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Aircraft
HB-VTW
Common
- Mode S hex
- 4B3978
- Manufacturer
- Textron Aviation
- Serial number
- 525-1044
- Year built
- 20197 years old
- Operator
- Alpine Flightservice
- Country of registration
Switzerland
- First contact
- 14 May 2020, 14:24
- Last contact
- 10 Aug 2026, 17:01
- Logged visits
- 1,163
The station's story
- Cumulative contact time
- 381 h
- Distinct days
- 710
- Highest captured altitude
- 45,000 ft
- 1 corrupted frame(s) excluded from this maximum
- Discovery rank
- #37,853 of 57,441
- Longest contact
- 2 h 1 min
Observed callsigns
FSE (776 contacts, 2020-2024) · TSW (232 contacts, 2025-2026)
Operator as per the registry of 29 Jul 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| TSW4W | route not resolved | 29 May 2026, 16:4229 May 2026 | 29 May 2026, 17:01 | 10,150 ft | 282 |
| TSW4W | route not resolved | 28 May 2026, 21:0728 May 2026 | 28 May 2026, 21:16 | 31,000 ft | 166 |
| TSW4W | route not resolved | 21 May 2026, 17:1421 May 2026 | 21 May 2026, 17:31 | 13,475 ft | 930 |
| TSW4W | route not resolved | 19 May 2026, 08:3619 May 2026 | 19 May 2026, 08:58 | 27,750 ft | 1,513 |
| TSW4W | route not resolved | 18 May 2026, 13:2318 May 2026 | 18 May 2026, 13:31 | 17,575 ft | 294 |
| TSW4W | route not resolved | 18 May 2026, 10:2718 May 2026 | 18 May 2026, 10:53 | not transmitted | 1,592 |
| TSW4W | route not resolved | 18 May 2026, 08:1718 May 2026 | 18 May 2026, 08:39 | 26,000 ft | 781 |
| TSW4W | route not resolved | 17 May 2026, 14:3317 May 2026 | 17 May 2026, 14:50 | not transmitted | 941 |
| TSW4W | route not resolved | 16 May 2026, 20:4616 May 2026 | 16 May 2026, 21:04 | 34,000 ft | 798 |
| TSW4W | route not resolved | 16 May 2026, 00:5316 May 2026 | 16 May 2026, 01:23 | 40,000 ft | 2,830 |
| not transmitted | route not resolved | 15 May 2026, 14:3815 May 2026 | 15 May 2026, 14:48 | 33,000 ft | 4 |
| TSW4W | route not resolved | 8 May 2026, 11:038 May 2026 | 8 May 2026, 11:33 | 34,825 ft | 731 |
| TSW4W | route not resolved | 7 May 2026, 18:567 May 2026 | 7 May 2026, 19:33 | not transmitted | 2,079 |
| TSW4W | route not resolved | 7 May 2026, 13:277 May 2026 | 7 May 2026, 13:58 | 37,000 ft | 1,772 |
| TSW4W | route not resolved | 7 May 2026, 11:067 May 2026 | 7 May 2026, 11:30 | not transmitted | 1,530 |
| TSW4W | route not resolved | 6 May 2026, 09:316 May 2026 | 6 May 2026, 10:01 | 34,000 ft | 1,656 |
| TSW4W | route not resolved | 5 May 2026, 19:135 May 2026 | 5 May 2026, 19:49 | not transmitted | 2,708 |
| TSW4W | route not resolved | 5 May 2026, 07:575 May 2026 | 5 May 2026, 08:19 | 37,425 ft | 1,333 |
| TSW4W | route not resolved | 5 May 2026, 06:475 May 2026 | 5 May 2026, 07:12 | not transmitted | 2,117 |
| TSW4W | route not resolved | 3 May 2026, 08:173 May 2026 | 3 May 2026, 08:38 | 18,000 ft | 1,002 |
| TSW4W | route not resolved | 30 Apr 2026, 13:4130 Apr 2026 | 30 Apr 2026, 14:12 | not transmitted | 1,996 |
| TSW4W | route not resolved | 30 Apr 2026, 10:0630 Apr 2026 | 30 Apr 2026, 10:29 | 34,000 ft | 983 |
| TSW4W | route not resolved | 14 Apr 2026, 18:2714 Apr 2026 | 14 Apr 2026, 18:44 | 12,800 ft | 1,179 |
| TSW4W | route not resolved | 14 Apr 2026, 14:2214 Apr 2026 | 14 Apr 2026, 14:52 | 23,100 ft | 1,562 |
| TSW4W | route not resolved | 14 Apr 2026, 11:2714 Apr 2026 | 14 Apr 2026, 11:52 | 38,675 ft | 1,262 |
