255.221.13.32/27

Public

Class E (Reserved) — /27 prefix — 30 usable hosts

Network Address
255.221.13.32
Broadcast Address
255.221.13.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
255.221.13.33
Last Usable IP
255.221.13.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (255.221.13.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 255.221.13.63 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 255.221.13.32/27
Network Address 255.221.13.32
Broadcast Address 255.221.13.63
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class E (Reserved)
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 255.221.13.33
Last Usable IP 255.221.13.62
Network (Hex) 0xFFDD0D20
Broadcast (Hex) 0xFFDD0D3F
Address Type Public / Globally Routable

Binary Representation

Network Address
11111111.11011101.00001101 11111111.11011101.00001101.00100000
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 255.221.13.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 255.221.13.32/28 255.221.13.32 255.221.13.33 255.221.13.46 255.221.13.47 14
2 255.221.13.48/28 255.221.13.48 255.221.13.49 255.221.13.62 255.221.13.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

255.221.13.32 net
255.221.13.33
255.221.13.34
255.221.13.35
255.221.13.36
255.221.13.37
255.221.13.38
255.221.13.39
255.221.13.40
255.221.13.41
255.221.13.42
255.221.13.43
255.221.13.44
255.221.13.45
255.221.13.46
255.221.13.47
… 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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