223.166.2.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
223.166.2.64
Broadcast Address
223.166.2.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
223.166.2.65
Last Usable IP
223.166.2.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (223.166.2.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 223.166.2.95 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 223.166.2.64/27
Network Address 223.166.2.64
Broadcast Address 223.166.2.95
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 223.166.2.65
Last Usable IP 223.166.2.94
Network (Hex) 0xDFA60240
Broadcast (Hex) 0xDFA6025F
Address Type Public / Globally Routable

Binary Representation

Network Address
11011111.10100110.00000010 11011111.10100110.00000010.01000000
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 223.166.2.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 223.166.2.64/28 223.166.2.64 223.166.2.65 223.166.2.78 223.166.2.79 14
2 223.166.2.80/28 223.166.2.80 223.166.2.81 223.166.2.94 223.166.2.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

223.166.2.64 net
223.166.2.65
223.166.2.66
223.166.2.67
223.166.2.68
223.166.2.69
223.166.2.70
223.166.2.71
223.166.2.72
223.166.2.73
223.166.2.74
223.166.2.75
223.166.2.76
223.166.2.77
223.166.2.78
223.166.2.79
… 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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