108.128.253.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (108.128.253.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 108.128.253.127 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 | 108.128.253.0/25 |
| Network Address | 108.128.253.0 |
| Broadcast Address | 108.128.253.127 |
| 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 | 108.128.253.1 |
| Last Usable IP | 108.128.253.126 |
| Network (Hex) | 0x6C80FD00 |
| Broadcast (Hex) | 0x6C80FD7F |
| 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 108.128.253.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 108.128.253.0/26 | 108.128.253.0 | 108.128.253.1 | 108.128.253.62 | 108.128.253.63 | 62 |
| 2 | 108.128.253.64/26 | 108.128.253.64 | 108.128.253.65 | 108.128.253.126 | 108.128.253.127 | 62 |
Split 108.128.253.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 108.128.253.0/27 | 108.128.253.0 | 108.128.253.1 | 108.128.253.30 | 108.128.253.31 | 30 |
| 2 | 108.128.253.32/27 | 108.128.253.32 | 108.128.253.33 | 108.128.253.62 | 108.128.253.63 | 30 |
| 3 | 108.128.253.64/27 | 108.128.253.64 | 108.128.253.65 | 108.128.253.94 | 108.128.253.95 | 30 |
| 4 | 108.128.253.96/27 | 108.128.253.96 | 108.128.253.97 | 108.128.253.126 | 108.128.253.127 | 30 |
Split 108.128.253.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 108.128.253.0/28 | 108.128.253.0 | 108.128.253.1 | 108.128.253.14 | 108.128.253.15 | 14 |
| 2 | 108.128.253.16/28 | 108.128.253.16 | 108.128.253.17 | 108.128.253.30 | 108.128.253.31 | 14 |
| 3 | 108.128.253.32/28 | 108.128.253.32 | 108.128.253.33 | 108.128.253.46 | 108.128.253.47 | 14 |
| 4 | 108.128.253.48/28 | 108.128.253.48 | 108.128.253.49 | 108.128.253.62 | 108.128.253.63 | 14 |
| 5 | 108.128.253.64/28 | 108.128.253.64 | 108.128.253.65 | 108.128.253.78 | 108.128.253.79 | 14 |
| 6 | 108.128.253.80/28 | 108.128.253.80 | 108.128.253.81 | 108.128.253.94 | 108.128.253.95 | 14 |
| 7 | 108.128.253.96/28 | 108.128.253.96 | 108.128.253.97 | 108.128.253.110 | 108.128.253.111 | 14 |
| 8 | 108.128.253.112/28 | 108.128.253.112 | 108.128.253.113 | 108.128.253.126 | 108.128.253.127 | 14 |
Split 108.128.253.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 108.128.253.0/29 | 108.128.253.0 | 108.128.253.1 | 108.128.253.6 | 108.128.253.7 | 6 |
| 2 | 108.128.253.8/29 | 108.128.253.8 | 108.128.253.9 | 108.128.253.14 | 108.128.253.15 | 6 |
| 3 | 108.128.253.16/29 | 108.128.253.16 | 108.128.253.17 | 108.128.253.22 | 108.128.253.23 | 6 |
| 4 | 108.128.253.24/29 | 108.128.253.24 | 108.128.253.25 | 108.128.253.30 | 108.128.253.31 | 6 |
| 5 | 108.128.253.32/29 | 108.128.253.32 | 108.128.253.33 | 108.128.253.38 | 108.128.253.39 | 6 |
| 6 | 108.128.253.40/29 | 108.128.253.40 | 108.128.253.41 | 108.128.253.46 | 108.128.253.47 | 6 |
| 7 | 108.128.253.48/29 | 108.128.253.48 | 108.128.253.49 | 108.128.253.54 | 108.128.253.55 | 6 |
| 8 | 108.128.253.56/29 | 108.128.253.56 | 108.128.253.57 | 108.128.253.62 | 108.128.253.63 | 6 |
| 9 | 108.128.253.64/29 | 108.128.253.64 | 108.128.253.65 | 108.128.253.70 | 108.128.253.71 | 6 |
| 10 | 108.128.253.72/29 | 108.128.253.72 | 108.128.253.73 | 108.128.253.78 | 108.128.253.79 | 6 |
| 11 | 108.128.253.80/29 | 108.128.253.80 | 108.128.253.81 | 108.128.253.86 | 108.128.253.87 | 6 |
| 12 | 108.128.253.88/29 | 108.128.253.88 | 108.128.253.89 | 108.128.253.94 | 108.128.253.95 | 6 |
| 13 | 108.128.253.96/29 | 108.128.253.96 | 108.128.253.97 | 108.128.253.102 | 108.128.253.103 | 6 |
| 14 | 108.128.253.104/29 | 108.128.253.104 | 108.128.253.105 | 108.128.253.110 | 108.128.253.111 | 6 |
| 15 | 108.128.253.112/29 | 108.128.253.112 | 108.128.253.113 | 108.128.253.118 | 108.128.253.119 | 6 |
| 16 | 108.128.253.120/29 | 108.128.253.120 | 108.128.253.121 | 108.128.253.126 | 108.128.253.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.