Quectel EC25-AF in the United States
The Quectel EC25-AF rates good on all 3 networks in the United States (AT&T, Verizon and T-Mobile).
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| AT&T | ✔ Good 90% | B2 B4 B5 B12 B66 | — |
| Verizon | ✔ Good 88% | B13 B2 B4 B5 B66 | — |
| T-Mobile | ✔ Good 88% | B2 B4 B12 B66 B71 | — |
Better-rated models here
In the United States it is already among the best-rated models.
About the Quectel EC25-AF
Cat 4 · North America · Quectel123
- 4G B2 B4 B5 B12 B13 B14 B66 B71
The North American version for Verizon, AT&T, T-Mobile, U.S. Cellular, Rogers and Telus; no B1, B3, B7 or B20, so not for Europe or Asia.
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.456
All networks and bands in the United States → · The Quectel EC25-AF in 46 countries →
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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
- C Quectel EC25-AF product listing (bands, North American carriers) everything RF · 2026-10-03
- 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
