173.8.31.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
173.8.31.0
Broadcast Address
173.8.31.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
173.8.31.1
Last Usable IP
173.8.31.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (173.8.31.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 173.8.31.31 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 173.8.31.0/27
Network Address 173.8.31.0
Broadcast Address 173.8.31.31
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 173.8.31.1
Last Usable IP 173.8.31.30
Network (Hex) 0xAD081F00
Broadcast (Hex) 0xAD081F1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101101.00001000.00011111 10101101.00001000.00011111.00000000
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 173.8.31.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 173.8.31.0/28 173.8.31.0 173.8.31.1 173.8.31.14 173.8.31.15 14
2 173.8.31.16/28 173.8.31.16 173.8.31.17 173.8.31.30 173.8.31.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

173.8.31.0 net
173.8.31.1
173.8.31.2
173.8.31.3
173.8.31.4
173.8.31.5
173.8.31.6
173.8.31.7
173.8.31.8
173.8.31.9
173.8.31.10
173.8.31.11
173.8.31.12
173.8.31.13
173.8.31.14
173.8.31.15
… 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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