172.69.78.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
172.69.78.0
Broadcast Address
172.69.78.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
172.69.78.1
Last Usable IP
172.69.78.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (172.69.78.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 172.69.78.31 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 172.69.78.0/27
Network Address 172.69.78.0
Broadcast Address 172.69.78.31
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 172.69.78.1
Last Usable IP 172.69.78.30
Network (Hex) 0xAC454E00
Broadcast (Hex) 0xAC454E1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101100.01000101.01001110 10101100.01000101.01001110.00000000
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 172.69.78.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 172.69.78.0/28 172.69.78.0 172.69.78.1 172.69.78.14 172.69.78.15 14
2 172.69.78.16/28 172.69.78.16 172.69.78.17 172.69.78.30 172.69.78.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

172.69.78.0 net
172.69.78.1
172.69.78.2
172.69.78.3
172.69.78.4
172.69.78.5
172.69.78.6
172.69.78.7
172.69.78.8
172.69.78.9
172.69.78.10
172.69.78.11
172.69.78.12
172.69.78.13
172.69.78.14
172.69.78.15
… 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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