205.251.203.0/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
205.251.203.0
Broadcast Address
205.251.203.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
205.251.203.1
Last Usable IP
205.251.203.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (205.251.203.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 205.251.203.31 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 205.251.203.0/27
Network Address 205.251.203.0
Broadcast Address 205.251.203.31
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class C
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 205.251.203.1
Last Usable IP 205.251.203.30
Network (Hex) 0xCDFBCB00
Broadcast (Hex) 0xCDFBCB1F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001101.11111011.11001011 11001101.11111011.11001011.00000000
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.

Subnet Breakdown — splitting into /28

This /27 block can be divided into 2 /28 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
205.251.203.0/28 205.251.203.0 205.251.203.15 205.251.203.1 205.251.203.14 14
205.251.203.16/28 205.251.203.16 205.251.203.31 205.251.203.17 205.251.203.30 14

IP Address Sample

Showing first 16 of 32 total IPs.

205.251.203.0 net
205.251.203.1
205.251.203.2
205.251.203.3
205.251.203.4
205.251.203.5
205.251.203.6
205.251.203.7
205.251.203.8
205.251.203.9
205.251.203.10
205.251.203.11
205.251.203.12
205.251.203.13
205.251.203.14
205.251.203.15
… 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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