121.4.246.64/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (121.4.246.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 121.4.246.127 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 | 121.4.246.64/26 |
| Network Address | 121.4.246.64 |
| Broadcast Address | 121.4.246.127 |
| 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 | 121.4.246.65 |
| Last Usable IP | 121.4.246.126 |
| Network (Hex) | 0x7904F640 |
| Broadcast (Hex) | 0x7904F67F |
| 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 121.4.246.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.4.246.64/27 | 121.4.246.64 | 121.4.246.65 | 121.4.246.94 | 121.4.246.95 | 30 |
| 2 | 121.4.246.96/27 | 121.4.246.96 | 121.4.246.97 | 121.4.246.126 | 121.4.246.127 | 30 |
Split 121.4.246.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.4.246.64/28 | 121.4.246.64 | 121.4.246.65 | 121.4.246.78 | 121.4.246.79 | 14 |
| 2 | 121.4.246.80/28 | 121.4.246.80 | 121.4.246.81 | 121.4.246.94 | 121.4.246.95 | 14 |
| 3 | 121.4.246.96/28 | 121.4.246.96 | 121.4.246.97 | 121.4.246.110 | 121.4.246.111 | 14 |
| 4 | 121.4.246.112/28 | 121.4.246.112 | 121.4.246.113 | 121.4.246.126 | 121.4.246.127 | 14 |
Split 121.4.246.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.4.246.64/29 | 121.4.246.64 | 121.4.246.65 | 121.4.246.70 | 121.4.246.71 | 6 |
| 2 | 121.4.246.72/29 | 121.4.246.72 | 121.4.246.73 | 121.4.246.78 | 121.4.246.79 | 6 |
| 3 | 121.4.246.80/29 | 121.4.246.80 | 121.4.246.81 | 121.4.246.86 | 121.4.246.87 | 6 |
| 4 | 121.4.246.88/29 | 121.4.246.88 | 121.4.246.89 | 121.4.246.94 | 121.4.246.95 | 6 |
| 5 | 121.4.246.96/29 | 121.4.246.96 | 121.4.246.97 | 121.4.246.102 | 121.4.246.103 | 6 |
| 6 | 121.4.246.104/29 | 121.4.246.104 | 121.4.246.105 | 121.4.246.110 | 121.4.246.111 | 6 |
| 7 | 121.4.246.112/29 | 121.4.246.112 | 121.4.246.113 | 121.4.246.118 | 121.4.246.119 | 6 |
| 8 | 121.4.246.120/29 | 121.4.246.120 | 121.4.246.121 | 121.4.246.126 | 121.4.246.127 | 6 |
Split 121.4.246.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 121.4.246.64/30 | 121.4.246.64 | 121.4.246.65 | 121.4.246.66 | 121.4.246.67 | 2 |
| 2 | 121.4.246.68/30 | 121.4.246.68 | 121.4.246.69 | 121.4.246.70 | 121.4.246.71 | 2 |
| 3 | 121.4.246.72/30 | 121.4.246.72 | 121.4.246.73 | 121.4.246.74 | 121.4.246.75 | 2 |
| 4 | 121.4.246.76/30 | 121.4.246.76 | 121.4.246.77 | 121.4.246.78 | 121.4.246.79 | 2 |
| 5 | 121.4.246.80/30 | 121.4.246.80 | 121.4.246.81 | 121.4.246.82 | 121.4.246.83 | 2 |
| 6 | 121.4.246.84/30 | 121.4.246.84 | 121.4.246.85 | 121.4.246.86 | 121.4.246.87 | 2 |
| 7 | 121.4.246.88/30 | 121.4.246.88 | 121.4.246.89 | 121.4.246.90 | 121.4.246.91 | 2 |
| 8 | 121.4.246.92/30 | 121.4.246.92 | 121.4.246.93 | 121.4.246.94 | 121.4.246.95 | 2 |
| 9 | 121.4.246.96/30 | 121.4.246.96 | 121.4.246.97 | 121.4.246.98 | 121.4.246.99 | 2 |
| 10 | 121.4.246.100/30 | 121.4.246.100 | 121.4.246.101 | 121.4.246.102 | 121.4.246.103 | 2 |
| 11 | 121.4.246.104/30 | 121.4.246.104 | 121.4.246.105 | 121.4.246.106 | 121.4.246.107 | 2 |
| 12 | 121.4.246.108/30 | 121.4.246.108 | 121.4.246.109 | 121.4.246.110 | 121.4.246.111 | 2 |
| 13 | 121.4.246.112/30 | 121.4.246.112 | 121.4.246.113 | 121.4.246.114 | 121.4.246.115 | 2 |
| 14 | 121.4.246.116/30 | 121.4.246.116 | 121.4.246.117 | 121.4.246.118 | 121.4.246.119 | 2 |
| 15 | 121.4.246.120/30 | 121.4.246.120 | 121.4.246.121 | 121.4.246.122 | 121.4.246.123 | 2 |
| 16 | 121.4.246.124/30 | 121.4.246.124 | 121.4.246.125 | 121.4.246.126 | 121.4.246.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.