203.6.216.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
203.6.216.64
Broadcast Address
203.6.216.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
203.6.216.65
Last Usable IP
203.6.216.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (203.6.216.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 203.6.216.95 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 203.6.216.64/27
Network Address 203.6.216.64
Broadcast Address 203.6.216.95
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 203.6.216.65
Last Usable IP 203.6.216.94
Network (Hex) 0xCB06D840
Broadcast (Hex) 0xCB06D85F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001011.00000110.11011000 11001011.00000110.11011000.01000000
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 203.6.216.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 203.6.216.64/28 203.6.216.64 203.6.216.65 203.6.216.78 203.6.216.79 14
2 203.6.216.80/28 203.6.216.80 203.6.216.81 203.6.216.94 203.6.216.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

203.6.216.64 net
203.6.216.65
203.6.216.66
203.6.216.67
203.6.216.68
203.6.216.69
203.6.216.70
203.6.216.71
203.6.216.72
203.6.216.73
203.6.216.74
203.6.216.75
203.6.216.76
203.6.216.77
203.6.216.78
203.6.216.79
… 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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