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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 21.07.2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| TSW4W | route not resolved | 4 Jul 2026, 13:014 Jul 2026 | 4 Jul 2026, 13:12 | 16,675 ft | 341 |
| TSW4W | route not resolved | 4 Jul 2026, 11:224 Jul 2026 | 4 Jul 2026, 11:41 | 10,225 ft | 408 |
| TSW4W | route not resolved | 3 Jul 2026, 18:053 Jul 2026 | 3 Jul 2026, 18:32 | 29,000 ft | 465 |
| TSW4W | route not resolved | 3 Jul 2026, 16:583 Jul 2026 | 3 Jul 2026, 17:28 | not transmitted | 1,760 |
| TSW4W | route not resolved | 3 Jul 2026, 07:253 Jul 2026 | 3 Jul 2026, 07:58 | 23,000 ft | 429 |
| TSW4W | route not resolved | 2 Jul 2026, 19:182 Jul 2026 | 2 Jul 2026, 19:52 | not transmitted | 2,408 |
| TSW4W | route not resolved | 2 Jul 2026, 08:242 Jul 2026 | 2 Jul 2026, 08:48 | 34,375 ft | 1,179 |
| not transmitted | route not resolved | 25 Jun 2026, 15:0525 Jun 2026 | 25 Jun 2026, 15:05 | 31,000 ft | no position received |
| TSW4W | route not resolved | 22 Jun 2026, 07:1222 Jun 2026 | 22 Jun 2026, 07:35 | 34,000 ft | 1,398 |
| TSW4W | route not resolved | 14 Jun 2026, 18:1714 Jun 2026 | 14 Jun 2026, 18:31 | 15,000 ft | 408 |
| TSW4W | route not resolved | 14 Jun 2026, 15:2414 Jun 2026 | 14 Jun 2026, 15:38 | 24,000 ft | 225 |
| TSW4W | route not resolved | 13 Jun 2026, 20:3013 Jun 2026 | 13 Jun 2026, 20:48 | 14,825 ft | 1,142 |
| TSW4W | route not resolved | 13 Jun 2026, 17:0313 Jun 2026 | 13 Jun 2026, 17:40 | 34,750 ft | 1,180 |
| TSW4W | route not resolved | 12 Jun 2026, 18:0612 Jun 2026 | 12 Jun 2026, 18:46 | 21,000 ft | 1,367 |
| TSW4W | route not resolved | 11 Jun 2026, 18:3111 Jun 2026 | 11 Jun 2026, 19:01 | 40,000 ft | 1,301 |
| not transmitted | route not resolved | 11 Jun 2026, 14:5111 Jun 2026 | 11 Jun 2026, 14:51 | 15,100 ft | no position received |
| TSW4W | route not resolved | 8 Jun 2026, 14:068 Jun 2026 | 8 Jun 2026, 14:33 | 32,000 ft | 644 |
| TSW4W | route not resolved | 8 Jun 2026, 11:378 Jun 2026 | 8 Jun 2026, 12:10 | 27,525 ft | 801 |
| not transmitted | route not resolved | 5 Jun 2026, 11:245 Jun 2026 | 5 Jun 2026, 11:37 | 33,000 ft | 2 |
| TSW4W | route not resolved | 3 Jun 2026, 14:203 Jun 2026 | 3 Jun 2026, 14:34 | 20,000 ft | 266 |
| TSW4W | route not resolved | 2 Jun 2026, 18:082 Jun 2026 | 2 Jun 2026, 18:45 | 40,950 ft | 1,143 |
| TSW4W | route not resolved | 31 May 2026, 18:0331 May 2026 | 31 May 2026, 18:22 | 14,875 ft | 664 |
| TSW4W | route not resolved | 31 May 2026, 09:4331 May 2026 | 31 May 2026, 10:10 | 40,000 ft | 974 |
| TSW4W | route not resolved | 30 May 2026, 17:1630 May 2026 | 30 May 2026, 17:31 | 21,075 ft | 303 |
| not transmitted | route not resolved | 29 May 2026, 18:0229 May 2026 | 29 May 2026, 18:25 | 40,000 ft | 5 |
