Why home networks use 192.168.x.x (private IP ranges explained) — by Spiff on Super User

beginnerforumCC BY-SA (Stack Exchange; version depends on post date)

Explains RFC 1918, which reserves address blocks (10.x, 172.16-31.x and 192.168.x) for private networks, and how NAT on your router lets every home reuse them. Includes the history of why it works this way.

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Source: Why home networks use 192.168.x.x (private IP ranges explained) by Spiff on Super User. Licence: CC BY-SA (Stack Exchange; version depends on post date).

Source reviewed: 2026-11-02
Link checked: Not yet
Tested hands-on: Not by Oddbyte.Me

ip addressrfc 1918natprivate network

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