Quectel EG21-G in Mexico
The Quectel EG21-G rates good on all 3 networks in Mexico (Telcel, AT&T and Altán).
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| Telcel | ✔ Good 83% | B4 B7 | — |
| AT&T | ✔ Good 100% | B2 B4 | — |
| Altán | ✔ Good 100% | B28 | — |
Better-rated models here
In Mexico it is already among the best-rated models.
About the Quectel EG21-G
- 4G B1 B2 B3 B4 B5 B7 B8 B12 B13 B18 B19 B20 B25 B26 B28 B38 B39 B40 B41
The same 4G bands as the EG25-G at Cat 1 speed (up to 10 Mbit/s), suited to low-data, cost-sensitive devices.
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.
◐ No legal ban; it depends on the operators: Permanent roaming is legally permissible (Cullen International: as in most of the Americas); whether it lasts depends on agreements between operators.3
All networks and bands in Mexico → · The Quectel EG21-G in 46 countries →
Back to the home: ask, enter a model or bands, or compare models
Sources
- A EG21-G LTE Standard Specification V1.2: bands Quectel · 2021-10
- B Quectel EG21-G product listing (bands) MC Technologies · 2026-10-02
- 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
