sensors Mode-S transponder
4B191B
ICAO 24-bit transponder address · allocated to Switzerland
Currently assigned to HB-JNF · BOEING 777-300ER
- Hex
- 4B191B
- Octal
- 22614433
- Decimal
- 4,921,627
- Country
- CH
- Tail
- HB-JNF
- Type
- B77W
- Flights observed
- 114
- Distinct callsigns
- 18
- Country
- CH
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 4B191B falls within the block assigned to Switzerland (CH) by ICAO Annex 10, Volume III. Every aircraft registered in Switzerland receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SWR138 | Swiss International Air Lines | 15 | 2026-05-28 |
| SWR181 | Swiss International Air Lines | 13 | 2026-05-27 |
| SWR180 | Swiss International Air Lines | 12 | 2026-05-26 |
| SWR40 | Swiss International Air Lines | 9 | 2026-05-11 |
| SWR139 | Swiss International Air Lines | 9 | 2026-05-28 |
| SWR64E | Swiss International Air Lines | 8 | 2026-05-24 |
| SWR41G | Swiss International Air Lines | 8 | 2026-05-12 |
| SWR93 | Swiss International Air Lines | 6 | 2026-05-10 |
| SWR92 | Swiss International Air Lines | 6 | 2026-05-09 |
| SWR65 | Swiss International Air Lines | 6 | 2026-05-25 |
| SWR39 | Swiss International Air Lines | 3 | 2026-05-26 |
| SWR35G | Swiss International Air Lines | 3 | 2026-05-25 |
| SWR177 | Swiss International Air Lines | 3 | 2026-05-23 |
| SWR176 | Swiss International Air Lines | 3 | 2026-05-22 |
| SWR161 | Swiss International Air Lines | 3 | 2026-05-22 |
| SWR160 | Swiss International Air Lines | 3 | 2026-05-21 |
| SWR9G | Swiss International Air Lines | 2 | 2026-05-30 |
| SWR8T | Swiss International Air Lines | 2 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | SWR9G | ORD → ZRH | May 30, 00:35 UTC | May 30, 03:00 UTC | 2h 25m |
| 2026-05-29 | SWR8T | ZRH → ORD | May 29, 12:35 UTC | May 29, 21:00 UTC | 8h 25m |
| 2026-05-28 | SWR139 | HKG → ZRH | May 28, 17:50 UTC | May 29, 04:15 UTC | 10h 25m |
| 2026-05-28 | SWR139 | HKG → ZRH | May 28, 15:30 UTC | May 28, 15:40 UTC | 10m |
| 2026-05-28 | SWR138 | ZRH → HKG | May 28, 07:40 UTC | May 28, 08:20 UTC | 40m |
| 2026-05-27 | SWR138 | ZRH → HKG | May 27, 20:50 UTC | May 28, 05:30 UTC | 8h 40m |
| 2026-05-27 | SWR181 | BKK → ZRH | May 27, 06:09 UTC | May 27, 17:40 UTC | 11h 31m |
| 2026-05-26 | SWR180 | ZRH → BKK | May 26, 16:20 UTC | May 27, 00:44 UTC | 8h 25m |
| 2026-05-26 | SWR39 | SFO → ZRH | May 26, 03:09 UTC | May 26, 13:45 UTC | 10h 35m |
| 2026-05-25 | SWR35G | ZRH → SFO | May 25, 12:10 UTC | May 25, 23:45 UTC | 11h 34m |
| 2026-05-25 | SWR65 | MIA → ZRH | May 25, 06:50 UTC | May 25, 08:55 UTC | 2h 5m |
| 2026-05-24 | SWR64E | ZRH → MIA | May 24, 11:45 UTC | May 24, 21:20 UTC | 9h 35m |
| 2026-05-23 | SWR177 | SIN → ZRH | May 23, 15:50 UTC | May 24, 04:10 UTC | 12h 21m |
| 2026-05-22 | SWR176 | ZRH → SIN | May 22, 21:05 UTC | May 23, 09:00 UTC | 11h 55m |
| 2026-05-22 | SWR161 | NRT → ZRH | May 22, 03:45 UTC | May 22, 17:35 UTC | 13h 50m |
| 2026-05-21 | SWR160 | ZRH → NRT | May 21, 11:40 UTC | May 22, 00:20 UTC | 12h 40m |
| 2026-05-21 | SWR65 | MIA → ZRH | May 21, 00:15 UTC | May 21, 09:00 UTC | 8h 45m |
| 2026-05-20 | SWR64E | ZRH → MIA | May 20, 11:40 UTC | May 20, 21:20 UTC | 9h 40m |
| 2026-05-19 | SWR139 | HKG → ZRH | May 19, 18:40 UTC | May 20, 04:10 UTC | 9h 30m |
| 2026-05-19 | SWR139 | HKG → ZRH | May 19, 15:30 UTC | May 19, 15:50 UTC | 20m |
| 2026-05-18 | SWR138 | ZRH → HKG | May 18, 20:45 UTC | May 19, 08:20 UTC | 11h 35m |
| 2026-05-18 | SWR181 | BKK → ZRH | May 18, 06:10 UTC | May 18, 17:10 UTC | 11h 0m |
| 2026-05-17 | SWR180 | ZRH → BKK | May 17, 16:10 UTC | May 18, 02:30 UTC | 10h 20m |
| 2026-05-17 | SWR39 | SFO → ZRH | May 17, 02:55 UTC | May 17, 13:15 UTC | 10h 20m |
| 2026-05-16 | SWR35G | ZRH → SFO | May 16, 12:25 UTC | May 16, 23:20 UTC | 10h 55m |
| 2026-05-16 | SWR9G | ORD → ZRH | May 16, 01:35 UTC | May 16, 09:31 UTC | 7h 56m |
| 2026-05-15 | SWR8T | ZRH → ORD | May 15, 11:35 UTC | May 15, 20:35 UTC | 8h 59m |
| 2026-05-15 | SWR139 | HKG → ZRH | May 15, 02:30 UTC | May 15, 04:20 UTC | 1h 50m |
| 2026-05-14 | SWR139 | HKG → ZRH | May 14, 15:40 UTC | May 14, 15:55 UTC | 15m |
| 2026-05-13 | SWR138 | ZRH → HKG | May 13, 21:20 UTC | May 14, 08:50 UTC | 11h 30m |
| 2026-05-13 | SWR181 | BKK → ZRH | May 13, 09:35 UTC | May 13, 17:40 UTC | 8h 5m |
| 2026-05-13 | SWR181 | BKK → ZRH | May 13, 06:10 UTC | May 13, 08:25 UTC | 2h 15m |
| 2026-05-12 | SWR180 | ZRH → BKK | May 12, 16:30 UTC | May 13, 02:35 UTC | 10h 5m |
| 2026-05-12 | SWR41G | LAX → ZRH | May 12, 02:45 UTC | May 12, 13:20 UTC | 10h 35m |
| 2026-05-11 | SWR40 | ZRH → LAX | May 11, 12:25 UTC | May 11, 22:35 UTC | 10h 10m |
| 2026-05-10 | SWR93 | GRU → ZRH | May 10, 21:44 UTC | May 11, 07:55 UTC | 10h 10m |
| 2026-05-09 | SWR92 | GRU → EZE | May 9, 21:09 UTC | May 10, 08:25 UTC | 11h 15m |
| 2026-05-09 | SWR161 | NRT → ZRH | May 9, 02:25 UTC | May 9, 16:15 UTC | 13h 50m |
| 2026-05-08 | SWR160 | ZRH → NRT | May 8, 11:40 UTC | May 8, 23:50 UTC | 12h 10m |
| 2026-05-07 | SWR93 | GRU → ZRH | May 7, 21:55 UTC | May 8, 08:24 UTC | 10h 29m |
| 2026-05-06 | SWR92 | GRU → EZE | May 6, 21:05 UTC | May 7, 08:30 UTC | 11h 25m |
| 2026-05-06 | SWR181 | BKK → ZRH | May 6, 06:25 UTC | May 6, 18:00 UTC | 11h 35m |
| 2026-05-05 | SWR180 | ZRH → BKK | May 5, 16:40 UTC | May 6, 02:55 UTC | 10h 15m |
| 2026-05-05 | SWR41G | LAX → ZRH | May 5, 02:50 UTC | May 5, 13:25 UTC | 10h 35m |
| 2026-05-04 | SWR40 | ZRH → LAX | May 4, 11:55 UTC | May 4, 23:35 UTC | 11h 41m |
| 2026-05-04 | SWR65 | MIA → ZRH | May 4, 01:10 UTC | May 4, 09:25 UTC | 8h 15m |
| 2026-05-03 | SWR64E | ZRH → MIA | May 3, 11:55 UTC | May 3, 23:10 UTC | 11h 15m |
| 2026-05-02 | SWR177 | SIN → ZRH | May 2, 15:50 UTC | May 3, 04:10 UTC | 12h 19m |
| 2026-05-01 | SWR176 | ZRH → SIN | May 1, 21:05 UTC | May 2, 08:55 UTC | 11h 50m |
| 2026-05-01 | SWR181 | BKK → ZRH | May 1, 06:40 UTC | May 1, 17:55 UTC | 11h 15m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the HB-JNF page for operator, model, and routing details .