71.155.209.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (71.155.209.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 71.155.209.127 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 71.155.209.0/25 |
| Network Address | 71.155.209.0 |
| Broadcast Address | 71.155.209.127 |
| Subnet Mask | 255.255.255.128 |
| Wildcard Mask | 0.0.0.127 |
| Prefix Length | /25 |
| IP Address Class | Class A |
| Total IP Addresses | 128 |
| Usable Host Addresses | 126 |
| First Usable IP | 71.155.209.1 |
| Last Usable IP | 71.155.209.126 |
| Network (Hex) | 0x479BD100 |
| Broadcast (Hex) | 0x479BD17F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.
Split into Equal Subnets
Split 71.155.209.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 71.155.209.0/26 | 71.155.209.0 | 71.155.209.1 | 71.155.209.62 | 71.155.209.63 | 62 |
| 2 | 71.155.209.64/26 | 71.155.209.64 | 71.155.209.65 | 71.155.209.126 | 71.155.209.127 | 62 |
Split 71.155.209.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 71.155.209.0/27 | 71.155.209.0 | 71.155.209.1 | 71.155.209.30 | 71.155.209.31 | 30 |
| 2 | 71.155.209.32/27 | 71.155.209.32 | 71.155.209.33 | 71.155.209.62 | 71.155.209.63 | 30 |
| 3 | 71.155.209.64/27 | 71.155.209.64 | 71.155.209.65 | 71.155.209.94 | 71.155.209.95 | 30 |
| 4 | 71.155.209.96/27 | 71.155.209.96 | 71.155.209.97 | 71.155.209.126 | 71.155.209.127 | 30 |
Split 71.155.209.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 71.155.209.0/28 | 71.155.209.0 | 71.155.209.1 | 71.155.209.14 | 71.155.209.15 | 14 |
| 2 | 71.155.209.16/28 | 71.155.209.16 | 71.155.209.17 | 71.155.209.30 | 71.155.209.31 | 14 |
| 3 | 71.155.209.32/28 | 71.155.209.32 | 71.155.209.33 | 71.155.209.46 | 71.155.209.47 | 14 |
| 4 | 71.155.209.48/28 | 71.155.209.48 | 71.155.209.49 | 71.155.209.62 | 71.155.209.63 | 14 |
| 5 | 71.155.209.64/28 | 71.155.209.64 | 71.155.209.65 | 71.155.209.78 | 71.155.209.79 | 14 |
| 6 | 71.155.209.80/28 | 71.155.209.80 | 71.155.209.81 | 71.155.209.94 | 71.155.209.95 | 14 |
| 7 | 71.155.209.96/28 | 71.155.209.96 | 71.155.209.97 | 71.155.209.110 | 71.155.209.111 | 14 |
| 8 | 71.155.209.112/28 | 71.155.209.112 | 71.155.209.113 | 71.155.209.126 | 71.155.209.127 | 14 |
Split 71.155.209.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 71.155.209.0/29 | 71.155.209.0 | 71.155.209.1 | 71.155.209.6 | 71.155.209.7 | 6 |
| 2 | 71.155.209.8/29 | 71.155.209.8 | 71.155.209.9 | 71.155.209.14 | 71.155.209.15 | 6 |
| 3 | 71.155.209.16/29 | 71.155.209.16 | 71.155.209.17 | 71.155.209.22 | 71.155.209.23 | 6 |
| 4 | 71.155.209.24/29 | 71.155.209.24 | 71.155.209.25 | 71.155.209.30 | 71.155.209.31 | 6 |
| 5 | 71.155.209.32/29 | 71.155.209.32 | 71.155.209.33 | 71.155.209.38 | 71.155.209.39 | 6 |
| 6 | 71.155.209.40/29 | 71.155.209.40 | 71.155.209.41 | 71.155.209.46 | 71.155.209.47 | 6 |
| 7 | 71.155.209.48/29 | 71.155.209.48 | 71.155.209.49 | 71.155.209.54 | 71.155.209.55 | 6 |
| 8 | 71.155.209.56/29 | 71.155.209.56 | 71.155.209.57 | 71.155.209.62 | 71.155.209.63 | 6 |
| 9 | 71.155.209.64/29 | 71.155.209.64 | 71.155.209.65 | 71.155.209.70 | 71.155.209.71 | 6 |
| 10 | 71.155.209.72/29 | 71.155.209.72 | 71.155.209.73 | 71.155.209.78 | 71.155.209.79 | 6 |
| 11 | 71.155.209.80/29 | 71.155.209.80 | 71.155.209.81 | 71.155.209.86 | 71.155.209.87 | 6 |
| 12 | 71.155.209.88/29 | 71.155.209.88 | 71.155.209.89 | 71.155.209.94 | 71.155.209.95 | 6 |
| 13 | 71.155.209.96/29 | 71.155.209.96 | 71.155.209.97 | 71.155.209.102 | 71.155.209.103 | 6 |
| 14 | 71.155.209.104/29 | 71.155.209.104 | 71.155.209.105 | 71.155.209.110 | 71.155.209.111 | 6 |
| 15 | 71.155.209.112/29 | 71.155.209.112 | 71.155.209.113 | 71.155.209.118 | 71.155.209.119 | 6 |
| 16 | 71.155.209.120/29 | 71.155.209.120 | 71.155.209.121 | 71.155.209.126 | 71.155.209.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.