/28 Subnet Mask Reference (255.255.255.240)
Cloud NAT gateways, bastion subnets, or small database tiers (14 usable hosts).
| CIDR Prefix | /28 |
|---|---|
| Subnet Mask | 255.255.255.240 |
| Wildcard Mask (Cisco / ACL) | 0.0.0.15 |
| Total IPv4 Addresses | 16 |
| Usable Host IPs | 14 |
| Binary Subnet Mask | 11111111.11111111.11111111.11110000 |
| Example Block (10.0.0.0/28) | 10.0.0.0 – 10.0.0.15 |
| Example Usable Hosts | 10.0.0.1 – 10.0.0.14 |
Need to compute custom IP ranges? Try the Interactive Subnet Calculator or VLSM Splitter.