15.103.170.64/26
PublicClass A — /26 prefix — 62 usable hosts
Network address — the base address of the block (15.103.170.64). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 15.103.170.127 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 | 15.103.170.64/26 |
| Network Address | 15.103.170.64 |
| Broadcast Address | 15.103.170.127 |
| 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 | 15.103.170.65 |
| Last Usable IP | 15.103.170.126 |
| Network (Hex) | 0x0F67AA40 |
| Broadcast (Hex) | 0x0F67AA7F |
| 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 15.103.170.64/26 into 2 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.103.170.64/27 | 15.103.170.64 | 15.103.170.65 | 15.103.170.94 | 15.103.170.95 | 30 |
| 2 | 15.103.170.96/27 | 15.103.170.96 | 15.103.170.97 | 15.103.170.126 | 15.103.170.127 | 30 |
Split 15.103.170.64/26 into 4 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.103.170.64/28 | 15.103.170.64 | 15.103.170.65 | 15.103.170.78 | 15.103.170.79 | 14 |
| 2 | 15.103.170.80/28 | 15.103.170.80 | 15.103.170.81 | 15.103.170.94 | 15.103.170.95 | 14 |
| 3 | 15.103.170.96/28 | 15.103.170.96 | 15.103.170.97 | 15.103.170.110 | 15.103.170.111 | 14 |
| 4 | 15.103.170.112/28 | 15.103.170.112 | 15.103.170.113 | 15.103.170.126 | 15.103.170.127 | 14 |
Split 15.103.170.64/26 into 8 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.103.170.64/29 | 15.103.170.64 | 15.103.170.65 | 15.103.170.70 | 15.103.170.71 | 6 |
| 2 | 15.103.170.72/29 | 15.103.170.72 | 15.103.170.73 | 15.103.170.78 | 15.103.170.79 | 6 |
| 3 | 15.103.170.80/29 | 15.103.170.80 | 15.103.170.81 | 15.103.170.86 | 15.103.170.87 | 6 |
| 4 | 15.103.170.88/29 | 15.103.170.88 | 15.103.170.89 | 15.103.170.94 | 15.103.170.95 | 6 |
| 5 | 15.103.170.96/29 | 15.103.170.96 | 15.103.170.97 | 15.103.170.102 | 15.103.170.103 | 6 |
| 6 | 15.103.170.104/29 | 15.103.170.104 | 15.103.170.105 | 15.103.170.110 | 15.103.170.111 | 6 |
| 7 | 15.103.170.112/29 | 15.103.170.112 | 15.103.170.113 | 15.103.170.118 | 15.103.170.119 | 6 |
| 8 | 15.103.170.120/29 | 15.103.170.120 | 15.103.170.121 | 15.103.170.126 | 15.103.170.127 | 6 |
Split 15.103.170.64/26 into 16 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 15.103.170.64/30 | 15.103.170.64 | 15.103.170.65 | 15.103.170.66 | 15.103.170.67 | 2 |
| 2 | 15.103.170.68/30 | 15.103.170.68 | 15.103.170.69 | 15.103.170.70 | 15.103.170.71 | 2 |
| 3 | 15.103.170.72/30 | 15.103.170.72 | 15.103.170.73 | 15.103.170.74 | 15.103.170.75 | 2 |
| 4 | 15.103.170.76/30 | 15.103.170.76 | 15.103.170.77 | 15.103.170.78 | 15.103.170.79 | 2 |
| 5 | 15.103.170.80/30 | 15.103.170.80 | 15.103.170.81 | 15.103.170.82 | 15.103.170.83 | 2 |
| 6 | 15.103.170.84/30 | 15.103.170.84 | 15.103.170.85 | 15.103.170.86 | 15.103.170.87 | 2 |
| 7 | 15.103.170.88/30 | 15.103.170.88 | 15.103.170.89 | 15.103.170.90 | 15.103.170.91 | 2 |
| 8 | 15.103.170.92/30 | 15.103.170.92 | 15.103.170.93 | 15.103.170.94 | 15.103.170.95 | 2 |
| 9 | 15.103.170.96/30 | 15.103.170.96 | 15.103.170.97 | 15.103.170.98 | 15.103.170.99 | 2 |
| 10 | 15.103.170.100/30 | 15.103.170.100 | 15.103.170.101 | 15.103.170.102 | 15.103.170.103 | 2 |
| 11 | 15.103.170.104/30 | 15.103.170.104 | 15.103.170.105 | 15.103.170.106 | 15.103.170.107 | 2 |
| 12 | 15.103.170.108/30 | 15.103.170.108 | 15.103.170.109 | 15.103.170.110 | 15.103.170.111 | 2 |
| 13 | 15.103.170.112/30 | 15.103.170.112 | 15.103.170.113 | 15.103.170.114 | 15.103.170.115 | 2 |
| 14 | 15.103.170.116/30 | 15.103.170.116 | 15.103.170.117 | 15.103.170.118 | 15.103.170.119 | 2 |
| 15 | 15.103.170.120/30 | 15.103.170.120 | 15.103.170.121 | 15.103.170.122 | 15.103.170.123 | 2 |
| 16 | 15.103.170.124/30 | 15.103.170.124 | 15.103.170.125 | 15.103.170.126 | 15.103.170.127 | 2 |
IP Address Sample
Showing first 16 of 64 total IPs.