13.40.139.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
13.40.139.64
Broadcast Address
13.40.139.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
13.40.139.65
Last Usable IP
13.40.139.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (13.40.139.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 13.40.139.95 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 13.40.139.64/27
Network Address 13.40.139.64
Broadcast Address 13.40.139.95
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 13.40.139.65
Last Usable IP 13.40.139.94
Network (Hex) 0x0D288B40
Broadcast (Hex) 0x0D288B5F
Address Type Public / Globally Routable

Binary Representation

Network Address
00001101.00101000.10001011 00001101.00101000.10001011.01000000
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 13.40.139.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 13.40.139.64/28 13.40.139.64 13.40.139.65 13.40.139.78 13.40.139.79 14
2 13.40.139.80/28 13.40.139.80 13.40.139.81 13.40.139.94 13.40.139.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

13.40.139.64 net
13.40.139.65
13.40.139.66
13.40.139.67
13.40.139.68
13.40.139.69
13.40.139.70
13.40.139.71
13.40.139.72
13.40.139.73
13.40.139.74
13.40.139.75
13.40.139.76
13.40.139.77
13.40.139.78
13.40.139.79
… 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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