Rakuten Mobile (Japan): 4G and 5G bands
Rakuten Mobile (Japan) runs 4G on B3, B28, B18, B26; B28, B18, B26 are the coverage layer. 5G bands: n77, n257. 5G SA: not yet (nsa only); RedCap: not launched; 3G: never ran 3g; 2G: never ran 2g.
Check your module in Japan
Results cover the 4 networks here; the home page checks every country at once.
Bands in detail
| Band | Name | Duplex | Uplink MHz | Downlink MHz | Layer | Checked |
|---|---|---|---|---|---|---|
| B3 | 1800 DCS | FDD | 1710–1785 | 1805–1880 | capacity layer | cross-checked12 |
| B28 | 700 APT | FDD | 703–748 | 758–803 | coverage layer | cross-checked13 |
| B18 | 800 Lower (Japan) | FDD | 815–830 | 860–875 | coverage layer | cross-checked14 |
| B26 | 850 Extended Cellular | FDD | 814–849 | 859–894 | coverage layer | cross-checked14 |
| n77 | 3700 C-Band | TDD | 3300–4200 | 3300–4200 | capacity layer | single source1 |
| n257 | 28 GHz mmWave | TDD | 26500–29500 | 26500–29500 | capacity layer | single source1 |
Frequencies are from the 3GPP specifications. “Single source” means only one community source lists the band; it is shown but not scored.
Network status
| 5G SA | Not yet (NSA only)5 |
|---|---|
| RedCap | Not launched |
| LTE-M | Not in GSMA list6 |
| NB-IoT | Not in GSMA list6 |
| 2G | Never ran 2G7 |
| 3G | Never ran 3G7 |
Our dongles on this network
Supports B3. B26 only partly (device has subset B5). Missing B28 (coverage layer), B18 (coverage layer).
Supports B3. B26 only partly (device has subset B5). Missing B28 (coverage layer), B18 (coverage layer).
Supports B3, B28 (coverage layer). B26 only partly (device has subset B5). Missing B18 (coverage layer).
5G: No common 5G band
Sources
- C Frequency checker: Japan Kimovil · 2026-09
- B Rakuten Mobile wins the 700 MHz platinum band (4G so far on 1.7 GHz, Band 3, only) ITmedia Mobile · 2023-10-23
- B Rakuten Mobile starts commercial platinum-band service on 700 MHz (Band 28) Appllio · 2024-06-27
- B Rakuten users roamed on KDDI’s platinum band President Online · 2023
- B Rakuten launched 5G on NSA; SA planned 5G Observatory · 2020
- B Mobile IoT network launches (Nov 2025) GSMA · 2025-11
- B Japan’s 5G launches; Rakuten starts 4G with KDDI roaming RCR Wireless · 2020-03
