24.0.0.0/5
PublicClass A — /5 prefix — 134,217,726 usable hosts
Network address — the base address of the block (24.0.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 31.255.255.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 134,217,726 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 248.0.0.0 is the dotted-decimal equivalent of /5. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 24.0.0.0/5 |
| Network Address | 24.0.0.0 |
| Broadcast Address | 31.255.255.255 |
| Subnet Mask | 248.0.0.0 |
| Wildcard Mask | 7.255.255.255 |
| Prefix Length | /5 |
| IP Address Class | Class A |
| Total IP Addresses | 134,217,728 |
| Usable Host Addresses | 134,217,726 |
| First Usable IP | 24.0.0.1 |
| Last Usable IP | 31.255.255.254 |
| Network (Hex) | 0x18000000 |
| Broadcast (Hex) | 0x1FFFFFFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 5 bits (1s in the mask) identify the network. The remaining 27 bits identify hosts within the network.
Split into Equal Subnets
Split 24.0.0.0/5 into 2 equal /6 subnets (67,108,862 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 24.0.0.0/6 | 24.0.0.0 | 24.0.0.1 | 27.255.255.254 | 27.255.255.255 | 67,108,862 |
| 2 | 28.0.0.0/6 | 28.0.0.0 | 28.0.0.1 | 31.255.255.254 | 31.255.255.255 | 67,108,862 |
Split 24.0.0.0/5 into 4 equal /7 subnets (33,554,430 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 24.0.0.0/7 | 24.0.0.0 | 24.0.0.1 | 25.255.255.254 | 25.255.255.255 | 33,554,430 |
| 2 | 26.0.0.0/7 | 26.0.0.0 | 26.0.0.1 | 27.255.255.254 | 27.255.255.255 | 33,554,430 |
| 3 | 28.0.0.0/7 | 28.0.0.0 | 28.0.0.1 | 29.255.255.254 | 29.255.255.255 | 33,554,430 |
| 4 | 30.0.0.0/7 | 30.0.0.0 | 30.0.0.1 | 31.255.255.254 | 31.255.255.255 | 33,554,430 |
Split 24.0.0.0/5 into 8 equal /8 subnets (16,777,214 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 24.0.0.0/8 | 24.0.0.0 | 24.0.0.1 | 24.255.255.254 | 24.255.255.255 | 16,777,214 |
| 2 | 25.0.0.0/8 | 25.0.0.0 | 25.0.0.1 | 25.255.255.254 | 25.255.255.255 | 16,777,214 |
| 3 | 26.0.0.0/8 | 26.0.0.0 | 26.0.0.1 | 26.255.255.254 | 26.255.255.255 | 16,777,214 |
| 4 | 27.0.0.0/8 | 27.0.0.0 | 27.0.0.1 | 27.255.255.254 | 27.255.255.255 | 16,777,214 |
| 5 | 28.0.0.0/8 | 28.0.0.0 | 28.0.0.1 | 28.255.255.254 | 28.255.255.255 | 16,777,214 |
| 6 | 29.0.0.0/8 | 29.0.0.0 | 29.0.0.1 | 29.255.255.254 | 29.255.255.255 | 16,777,214 |
| 7 | 30.0.0.0/8 | 30.0.0.0 | 30.0.0.1 | 30.255.255.254 | 30.255.255.255 | 16,777,214 |
| 8 | 31.0.0.0/8 | 31.0.0.0 | 31.0.0.1 | 31.255.255.254 | 31.255.255.255 | 16,777,214 |
Split 24.0.0.0/5 into 16 equal /9 subnets (8,388,606 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 24.0.0.0/9 | 24.0.0.0 | 24.0.0.1 | 24.127.255.254 | 24.127.255.255 | 8,388,606 |
| 2 | 24.128.0.0/9 | 24.128.0.0 | 24.128.0.1 | 24.255.255.254 | 24.255.255.255 | 8,388,606 |
| 3 | 25.0.0.0/9 | 25.0.0.0 | 25.0.0.1 | 25.127.255.254 | 25.127.255.255 | 8,388,606 |
| 4 | 25.128.0.0/9 | 25.128.0.0 | 25.128.0.1 | 25.255.255.254 | 25.255.255.255 | 8,388,606 |
| 5 | 26.0.0.0/9 | 26.0.0.0 | 26.0.0.1 | 26.127.255.254 | 26.127.255.255 | 8,388,606 |
| 6 | 26.128.0.0/9 | 26.128.0.0 | 26.128.0.1 | 26.255.255.254 | 26.255.255.255 | 8,388,606 |
| 7 | 27.0.0.0/9 | 27.0.0.0 | 27.0.0.1 | 27.127.255.254 | 27.127.255.255 | 8,388,606 |
| 8 | 27.128.0.0/9 | 27.128.0.0 | 27.128.0.1 | 27.255.255.254 | 27.255.255.255 | 8,388,606 |
| 9 | 28.0.0.0/9 | 28.0.0.0 | 28.0.0.1 | 28.127.255.254 | 28.127.255.255 | 8,388,606 |
| 10 | 28.128.0.0/9 | 28.128.0.0 | 28.128.0.1 | 28.255.255.254 | 28.255.255.255 | 8,388,606 |
| 11 | 29.0.0.0/9 | 29.0.0.0 | 29.0.0.1 | 29.127.255.254 | 29.127.255.255 | 8,388,606 |
| 12 | 29.128.0.0/9 | 29.128.0.0 | 29.128.0.1 | 29.255.255.254 | 29.255.255.255 | 8,388,606 |
| 13 | 30.0.0.0/9 | 30.0.0.0 | 30.0.0.1 | 30.127.255.254 | 30.127.255.255 | 8,388,606 |
| 14 | 30.128.0.0/9 | 30.128.0.0 | 30.128.0.1 | 30.255.255.254 | 30.255.255.255 | 8,388,606 |
| 15 | 31.0.0.0/9 | 31.0.0.0 | 31.0.0.1 | 31.127.255.254 | 31.127.255.255 | 8,388,606 |
| 16 | 31.128.0.0/9 | 31.128.0.0 | 31.128.0.1 | 31.255.255.254 | 31.255.255.255 | 8,388,606 |