255.210.173.64/27

Public

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

Network Address
255.210.173.64
Broadcast Address
255.210.173.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
255.210.173.65
Last Usable IP
255.210.173.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (255.210.173.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 255.210.173.95 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 255.210.173.64/27
Network Address 255.210.173.64
Broadcast Address 255.210.173.95
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 255.210.173.65
Last Usable IP 255.210.173.94
Network (Hex) 0xFFD2AD40
Broadcast (Hex) 0xFFD2AD5F
Address Type Public / Globally Routable

Binary Representation

Network Address
11111111.11010010.10101101 11111111.11010010.10101101.01000000
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 255.210.173.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 255.210.173.64/28 255.210.173.64 255.210.173.65 255.210.173.78 255.210.173.79 14
2 255.210.173.80/28 255.210.173.80 255.210.173.81 255.210.173.94 255.210.173.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

255.210.173.64 net
255.210.173.65
255.210.173.66
255.210.173.67
255.210.173.68
255.210.173.69
255.210.173.70
255.210.173.71
255.210.173.72
255.210.173.73
255.210.173.74
255.210.173.75
255.210.173.76
255.210.173.77
255.210.173.78
255.210.173.79
… 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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