Quectel EC25-MX in Brazil
The Quectel EC25-MX rates good on 0 of 3 networks in Brazil. On Vivo it is limited, missing B3. On Claro it is limited, missing B3. On TIM it is limited, missing B3.
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| Vivo | ◐ Limited 63% | B5 B7 B28 | B3 |
| Claro | ◐ Limited 50% | B7 B28 | B3 |
| TIM | ◐ Limited 80% | B5 B28 | B3 |
Better-rated models here
- Quectel RM520N-GL 5G Sub-6 · global · Quectel · 3/3 Good
- Quectel EG912U-GL Cat 1 bis · global · Quectel · 3/3 Good
- Quectel EG25-G Cat 4 · global · Quectel · 3/3 Good
About the Quectel EC25-MX
- 4G B2 B4 B5 B7 B28 B66
Designed for Mexico: B4, B7 and B66 for Telcel, and B28, the only band Altán uses.
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: Brazil bans permanent roaming by foreign SIMs (Cullen International); IoT devices deployed in Brazil need a local operator’s SIM.3
All networks and bands in Brazil → · The Quectel EC25-MX in 46 countries →
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Sources
- A EC25 variants and their bands, as published by Deutsche Telekom IoT Quectel · 2021
- A EC25 Series specification (bands of every variant), as published by Mouser Quectel · 2020
- B IoT regulation in the Americas: permanent roaming legally permissible in most countries (Brazil bans it); no SIM registration in the US and Canada Cullen International · 2026-02
