Band encyclopedia
B66 · 1700/2100 Extended AWS
B66 is a 3GPP LTE (4G) band (1700/2100 Extended AWS), FDD duplex, uplink 1710–1780 MHz and downlink 2110–2200 MHz. It is a capacity layer: wide and fast, with shorter reach than the low bands. Of the 155 networks we check, 7 use it (United States, Canada, Mexico).12
Will your device work on B66?
- MF833V✘ no B66Global industrial LTE Cat 4, USB-Afrom US$45 · MOQ 100
- Dongle 400✘ no B66For industrial AR glasses, USB-C, IP66from US$45 · MOQ 2,000
- F40✘ no B665G RedCap dongle (needs 5G SA), 4G fallbackfrom US$46 · MOQ 2,000
None of our three devices covers B66 yet. Tell us your project and we will recommend a module that does.
Specification
| Type | LTE (4G) |
|---|---|
| Duplex | FDD |
| Uplink | 1710–1780 MHz |
| Downlink | 2110–2200 MHz |
| Channel bandwidth | 1.4, 3, 5, 10, 15, 20 MHz |
| Layer | Capacity layer |
| Note | 2180–2200 MHz for CA only |
| Related bands | contains B4, B10; same frequencies as 5G NR band n66 |
Who uses it
| Operator | Country | Check |
|---|---|---|
| Rogers | Canada | ✔ cross-checked |
| Bell | Canada | ✔ cross-checked |
| TELUS | Canada | ✔ cross-checked |
| Telcel | Mexico | ✔ cross-checked |
| AT&T | United States | ✔ cross-checked |
| Verizon | United States | ✔ cross-checked |
| T-Mobile | United States | ✔ cross-checked |
| Claro | Chile | single source (not scored) |
| WOM | Chile | single source (not scored) |
| Bitel | Peru | single source (not scored) |
What it means for IoT devices
- B66 adds capacity in United States, Canada, Mexico: it raises city speeds, but coverage comes from the low bands.
Our dongles (MF833V, Dongle 400, F40) do not support B66.
Sources
- A TS 36.101 Rel-19, Table 5.5-1 E-UTRA operating bands 3GPP (via iTecSpec) · 2026-09-30
- C LTE frequency bands Wikipedia · 2026-09-30
