16.64.5.0/25
PublicClass A — /25 prefix — 126 usable hosts
Network address — the base address of the block (16.64.5.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 16.64.5.127 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 | 16.64.5.0/25 |
| Network Address | 16.64.5.0 |
| Broadcast Address | 16.64.5.127 |
| 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 | 16.64.5.1 |
| Last Usable IP | 16.64.5.126 |
| Network (Hex) | 0x10400500 |
| Broadcast (Hex) | 0x1040057F |
| 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 16.64.5.0/25 into 2 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 16.64.5.0/26 | 16.64.5.0 | 16.64.5.1 | 16.64.5.62 | 16.64.5.63 | 62 |
| 2 | 16.64.5.64/26 | 16.64.5.64 | 16.64.5.65 | 16.64.5.126 | 16.64.5.127 | 62 |
Split 16.64.5.0/25 into 4 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 16.64.5.0/27 | 16.64.5.0 | 16.64.5.1 | 16.64.5.30 | 16.64.5.31 | 30 |
| 2 | 16.64.5.32/27 | 16.64.5.32 | 16.64.5.33 | 16.64.5.62 | 16.64.5.63 | 30 |
| 3 | 16.64.5.64/27 | 16.64.5.64 | 16.64.5.65 | 16.64.5.94 | 16.64.5.95 | 30 |
| 4 | 16.64.5.96/27 | 16.64.5.96 | 16.64.5.97 | 16.64.5.126 | 16.64.5.127 | 30 |
Split 16.64.5.0/25 into 8 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 16.64.5.0/28 | 16.64.5.0 | 16.64.5.1 | 16.64.5.14 | 16.64.5.15 | 14 |
| 2 | 16.64.5.16/28 | 16.64.5.16 | 16.64.5.17 | 16.64.5.30 | 16.64.5.31 | 14 |
| 3 | 16.64.5.32/28 | 16.64.5.32 | 16.64.5.33 | 16.64.5.46 | 16.64.5.47 | 14 |
| 4 | 16.64.5.48/28 | 16.64.5.48 | 16.64.5.49 | 16.64.5.62 | 16.64.5.63 | 14 |
| 5 | 16.64.5.64/28 | 16.64.5.64 | 16.64.5.65 | 16.64.5.78 | 16.64.5.79 | 14 |
| 6 | 16.64.5.80/28 | 16.64.5.80 | 16.64.5.81 | 16.64.5.94 | 16.64.5.95 | 14 |
| 7 | 16.64.5.96/28 | 16.64.5.96 | 16.64.5.97 | 16.64.5.110 | 16.64.5.111 | 14 |
| 8 | 16.64.5.112/28 | 16.64.5.112 | 16.64.5.113 | 16.64.5.126 | 16.64.5.127 | 14 |
Split 16.64.5.0/25 into 16 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 16.64.5.0/29 | 16.64.5.0 | 16.64.5.1 | 16.64.5.6 | 16.64.5.7 | 6 |
| 2 | 16.64.5.8/29 | 16.64.5.8 | 16.64.5.9 | 16.64.5.14 | 16.64.5.15 | 6 |
| 3 | 16.64.5.16/29 | 16.64.5.16 | 16.64.5.17 | 16.64.5.22 | 16.64.5.23 | 6 |
| 4 | 16.64.5.24/29 | 16.64.5.24 | 16.64.5.25 | 16.64.5.30 | 16.64.5.31 | 6 |
| 5 | 16.64.5.32/29 | 16.64.5.32 | 16.64.5.33 | 16.64.5.38 | 16.64.5.39 | 6 |
| 6 | 16.64.5.40/29 | 16.64.5.40 | 16.64.5.41 | 16.64.5.46 | 16.64.5.47 | 6 |
| 7 | 16.64.5.48/29 | 16.64.5.48 | 16.64.5.49 | 16.64.5.54 | 16.64.5.55 | 6 |
| 8 | 16.64.5.56/29 | 16.64.5.56 | 16.64.5.57 | 16.64.5.62 | 16.64.5.63 | 6 |
| 9 | 16.64.5.64/29 | 16.64.5.64 | 16.64.5.65 | 16.64.5.70 | 16.64.5.71 | 6 |
| 10 | 16.64.5.72/29 | 16.64.5.72 | 16.64.5.73 | 16.64.5.78 | 16.64.5.79 | 6 |
| 11 | 16.64.5.80/29 | 16.64.5.80 | 16.64.5.81 | 16.64.5.86 | 16.64.5.87 | 6 |
| 12 | 16.64.5.88/29 | 16.64.5.88 | 16.64.5.89 | 16.64.5.94 | 16.64.5.95 | 6 |
| 13 | 16.64.5.96/29 | 16.64.5.96 | 16.64.5.97 | 16.64.5.102 | 16.64.5.103 | 6 |
| 14 | 16.64.5.104/29 | 16.64.5.104 | 16.64.5.105 | 16.64.5.110 | 16.64.5.111 | 6 |
| 15 | 16.64.5.112/29 | 16.64.5.112 | 16.64.5.113 | 16.64.5.118 | 16.64.5.119 | 6 |
| 16 | 16.64.5.120/29 | 16.64.5.120 | 16.64.5.121 | 16.64.5.126 | 16.64.5.127 | 6 |
IP Address Sample
Showing first 16 of 128 total IPs.