54.65.209.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
54.65.209.64
Broadcast Address
54.65.209.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
54.65.209.65
Last Usable IP
54.65.209.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (54.65.209.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 54.65.209.95 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 54.65.209.64/27
Network Address 54.65.209.64
Broadcast Address 54.65.209.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class A
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 54.65.209.65
Last Usable IP 54.65.209.94
Network (Hex) 0x3641D140
Broadcast (Hex) 0x3641D15F
Address Type Public / Globally Routable

Binary Representation

Network Address
00110110.01000001.11010001 00110110.01000001.11010001.01000000
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 54.65.209.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 54.65.209.64/28 54.65.209.64 54.65.209.65 54.65.209.78 54.65.209.79 14
2 54.65.209.80/28 54.65.209.80 54.65.209.81 54.65.209.94 54.65.209.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

54.65.209.64 net
54.65.209.65
54.65.209.66
54.65.209.67
54.65.209.68
54.65.209.69
54.65.209.70
54.65.209.71
54.65.209.72
54.65.209.73
54.65.209.74
54.65.209.75
54.65.209.76
54.65.209.77
54.65.209.78
54.65.209.79
… 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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