Quectel RM520N-GL in Mexico
The Quectel RM520N-GL 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 100% | B4 B7 B66 | — |
| 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 RM520N-GL
- 4G B1 B2 B3 B4 B5 B7 B8 B12 B13 B14 B17 B18 B19 B20 B25 B26 B28 B29 B30 B32 B66 B71 B34 B38 B39 B40 B41 B42 B43 B48
- 5G n1 n2 n3 n5 n7 n8 n12 n13 n14 n18 n20 n25 n26 n28 n29 n30 n38 n40 n41 n48 n66 n70 n71 n75 n76 n77 n78 n79
Full 5G (eMBB, NSA and SA), not RedCap; B29, B32 and n29, n75, n76 are downlink only.
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 RM520N-GL in 46 countries →
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Sources
- A RM520N-GL 5G Specification (frequency bands: 5G NR, LTE-FDD, LTE-TDD) Quectel · 2026-10-06
- C Quectel RM520N-GL 5G module: 5G NR SA/NSA and LTE bands Sixfab · 2026-10-06
- 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
