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Aircraft
HB-JOS
Common
- Mode S hex
- 4B1942
- Type
- Airbus A320A320
- Manufacturer
- Airbus
- Serial number
- 4391
- Year built
- 201016 years old
- Operator
- Chair Airlines (CSW)
- Country of registration
Switzerland
- First contact
- 13 Sept 2017, 13:06
- Last contact
- 12 Aug 2026, 11:37
- Logged visits
- 1,410
The station's story
- Cumulative contact time
- 176 h
- Distinct days
- 761
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #25,490 of 57,078
- Longest contact
- 0 h 40 min
- Contacts on this Mode S address
- 1,453 contacts on the address, 1,410 under this registration: the address has carried several identities over time.
Same airframe, also seen as
- HZ-AS35from 7 Oct 2016 to 7 Oct 2016 · 2 contacts
These registrations share the same serial number and type according to the reference data. Serial numbers can collide, though: it is a deduction, not a certainty.
Observed callsigns
GSW (541 contacts, 2023-2025) · CSW (470 contacts, 2025-2026) · ENT (2 contacts, 2025)
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 |
|---|---|---|---|---|---|
| CSW612 | LFSB > BKPR | 4 Jan 2026, 12:224 Jan 2026 | 4 Jan 2026, 12:24 | 11,500 ft | 35 |
| CSW611 | BKPR > LFSB | 4 Jan 2026, 10:494 Jan 2026 | 4 Jan 2026, 10:50 | 16,750 ft | 1 |
| CSW610 | LFSB > BKPR | 4 Jan 2026, 06:284 Jan 2026 | 4 Jan 2026, 06:33 | 16,025 ft | 128 |
| CSW615 | BKPR > LFSB | 3 Jan 2026, 22:153 Jan 2026 | 3 Jan 2026, 22:19 | 17,225 ft | 57 |
| CSW612 | LFSB > BKPR | 1 Jan 2026, 12:261 Jan 2026 | 1 Jan 2026, 12:30 | 15,200 ft | 61 |
| CSW615 | BKPR > LFSB | 31 Dec 2025, 19:1931 Dec 2025 | 31 Dec 2025, 19:26 | 11,725 ft | 54 |
| CSW612 | LFSB > BKPR | 31 Dec 2025, 09:2631 Dec 2025 | 31 Dec 2025, 09:28 | 12,425 ft | 44 |
| not transmitted | route not resolved | 30 Dec 2025, 22:1130 Dec 2025 | 30 Dec 2025, 22:12 | 15,050 ft | no position received |
| CSW612 | LFSB > BKPR | 28 Dec 2025, 11:5128 Dec 2025 | 28 Dec 2025, 11:56 | 16,275 ft | 41 |
| CSW615 | BKPR > LFSB | 27 Dec 2025, 22:1427 Dec 2025 | 27 Dec 2025, 22:20 | 10,350 ft | 24 |
| CSW612 | LFSB > BKPR | 25 Dec 2025, 12:0825 Dec 2025 | 25 Dec 2025, 12:12 | 23,650 ft | 100 |
| CSW611 | BKPR > LFSB | 25 Dec 2025, 10:4425 Dec 2025 | 25 Dec 2025, 10:47 | 19,325 ft | 23 |
| CSW610 | LFSB > BKPR | 25 Dec 2025, 06:1325 Dec 2025 | 25 Dec 2025, 06:17 | 16,800 ft | 236 |
| CSW615 | BKPR > LFSB | 24 Dec 2025, 22:2824 Dec 2025 | 24 Dec 2025, 22:37 | 8,275 ft | 31 |
| CSW612 | LFSB > BKPR | 23 Dec 2025, 11:5523 Dec 2025 | 23 Dec 2025, 12:02 | 19,875 ft | 44 |
| CSW5611 | route not resolved | 23 Dec 2025, 10:3823 Dec 2025 | 23 Dec 2025, 10:40 | 15,850 ft | 21 |
| CSW610 | LFSB > BKPR | 23 Dec 2025, 06:4623 Dec 2025 | 23 Dec 2025, 06:49 | 14,500 ft | 116 |
| CSW615 | BKPR > LFSB | 22 Dec 2025, 22:0322 Dec 2025 | 22 Dec 2025, 22:10 | 11,750 ft | 19 |
| CSW612 | LFSB > BKPR | 20 Dec 2025, 11:5220 Dec 2025 | 20 Dec 2025, 11:58 | 18,450 ft | 60 |
| CSW611 | BKPR > LFSB | 20 Dec 2025, 10:3320 Dec 2025 | 20 Dec 2025, 10:34 | 16,800 ft | 5 |
| CSW610 | LFSB > BKPR | 20 Dec 2025, 06:2420 Dec 2025 | 20 Dec 2025, 06:27 | 15,700 ft | 175 |
| CSW615 | BKPR > LFSB | 19 Dec 2025, 22:0819 Dec 2025 | 19 Dec 2025, 22:10 | 16,975 ft | 23 |
| CSW612 | LFSB > BKPR | 17 Dec 2025, 12:1217 Dec 2025 | 17 Dec 2025, 12:15 | 16,950 ft | 110 |
| CSW615 | BKPR > LFSB | 16 Dec 2025, 22:3416 Dec 2025 | 16 Dec 2025, 22:41 | 9,575 ft | 299 |
| CSW612 | LFSB > BKPR | 16 Dec 2025, 11:5916 Dec 2025 | 16 Dec 2025, 12:05 | 17,550 ft | 5 |
