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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
- #37,854 of 57,068
- 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 | 31 Mar 2025, 12:3831 Mar 2025 | 31 Mar 2025, 12:54 | 13,525 ft | 582 |
| TSW4W | route not resolved | 30 Mar 2025, 18:5630 Mar 2025 | 30 Mar 2025, 19:19 | 28,000 ft | 842 |
| not transmitted | route not resolved | 28 Mar 2025, 14:3228 Mar 2025 | 28 Mar 2025, 14:32 | 29,000 ft | no position received |
| TSW4W | route not resolved | 26 Mar 2025, 13:5126 Mar 2025 | 26 Mar 2025, 14:02 | 15,550 ft | 671 |
| TSW4W | route not resolved | 26 Mar 2025, 12:1626 Mar 2025 | 26 Mar 2025, 12:32 | 26,000 ft | 753 |
| not transmitted | route not resolved | 23 Feb 2025, 16:2623 Feb 2025 | 23 Feb 2025, 16:33 | 26,925 ft | 25 |
| not transmitted | route not resolved | 21 Feb 2025, 14:5421 Feb 2025 | 21 Feb 2025, 15:21 | 6,350 ft | 128 |
| not transmitted | route not resolved | 21 Feb 2025, 10:3621 Feb 2025 | 21 Feb 2025, 10:59 | 16,000 ft | 418 |
| not transmitted | route not resolved | 20 Feb 2025, 17:0020 Feb 2025 | 20 Feb 2025, 17:05 | 12,100 ft | 64 |
| not transmitted | route not resolved | 20 Feb 2025, 09:4120 Feb 2025 | 20 Feb 2025, 09:44 | 37,825 ft | no position received |
| not transmitted | route not resolved | 16 Jan 2025, 13:1416 Jan 2025 | 16 Jan 2025, 13:35 | 13,600 ft | 1,564 |
| not transmitted | route not resolved | 16 Jan 2025, 11:1916 Jan 2025 | 16 Jan 2025, 11:35 | 22,000 ft | 869 |
| not transmitted | route not resolved | 10 Jan 2025, 18:3610 Jan 2025 | 10 Jan 2025, 19:00 | 12,100 ft | 1,098 |
| not transmitted | route not resolved | 10 Jan 2025, 17:3810 Jan 2025 | 10 Jan 2025, 17:59 | not transmitted | 1,006 |
| not transmitted | route not resolved | 9 Jan 2025, 14:379 Jan 2025 | 9 Jan 2025, 15:03 | 31,325 ft | 441 |
| not transmitted | route not resolved | 9 Jan 2025, 10:439 Jan 2025 | 9 Jan 2025, 11:01 | 30,000 ft | 894 |
| not transmitted | route not resolved | 8 Jan 2025, 19:538 Jan 2025 | 8 Jan 2025, 20:07 | 14,050 ft | 1,199 |
| not transmitted | route not resolved | 6 Jan 2025, 12:256 Jan 2025 | 6 Jan 2025, 12:41 | 31,000 ft | 154 |
| not transmitted | route not resolved | 6 Jan 2025, 10:546 Jan 2025 | 6 Jan 2025, 11:27 | 6,675 ft | 2,590 |
| not transmitted | route not resolved | 30 Dec 2024, 18:2830 Dec 2024 | 30 Dec 2024, 18:47 | 13,350 ft | 994 |
| not transmitted | route not resolved | 30 Dec 2024, 14:4430 Dec 2024 | 30 Dec 2024, 15:30 | 34,000 ft | 1,776 |
| not transmitted | route not resolved | 30 Dec 2024, 13:2830 Dec 2024 | 30 Dec 2024, 13:54 | not transmitted | 2,090 |
| not transmitted | route not resolved | 21 Dec 2024, 16:0921 Dec 2024 | 21 Dec 2024, 16:36 | 18,725 ft | 479 |
| not transmitted | route not resolved | 21 Dec 2024, 10:3121 Dec 2024 | 21 Dec 2024, 10:58 | 10,100 ft | 1,667 |
| not transmitted | route not resolved | 21 Dec 2024, 08:3521 Dec 2024 | 21 Dec 2024, 08:37 | 13,075 ft | 48 |
