121.90.209.0/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (121.90.209.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 121.90.209.63 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 121.90.209.0/26 |
| Network Address | 121.90.209.0 |
| Broadcast Address | 121.90.209.63 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class A |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 121.90.209.1 |
| Last Usable IP | 121.90.209.62 |
| Network (Hex) | 0x795AD100 |
| Broadcast (Hex) | 0x795AD13F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.
Split into Equal Subnets
Split 121.90.209.0/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.90.209.0/27 | 121.90.209.0 | 121.90.209.1 | 121.90.209.30 | 121.90.209.31 | 30 |
| 2 | 121.90.209.32/27 | 121.90.209.32 | 121.90.209.33 | 121.90.209.62 | 121.90.209.63 | 30 |
Split 121.90.209.0/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.90.209.0/28 | 121.90.209.0 | 121.90.209.1 | 121.90.209.14 | 121.90.209.15 | 14 |
| 2 | 121.90.209.16/28 | 121.90.209.16 | 121.90.209.17 | 121.90.209.30 | 121.90.209.31 | 14 |
| 3 | 121.90.209.32/28 | 121.90.209.32 | 121.90.209.33 | 121.90.209.46 | 121.90.209.47 | 14 |
| 4 | 121.90.209.48/28 | 121.90.209.48 | 121.90.209.49 | 121.90.209.62 | 121.90.209.63 | 14 |
Split 121.90.209.0/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.90.209.0/29 | 121.90.209.0 | 121.90.209.1 | 121.90.209.6 | 121.90.209.7 | 6 |
| 2 | 121.90.209.8/29 | 121.90.209.8 | 121.90.209.9 | 121.90.209.14 | 121.90.209.15 | 6 |
| 3 | 121.90.209.16/29 | 121.90.209.16 | 121.90.209.17 | 121.90.209.22 | 121.90.209.23 | 6 |
| 4 | 121.90.209.24/29 | 121.90.209.24 | 121.90.209.25 | 121.90.209.30 | 121.90.209.31 | 6 |
| 5 | 121.90.209.32/29 | 121.90.209.32 | 121.90.209.33 | 121.90.209.38 | 121.90.209.39 | 6 |
| 6 | 121.90.209.40/29 | 121.90.209.40 | 121.90.209.41 | 121.90.209.46 | 121.90.209.47 | 6 |
| 7 | 121.90.209.48/29 | 121.90.209.48 | 121.90.209.49 | 121.90.209.54 | 121.90.209.55 | 6 |
| 8 | 121.90.209.56/29 | 121.90.209.56 | 121.90.209.57 | 121.90.209.62 | 121.90.209.63 | 6 |
Split 121.90.209.0/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.90.209.0/30 | 121.90.209.0 | 121.90.209.1 | 121.90.209.2 | 121.90.209.3 | 2 |
| 2 | 121.90.209.4/30 | 121.90.209.4 | 121.90.209.5 | 121.90.209.6 | 121.90.209.7 | 2 |
| 3 | 121.90.209.8/30 | 121.90.209.8 | 121.90.209.9 | 121.90.209.10 | 121.90.209.11 | 2 |
| 4 | 121.90.209.12/30 | 121.90.209.12 | 121.90.209.13 | 121.90.209.14 | 121.90.209.15 | 2 |
| 5 | 121.90.209.16/30 | 121.90.209.16 | 121.90.209.17 | 121.90.209.18 | 121.90.209.19 | 2 |
| 6 | 121.90.209.20/30 | 121.90.209.20 | 121.90.209.21 | 121.90.209.22 | 121.90.209.23 | 2 |
| 7 | 121.90.209.24/30 | 121.90.209.24 | 121.90.209.25 | 121.90.209.26 | 121.90.209.27 | 2 |
| 8 | 121.90.209.28/30 | 121.90.209.28 | 121.90.209.29 | 121.90.209.30 | 121.90.209.31 | 2 |
| 9 | 121.90.209.32/30 | 121.90.209.32 | 121.90.209.33 | 121.90.209.34 | 121.90.209.35 | 2 |
| 10 | 121.90.209.36/30 | 121.90.209.36 | 121.90.209.37 | 121.90.209.38 | 121.90.209.39 | 2 |
| 11 | 121.90.209.40/30 | 121.90.209.40 | 121.90.209.41 | 121.90.209.42 | 121.90.209.43 | 2 |
| 12 | 121.90.209.44/30 | 121.90.209.44 | 121.90.209.45 | 121.90.209.46 | 121.90.209.47 | 2 |
| 13 | 121.90.209.48/30 | 121.90.209.48 | 121.90.209.49 | 121.90.209.50 | 121.90.209.51 | 2 |
| 14 | 121.90.209.52/30 | 121.90.209.52 | 121.90.209.53 | 121.90.209.54 | 121.90.209.55 | 2 |
| 15 | 121.90.209.56/30 | 121.90.209.56 | 121.90.209.57 | 121.90.209.58 | 121.90.209.59 | 2 |
| 16 | 121.90.209.60/30 | 121.90.209.60 | 121.90.209.61 | 121.90.209.62 | 121.90.209.63 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.