IPRangeExplorer

159.239.100.0/23

Public

Class B — /23 prefix — 510 usable hosts

Network Address
159.239.100.0
Broadcast Address
159.239.101.255
Subnet Mask
255.255.254.0
Usable Hosts
510
First Usable IP
159.239.100.1
Last Usable IP
159.239.101.254
Total IPs
512
Prefix Length
/23

Network address — the base address of the block (159.239.100.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 159.239.101.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 510 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask — 255.255.254.0 is the dotted-decimal equivalent of /23. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 159.239.100.0/23
Network Address 159.239.100.0
Broadcast Address 159.239.101.255
Subnet Mask 255.255.254.0
Wildcard Mask 0.0.1.255
Prefix Length /23
IP Address Class Class B
Total IP Addresses 512
Usable Host Addresses 510
First Usable IP 159.239.100.1
Last Usable IP 159.239.101.254
Network (Hex) 0x9FEF6400
Broadcast (Hex) 0x9FEF65FF
Address Type Public / Globally Routable

Binary Representation

Network Address
10011111.11101111 10011111.11101111.01100100.00000000
Subnet Mask
11111111.11111111.11111110.00000000

The first 23 bits (1s in the mask) identify the network. The remaining 9 bits identify hosts within the network.

Split into Equal Subnets

Split 159.239.100.0/23 into 2 equal /24 subnets (254 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 159.239.100.0/24 159.239.100.0 159.239.100.1 159.239.100.254 159.239.100.255 254
2 159.239.101.0/24 159.239.101.0 159.239.101.1 159.239.101.254 159.239.101.255 254

/23 Subnet Reference

Total IPs 512
Usable Hosts 510
Subnet Mask 255.255.254.0
Wildcard 0.0.1.255
Full /23 reference →

Related Ranges

Parent /22 block 159.239.100.0/22 Sibling /23 block 159.239.102.0/23

Adjacent Prefix Sizes

/21 2,046 hosts /22 1,022 hosts /23 510 hosts /24 254 hosts /25 126 hosts

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