205.251.250.128/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
205.251.250.128
Broadcast Address
205.251.250.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
205.251.250.129
Last Usable IP
205.251.250.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (205.251.250.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 205.251.250.159 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 205.251.250.128/27
Network Address 205.251.250.128
Broadcast Address 205.251.250.159
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 205.251.250.129
Last Usable IP 205.251.250.158
Network (Hex) 0xCDFBFA80
Broadcast (Hex) 0xCDFBFA9F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001101.11111011.11111010 11001101.11111011.11111010.10000000
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 205.251.250.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 205.251.250.128/28 205.251.250.128 205.251.250.129 205.251.250.142 205.251.250.143 14
2 205.251.250.144/28 205.251.250.144 205.251.250.145 205.251.250.158 205.251.250.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

205.251.250.128 net
205.251.250.129
205.251.250.130
205.251.250.131
205.251.250.132
205.251.250.133
205.251.250.134
205.251.250.135
205.251.250.136
205.251.250.137
205.251.250.138
205.251.250.139
205.251.250.140
205.251.250.141
205.251.250.142
205.251.250.143
… 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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