30.7.216.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (30.7.216.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 30.7.216.127 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 | 30.7.216.0/25 |
| Network Address | 30.7.216.0 |
| Broadcast Address | 30.7.216.127 |
| 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 | 30.7.216.1 |
| Last Usable IP | 30.7.216.126 |
| Network (Hex) | 0x1E07D800 |
| Broadcast (Hex) | 0x1E07D87F |
| 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 30.7.216.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 30.7.216.0/26 | 30.7.216.0 | 30.7.216.1 | 30.7.216.62 | 30.7.216.63 | 62 |
| 2 | 30.7.216.64/26 | 30.7.216.64 | 30.7.216.65 | 30.7.216.126 | 30.7.216.127 | 62 |
Split 30.7.216.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 30.7.216.0/27 | 30.7.216.0 | 30.7.216.1 | 30.7.216.30 | 30.7.216.31 | 30 |
| 2 | 30.7.216.32/27 | 30.7.216.32 | 30.7.216.33 | 30.7.216.62 | 30.7.216.63 | 30 |
| 3 | 30.7.216.64/27 | 30.7.216.64 | 30.7.216.65 | 30.7.216.94 | 30.7.216.95 | 30 |
| 4 | 30.7.216.96/27 | 30.7.216.96 | 30.7.216.97 | 30.7.216.126 | 30.7.216.127 | 30 |
Split 30.7.216.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 30.7.216.0/28 | 30.7.216.0 | 30.7.216.1 | 30.7.216.14 | 30.7.216.15 | 14 |
| 2 | 30.7.216.16/28 | 30.7.216.16 | 30.7.216.17 | 30.7.216.30 | 30.7.216.31 | 14 |
| 3 | 30.7.216.32/28 | 30.7.216.32 | 30.7.216.33 | 30.7.216.46 | 30.7.216.47 | 14 |
| 4 | 30.7.216.48/28 | 30.7.216.48 | 30.7.216.49 | 30.7.216.62 | 30.7.216.63 | 14 |
| 5 | 30.7.216.64/28 | 30.7.216.64 | 30.7.216.65 | 30.7.216.78 | 30.7.216.79 | 14 |
| 6 | 30.7.216.80/28 | 30.7.216.80 | 30.7.216.81 | 30.7.216.94 | 30.7.216.95 | 14 |
| 7 | 30.7.216.96/28 | 30.7.216.96 | 30.7.216.97 | 30.7.216.110 | 30.7.216.111 | 14 |
| 8 | 30.7.216.112/28 | 30.7.216.112 | 30.7.216.113 | 30.7.216.126 | 30.7.216.127 | 14 |
Split 30.7.216.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 30.7.216.0/29 | 30.7.216.0 | 30.7.216.1 | 30.7.216.6 | 30.7.216.7 | 6 |
| 2 | 30.7.216.8/29 | 30.7.216.8 | 30.7.216.9 | 30.7.216.14 | 30.7.216.15 | 6 |
| 3 | 30.7.216.16/29 | 30.7.216.16 | 30.7.216.17 | 30.7.216.22 | 30.7.216.23 | 6 |
| 4 | 30.7.216.24/29 | 30.7.216.24 | 30.7.216.25 | 30.7.216.30 | 30.7.216.31 | 6 |
| 5 | 30.7.216.32/29 | 30.7.216.32 | 30.7.216.33 | 30.7.216.38 | 30.7.216.39 | 6 |
| 6 | 30.7.216.40/29 | 30.7.216.40 | 30.7.216.41 | 30.7.216.46 | 30.7.216.47 | 6 |
| 7 | 30.7.216.48/29 | 30.7.216.48 | 30.7.216.49 | 30.7.216.54 | 30.7.216.55 | 6 |
| 8 | 30.7.216.56/29 | 30.7.216.56 | 30.7.216.57 | 30.7.216.62 | 30.7.216.63 | 6 |
| 9 | 30.7.216.64/29 | 30.7.216.64 | 30.7.216.65 | 30.7.216.70 | 30.7.216.71 | 6 |
| 10 | 30.7.216.72/29 | 30.7.216.72 | 30.7.216.73 | 30.7.216.78 | 30.7.216.79 | 6 |
| 11 | 30.7.216.80/29 | 30.7.216.80 | 30.7.216.81 | 30.7.216.86 | 30.7.216.87 | 6 |
| 12 | 30.7.216.88/29 | 30.7.216.88 | 30.7.216.89 | 30.7.216.94 | 30.7.216.95 | 6 |
| 13 | 30.7.216.96/29 | 30.7.216.96 | 30.7.216.97 | 30.7.216.102 | 30.7.216.103 | 6 |
| 14 | 30.7.216.104/29 | 30.7.216.104 | 30.7.216.105 | 30.7.216.110 | 30.7.216.111 | 6 |
| 15 | 30.7.216.112/29 | 30.7.216.112 | 30.7.216.113 | 30.7.216.118 | 30.7.216.119 | 6 |
| 16 | 30.7.216.120/29 | 30.7.216.120 | 30.7.216.121 | 30.7.216.126 | 30.7.216.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.