3.45.244.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (3.45.244.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 3.45.244.127 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 | 3.45.244.0/25 |
| Network Address | 3.45.244.0 |
| Broadcast Address | 3.45.244.127 |
| 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 | 3.45.244.1 |
| Last Usable IP | 3.45.244.126 |
| Network (Hex) | 0x032DF400 |
| Broadcast (Hex) | 0x032DF47F |
| 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 3.45.244.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.45.244.0/26 | 3.45.244.0 | 3.45.244.1 | 3.45.244.62 | 3.45.244.63 | 62 |
| 2 | 3.45.244.64/26 | 3.45.244.64 | 3.45.244.65 | 3.45.244.126 | 3.45.244.127 | 62 |
Split 3.45.244.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.45.244.0/27 | 3.45.244.0 | 3.45.244.1 | 3.45.244.30 | 3.45.244.31 | 30 |
| 2 | 3.45.244.32/27 | 3.45.244.32 | 3.45.244.33 | 3.45.244.62 | 3.45.244.63 | 30 |
| 3 | 3.45.244.64/27 | 3.45.244.64 | 3.45.244.65 | 3.45.244.94 | 3.45.244.95 | 30 |
| 4 | 3.45.244.96/27 | 3.45.244.96 | 3.45.244.97 | 3.45.244.126 | 3.45.244.127 | 30 |
Split 3.45.244.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.45.244.0/28 | 3.45.244.0 | 3.45.244.1 | 3.45.244.14 | 3.45.244.15 | 14 |
| 2 | 3.45.244.16/28 | 3.45.244.16 | 3.45.244.17 | 3.45.244.30 | 3.45.244.31 | 14 |
| 3 | 3.45.244.32/28 | 3.45.244.32 | 3.45.244.33 | 3.45.244.46 | 3.45.244.47 | 14 |
| 4 | 3.45.244.48/28 | 3.45.244.48 | 3.45.244.49 | 3.45.244.62 | 3.45.244.63 | 14 |
| 5 | 3.45.244.64/28 | 3.45.244.64 | 3.45.244.65 | 3.45.244.78 | 3.45.244.79 | 14 |
| 6 | 3.45.244.80/28 | 3.45.244.80 | 3.45.244.81 | 3.45.244.94 | 3.45.244.95 | 14 |
| 7 | 3.45.244.96/28 | 3.45.244.96 | 3.45.244.97 | 3.45.244.110 | 3.45.244.111 | 14 |
| 8 | 3.45.244.112/28 | 3.45.244.112 | 3.45.244.113 | 3.45.244.126 | 3.45.244.127 | 14 |
Split 3.45.244.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 3.45.244.0/29 | 3.45.244.0 | 3.45.244.1 | 3.45.244.6 | 3.45.244.7 | 6 |
| 2 | 3.45.244.8/29 | 3.45.244.8 | 3.45.244.9 | 3.45.244.14 | 3.45.244.15 | 6 |
| 3 | 3.45.244.16/29 | 3.45.244.16 | 3.45.244.17 | 3.45.244.22 | 3.45.244.23 | 6 |
| 4 | 3.45.244.24/29 | 3.45.244.24 | 3.45.244.25 | 3.45.244.30 | 3.45.244.31 | 6 |
| 5 | 3.45.244.32/29 | 3.45.244.32 | 3.45.244.33 | 3.45.244.38 | 3.45.244.39 | 6 |
| 6 | 3.45.244.40/29 | 3.45.244.40 | 3.45.244.41 | 3.45.244.46 | 3.45.244.47 | 6 |
| 7 | 3.45.244.48/29 | 3.45.244.48 | 3.45.244.49 | 3.45.244.54 | 3.45.244.55 | 6 |
| 8 | 3.45.244.56/29 | 3.45.244.56 | 3.45.244.57 | 3.45.244.62 | 3.45.244.63 | 6 |
| 9 | 3.45.244.64/29 | 3.45.244.64 | 3.45.244.65 | 3.45.244.70 | 3.45.244.71 | 6 |
| 10 | 3.45.244.72/29 | 3.45.244.72 | 3.45.244.73 | 3.45.244.78 | 3.45.244.79 | 6 |
| 11 | 3.45.244.80/29 | 3.45.244.80 | 3.45.244.81 | 3.45.244.86 | 3.45.244.87 | 6 |
| 12 | 3.45.244.88/29 | 3.45.244.88 | 3.45.244.89 | 3.45.244.94 | 3.45.244.95 | 6 |
| 13 | 3.45.244.96/29 | 3.45.244.96 | 3.45.244.97 | 3.45.244.102 | 3.45.244.103 | 6 |
| 14 | 3.45.244.104/29 | 3.45.244.104 | 3.45.244.105 | 3.45.244.110 | 3.45.244.111 | 6 |
| 15 | 3.45.244.112/29 | 3.45.244.112 | 3.45.244.113 | 3.45.244.118 | 3.45.244.119 | 6 |
| 16 | 3.45.244.120/29 | 3.45.244.120 | 3.45.244.121 | 3.45.244.126 | 3.45.244.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.