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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
- 11 Aug 2026, 08:50
- Logged visits
- 1,164
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 57,065
- 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 | 30 Aug 2025, 15:5430 Aug 2025 | 30 Aug 2025, 16:26 | 40,000 ft | 1,316 |
| TSW4W | route not resolved | 29 Aug 2025, 14:4529 Aug 2025 | 29 Aug 2025, 15:04 | 12,950 ft | 842 |
| TSW4W | route not resolved | 29 Aug 2025, 09:4929 Aug 2025 | 29 Aug 2025, 10:13 | 33,000 ft | 904 |
| TSW4W | route not resolved | 27 Aug 2025, 15:4727 Aug 2025 | 27 Aug 2025, 16:21 | 36,000 ft | 1,180 |
| TSW4W | route not resolved | 24 Aug 2025, 19:1024 Aug 2025 | 24 Aug 2025, 19:32 | 18,925 ft | 1,145 |
| TSW4W | route not resolved | 24 Aug 2025, 17:4924 Aug 2025 | 24 Aug 2025, 18:31 | not transmitted | 2,974 |
| TSW4W | route not resolved | 21 Aug 2025, 13:2421 Aug 2025 | 21 Aug 2025, 13:59 | 40,000 ft | 1,408 |
| TSW4W | route not resolved | 21 Aug 2025, 11:0021 Aug 2025 | 21 Aug 2025, 11:32 | not transmitted | 2,467 |
| TSW4W | route not resolved | 20 Aug 2025, 09:1220 Aug 2025 | 20 Aug 2025, 09:23 | 18,000 ft | 425 |
| TSW4W | route not resolved | 13 Aug 2025, 13:2913 Aug 2025 | 13 Aug 2025, 14:03 | 41,000 ft | 1,416 |
| not transmitted | route not resolved | 13 Aug 2025, 11:4613 Aug 2025 | 13 Aug 2025, 11:47 | 18,000 ft | no position received |
| TSW4W | route not resolved | 12 Aug 2025, 09:0712 Aug 2025 | 12 Aug 2025, 09:24 | 24,975 ft | 406 |
| TSW4W | route not resolved | 11 Aug 2025, 17:1811 Aug 2025 | 11 Aug 2025, 18:01 | not transmitted | 3,023 |
| not transmitted | route not resolved | 11 Aug 2025, 12:5011 Aug 2025 | 11 Aug 2025, 12:56 | 39,825 ft | no position received |
| not transmitted | route not resolved | 9 Aug 2025, 16:349 Aug 2025 | 9 Aug 2025, 16:34 | 9,000 ft | no position received |
| TSW4W | route not resolved | 9 Aug 2025, 15:289 Aug 2025 | 9 Aug 2025, 15:36 | 6,875 ft | 339 |
| TSW4W | route not resolved | 9 Aug 2025, 14:309 Aug 2025 | 9 Aug 2025, 14:44 | 6,625 ft | 5 |
| TSW4W | route not resolved | 8 Aug 2025, 18:468 Aug 2025 | 8 Aug 2025, 18:52 | 29,000 ft | 57 |
| TSW4W | route not resolved | 4 Aug 2025, 13:284 Aug 2025 | 4 Aug 2025, 13:45 | 12,025 ft | 553 |
| TSW4W | route not resolved | 4 Aug 2025, 11:124 Aug 2025 | 4 Aug 2025, 11:34 | 30,000 ft | 645 |
| TSW4W | route not resolved | 3 Aug 2025, 12:093 Aug 2025 | 3 Aug 2025, 12:36 | 25,150 ft | 1,384 |
| TSW4W | route not resolved | 2 Aug 2025, 19:102 Aug 2025 | 2 Aug 2025, 19:33 | 34,000 ft | 1,123 |
| TSW4W | route not resolved | 30 Jul 2025, 13:4430 Jul 2025 | 30 Jul 2025, 14:03 | 15,700 ft | 804 |
| not transmitted | route not resolved | 27 Jul 2025, 14:4827 Jul 2025 | 27 Jul 2025, 14:56 | 23,000 ft | no position received |
| not transmitted | route not resolved | 15 Jul 2025, 17:5415 Jul 2025 | 15 Jul 2025, 17:56 | 22,300 ft | no position received |
