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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
- 11 Aug 2026, 16:04
- Logged visits
- 1,408
The station's story
- Cumulative contact time
- 176 h
- Distinct days
- 760
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #25,489 of 57,065
- Longest contact
- 0 h 40 min
- Contacts on this Mode S address
- 1,451 contacts on the address, 1,408 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 (469 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 |
|---|---|---|---|---|---|
| not transmitted | route not resolved | 4 Mar 2026, 15:234 Mar 2026 | 4 Mar 2026, 15:24 | 32,650 ft | no position received |
| CSW1EP | LSZH > LEPA | 4 Mar 2026, 11:474 Mar 2026 | 4 Mar 2026, 12:08 | 37,025 ft | 1,320 |
| CSW612 | LFSB > BKPR | 3 Mar 2026, 11:563 Mar 2026 | 3 Mar 2026, 11:59 | 21,900 ft | 39 |
| CSW615 | BKPR > LFSB | 2 Mar 2026, 22:102 Mar 2026 | 2 Mar 2026, 22:11 | 16,275 ft | 16 |
| not transmitted | route not resolved | 1 Mar 2026, 12:071 Mar 2026 | 1 Mar 2026, 12:08 | 16,625 ft | no position received |
| not transmitted | route not resolved | 28 Feb 2026, 22:2628 Feb 2026 | 28 Feb 2026, 22:26 | 13,825 ft | no position received |
| CSW612 | LFSB > BKPR | 26 Feb 2026, 11:5026 Feb 2026 | 26 Feb 2026, 11:57 | 21,200 ft | 8 |
| CSW615 | BKPR > LFSB | 25 Feb 2026, 22:1225 Feb 2026 | 25 Feb 2026, 22:18 | 8,950 ft | 54 |
| CSW1EP | LSZH > LEPA | 25 Feb 2026, 12:0225 Feb 2026 | 25 Feb 2026, 12:27 | 36,975 ft | 1,521 |
| CSW612 | LFSB > BKPR | 24 Feb 2026, 11:5424 Feb 2026 | 24 Feb 2026, 11:56 | 18,750 ft | 18 |
| CSW615 | BKPR > LFSB | 23 Feb 2026, 22:2223 Feb 2026 | 23 Feb 2026, 22:23 | 15,850 ft | 2 |
| not transmitted | route not resolved | 23 Feb 2026, 11:5623 Feb 2026 | 23 Feb 2026, 11:58 | 19,200 ft | 7 |
| CSW615 | BKPR > LFSB | 22 Feb 2026, 22:1822 Feb 2026 | 22 Feb 2026, 22:25 | 10,925 ft | 72 |
| CSW612 | LFSB > BKPR | 21 Feb 2026, 11:5121 Feb 2026 | 21 Feb 2026, 11:54 | 15,225 ft | 52 |
| CSW615 | BKPR > LFSB | 20 Feb 2026, 22:2220 Feb 2026 | 20 Feb 2026, 22:24 | 16,325 ft | 29 |
| not transmitted | route not resolved | 20 Feb 2026, 15:4320 Feb 2026 | 20 Feb 2026, 15:43 | 33,175 ft | no position received |
| CSW1EP | LSZH > LEPA | 20 Feb 2026, 11:4520 Feb 2026 | 20 Feb 2026, 12:03 | 35,025 ft | 982 |
| CSW612 | LFSB > BKPR | 19 Feb 2026, 11:5919 Feb 2026 | 19 Feb 2026, 12:05 | 22,625 ft | 15 |
| CSW615 | BKPR > LFSB | 18 Feb 2026, 22:1718 Feb 2026 | 18 Feb 2026, 22:18 | 16,100 ft | 13 |
| not transmitted | route not resolved | 18 Feb 2026, 15:4118 Feb 2026 | 18 Feb 2026, 15:41 | not transmitted | no position received |
| CSW1EP | LSZH > LEPA | 18 Feb 2026, 12:0818 Feb 2026 | 18 Feb 2026, 12:29 | 35,025 ft | 1,159 |
| CSW612 | LFSB > BKPR | 17 Feb 2026, 12:0117 Feb 2026 | 17 Feb 2026, 12:06 | 19,450 ft | 7 |
| CSW615 | BKPR > LFSB | 16 Feb 2026, 22:1016 Feb 2026 | 16 Feb 2026, 22:12 | 17,675 ft | 5 |
| not transmitted | route not resolved | 13 Feb 2026, 11:5313 Feb 2026 | 13 Feb 2026, 11:55 | 18,375 ft | 7 |
| not transmitted | route not resolved | 12 Feb 2026, 22:1612 Feb 2026 | 12 Feb 2026, 22:22 | 9,950 ft | no position received |
