u-blox SARA-R510M8S in the United States
The u-blox SARA-R510M8S 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 u-blox SARA-R510M8S
LTE-M / NB-IoT · global · u-blox12
- 4G B1 B2 B3 B4 B5 B8 B12 B13 B18 B19 B20 B25 B26 B28 B66 B71 B85
- LTE-M and NB-IoT assessed together
LTE-M and NB-IoT are assessed together: B25 is LTE-M only, B66, B71 and B85 are NB-IoT only, and the “00” versions do not support NB-IoT.
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 u-blox SARA-R510M8S in 46 countries →
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Sources
- A SARA-R5 series data sheet UBX-19016638: LTE bands by technology (as mirrored by alldatasheet) u-blox · 2026-10-02
- B u-blox SARA-R510S / SARA-R510M8S product specifications (LTE bands) Macnica · 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
- 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
