173.13.137.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
173.13.137.64
Broadcast Address
173.13.137.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
173.13.137.65
Last Usable IP
173.13.137.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (173.13.137.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 173.13.137.95 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 173.13.137.64/27
Network Address 173.13.137.64
Broadcast Address 173.13.137.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 173.13.137.65
Last Usable IP 173.13.137.94
Network (Hex) 0xAD0D8940
Broadcast (Hex) 0xAD0D895F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101101.00001101.10001001 10101101.00001101.10001001.01000000
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 173.13.137.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 173.13.137.64/28 173.13.137.64 173.13.137.65 173.13.137.78 173.13.137.79 14
2 173.13.137.80/28 173.13.137.80 173.13.137.81 173.13.137.94 173.13.137.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

173.13.137.64 net
173.13.137.65
173.13.137.66
173.13.137.67
173.13.137.68
173.13.137.69
173.13.137.70
173.13.137.71
173.13.137.72
173.13.137.73
173.13.137.74
173.13.137.75
173.13.137.76
173.13.137.77
173.13.137.78
173.13.137.79
… 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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