171.240.228.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
171.240.228.64
Broadcast Address
171.240.228.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
171.240.228.65
Last Usable IP
171.240.228.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (171.240.228.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 171.240.228.95 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 171.240.228.64/27
Network Address 171.240.228.64
Broadcast Address 171.240.228.95
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 171.240.228.65
Last Usable IP 171.240.228.94
Network (Hex) 0xABF0E440
Broadcast (Hex) 0xABF0E45F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101011.11110000.11100100 10101011.11110000.11100100.01000000
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 171.240.228.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 171.240.228.64/28 171.240.228.64 171.240.228.65 171.240.228.78 171.240.228.79 14
2 171.240.228.80/28 171.240.228.80 171.240.228.81 171.240.228.94 171.240.228.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

171.240.228.64 net
171.240.228.65
171.240.228.66
171.240.228.67
171.240.228.68
171.240.228.69
171.240.228.70
171.240.228.71
171.240.228.72
171.240.228.73
171.240.228.74
171.240.228.75
171.240.228.76
171.240.228.77
171.240.228.78
171.240.228.79
… 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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