171.77.163.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
171.77.163.64
Broadcast Address
171.77.163.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
171.77.163.65
Last Usable IP
171.77.163.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (171.77.163.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 171.77.163.95 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 171.77.163.64/27
Network Address 171.77.163.64
Broadcast Address 171.77.163.95
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 171.77.163.65
Last Usable IP 171.77.163.94
Network (Hex) 0xAB4DA340
Broadcast (Hex) 0xAB4DA35F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101011.01001101.10100011 10101011.01001101.10100011.01000000
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 171.77.163.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 171.77.163.64/28 171.77.163.64 171.77.163.65 171.77.163.78 171.77.163.79 14
2 171.77.163.80/28 171.77.163.80 171.77.163.81 171.77.163.94 171.77.163.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

171.77.163.64 net
171.77.163.65
171.77.163.66
171.77.163.67
171.77.163.68
171.77.163.69
171.77.163.70
171.77.163.71
171.77.163.72
171.77.163.73
171.77.163.74
171.77.163.75
171.77.163.76
171.77.163.77
171.77.163.78
171.77.163.79
… 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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