IPRangeExplorer

2.9.40.0/24

Public

Class A — /24 prefix — 254 usable hosts

Network Address
2.9.40.0
Broadcast Address
2.9.40.255
Subnet Mask
255.255.255.0
Usable Hosts
254
First Usable IP
2.9.40.1
Last Usable IP
2.9.40.254
Total IPs
256
Prefix Length
/24

Network address — the base address of the block (2.9.40.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 2.9.40.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 254 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.255.0 is the dotted-decimal equivalent of /24. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 2.9.40.0/24
Network Address 2.9.40.0
Broadcast Address 2.9.40.255
Subnet Mask 255.255.255.0
Wildcard Mask 0.0.0.255
Prefix Length /24
IP Address Class Class A
Total IP Addresses 256
Usable Host Addresses 254
First Usable IP 2.9.40.1
Last Usable IP 2.9.40.254
Network (Hex) 0x02092800
Broadcast (Hex) 0x020928FF
Address Type Public / Globally Routable

Binary Representation

Network Address
00000010.00001001.00101000 00000010.00001001.00101000.00000000
Subnet Mask
11111111.11111111.11111111.00000000

The first 24 bits (1s in the mask) identify the network. The remaining 8 bits identify hosts within the network.

Split into Equal Subnets

Split 2.9.40.0/24 into 2 equal /25 subnets (126 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 2.9.40.0/25 2.9.40.0 2.9.40.1 2.9.40.126 2.9.40.127 126
2 2.9.40.128/25 2.9.40.128 2.9.40.129 2.9.40.254 2.9.40.255 126

IP Address Sample

Showing first 16 of 256 total IPs.

2.9.40.0 net
2.9.40.1
2.9.40.2
2.9.40.3
2.9.40.4
2.9.40.5
2.9.40.6
2.9.40.7
2.9.40.8
2.9.40.9
2.9.40.10
2.9.40.11
2.9.40.12
2.9.40.13
2.9.40.14
2.9.40.15
… 240 more IPs …

/24 Subnet Reference

Total IPs 256
Usable Hosts 254
Subnet Mask 255.255.255.0
Wildcard 0.0.0.255
Full /24 reference →

Related Ranges

Parent /23 block 2.9.40.0/23 Sibling /24 block 2.9.41.0/24

Adjacent Prefix Sizes

/22 1,022 hosts /23 510 hosts /24 254 hosts /25 126 hosts /26 62 hosts

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