222.243.21.64/26
PublicClass C — /26 prefix — 62 usable hosts
Network address — the base address of the block (222.243.21.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 222.243.21.127 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 | 222.243.21.64/26 |
| Network Address | 222.243.21.64 |
| Broadcast Address | 222.243.21.127 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class C |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 222.243.21.65 |
| Last Usable IP | 222.243.21.126 |
| Network (Hex) | 0xDEF31540 |
| Broadcast (Hex) | 0xDEF3157F |
| 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 222.243.21.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 222.243.21.64/27 | 222.243.21.64 | 222.243.21.65 | 222.243.21.94 | 222.243.21.95 | 30 |
| 2 | 222.243.21.96/27 | 222.243.21.96 | 222.243.21.97 | 222.243.21.126 | 222.243.21.127 | 30 |
Split 222.243.21.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 222.243.21.64/28 | 222.243.21.64 | 222.243.21.65 | 222.243.21.78 | 222.243.21.79 | 14 |
| 2 | 222.243.21.80/28 | 222.243.21.80 | 222.243.21.81 | 222.243.21.94 | 222.243.21.95 | 14 |
| 3 | 222.243.21.96/28 | 222.243.21.96 | 222.243.21.97 | 222.243.21.110 | 222.243.21.111 | 14 |
| 4 | 222.243.21.112/28 | 222.243.21.112 | 222.243.21.113 | 222.243.21.126 | 222.243.21.127 | 14 |
Split 222.243.21.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 222.243.21.64/29 | 222.243.21.64 | 222.243.21.65 | 222.243.21.70 | 222.243.21.71 | 6 |
| 2 | 222.243.21.72/29 | 222.243.21.72 | 222.243.21.73 | 222.243.21.78 | 222.243.21.79 | 6 |
| 3 | 222.243.21.80/29 | 222.243.21.80 | 222.243.21.81 | 222.243.21.86 | 222.243.21.87 | 6 |
| 4 | 222.243.21.88/29 | 222.243.21.88 | 222.243.21.89 | 222.243.21.94 | 222.243.21.95 | 6 |
| 5 | 222.243.21.96/29 | 222.243.21.96 | 222.243.21.97 | 222.243.21.102 | 222.243.21.103 | 6 |
| 6 | 222.243.21.104/29 | 222.243.21.104 | 222.243.21.105 | 222.243.21.110 | 222.243.21.111 | 6 |
| 7 | 222.243.21.112/29 | 222.243.21.112 | 222.243.21.113 | 222.243.21.118 | 222.243.21.119 | 6 |
| 8 | 222.243.21.120/29 | 222.243.21.120 | 222.243.21.121 | 222.243.21.126 | 222.243.21.127 | 6 |
Split 222.243.21.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 222.243.21.64/30 | 222.243.21.64 | 222.243.21.65 | 222.243.21.66 | 222.243.21.67 | 2 |
| 2 | 222.243.21.68/30 | 222.243.21.68 | 222.243.21.69 | 222.243.21.70 | 222.243.21.71 | 2 |
| 3 | 222.243.21.72/30 | 222.243.21.72 | 222.243.21.73 | 222.243.21.74 | 222.243.21.75 | 2 |
| 4 | 222.243.21.76/30 | 222.243.21.76 | 222.243.21.77 | 222.243.21.78 | 222.243.21.79 | 2 |
| 5 | 222.243.21.80/30 | 222.243.21.80 | 222.243.21.81 | 222.243.21.82 | 222.243.21.83 | 2 |
| 6 | 222.243.21.84/30 | 222.243.21.84 | 222.243.21.85 | 222.243.21.86 | 222.243.21.87 | 2 |
| 7 | 222.243.21.88/30 | 222.243.21.88 | 222.243.21.89 | 222.243.21.90 | 222.243.21.91 | 2 |
| 8 | 222.243.21.92/30 | 222.243.21.92 | 222.243.21.93 | 222.243.21.94 | 222.243.21.95 | 2 |
| 9 | 222.243.21.96/30 | 222.243.21.96 | 222.243.21.97 | 222.243.21.98 | 222.243.21.99 | 2 |
| 10 | 222.243.21.100/30 | 222.243.21.100 | 222.243.21.101 | 222.243.21.102 | 222.243.21.103 | 2 |
| 11 | 222.243.21.104/30 | 222.243.21.104 | 222.243.21.105 | 222.243.21.106 | 222.243.21.107 | 2 |
| 12 | 222.243.21.108/30 | 222.243.21.108 | 222.243.21.109 | 222.243.21.110 | 222.243.21.111 | 2 |
| 13 | 222.243.21.112/30 | 222.243.21.112 | 222.243.21.113 | 222.243.21.114 | 222.243.21.115 | 2 |
| 14 | 222.243.21.116/30 | 222.243.21.116 | 222.243.21.117 | 222.243.21.118 | 222.243.21.119 | 2 |
| 15 | 222.243.21.120/30 | 222.243.21.120 | 222.243.21.121 | 222.243.21.122 | 222.243.21.123 | 2 |
| 16 | 222.243.21.124/30 | 222.243.21.124 | 222.243.21.125 | 222.243.21.126 | 222.243.21.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.