161.189.23.32/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
161.189.23.32
Broadcast Address
161.189.23.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
161.189.23.33
Last Usable IP
161.189.23.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (161.189.23.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 161.189.23.63 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 161.189.23.32/27
Network Address 161.189.23.32
Broadcast Address 161.189.23.63
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 161.189.23.33
Last Usable IP 161.189.23.62
Network (Hex) 0xA1BD1720
Broadcast (Hex) 0xA1BD173F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100001.10111101.00010111 10100001.10111101.00010111.00100000
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 161.189.23.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 161.189.23.32/28 161.189.23.32 161.189.23.33 161.189.23.46 161.189.23.47 14
2 161.189.23.48/28 161.189.23.48 161.189.23.49 161.189.23.62 161.189.23.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

161.189.23.32 net
161.189.23.33
161.189.23.34
161.189.23.35
161.189.23.36
161.189.23.37
161.189.23.38
161.189.23.39
161.189.23.40
161.189.23.41
161.189.23.42
161.189.23.43
161.189.23.44
161.189.23.45
161.189.23.46
161.189.23.47
… 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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