28.67.198.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
28.67.198.0
Broadcast Address
28.67.198.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
28.67.198.1
Last Usable IP
28.67.198.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (28.67.198.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 28.67.198.31 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 28.67.198.0/27
Network Address 28.67.198.0
Broadcast Address 28.67.198.31
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 28.67.198.1
Last Usable IP 28.67.198.30
Network (Hex) 0x1C43C600
Broadcast (Hex) 0x1C43C61F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011100.01000011.11000110 00011100.01000011.11000110.00000000
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 28.67.198.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 28.67.198.0/28 28.67.198.0 28.67.198.1 28.67.198.14 28.67.198.15 14
2 28.67.198.16/28 28.67.198.16 28.67.198.17 28.67.198.30 28.67.198.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

28.67.198.0 net
28.67.198.1
28.67.198.2
28.67.198.3
28.67.198.4
28.67.198.5
28.67.198.6
28.67.198.7
28.67.198.8
28.67.198.9
28.67.198.10
28.67.198.11
28.67.198.12
28.67.198.13
28.67.198.14
28.67.198.15
… 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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