F40 in the United States
The F40 rates good on 2 of 3 networks in the United States (AT&T and T-Mobile). On Verizon it is limited, missing B13. 5G RedCap is available on AT&T and T-Mobile.
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| AT&T | ✔ Good 20% 5G | B5 | B2 B4 B12 B17 |
| Verizon | ◐ Limited 25% | B5 | B13 |
| T-Mobile | ✔ Good 13% 5G | B41 | B2 B12 B66 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 F40
5G RedCap · Hyper Nexus dongle1
- 4G B1 B3 B5 B8 B28 B34 B38 B39 B40 B41
- 5G RedCap n1 n3 n5 n8 n28 n41 n78
Lightweight 5G RedCap dongle (needs 5G SA); 4G as emergency fallback.
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.234
All networks and bands in the United States → · The F40 in 46 countries →
The F40 product page · Back to the home: ask, enter a model or bands, or compare models
Sources
- A Product specifications and certifications (manufacturer data) Hyper Nexus · 2026-09
- 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
