China Unicom (China): 4G and 5G bands
China Unicom (China) runs 4G on B1, B3, B8, B40, B41; B8 is the coverage layer. 5G bands: n78, n1. 5G SA: live (redcap runs on sa); RedCap: commercial; 3G: closing province by province (zhejiang closed 2026-06-15); 2G: being switched off (company statement, 2021).
Check your module in China
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 |
|---|---|---|---|---|---|---|
| B1 | 2100 IMT | FDD | 1920–1980 | 2110–2170 | capacity layer | cross-checked123 |
| B3 | 1800 DCS | FDD | 1710–1785 | 1805–1880 | capacity layer | cross-checked123 |
| B8 | 900 E-GSM | FDD | 880–915 | 925–960 | coverage layer | cross-checked123 |
| B40 | 2300 S-Band | TDD | 2300–2400 | 2300–2400 | capacity layer | cross-checked123 |
| B41 | 2500 BRS | TDD | 2496–2690 | 2496–2690 | capacity layer | cross-checked123 |
| n78 | 3500 C-Band | TDD | 3300–3800 | 3300–3800 | capacity layer | cross-checked12 |
| n1 | 2100 IMT | FDD | 1920–1980 | 2110–2170 | capacity layer | cross-checked12 |
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 | Live (RedCap runs on SA)4 |
|---|---|
| RedCap | Commercial4 |
| LTE-M | Not in GSMA list5 |
| NB-IoT | Commercial5 |
| 2G | Being switched off (company statement, 2021)6 |
| 3G | Closing province by province (Zhejiang closed 2026-06-15)7 |
Our dongles on this network
Supports B1, B3, B8 (coverage layer). Missing B40, B41.
Supports B1, B3, B8 (coverage layer). Missing B40, B41.
Supports B1, B3, B8 (coverage layer), B40, B41.
5G: 5G RedCap usable (n78, n1)
Sources
- C China F40 guide (sources: aode8.com, CSDN) Hyper Nexus · 2026-09
- C China operators’ 5G / 4G spectrum overview Aodebiao Xuexi Wang (奥德彪学习网) · 2026-09
- C LTE bands of China’s three operators CSDN · 2026-09
- B Viewpoint: 5G RedCap – accelerating the next phase of cellular IoT GSA · 2026-04
- B Mobile IoT network launches (Nov 2025) GSMA · 2025-11
- B China Unicom to exit 2G; China Telecom began closing 3G in Yunnan (June 2020) IT Home (IT之家) · 2021
- B 2G/3G switch-off sprint in China; Korea’s WCDMA rights expire 2026-12-31 IT Times (IT时报), via 36Kr · 2026-06-08
