187.237.58.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
187.237.58.64
Broadcast Address
187.237.58.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
187.237.58.65
Last Usable IP
187.237.58.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (187.237.58.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 187.237.58.95 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 187.237.58.64/27
Network Address 187.237.58.64
Broadcast Address 187.237.58.95
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 187.237.58.65
Last Usable IP 187.237.58.94
Network (Hex) 0xBBED3A40
Broadcast (Hex) 0xBBED3A5F
Address Type Public / Globally Routable

Binary Representation

Network Address
10111011.11101101.00111010 10111011.11101101.00111010.01000000
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 187.237.58.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 187.237.58.64/28 187.237.58.64 187.237.58.65 187.237.58.78 187.237.58.79 14
2 187.237.58.80/28 187.237.58.80 187.237.58.81 187.237.58.94 187.237.58.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

187.237.58.64 net
187.237.58.65
187.237.58.66
187.237.58.67
187.237.58.68
187.237.58.69
187.237.58.70
187.237.58.71
187.237.58.72
187.237.58.73
187.237.58.74
187.237.58.75
187.237.58.76
187.237.58.77
187.237.58.78
187.237.58.79
… 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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