What is the default password for T-Mobile routers?

T-Mobile routers have no universal default password. All 1 T-Mobile models we track either make you set a password during first setup, print a password unique to your unit on the device label, or are managed only from the app — so there is no shared password to look up. Open your exact model below for its cited login.

What is the default IP address for T-Mobile routers?

Every T-Mobile model we track with a documented admin address uses 192.168.12.1. Open http://192.168.12.1 in a browser on the router's own network.

Which T-Mobile routers still ship a default password?

None of the 1 T-Mobile models we track ship a universal default password — each one either forces a password at setup, prints a unique password on the device label, or is app-managed only.

T-Mobile router default passwords & logins

None of the 1 T-Mobile models we track ship a universal default password. Every default below is cited to T-Mobile's own documentation.

T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom)

FAQ

What is the default password for T-Mobile routers?: T-Mobile routers have no universal default password. All 1 T-Mobile models we track either make you set a password during first setup, print a password unique to your unit on the device label, or are managed only from the app — so there is no shared password to look up. Open your exact model below for its cited login.
What is the default IP address for T-Mobile routers?: Every T-Mobile model we track with a documented admin address uses 192.168.12.1. Open http://192.168.12.1 in a browser on the router's own network.
Which T-Mobile routers still ship a default password?: None of the 1 T-Mobile models we track ship a universal default password — each one either forces a password at setup, prints a unique password on the device label, or is app-managed only.

T-Mobile credential history (1)

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

2026-07-14 Added to the directory — T-Mobile T-Mobile 5G Home Internet Gateway (Nokia/Arcadyan/Sagemcom) (app-only)

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