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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
- 9 Nov 2026, 11:52
- Logged visits
- 1,531
The station's story
- Cumulative contact time
- 195 h
- Distinct days
- 820
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #25,654 of 60,656
- Longest contact
- 0 h 40 min
- Contacts on this Mode S address
- 1,574 contacts on the address, 1,531 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
CSW (563 contacts, 2025-2026) · GSW (541 contacts, 2023-2025) · ENT (2 contacts, 2025)
Operator as per the registry of 9 Nov 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| not transmitted | route not resolved | 9 Nov 2026, 11:469 Nov 2026 | 9 Nov 2026, 11:52 | 20,225 ft | 1 |
| CSW612 | LFSB > BKPR | 4 Nov 2026, 11:454 Nov 2026 | 4 Nov 2026, 11:48 | 22,125 ft | 38 |
| CSW615 | BKPR > LFSB | 3 Nov 2026, 22:173 Nov 2026 | 3 Nov 2026, 22:23 | 12,550 ft | 26 |
| CSW612 | LFSB > BKPR | 2 Nov 2026, 12:012 Nov 2026 | 2 Nov 2026, 12:07 | 20,350 ft | 24 |
| not transmitted | route not resolved | 1 Nov 2026, 22:381 Nov 2026 | 1 Nov 2026, 22:39 | 14,600 ft | 3 |
| CSW1EP | LSZH > LEPA | 1 Nov 2026, 11:511 Nov 2026 | 1 Nov 2026, 12:08 | 35,000 ft | 922 |
| not transmitted | route not resolved | 29 Oct 2026, 21:5529 Oct 2026 | 29 Oct 2026, 21:55 | 14,850 ft | 5 |
| CSW612 | LFSB > BKPR | 28 Oct 2026, 11:4728 Oct 2026 | 28 Oct 2026, 11:51 | 20,575 ft | 11 |
| CSW615 | BKPR > LFSB | 27 Oct 2026, 22:1327 Oct 2026 | 27 Oct 2026, 22:15 | 16,625 ft | 7 |
| CSW1PM | LEPA > LSZH | 26 Oct 2026, 15:3026 Oct 2026 | 26 Oct 2026, 15:49 | 17,175 ft | 408 |
| CSW1EP | LSZH > LEPA | 26 Oct 2026, 11:5526 Oct 2026 | 26 Oct 2026, 12:16 | 35,000 ft | 1,294 |
| CSW612 | LFSB > BKPR | 23 Oct 2026, 12:0023 Oct 2026 | 23 Oct 2026, 12:06 | 21,825 ft | 5 |
| not transmitted | route not resolved | 22 Oct 2026, 22:4922 Oct 2026 | 22 Oct 2026, 22:55 | 10,350 ft | 12 |
| CSW612 | LFSB > BKPR | 22 Oct 2026, 12:0322 Oct 2026 | 22 Oct 2026, 12:05 | 18,150 ft | 1 |
| CSW615 | BKPR > LFSB | 21 Oct 2026, 21:3721 Oct 2026 | 21 Oct 2026, 21:38 | 16,900 ft | 16 |
| CSW612 | LFSB > BKPR | 20 Oct 2026, 11:1120 Oct 2026 | 20 Oct 2026, 11:17 | 19,950 ft | 26 |
| not transmitted | route not resolved | 19 Oct 2026, 22:1919 Oct 2026 | 19 Oct 2026, 22:25 | 10,525 ft | 6 |
| CSW612 | LFSB > BKPR | 19 Oct 2026, 11:5919 Oct 2026 | 19 Oct 2026, 12:05 | 19,775 ft | 7 |
| CSW612 | LFSB > BKPR | 18 Oct 2026, 12:0718 Oct 2026 | 18 Oct 2026, 12:14 | 19,200 ft | 7 |
| CSW611 | BKPR > LFSB | 18 Oct 2026, 10:3418 Oct 2026 | 18 Oct 2026, 10:40 | 12,050 ft | 19 |
| CSW610 | LFSB > BKPR | 18 Oct 2026, 06:1718 Oct 2026 | 18 Oct 2026, 06:24 | 21,025 ft | 78 |
| CSW612 | LFSB > BKPR | 17 Oct 2026, 11:5717 Oct 2026 | 17 Oct 2026, 12:00 | 18,725 ft | 10 |
| CSW611 | BKPR > LFSB | 17 Oct 2026, 10:2817 Oct 2026 | 17 Oct 2026, 10:29 | 16,575 ft | 2 |
| CSW610 | LFSB > BKPR | 17 Oct 2026, 06:1417 Oct 2026 | 17 Oct 2026, 06:16 | 16,275 ft | 63 |
| CSW1615 | route not resolved | 17 Oct 2026, 04:3717 Oct 2026 | 17 Oct 2026, 04:47 | 11,875 ft | 244 |
