201.100.228.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
201.100.228.64
Broadcast Address
201.100.228.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
201.100.228.65
Last Usable IP
201.100.228.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (201.100.228.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 201.100.228.95 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 201.100.228.64/27
Network Address 201.100.228.64
Broadcast Address 201.100.228.95
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 201.100.228.65
Last Usable IP 201.100.228.94
Network (Hex) 0xC964E440
Broadcast (Hex) 0xC964E45F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001001.01100100.11100100 11001001.01100100.11100100.01000000
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 201.100.228.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 201.100.228.64/28 201.100.228.64 201.100.228.65 201.100.228.78 201.100.228.79 14
2 201.100.228.80/28 201.100.228.80 201.100.228.81 201.100.228.94 201.100.228.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

201.100.228.64 net
201.100.228.65
201.100.228.66
201.100.228.67
201.100.228.68
201.100.228.69
201.100.228.70
201.100.228.71
201.100.228.72
201.100.228.73
201.100.228.74
201.100.228.75
201.100.228.76
201.100.228.77
201.100.228.78
201.100.228.79
… 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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