243.110.48.0/20
PublicClass E (Reserved) — /20 prefix — 4,094 usable hosts
Network address — the base address of the block (243.110.48.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 243.110.63.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 4,094 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.240.0 is the dotted-decimal equivalent of /20. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 243.110.48.0/20 |
| Network Address | 243.110.48.0 |
| Broadcast Address | 243.110.63.255 |
| Subnet Mask | 255.255.240.0 |
| Wildcard Mask | 0.0.15.255 |
| Prefix Length | /20 |
| IP Address Class | Class E (Reserved) |
| Total IP Addresses | 4,096 |
| Usable Host Addresses | 4,094 |
| First Usable IP | 243.110.48.1 |
| Last Usable IP | 243.110.63.254 |
| Network (Hex) | 0xF36E3000 |
| Broadcast (Hex) | 0xF36E3FFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 20 bits (1s in the mask) identify the network. The remaining 12 bits identify hosts within the network.
Split into Equal Subnets
Split 243.110.48.0/20 into 2 equal /21 subnets (2,046 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 243.110.48.0/21 | 243.110.48.0 | 243.110.48.1 | 243.110.55.254 | 243.110.55.255 | 2,046 |
| 2 | 243.110.56.0/21 | 243.110.56.0 | 243.110.56.1 | 243.110.63.254 | 243.110.63.255 | 2,046 |
Split 243.110.48.0/20 into 4 equal /22 subnets (1,022 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 243.110.48.0/22 | 243.110.48.0 | 243.110.48.1 | 243.110.51.254 | 243.110.51.255 | 1,022 |
| 2 | 243.110.52.0/22 | 243.110.52.0 | 243.110.52.1 | 243.110.55.254 | 243.110.55.255 | 1,022 |
| 3 | 243.110.56.0/22 | 243.110.56.0 | 243.110.56.1 | 243.110.59.254 | 243.110.59.255 | 1,022 |
| 4 | 243.110.60.0/22 | 243.110.60.0 | 243.110.60.1 | 243.110.63.254 | 243.110.63.255 | 1,022 |
Split 243.110.48.0/20 into 8 equal /23 subnets (510 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 243.110.48.0/23 | 243.110.48.0 | 243.110.48.1 | 243.110.49.254 | 243.110.49.255 | 510 |
| 2 | 243.110.50.0/23 | 243.110.50.0 | 243.110.50.1 | 243.110.51.254 | 243.110.51.255 | 510 |
| 3 | 243.110.52.0/23 | 243.110.52.0 | 243.110.52.1 | 243.110.53.254 | 243.110.53.255 | 510 |
| 4 | 243.110.54.0/23 | 243.110.54.0 | 243.110.54.1 | 243.110.55.254 | 243.110.55.255 | 510 |
| 5 | 243.110.56.0/23 | 243.110.56.0 | 243.110.56.1 | 243.110.57.254 | 243.110.57.255 | 510 |
| 6 | 243.110.58.0/23 | 243.110.58.0 | 243.110.58.1 | 243.110.59.254 | 243.110.59.255 | 510 |
| 7 | 243.110.60.0/23 | 243.110.60.0 | 243.110.60.1 | 243.110.61.254 | 243.110.61.255 | 510 |
| 8 | 243.110.62.0/23 | 243.110.62.0 | 243.110.62.1 | 243.110.63.254 | 243.110.63.255 | 510 |
Split 243.110.48.0/20 into 16 equal /24 subnets (254 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 243.110.48.0/24 | 243.110.48.0 | 243.110.48.1 | 243.110.48.254 | 243.110.48.255 | 254 |
| 2 | 243.110.49.0/24 | 243.110.49.0 | 243.110.49.1 | 243.110.49.254 | 243.110.49.255 | 254 |
| 3 | 243.110.50.0/24 | 243.110.50.0 | 243.110.50.1 | 243.110.50.254 | 243.110.50.255 | 254 |
| 4 | 243.110.51.0/24 | 243.110.51.0 | 243.110.51.1 | 243.110.51.254 | 243.110.51.255 | 254 |
| 5 | 243.110.52.0/24 | 243.110.52.0 | 243.110.52.1 | 243.110.52.254 | 243.110.52.255 | 254 |
| 6 | 243.110.53.0/24 | 243.110.53.0 | 243.110.53.1 | 243.110.53.254 | 243.110.53.255 | 254 |
| 7 | 243.110.54.0/24 | 243.110.54.0 | 243.110.54.1 | 243.110.54.254 | 243.110.54.255 | 254 |
| 8 | 243.110.55.0/24 | 243.110.55.0 | 243.110.55.1 | 243.110.55.254 | 243.110.55.255 | 254 |
| 9 | 243.110.56.0/24 | 243.110.56.0 | 243.110.56.1 | 243.110.56.254 | 243.110.56.255 | 254 |
| 10 | 243.110.57.0/24 | 243.110.57.0 | 243.110.57.1 | 243.110.57.254 | 243.110.57.255 | 254 |
| 11 | 243.110.58.0/24 | 243.110.58.0 | 243.110.58.1 | 243.110.58.254 | 243.110.58.255 | 254 |
| 12 | 243.110.59.0/24 | 243.110.59.0 | 243.110.59.1 | 243.110.59.254 | 243.110.59.255 | 254 |
| 13 | 243.110.60.0/24 | 243.110.60.0 | 243.110.60.1 | 243.110.60.254 | 243.110.60.255 | 254 |
| 14 | 243.110.61.0/24 | 243.110.61.0 | 243.110.61.1 | 243.110.61.254 | 243.110.61.255 | 254 |
| 15 | 243.110.62.0/24 | 243.110.62.0 | 243.110.62.1 | 243.110.62.254 | 243.110.62.255 | 254 |
| 16 | 243.110.63.0/24 | 243.110.63.0 | 243.110.63.1 | 243.110.63.254 | 243.110.63.255 | 254 |