140.172.65.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
140.172.65.0
Broadcast Address
140.172.65.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
140.172.65.1
Last Usable IP
140.172.65.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (140.172.65.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 140.172.65.31 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 140.172.65.0/27
Network Address 140.172.65.0
Broadcast Address 140.172.65.31
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 140.172.65.1
Last Usable IP 140.172.65.30
Network (Hex) 0x8CAC4100
Broadcast (Hex) 0x8CAC411F
Address Type Public / Globally Routable

Binary Representation

Network Address
10001100.10101100.01000001 10001100.10101100.01000001.00000000
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 140.172.65.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 140.172.65.0/28 140.172.65.0 140.172.65.1 140.172.65.14 140.172.65.15 14
2 140.172.65.16/28 140.172.65.16 140.172.65.17 140.172.65.30 140.172.65.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

140.172.65.0 net
140.172.65.1
140.172.65.2
140.172.65.3
140.172.65.4
140.172.65.5
140.172.65.6
140.172.65.7
140.172.65.8
140.172.65.9
140.172.65.10
140.172.65.11
140.172.65.12
140.172.65.13
140.172.65.14
140.172.65.15
… 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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