1.178.2.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (1.178.2.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 1.178.2.127 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 | 1.178.2.0/25 |
| Network Address | 1.178.2.0 |
| Broadcast Address | 1.178.2.127 |
| 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 | 1.178.2.1 |
| Last Usable IP | 1.178.2.126 |
| Network (Hex) | 0x01B20200 |
| Broadcast (Hex) | 0x01B2027F |
| 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 1.178.2.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 1.178.2.0/26 | 1.178.2.0 | 1.178.2.1 | 1.178.2.62 | 1.178.2.63 | 62 |
| 2 | 1.178.2.64/26 | 1.178.2.64 | 1.178.2.65 | 1.178.2.126 | 1.178.2.127 | 62 |
Split 1.178.2.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 1.178.2.0/27 | 1.178.2.0 | 1.178.2.1 | 1.178.2.30 | 1.178.2.31 | 30 |
| 2 | 1.178.2.32/27 | 1.178.2.32 | 1.178.2.33 | 1.178.2.62 | 1.178.2.63 | 30 |
| 3 | 1.178.2.64/27 | 1.178.2.64 | 1.178.2.65 | 1.178.2.94 | 1.178.2.95 | 30 |
| 4 | 1.178.2.96/27 | 1.178.2.96 | 1.178.2.97 | 1.178.2.126 | 1.178.2.127 | 30 |
Split 1.178.2.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 1.178.2.0/28 | 1.178.2.0 | 1.178.2.1 | 1.178.2.14 | 1.178.2.15 | 14 |
| 2 | 1.178.2.16/28 | 1.178.2.16 | 1.178.2.17 | 1.178.2.30 | 1.178.2.31 | 14 |
| 3 | 1.178.2.32/28 | 1.178.2.32 | 1.178.2.33 | 1.178.2.46 | 1.178.2.47 | 14 |
| 4 | 1.178.2.48/28 | 1.178.2.48 | 1.178.2.49 | 1.178.2.62 | 1.178.2.63 | 14 |
| 5 | 1.178.2.64/28 | 1.178.2.64 | 1.178.2.65 | 1.178.2.78 | 1.178.2.79 | 14 |
| 6 | 1.178.2.80/28 | 1.178.2.80 | 1.178.2.81 | 1.178.2.94 | 1.178.2.95 | 14 |
| 7 | 1.178.2.96/28 | 1.178.2.96 | 1.178.2.97 | 1.178.2.110 | 1.178.2.111 | 14 |
| 8 | 1.178.2.112/28 | 1.178.2.112 | 1.178.2.113 | 1.178.2.126 | 1.178.2.127 | 14 |
Split 1.178.2.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 1.178.2.0/29 | 1.178.2.0 | 1.178.2.1 | 1.178.2.6 | 1.178.2.7 | 6 |
| 2 | 1.178.2.8/29 | 1.178.2.8 | 1.178.2.9 | 1.178.2.14 | 1.178.2.15 | 6 |
| 3 | 1.178.2.16/29 | 1.178.2.16 | 1.178.2.17 | 1.178.2.22 | 1.178.2.23 | 6 |
| 4 | 1.178.2.24/29 | 1.178.2.24 | 1.178.2.25 | 1.178.2.30 | 1.178.2.31 | 6 |
| 5 | 1.178.2.32/29 | 1.178.2.32 | 1.178.2.33 | 1.178.2.38 | 1.178.2.39 | 6 |
| 6 | 1.178.2.40/29 | 1.178.2.40 | 1.178.2.41 | 1.178.2.46 | 1.178.2.47 | 6 |
| 7 | 1.178.2.48/29 | 1.178.2.48 | 1.178.2.49 | 1.178.2.54 | 1.178.2.55 | 6 |
| 8 | 1.178.2.56/29 | 1.178.2.56 | 1.178.2.57 | 1.178.2.62 | 1.178.2.63 | 6 |
| 9 | 1.178.2.64/29 | 1.178.2.64 | 1.178.2.65 | 1.178.2.70 | 1.178.2.71 | 6 |
| 10 | 1.178.2.72/29 | 1.178.2.72 | 1.178.2.73 | 1.178.2.78 | 1.178.2.79 | 6 |
| 11 | 1.178.2.80/29 | 1.178.2.80 | 1.178.2.81 | 1.178.2.86 | 1.178.2.87 | 6 |
| 12 | 1.178.2.88/29 | 1.178.2.88 | 1.178.2.89 | 1.178.2.94 | 1.178.2.95 | 6 |
| 13 | 1.178.2.96/29 | 1.178.2.96 | 1.178.2.97 | 1.178.2.102 | 1.178.2.103 | 6 |
| 14 | 1.178.2.104/29 | 1.178.2.104 | 1.178.2.105 | 1.178.2.110 | 1.178.2.111 | 6 |
| 15 | 1.178.2.112/29 | 1.178.2.112 | 1.178.2.113 | 1.178.2.118 | 1.178.2.119 | 6 |
| 16 | 1.178.2.120/29 | 1.178.2.120 | 1.178.2.121 | 1.178.2.126 | 1.178.2.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.