131.9.173.32/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.9.173.32
Broadcast Address
131.9.173.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.9.173.33
Last Usable IP
131.9.173.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.9.173.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.9.173.63 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 131.9.173.32/27
Network Address 131.9.173.32
Broadcast Address 131.9.173.63
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 131.9.173.33
Last Usable IP 131.9.173.62
Network (Hex) 0x8309AD20
Broadcast (Hex) 0x8309AD3F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00001001.10101101 10000011.00001001.10101101.00100000
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 131.9.173.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.9.173.32/28 131.9.173.32 131.9.173.33 131.9.173.46 131.9.173.47 14
2 131.9.173.48/28 131.9.173.48 131.9.173.49 131.9.173.62 131.9.173.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.9.173.32 net
131.9.173.33
131.9.173.34
131.9.173.35
131.9.173.36
131.9.173.37
131.9.173.38
131.9.173.39
131.9.173.40
131.9.173.41
131.9.173.42
131.9.173.43
131.9.173.44
131.9.173.45
131.9.173.46
131.9.173.47
… 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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