Teltonika TRB140 (1*****) in Turkey
The Teltonika TRB140 (1*****) rates good on 0 of 3 networks in Turkey. On Turkcell it is limited, missing B20. On Vodafone it is limited, missing B20. On Türk Telekom it is limited, missing B20.
Network by network
| Network | Verdict | Bands in use it supports | Core bands missing |
|---|---|---|---|
| Turkcell | ◐ Limited 71% | B1 B3 B7 B8 | B20 |
| Vodafone | ◐ Limited 50% | B3 B7 | B20 |
| Türk Telekom | ◐ Limited 50% | B3 B7 | B20 |
Better-rated models here
- Huawei E5576-320 MiFi · Cat 4 · Pocket Wi-Fi · Europe, Asia and Africa version · Huawei · 3/3 Good
- Huawei E5577-320 MiFi · Cat 4 · Pocket Wi-Fi with display · Europe, Asia and Middle East version · Huawei · 3/3 Good
- TP-Link M7350 MiFi · Cat 4 · Pocket Wi-Fi · Europe and Asia-Pacific version · TP-Link · 3/3 Good
About the Teltonika TRB140 (1*****)
DTU / Gateway · Cat 4 · DTU / industrial gateway · South America, Australia, New Zealand · Teltonika12
- 4G B1 B2 B3 B4 B5 B7 B8 B28 B40
No B20 (the 800 MHz coverage layer in Europe): it works in European cities, but suburban and indoor coverage will be weaker; and no B12, B13, B66 or B71, so not for the United States.
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.
⚠ Long-term roaming by foreign SIMs is not allowed: Turkish law prohibits long-term roaming by foreign SIMs (Com4); foreign devices on local SIMs must register their IMEI and pay a fee within 120 days (one source says 180), and registration needs a Turkish tax ID.3456
All networks and bands in Turkey → · The Teltonika TRB140 (1*****) in 46 countries →
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Sources
- A TRB140 datasheet: bands of the 0***** and 1***** versions Teltonika Networks · 2020
- C Teltonika TRB140 (Australian version) LTE bands Powertec · 2026-10-03
- C Navigating permanent roaming challenges for IoT deployments Com4 · 2026-10-02
- C Permanent roaming in IoT: rules by country (2026) Thingsdata · 2026
- C Cellular roaming gotchas: Turkey’s IMEI registration needs a Turkish tax ID; Indonesia requires IMEI registration too Hubble · 2026
- C Turkey: the 2015 4G auction (800, 900, 1800, 2100, 2600 MHz) and the 120-day IMEI grace period Prepaid Data SIM Card Wiki · 2026
