3.40.129.64/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (3.40.129.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 3.40.129.127 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 | 3.40.129.64/26 |
| Network Address | 3.40.129.64 |
| Broadcast Address | 3.40.129.127 |
| 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 | 3.40.129.65 |
| Last Usable IP | 3.40.129.126 |
| Network (Hex) | 0x03288140 |
| Broadcast (Hex) | 0x0328817F |
| 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 3.40.129.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.40.129.64/27 | 3.40.129.64 | 3.40.129.65 | 3.40.129.94 | 3.40.129.95 | 30 |
| 2 | 3.40.129.96/27 | 3.40.129.96 | 3.40.129.97 | 3.40.129.126 | 3.40.129.127 | 30 |
Split 3.40.129.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.40.129.64/28 | 3.40.129.64 | 3.40.129.65 | 3.40.129.78 | 3.40.129.79 | 14 |
| 2 | 3.40.129.80/28 | 3.40.129.80 | 3.40.129.81 | 3.40.129.94 | 3.40.129.95 | 14 |
| 3 | 3.40.129.96/28 | 3.40.129.96 | 3.40.129.97 | 3.40.129.110 | 3.40.129.111 | 14 |
| 4 | 3.40.129.112/28 | 3.40.129.112 | 3.40.129.113 | 3.40.129.126 | 3.40.129.127 | 14 |
Split 3.40.129.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.40.129.64/29 | 3.40.129.64 | 3.40.129.65 | 3.40.129.70 | 3.40.129.71 | 6 |
| 2 | 3.40.129.72/29 | 3.40.129.72 | 3.40.129.73 | 3.40.129.78 | 3.40.129.79 | 6 |
| 3 | 3.40.129.80/29 | 3.40.129.80 | 3.40.129.81 | 3.40.129.86 | 3.40.129.87 | 6 |
| 4 | 3.40.129.88/29 | 3.40.129.88 | 3.40.129.89 | 3.40.129.94 | 3.40.129.95 | 6 |
| 5 | 3.40.129.96/29 | 3.40.129.96 | 3.40.129.97 | 3.40.129.102 | 3.40.129.103 | 6 |
| 6 | 3.40.129.104/29 | 3.40.129.104 | 3.40.129.105 | 3.40.129.110 | 3.40.129.111 | 6 |
| 7 | 3.40.129.112/29 | 3.40.129.112 | 3.40.129.113 | 3.40.129.118 | 3.40.129.119 | 6 |
| 8 | 3.40.129.120/29 | 3.40.129.120 | 3.40.129.121 | 3.40.129.126 | 3.40.129.127 | 6 |
Split 3.40.129.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.40.129.64/30 | 3.40.129.64 | 3.40.129.65 | 3.40.129.66 | 3.40.129.67 | 2 |
| 2 | 3.40.129.68/30 | 3.40.129.68 | 3.40.129.69 | 3.40.129.70 | 3.40.129.71 | 2 |
| 3 | 3.40.129.72/30 | 3.40.129.72 | 3.40.129.73 | 3.40.129.74 | 3.40.129.75 | 2 |
| 4 | 3.40.129.76/30 | 3.40.129.76 | 3.40.129.77 | 3.40.129.78 | 3.40.129.79 | 2 |
| 5 | 3.40.129.80/30 | 3.40.129.80 | 3.40.129.81 | 3.40.129.82 | 3.40.129.83 | 2 |
| 6 | 3.40.129.84/30 | 3.40.129.84 | 3.40.129.85 | 3.40.129.86 | 3.40.129.87 | 2 |
| 7 | 3.40.129.88/30 | 3.40.129.88 | 3.40.129.89 | 3.40.129.90 | 3.40.129.91 | 2 |
| 8 | 3.40.129.92/30 | 3.40.129.92 | 3.40.129.93 | 3.40.129.94 | 3.40.129.95 | 2 |
| 9 | 3.40.129.96/30 | 3.40.129.96 | 3.40.129.97 | 3.40.129.98 | 3.40.129.99 | 2 |
| 10 | 3.40.129.100/30 | 3.40.129.100 | 3.40.129.101 | 3.40.129.102 | 3.40.129.103 | 2 |
| 11 | 3.40.129.104/30 | 3.40.129.104 | 3.40.129.105 | 3.40.129.106 | 3.40.129.107 | 2 |
| 12 | 3.40.129.108/30 | 3.40.129.108 | 3.40.129.109 | 3.40.129.110 | 3.40.129.111 | 2 |
| 13 | 3.40.129.112/30 | 3.40.129.112 | 3.40.129.113 | 3.40.129.114 | 3.40.129.115 | 2 |
| 14 | 3.40.129.116/30 | 3.40.129.116 | 3.40.129.117 | 3.40.129.118 | 3.40.129.119 | 2 |
| 15 | 3.40.129.120/30 | 3.40.129.120 | 3.40.129.121 | 3.40.129.122 | 3.40.129.123 | 2 |
| 16 | 3.40.129.124/30 | 3.40.129.124 | 3.40.129.125 | 3.40.129.126 | 3.40.129.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.