154.0.0.0/8

Public

Class B — /8 prefix — 16,777,214 usable hosts

Network Address
154.0.0.0
Broadcast Address
154.255.255.255
Subnet Mask
255.0.0.0
Usable Hosts
16,777,214
First Usable IP
154.0.0.1
Last Usable IP
154.255.255.254
Total IPs
16,777,216
Prefix Length
/8

Network address — the base address of the block (154.0.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 154.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 16,777,214 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.0.0.0 is the dotted-decimal equivalent of /8. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 154.0.0.0/8
Network Address 154.0.0.0
Broadcast Address 154.255.255.255
Subnet Mask 255.0.0.0
Wildcard Mask 0.255.255.255
Prefix Length /8
IP Address Class Class B
Total IP Addresses 16,777,216
Usable Host Addresses 16,777,214
First Usable IP 154.0.0.1
Last Usable IP 154.255.255.254
Network (Hex) 0x9A000000
Broadcast (Hex) 0x9AFFFFFF
Address Type Public / Globally Routable

Binary Representation

Network Address
10011010 10011010.00000000.00000000.00000000
Subnet Mask
11111111.00000000.00000000.00000000

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

Split into Equal Subnets

Split 154.0.0.0/8 into 2 equal /9 subnets (8,388,606 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 154.0.0.0/9 154.0.0.0 154.0.0.1 154.127.255.254 154.127.255.255 8,388,606
2 154.128.0.0/9 154.128.0.0 154.128.0.1 154.255.255.254 154.255.255.255 8,388,606

/8 Subnet Reference

Total IPs 16,777,216
Usable Hosts 16,777,214
Subnet Mask 255.0.0.0
Wildcard 0.255.255.255

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