… 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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