sensors Mode-S transponder
4B191F
ICAO 24-bit transponder address · allocated to Switzerland
Currently assigned to HB-JNJ · BOEING 777-300ER
- Hex
- 4B191F
- Octal
- 22614437
- Decimal
- 4,921,631
- Country
- CH
- Tail
- HB-JNJ
- Type
- B77W
- Flights observed
- 176
- Distinct callsigns
- 18
- Country
- CH
- Last broadcast
- 59m ago
Last known position
Country allocation
The ICAO 24-bit address 4B191F 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 |
|---|---|---|---|
| SWR177 | - | 19 | 2026-07-11 |
| SWR161 | - | 19 | 2026-07-04 |
| SWR176 | - | 15 | 2026-07-09 |
| SWR138 | - | 15 | 2026-07-14 |
| SWR139 | Swiss International Air Lines | 12 | 2026-05-12 |
| SWR65 | - | 11 | 2026-07-12 |
| SWR64E | - | 11 | 2026-07-11 |
| SWR160 | - | 11 | 2026-07-03 |
| SWR181 | - | 9 | 2026-07-09 |
| SWR41G | - | 8 | 2026-06-24 |
| SWR40 | - | 8 | 2026-06-23 |
| SWR180 | - | 8 | 2026-07-08 |
| SWR93 | - | 7 | 2026-07-05 |
| SWR92 | - | 7 | 2026-07-04 |
| SWR9G | - | 4 | 2026-07-07 |
| SWR8T | - | 4 | 2026-07-06 |
| SWR39 | - | 4 | 2026-07-13 |
| SWR35G | - | 4 | 2026-07-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | SWR138 | - | Jul 14, 08:10 UTC | Jul 14, 08:45 UTC | 35m |
| 2026-07-13 | SWR138 | - | Jul 13, 21:15 UTC | Jul 14, 00:45 UTC | 3h 30m |
| 2026-07-13 | SWR39 | SFO → ZRH | Jul 13, 02:45 UTC | Jul 13, 13:05 UTC | 10h 20m |
| 2026-07-12 | SWR35G | ZRH → SFO | Jul 12, 11:50 UTC | Jul 12, 23:20 UTC | 11h 30m |
| 2026-07-12 | SWR65 | - | Jul 12, 00:05 UTC | Jul 12, 08:55 UTC | 8h 50m |
| 2026-07-11 | SWR64E | ZRH → MIA | Jul 11, 12:10 UTC | Jul 11, 21:25 UTC | 9h 15m |
| 2026-07-11 | SWR177 | - | Jul 11, 01:35 UTC | Jul 11, 04:10 UTC | 2h 35m |
| 2026-07-10 | SWR177 | - | Jul 10, 15:45 UTC | Jul 11, 01:30 UTC | 9h 46m |
| 2026-07-09 | SWR176 | - | Jul 9, 21:05 UTC | Jul 10, 08:45 UTC | 11h 40m |
| 2026-07-09 | SWR181 | - | Jul 9, 06:15 UTC | Jul 9, 17:20 UTC | 11h 5m |
| 2026-07-08 | SWR180 | ZRH → BKK | Jul 8, 16:35 UTC | Jul 9, 02:55 UTC | 10h 20m |
| 2026-07-08 | SWR39 | - | Jul 8, 03:20 UTC | Jul 8, 13:45 UTC | 10h 25m |
| 2026-07-07 | SWR35G | - | Jul 7, 11:55 UTC | Jul 7, 23:25 UTC | 11h 30m |
| 2026-07-07 | SWR9G | - | Jul 7, 00:45 UTC | Jul 7, 08:40 UTC | 7h 55m |
| 2026-07-06 | SWR8T | ZRH → ORD | Jul 6, 12:20 UTC | Jul 6, 21:15 UTC | 8h 55m |
| 2026-07-05 | SWR93 | - | Jul 5, 21:45 UTC | Jul 6, 08:30 UTC | 10h 45m |
| 2026-07-04 | SWR92 | - | Jul 4, 21:05 UTC | Jul 5, 08:15 UTC | 11h 10m |
| 2026-07-04 | SWR161 | - | Jul 4, 03:00 UTC | Jul 4, 17:10 UTC | 14h 10m |
| 2026-07-03 | SWR160 | ZRH → NRT | Jul 3, 12:55 UTC | Jul 4, 00:50 UTC | 11h 55m |
| 2026-07-02 | SWR177 | - | Jul 2, 16:05 UTC | Jul 3, 04:25 UTC | 12h 20m |
| 2026-07-01 | SWR176 | - | Jul 1, 21:15 UTC | Jul 2, 09:10 UTC | 11h 55m |
| 2026-06-29 | SWR177 | - | Jun 29, 16:15 UTC | Jun 30, 04:25 UTC | 12h 11m |
| 2026-06-28 | SWR176 | - | Jun 28, 21:40 UTC | Jun 29, 09:20 UTC | 11h 40m |
| 2026-06-28 | SWR161 | - | Jun 28, 02:29 UTC | Jun 28, 16:55 UTC | 14h 25m |
| 2026-06-27 | SWR160 | ZRH → NRT | Jun 27, 11:44 UTC | Jun 27, 23:45 UTC | 12h 0m |
| 2026-06-27 | SWR65 | - | Jun 27, 00:05 UTC | Jun 27, 08:20 UTC | 8h 15m |
| 2026-06-26 | SWR64E | ZRH → MIA | Jun 26, 11:30 UTC | Jun 26, 21:10 UTC | 9h 40m |
| 2026-06-25 | SWR177 | - | Jun 25, 15:59 UTC | Jun 26, 04:10 UTC | 12h 10m |
| 2026-06-24 | SWR176 | - | Jun 24, 21:04 UTC | Jun 25, 09:14 UTC | 12h 10m |
| 2026-06-24 | SWR41G | - | Jun 24, 02:54 UTC | Jun 24, 13:30 UTC | 10h 35m |
| 2026-06-23 | SWR40 | - | Jun 23, 12:09 UTC | Jun 23, 23:34 UTC | 11h 25m |
| 2026-06-23 | SWR65 | - | Jun 23, 00:04 UTC | Jun 23, 08:50 UTC | 8h 45m |
| 2026-06-22 | SWR64E | ZRH → MIA | Jun 22, 11:54 UTC | Jun 22, 21:25 UTC | 9h 30m |
| 2026-06-22 | SWR65 | - | Jun 22, 00:29 UTC | Jun 22, 09:00 UTC | 8h 30m |
| 2026-06-21 | SWR64E | ZRH → MIA | Jun 21, 12:24 UTC | Jun 21, 22:00 UTC | 9h 35m |
| 2026-06-20 | SWR93 | - | Jun 20, 21:55 UTC | Jun 21, 08:44 UTC | 10h 50m |
| 2026-06-20 | SWR93 | - | Jun 20, 16:34 UTC | Jun 20, 18:54 UTC | 2h 20m |
| 2026-06-20 | SWR92 | - | Jun 20, 11:30 UTC | Jun 20, 13:44 UTC | 2h 15m |
| 2026-06-19 | SWR92 | - | Jun 19, 22:09 UTC | Jun 20, 08:59 UTC | 10h 50m |
| 2026-06-19 | SWR181 | STR → ZRH | Jun 19, 19:14 UTC | Jun 19, 19:49 UTC | 35m |
| 2026-06-19 | SWR181 | - | Jun 19, 06:35 UTC | Jun 19, 17:59 UTC | 11h 25m |
| 2026-06-18 | SWR180 | - | Jun 18, 16:25 UTC | Jun 19, 01:04 UTC | 8h 39m |
| 2026-06-18 | SWR41G | - | Jun 18, 02:55 UTC | Jun 18, 13:30 UTC | 10h 35m |
| 2026-06-17 | SWR40 | - | Jun 17, 12:00 UTC | Jun 17, 23:15 UTC | 11h 15m |
| 2026-06-16 | SWR177 | - | Jun 16, 15:55 UTC | Jun 17, 04:15 UTC | 12h 21m |
| 2026-06-15 | SWR176 | - | Jun 15, 21:04 UTC | Jun 16, 08:39 UTC | 11h 35m |
| 2026-06-15 | SWR161 | - | Jun 15, 02:44 UTC | Jun 15, 16:24 UTC | 13h 40m |
| 2026-06-14 | SWR160 | - | Jun 14, 12:20 UTC | Jun 15, 00:35 UTC | 12h 15m |
| 2026-06-13 | SWR177 | - | Jun 13, 15:55 UTC | Jun 14, 04:25 UTC | 12h 30m |
| 2026-06-12 | SWR176 | - | Jun 12, 21:00 UTC | Jun 13, 08:30 UTC | 11h 29m |
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-JNJ page for operator, model, and routing details .