Band encyclopedia
B41 · 2500 BRS
B41 is a 3GPP LTE (4G) band (2500 BRS), TDD duplex, uplink 2496–2690 MHz and downlink 2496–2690 MHz. It is a capacity layer: wide and fast, with shorter reach than the low bands. Of the 155 networks we check, 9 use it (United States, China, Japan, India, Thailand, Philippines).12
Will your device work on B41?
Specification
| Type | LTE (4G) |
|---|---|
| Duplex | TDD |
| Uplink | 2496–2690 MHz |
| Downlink | 2496–2690 MHz |
| Channel bandwidth | 5, 10, 15, 20 MHz |
| Layer | Capacity layer |
| Related bands | contains B38; same frequencies as 5G NR band n41 |
Who uses it
| Operator | Country | Check |
|---|---|---|
| China Telecom | China | ✔ cross-checked |
| China Unicom | China | ✔ cross-checked |
| Vi | India | ✔ cross-checked |
| BSNL | India | ✔ cross-checked |
| KDDI (au) | Japan | ✔ cross-checked |
| Globe | Philippines | ✔ cross-checked |
| DITO | Philippines | ✔ cross-checked |
| True | Thailand | ✔ cross-checked |
| T-Mobile | United States | ✔ cross-checked |
| stc | Bahrain | single source (not scored) |
| SoftBank | Japan | single source (not scored) |
| Smart | Philippines | single source (not scored) |
| Mobily | Saudi Arabia | single source (not scored) |
| AIS | Thailand | single source (not scored) |
What it means for IoT devices
- B41 adds capacity in United States, China, Japan, India, Thailand, Philippines: it raises city speeds, but coverage comes from the low bands.
- This is a TDD band: FDD-only modules cannot use it.
F40 support B41.
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
