What is the default password for SoftBank routers?

There is no single SoftBank default password — it depends on the model. 1 of the 2 SoftBank models we track still ships a universal default password, for example Air Terminal 5 (also covers 2/3/4/4 NEXT) (user / user). 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 SoftBank routers?

Most SoftBank routers use 172.16.255.254 — 1 of the 2 SoftBank models we track with a documented admin address. The rest use 192.168.3.1 (1). Open http://172.16.255.254 in a browser on the router's own network, or check your exact model below.

Which SoftBank routers still ship a default password?

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

SoftBank router default passwords & logins

1 of the 2 SoftBank 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 SoftBank's own documentation.

Air Terminal 5 (also covers 2/3/4/4 NEXT)Air Terminal 6

FAQ

What is the default password for SoftBank routers?: There is no single SoftBank default password — it depends on the model. 1 of the 2 SoftBank models we track still ships a universal default password, for example Air Terminal 5 (also covers 2/3/4/4 NEXT) (user / user). 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 SoftBank routers?: Most SoftBank routers use 172.16.255.254 — 1 of the 2 SoftBank models we track with a documented admin address. The rest use 192.168.3.1 (1). Open http://172.16.255.254 in a browser on the router's own network, or check your exact model below.
Which SoftBank routers still ship a default password?: 1 of the 2 SoftBank models we track still ships a universal default password. See each model below for its exact login and credential type.

SoftBank credential history (2)

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

2026-08-10 Added to the directory — SoftBank Air Terminal 5 (also covers 2/3/4/4 NEXT) (static)
2026-08-10 Added to the directory — SoftBank Air Terminal 6 (label-unique)

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