111.13.171.128/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
111.13.171.128
Broadcast Address
111.13.171.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
111.13.171.129
Last Usable IP
111.13.171.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (111.13.171.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 111.13.171.159 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 111.13.171.128/27
Network Address 111.13.171.128
Broadcast Address 111.13.171.159
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class A
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 111.13.171.129
Last Usable IP 111.13.171.158
Network (Hex) 0x6F0DAB80
Broadcast (Hex) 0x6F0DAB9F
Address Type Public / Globally Routable

Binary Representation

Network Address
01101111.00001101.10101011 01101111.00001101.10101011.10000000
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.

Subnet Breakdown — splitting into /28

This /27 block can be divided into 2 /28 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
111.13.171.128/28 111.13.171.128 111.13.171.143 111.13.171.129 111.13.171.142 14
111.13.171.144/28 111.13.171.144 111.13.171.159 111.13.171.145 111.13.171.158 14

IP Address Sample

Showing first 16 of 32 total IPs.

111.13.171.128 net
111.13.171.129
111.13.171.130
111.13.171.131
111.13.171.132
111.13.171.133
111.13.171.134
111.13.171.135
111.13.171.136
111.13.171.137
111.13.171.138
111.13.171.139
111.13.171.140
111.13.171.141
111.13.171.142
111.13.171.143
… 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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