40.65.39.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
40.65.39.0
Broadcast Address
40.65.39.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
40.65.39.1
Last Usable IP
40.65.39.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (40.65.39.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 40.65.39.31 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 40.65.39.0/27
Network Address 40.65.39.0
Broadcast Address 40.65.39.31
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 40.65.39.1
Last Usable IP 40.65.39.30
Network (Hex) 0x28412700
Broadcast (Hex) 0x2841271F
Address Type Public / Globally Routable

Binary Representation

Network Address
00101000.01000001.00100111 00101000.01000001.00100111.00000000
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 40.65.39.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 40.65.39.0/28 40.65.39.0 40.65.39.1 40.65.39.14 40.65.39.15 14
2 40.65.39.16/28 40.65.39.16 40.65.39.17 40.65.39.30 40.65.39.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

40.65.39.0 net
40.65.39.1
40.65.39.2
40.65.39.3
40.65.39.4
40.65.39.5
40.65.39.6
40.65.39.7
40.65.39.8
40.65.39.9
40.65.39.10
40.65.39.11
40.65.39.12
40.65.39.13
40.65.39.14
40.65.39.15
… 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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