203.85.205.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
203.85.205.64
Broadcast Address
203.85.205.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
203.85.205.65
Last Usable IP
203.85.205.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (203.85.205.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 203.85.205.95 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 203.85.205.64/27
Network Address 203.85.205.64
Broadcast Address 203.85.205.95
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 203.85.205.65
Last Usable IP 203.85.205.94
Network (Hex) 0xCB55CD40
Broadcast (Hex) 0xCB55CD5F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001011.01010101.11001101 11001011.01010101.11001101.01000000
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 203.85.205.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 203.85.205.64/28 203.85.205.64 203.85.205.65 203.85.205.78 203.85.205.79 14
2 203.85.205.80/28 203.85.205.80 203.85.205.81 203.85.205.94 203.85.205.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

203.85.205.64 net
203.85.205.65
203.85.205.66
203.85.205.67
203.85.205.68
203.85.205.69
203.85.205.70
203.85.205.71
203.85.205.72
203.85.205.73
203.85.205.74
203.85.205.75
203.85.205.76
203.85.205.77
203.85.205.78
203.85.205.79
… 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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