What is the default password for O2 Czech Republic routers?

There is no single O2 Czech Republic default password — it depends on the model. 1 of the 2 O2 Czech Republic models we track still ships a universal default password, for example ZTE ZXHN H168N (admin / admin). The other 1 make you set a password during setup, print a unique one on the device label, or are managed only from the app. Open your exact model below for its cited credentials.

What is the default IP address for O2 Czech Republic routers?

Every O2 Czech Republic model we track with a documented admin address uses 10.0.0.138. Open http://10.0.0.138 in a browser on the router's own network.

Which O2 Czech Republic routers still ship a default password?

1 of the 2 O2 Czech Republic models we track still ships a universal default password. See each model below for its exact login and credential type.

O2 Czech Republic router default passwords & logins

1 of the 2 O2 Czech Republic models we track still ships a universal default password — the rest force a setup password, print a unique one on the label, or are app-only. Every default below is cited to O2 Czech Republic's own documentation.

O2 GateWay (ZyXEL)ZTE ZXHN H168N

FAQ

What is the default password for O2 Czech Republic routers?: There is no single O2 Czech Republic default password — it depends on the model. 1 of the 2 O2 Czech Republic models we track still ships a universal default password, for example ZTE ZXHN H168N (admin / admin). The other 1 make you set a password during setup, print a unique one on the device label, or are managed only from the app. Open your exact model below for its cited credentials.
What is the default IP address for O2 Czech Republic routers?: Every O2 Czech Republic model we track with a documented admin address uses 10.0.0.138. Open http://10.0.0.138 in a browser on the router's own network.
Which O2 Czech Republic routers still ship a default password?: 1 of the 2 O2 Czech Republic models we track still ships a universal default password. See each model below for its exact login and credential type.

O2 Czech Republic credential history (2)

Every addition, credential change, or removal we've recorded for O2 Czech Republicmodels, oldest first — the record IEEE-style public registries don't keep for router manufacturers.

2026-09-28 Added to the directory — O2 Czech Republic ZTE ZXHN H168N (static)
2026-09-28 Added to the directory — O2 Czech Republic O2 GateWay (ZyXEL) (label-unique)

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