u-blox LARA-R6001D in Japan
The u-blox LARA-R6001D rates good on all 4 networks in Japan (NTT docomo, KDDI (au), SoftBank and Rakuten Mobile).
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| NTT docomo | ✔ Good 75% | B1 B3 B19 B28 | — |
| KDDI (au) | ✔ Good 82% | B1 B3 B18 B26 B28 B41 | — |
| SoftBank | ✔ Good 100% | B1 B3 B8 | — |
| Rakuten Mobile | ✔ Good 100% | B3 B28 B18 B26 | — |
Better-rated models here
In Japan it is already among the best-rated models.
About the u-blox LARA-R6001D
- 4G B1 B2 B3 B4 B5 B7 B8 B12 B13 B18 B19 B20 B26 B28 B38 B39 B40 B41
The D version is data only; for North America, the LARA-R6401 in the same family adds B14, B66 and B71.
Network access: long-term roaming
Many globally deployed IoT devices use multi-network roaming SIMs that can attach to several networks in a country, but some countries restrict long-term roaming by foreign SIMs. A local SIM roaming domestically is not affected.
◐ Allowed under conditions: Allowed under certain conditions (one source so far).3
All networks and bands in Japan → · The u-blox LARA-R6001D in 46 countries →
Back to the home: ask, enter a model or bands, or compare models
Sources
- A LARA-R6 series product page: variants and bands u-blox · 2026-10-02
- C u-blox LARA-R6001D product listing (bands) everything RF · 2026-10-02
- C Permanent roaming in IoT: rules by country (2026) Thingsdata · 2026
