172.16.0.0/16 (Private Network Range)
PrivateRFC 1918
172.16.0.0/16 at a glance
| CIDR block | 172.16.0.0/16 |
|---|---|
| First address | 172.16.0.0 |
| Last address | 172.16.255.255 |
| Total addresses | 65,536 |
| Subnet mask | 255.255.0.0 |
| Prefix length | /16 |
| Type | Private |
| Publicly routable | No |
| Defined in | RFC 1918 |
Open in CIDR calculator/16 subnet details
What is 172.16.0.0/16 used for?
172.16.0.0/16 is the first /16 of the private 172.16.0.0/12 range. It is often used for corporate networks, VPN client pools and lab environments. Check it does not overlap with Docker networks, which use the 172.17.0.0 to 172.31.0.0 /16s by default.
Common subnets of 172.16.0.0/16
Overlaps and conflicts
- Inside 172.16.0.0/12
FAQ
Is 172.16.0.0/16 private?
Yes. It is the first /16 inside the private 172.16.0.0/12 range (RFC 1918).
Does 172.16.0.0/16 conflict with Docker?
Not with the default bridge (172.17.0.0/16), but Docker allocates new user-defined networks from 172.17.0.0/16 to 172.31.0.0/16 and then 192.168.0.0/16. If your LAN uses another 172.x /16, set default-address-pools in daemon.json.