Quectel EC25-MX in the United States
The Quectel EC25-MX rates good on 0 of 3 networks in the United States. On AT&T it is limited, missing B12 B17. On Verizon it is limited, missing B13. On T-Mobile it is limited, missing B12 B71.
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| AT&T | ◐ Limited 50% | B2 B4 B5 B66 | B12 B17 |
| Verizon | ◐ Limited 63% | B2 B4 B5 B66 | B13 |
| T-Mobile | ◐ Limited 38% | B2 B4 B66 | B12 B71 |
Better-rated models here
- Quectel RM520N-GL 5G Sub-6 · global · Quectel · 3/3 Good
- Quectel RG255C-GL 5G RedCap · global · Quectel · 3/3 Good
- Quectel BG77 LTE-M / NB-IoT · 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.
◐ No legal ban; it depends on the operators: No legal ban, but operators limit long-term roaming by foreign SIMs in their agreements. A US SIM (for example T-Mobile’s) roaming domestically onto other networks is not affected.345
All networks and bands in the United States → · 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
- B Navigating permanent roaming for IoT: where it is prohibited and where operators restrict it Counterpoint Research · 2026-10-02
- C Permanent roaming in IoT: rules by country (2026) Thingsdata · 2026
