Networking
IP Addresses
CIDR
IP Addresses and Subnets — A Developer's Practical Guide
Understanding IP addressing and subnetting is essential for configuring servers and designing cloud VPCs. Covers IPv4, CIDR, and subnetting.
Dev Utilities Team
••1 min read
Private IP ranges
| Range | CIDR | Use |
|---|---|---|
| 10.x.x.x | 10.0.0.0/8 | Large enterprise, cloud VPCs |
| 172.16–31.x.x | 172.16.0.0/12 | Medium networks |
| 192.168.x.x | 192.168.0.0/16 | Home/office LANs |
CIDR notation
/24 = 256 addresses, 254 usable hosts. /30 = 4 addresses, 2 usable hosts. /32 = single host.
Calculate subnets with our CIDR Calculator.
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