131.2.203.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
131.2.203.0
Broadcast Address
131.2.203.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
131.2.203.1
Last Usable IP
131.2.203.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (131.2.203.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 131.2.203.31 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 131.2.203.0/27
Network Address 131.2.203.0
Broadcast Address 131.2.203.31
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 131.2.203.1
Last Usable IP 131.2.203.30
Network (Hex) 0x8302CB00
Broadcast (Hex) 0x8302CB1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000011.00000010.11001011 10000011.00000010.11001011.00000000
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 131.2.203.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 131.2.203.0/28 131.2.203.0 131.2.203.1 131.2.203.14 131.2.203.15 14
2 131.2.203.16/28 131.2.203.16 131.2.203.17 131.2.203.30 131.2.203.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

131.2.203.0 net
131.2.203.1
131.2.203.2
131.2.203.3
131.2.203.4
131.2.203.5
131.2.203.6
131.2.203.7
131.2.203.8
131.2.203.9
131.2.203.10
131.2.203.11
131.2.203.12
131.2.203.13
131.2.203.14
131.2.203.15
… 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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