143.204.10.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
143.204.10.0
Broadcast Address
143.204.10.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
143.204.10.1
Last Usable IP
143.204.10.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (143.204.10.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 143.204.10.31 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 143.204.10.0/27
Network Address 143.204.10.0
Broadcast Address 143.204.10.31
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 143.204.10.1
Last Usable IP 143.204.10.30
Network (Hex) 0x8FCC0A00
Broadcast (Hex) 0x8FCC0A1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10001111.11001100.00001010 10001111.11001100.00001010.00000000
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 143.204.10.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 143.204.10.0/28 143.204.10.0 143.204.10.1 143.204.10.14 143.204.10.15 14
2 143.204.10.16/28 143.204.10.16 143.204.10.17 143.204.10.30 143.204.10.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

143.204.10.0 net
143.204.10.1
143.204.10.2
143.204.10.3
143.204.10.4
143.204.10.5
143.204.10.6
143.204.10.7
143.204.10.8
143.204.10.9
143.204.10.10
143.204.10.11
143.204.10.12
143.204.10.13
143.204.10.14
143.204.10.15
… 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