137.172.1.64/26
PublicClass B — /26 prefix — 62 usable hosts
Network address — the base address of the block (137.172.1.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 137.172.1.127 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 | 137.172.1.64/26 |
| Network Address | 137.172.1.64 |
| Broadcast Address | 137.172.1.127 |
| 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 | 137.172.1.65 |
| Last Usable IP | 137.172.1.126 |
| Network (Hex) | 0x89AC0140 |
| Broadcast (Hex) | 0x89AC017F |
| 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 137.172.1.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 137.172.1.64/27 | 137.172.1.64 | 137.172.1.65 | 137.172.1.94 | 137.172.1.95 | 30 |
| 2 | 137.172.1.96/27 | 137.172.1.96 | 137.172.1.97 | 137.172.1.126 | 137.172.1.127 | 30 |
Split 137.172.1.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 137.172.1.64/28 | 137.172.1.64 | 137.172.1.65 | 137.172.1.78 | 137.172.1.79 | 14 |
| 2 | 137.172.1.80/28 | 137.172.1.80 | 137.172.1.81 | 137.172.1.94 | 137.172.1.95 | 14 |
| 3 | 137.172.1.96/28 | 137.172.1.96 | 137.172.1.97 | 137.172.1.110 | 137.172.1.111 | 14 |
| 4 | 137.172.1.112/28 | 137.172.1.112 | 137.172.1.113 | 137.172.1.126 | 137.172.1.127 | 14 |
Split 137.172.1.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 137.172.1.64/29 | 137.172.1.64 | 137.172.1.65 | 137.172.1.70 | 137.172.1.71 | 6 |
| 2 | 137.172.1.72/29 | 137.172.1.72 | 137.172.1.73 | 137.172.1.78 | 137.172.1.79 | 6 |
| 3 | 137.172.1.80/29 | 137.172.1.80 | 137.172.1.81 | 137.172.1.86 | 137.172.1.87 | 6 |
| 4 | 137.172.1.88/29 | 137.172.1.88 | 137.172.1.89 | 137.172.1.94 | 137.172.1.95 | 6 |
| 5 | 137.172.1.96/29 | 137.172.1.96 | 137.172.1.97 | 137.172.1.102 | 137.172.1.103 | 6 |
| 6 | 137.172.1.104/29 | 137.172.1.104 | 137.172.1.105 | 137.172.1.110 | 137.172.1.111 | 6 |
| 7 | 137.172.1.112/29 | 137.172.1.112 | 137.172.1.113 | 137.172.1.118 | 137.172.1.119 | 6 |
| 8 | 137.172.1.120/29 | 137.172.1.120 | 137.172.1.121 | 137.172.1.126 | 137.172.1.127 | 6 |
Split 137.172.1.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 137.172.1.64/30 | 137.172.1.64 | 137.172.1.65 | 137.172.1.66 | 137.172.1.67 | 2 |
| 2 | 137.172.1.68/30 | 137.172.1.68 | 137.172.1.69 | 137.172.1.70 | 137.172.1.71 | 2 |
| 3 | 137.172.1.72/30 | 137.172.1.72 | 137.172.1.73 | 137.172.1.74 | 137.172.1.75 | 2 |
| 4 | 137.172.1.76/30 | 137.172.1.76 | 137.172.1.77 | 137.172.1.78 | 137.172.1.79 | 2 |
| 5 | 137.172.1.80/30 | 137.172.1.80 | 137.172.1.81 | 137.172.1.82 | 137.172.1.83 | 2 |
| 6 | 137.172.1.84/30 | 137.172.1.84 | 137.172.1.85 | 137.172.1.86 | 137.172.1.87 | 2 |
| 7 | 137.172.1.88/30 | 137.172.1.88 | 137.172.1.89 | 137.172.1.90 | 137.172.1.91 | 2 |
| 8 | 137.172.1.92/30 | 137.172.1.92 | 137.172.1.93 | 137.172.1.94 | 137.172.1.95 | 2 |
| 9 | 137.172.1.96/30 | 137.172.1.96 | 137.172.1.97 | 137.172.1.98 | 137.172.1.99 | 2 |
| 10 | 137.172.1.100/30 | 137.172.1.100 | 137.172.1.101 | 137.172.1.102 | 137.172.1.103 | 2 |
| 11 | 137.172.1.104/30 | 137.172.1.104 | 137.172.1.105 | 137.172.1.106 | 137.172.1.107 | 2 |
| 12 | 137.172.1.108/30 | 137.172.1.108 | 137.172.1.109 | 137.172.1.110 | 137.172.1.111 | 2 |
| 13 | 137.172.1.112/30 | 137.172.1.112 | 137.172.1.113 | 137.172.1.114 | 137.172.1.115 | 2 |
| 14 | 137.172.1.116/30 | 137.172.1.116 | 137.172.1.117 | 137.172.1.118 | 137.172.1.119 | 2 |
| 15 | 137.172.1.120/30 | 137.172.1.120 | 137.172.1.121 | 137.172.1.122 | 137.172.1.123 | 2 |
| 16 | 137.172.1.124/30 | 137.172.1.124 | 137.172.1.125 | 137.172.1.126 | 137.172.1.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.