18.252.254.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
18.252.254.0
Broadcast Address
18.252.254.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
18.252.254.1
Last Usable IP
18.252.254.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (18.252.254.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 18.252.254.31 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 18.252.254.0/27
Network Address 18.252.254.0
Broadcast Address 18.252.254.31
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 18.252.254.1
Last Usable IP 18.252.254.30
Network (Hex) 0x12FCFE00
Broadcast (Hex) 0x12FCFE1F
Address Type Public / Globally Routable

Binary Representation

Network Address
00010010.11111100.11111110 00010010.11111100.11111110.00000000
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 18.252.254.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 18.252.254.0/28 18.252.254.0 18.252.254.1 18.252.254.14 18.252.254.15 14
2 18.252.254.16/28 18.252.254.16 18.252.254.17 18.252.254.30 18.252.254.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

18.252.254.0 net
18.252.254.1
18.252.254.2
18.252.254.3
18.252.254.4
18.252.254.5
18.252.254.6
18.252.254.7
18.252.254.8
18.252.254.9
18.252.254.10
18.252.254.11
18.252.254.12
18.252.254.13
18.252.254.14
18.252.254.15
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another