185.4.180.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
185.4.180.0
Broadcast Address
185.4.180.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
185.4.180.1
Last Usable IP
185.4.180.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (185.4.180.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 185.4.180.31 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 185.4.180.0/27
Network Address 185.4.180.0
Broadcast Address 185.4.180.31
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 185.4.180.1
Last Usable IP 185.4.180.30
Network (Hex) 0xB904B400
Broadcast (Hex) 0xB904B41F
Address Type Public / Globally Routable

Binary Representation

Network Address
10111001.00000100.10110100 10111001.00000100.10110100.00000000
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 185.4.180.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 185.4.180.0/28 185.4.180.0 185.4.180.1 185.4.180.14 185.4.180.15 14
2 185.4.180.16/28 185.4.180.16 185.4.180.17 185.4.180.30 185.4.180.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

185.4.180.0 net
185.4.180.1
185.4.180.2
185.4.180.3
185.4.180.4
185.4.180.5
185.4.180.6
185.4.180.7
185.4.180.8
185.4.180.9
185.4.180.10
185.4.180.11
185.4.180.12
185.4.180.13
185.4.180.14
185.4.180.15
… 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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