121.4.226.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
121.4.226.0
Broadcast Address
121.4.226.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
121.4.226.1
Last Usable IP
121.4.226.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (121.4.226.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 121.4.226.31 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 121.4.226.0/27
Network Address 121.4.226.0
Broadcast Address 121.4.226.31
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 121.4.226.1
Last Usable IP 121.4.226.30
Network (Hex) 0x7904E200
Broadcast (Hex) 0x7904E21F
Address Type Public / Globally Routable

Binary Representation

Network Address
01111001.00000100.11100010 01111001.00000100.11100010.00000000
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 121.4.226.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 121.4.226.0/28 121.4.226.0 121.4.226.1 121.4.226.14 121.4.226.15 14
2 121.4.226.16/28 121.4.226.16 121.4.226.17 121.4.226.30 121.4.226.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

121.4.226.0 net
121.4.226.1
121.4.226.2
121.4.226.3
121.4.226.4
121.4.226.5
121.4.226.6
121.4.226.7
121.4.226.8
121.4.226.9
121.4.226.10
121.4.226.11
121.4.226.12
121.4.226.13
121.4.226.14
121.4.226.15
… 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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