172.30.209.64/26
Private (RFC 1918) RFC 1918Class B — /26 prefix — 62 usable hosts
Network address — the base address of the block (172.30.209.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 172.30.209.127 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 | 172.30.209.64/26 |
| Network Address | 172.30.209.64 |
| Broadcast Address | 172.30.209.127 |
| Subnet Mask | 255.255.255.192 |
| Wildcard Mask | 0.0.0.63 |
| Prefix Length | /26 |
| IP Address Class | Class B |
| Total IP Addresses | 64 |
| Usable Host Addresses | 62 |
| First Usable IP | 172.30.209.65 |
| Last Usable IP | 172.30.209.126 |
| Network (Hex) | 0xAC1ED140 |
| Broadcast (Hex) | 0xAC1ED17F |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
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 172.30.209.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.30.209.64/27 | 172.30.209.64 | 172.30.209.65 | 172.30.209.94 | 172.30.209.95 | 30 |
| 2 | 172.30.209.96/27 | 172.30.209.96 | 172.30.209.97 | 172.30.209.126 | 172.30.209.127 | 30 |
Split 172.30.209.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.30.209.64/28 | 172.30.209.64 | 172.30.209.65 | 172.30.209.78 | 172.30.209.79 | 14 |
| 2 | 172.30.209.80/28 | 172.30.209.80 | 172.30.209.81 | 172.30.209.94 | 172.30.209.95 | 14 |
| 3 | 172.30.209.96/28 | 172.30.209.96 | 172.30.209.97 | 172.30.209.110 | 172.30.209.111 | 14 |
| 4 | 172.30.209.112/28 | 172.30.209.112 | 172.30.209.113 | 172.30.209.126 | 172.30.209.127 | 14 |
Split 172.30.209.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.30.209.64/29 | 172.30.209.64 | 172.30.209.65 | 172.30.209.70 | 172.30.209.71 | 6 |
| 2 | 172.30.209.72/29 | 172.30.209.72 | 172.30.209.73 | 172.30.209.78 | 172.30.209.79 | 6 |
| 3 | 172.30.209.80/29 | 172.30.209.80 | 172.30.209.81 | 172.30.209.86 | 172.30.209.87 | 6 |
| 4 | 172.30.209.88/29 | 172.30.209.88 | 172.30.209.89 | 172.30.209.94 | 172.30.209.95 | 6 |
| 5 | 172.30.209.96/29 | 172.30.209.96 | 172.30.209.97 | 172.30.209.102 | 172.30.209.103 | 6 |
| 6 | 172.30.209.104/29 | 172.30.209.104 | 172.30.209.105 | 172.30.209.110 | 172.30.209.111 | 6 |
| 7 | 172.30.209.112/29 | 172.30.209.112 | 172.30.209.113 | 172.30.209.118 | 172.30.209.119 | 6 |
| 8 | 172.30.209.120/29 | 172.30.209.120 | 172.30.209.121 | 172.30.209.126 | 172.30.209.127 | 6 |
Split 172.30.209.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 172.30.209.64/30 | 172.30.209.64 | 172.30.209.65 | 172.30.209.66 | 172.30.209.67 | 2 |
| 2 | 172.30.209.68/30 | 172.30.209.68 | 172.30.209.69 | 172.30.209.70 | 172.30.209.71 | 2 |
| 3 | 172.30.209.72/30 | 172.30.209.72 | 172.30.209.73 | 172.30.209.74 | 172.30.209.75 | 2 |
| 4 | 172.30.209.76/30 | 172.30.209.76 | 172.30.209.77 | 172.30.209.78 | 172.30.209.79 | 2 |
| 5 | 172.30.209.80/30 | 172.30.209.80 | 172.30.209.81 | 172.30.209.82 | 172.30.209.83 | 2 |
| 6 | 172.30.209.84/30 | 172.30.209.84 | 172.30.209.85 | 172.30.209.86 | 172.30.209.87 | 2 |
| 7 | 172.30.209.88/30 | 172.30.209.88 | 172.30.209.89 | 172.30.209.90 | 172.30.209.91 | 2 |
| 8 | 172.30.209.92/30 | 172.30.209.92 | 172.30.209.93 | 172.30.209.94 | 172.30.209.95 | 2 |
| 9 | 172.30.209.96/30 | 172.30.209.96 | 172.30.209.97 | 172.30.209.98 | 172.30.209.99 | 2 |
| 10 | 172.30.209.100/30 | 172.30.209.100 | 172.30.209.101 | 172.30.209.102 | 172.30.209.103 | 2 |
| 11 | 172.30.209.104/30 | 172.30.209.104 | 172.30.209.105 | 172.30.209.106 | 172.30.209.107 | 2 |
| 12 | 172.30.209.108/30 | 172.30.209.108 | 172.30.209.109 | 172.30.209.110 | 172.30.209.111 | 2 |
| 13 | 172.30.209.112/30 | 172.30.209.112 | 172.30.209.113 | 172.30.209.114 | 172.30.209.115 | 2 |
| 14 | 172.30.209.116/30 | 172.30.209.116 | 172.30.209.117 | 172.30.209.118 | 172.30.209.119 | 2 |
| 15 | 172.30.209.120/30 | 172.30.209.120 | 172.30.209.121 | 172.30.209.122 | 172.30.209.123 | 2 |
| 16 | 172.30.209.124/30 | 172.30.209.124 | 172.30.209.125 | 172.30.209.126 | 172.30.209.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.