12.237.252.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (12.237.252.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 12.237.252.127 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 | 12.237.252.0/25 |
| Network Address | 12.237.252.0 |
| Broadcast Address | 12.237.252.127 |
| 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 | 12.237.252.1 |
| Last Usable IP | 12.237.252.126 |
| Network (Hex) | 0x0CEDFC00 |
| Broadcast (Hex) | 0x0CEDFC7F |
| 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 12.237.252.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 12.237.252.0/26 | 12.237.252.0 | 12.237.252.1 | 12.237.252.62 | 12.237.252.63 | 62 |
| 2 | 12.237.252.64/26 | 12.237.252.64 | 12.237.252.65 | 12.237.252.126 | 12.237.252.127 | 62 |
Split 12.237.252.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 12.237.252.0/27 | 12.237.252.0 | 12.237.252.1 | 12.237.252.30 | 12.237.252.31 | 30 |
| 2 | 12.237.252.32/27 | 12.237.252.32 | 12.237.252.33 | 12.237.252.62 | 12.237.252.63 | 30 |
| 3 | 12.237.252.64/27 | 12.237.252.64 | 12.237.252.65 | 12.237.252.94 | 12.237.252.95 | 30 |
| 4 | 12.237.252.96/27 | 12.237.252.96 | 12.237.252.97 | 12.237.252.126 | 12.237.252.127 | 30 |
Split 12.237.252.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 12.237.252.0/28 | 12.237.252.0 | 12.237.252.1 | 12.237.252.14 | 12.237.252.15 | 14 |
| 2 | 12.237.252.16/28 | 12.237.252.16 | 12.237.252.17 | 12.237.252.30 | 12.237.252.31 | 14 |
| 3 | 12.237.252.32/28 | 12.237.252.32 | 12.237.252.33 | 12.237.252.46 | 12.237.252.47 | 14 |
| 4 | 12.237.252.48/28 | 12.237.252.48 | 12.237.252.49 | 12.237.252.62 | 12.237.252.63 | 14 |
| 5 | 12.237.252.64/28 | 12.237.252.64 | 12.237.252.65 | 12.237.252.78 | 12.237.252.79 | 14 |
| 6 | 12.237.252.80/28 | 12.237.252.80 | 12.237.252.81 | 12.237.252.94 | 12.237.252.95 | 14 |
| 7 | 12.237.252.96/28 | 12.237.252.96 | 12.237.252.97 | 12.237.252.110 | 12.237.252.111 | 14 |
| 8 | 12.237.252.112/28 | 12.237.252.112 | 12.237.252.113 | 12.237.252.126 | 12.237.252.127 | 14 |
Split 12.237.252.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 12.237.252.0/29 | 12.237.252.0 | 12.237.252.1 | 12.237.252.6 | 12.237.252.7 | 6 |
| 2 | 12.237.252.8/29 | 12.237.252.8 | 12.237.252.9 | 12.237.252.14 | 12.237.252.15 | 6 |
| 3 | 12.237.252.16/29 | 12.237.252.16 | 12.237.252.17 | 12.237.252.22 | 12.237.252.23 | 6 |
| 4 | 12.237.252.24/29 | 12.237.252.24 | 12.237.252.25 | 12.237.252.30 | 12.237.252.31 | 6 |
| 5 | 12.237.252.32/29 | 12.237.252.32 | 12.237.252.33 | 12.237.252.38 | 12.237.252.39 | 6 |
| 6 | 12.237.252.40/29 | 12.237.252.40 | 12.237.252.41 | 12.237.252.46 | 12.237.252.47 | 6 |
| 7 | 12.237.252.48/29 | 12.237.252.48 | 12.237.252.49 | 12.237.252.54 | 12.237.252.55 | 6 |
| 8 | 12.237.252.56/29 | 12.237.252.56 | 12.237.252.57 | 12.237.252.62 | 12.237.252.63 | 6 |
| 9 | 12.237.252.64/29 | 12.237.252.64 | 12.237.252.65 | 12.237.252.70 | 12.237.252.71 | 6 |
| 10 | 12.237.252.72/29 | 12.237.252.72 | 12.237.252.73 | 12.237.252.78 | 12.237.252.79 | 6 |
| 11 | 12.237.252.80/29 | 12.237.252.80 | 12.237.252.81 | 12.237.252.86 | 12.237.252.87 | 6 |
| 12 | 12.237.252.88/29 | 12.237.252.88 | 12.237.252.89 | 12.237.252.94 | 12.237.252.95 | 6 |
| 13 | 12.237.252.96/29 | 12.237.252.96 | 12.237.252.97 | 12.237.252.102 | 12.237.252.103 | 6 |
| 14 | 12.237.252.104/29 | 12.237.252.104 | 12.237.252.105 | 12.237.252.110 | 12.237.252.111 | 6 |
| 15 | 12.237.252.112/29 | 12.237.252.112 | 12.237.252.113 | 12.237.252.118 | 12.237.252.119 | 6 |
| 16 | 12.237.252.120/29 | 12.237.252.120 | 12.237.252.121 | 12.237.252.126 | 12.237.252.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.