Quectel EC25-EUX in China
The Quectel EC25-EUX rates good on 2 of 4 networks in China (China Unicom and China Broadnet). On China Mobile it is limited, missing B34 B39. On China Telecom it is limited, missing a coverage band.
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| China Mobile | ◐ Limited 71% | B3 B8 B38 B40 | B34 B39 |
| China Telecom | ◐ Limited 67% | B1 B3 B40 B41 | — |
| China Unicom | ✔ Good 100% | B1 B3 B8 B40 B41 | — |
| China Broadnet | ✔ Good 100% | B28 | — |
Better-rated models here
- Quectel RM520N-GL 5G Sub-6 · global · Quectel · 4/4 Good
- Quectel EG912U-GL Cat 1 bis · global · Quectel · 4/4 Good
- SIMCom SIM7600G-H Cat 4 · global · SIMCom · 4/4 Good
About the Quectel EC25-EUX
Cat 4 · Europe (with B28) · Quectel12
- 4G B1 B3 B7 B8 B20 B28 B38 B40 B41
Adds B28 over the EC25-E (listed as B28A, the lower half of 700 MHz) but has no B5.
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.
⚠ Long-term roaming by foreign SIMs is not allowed: Long-term use of foreign SIMs is not allowed; a domestic operator’s SIM is required.345
All networks and bands in China → · The Quectel EC25-EUX in 46 countries →
Back to the home: ask, enter a model or bands, or compare models
Sources
- A EC25 Series LTE Standard Specification: variants and their bands, as published by Deutsche Telekom IoT Quectel · 2020
- A EC25 Series specification (bands of every variant), as published by Mouser Quectel · 2020
- B Navigating permanent roaming for IoT: where it is prohibited and where operators restrict it Counterpoint Research · 2026-10-02
- C What is permanent roaming: countries where it is banned or effectively prohibited Eseye · 2026-10-02
- C Navigating permanent roaming challenges for IoT deployments Com4 · 2026-10-02
