Apparatus

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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
No current signal · last broadcast 1h ago
Flights observed
104
Distinct callsigns
18
Country
CH
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4B191F.

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
SWR161 Swiss International Air Lines 15 2026-05-16
SWR138 Swiss International Air Lines 13 2026-05-10
SWR139 Swiss International Air Lines 12 2026-05-12
SWR177 Swiss International Air Lines 8 2026-05-14
SWR176 Swiss International Air Lines 7 2026-05-29
SWR160 Swiss International Air Lines 7 2026-05-15
SWR65 Swiss International Air Lines 5 2026-05-27
SWR64E Swiss International Air Lines 5 2026-05-26
SWR181 Swiss International Air Lines 5 2026-05-29
SWR180 Swiss International Air Lines 5 2026-05-28
SWR93 Swiss International Air Lines 4 2026-05-25
SWR92 Swiss International Air Lines 4 2026-05-24
SWR41G Swiss International Air Lines 4 2026-05-28
SWR40 Swiss International Air Lines 4 2026-05-27
SWR39 Swiss International Air Lines 2 2026-05-19
SWR35G Swiss International Air Lines 2 2026-05-18
SWR9G Swiss International Air Lines 1 2026-04-24
SWR8T Swiss International Air Lines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWR176 ZRH → SIN May 29, 21:00 UTCMay 30, 03:45 UTC6h 45m
2026-05-29 SWR181 BKK → ZRH May 29, 06:15 UTCMay 29, 17:35 UTC11h 20m
2026-05-28 SWR180 ZRH → BKK May 28, 16:35 UTCMay 29, 02:35 UTC10h 0m
2026-05-28 SWR41G LAX → ZRH May 28, 03:25 UTCMay 28, 14:20 UTC10h 55m
2026-05-27 SWR40 ZRH → LAX May 27, 12:15 UTCMay 27, 23:40 UTC11h 25m
2026-05-27 SWR65 MIA → ZRH May 27, 00:10 UTCMay 27, 09:00 UTC8h 50m
2026-05-26 SWR64E ZRH → MIA May 26, 11:20 UTCMay 26, 20:50 UTC9h 30m
2026-05-25 SWR93 GRU → ZRH May 25, 21:54 UTCMay 26, 08:34 UTC10h 40m
2026-05-24 SWR92 ZRH → GRU May 24, 21:10 UTCMay 25, 08:25 UTC11h 15m
2026-05-24 SWR181 BKK → ZRH May 24, 06:05 UTCMay 24, 17:25 UTC11h 20m
2026-05-23 SWR180 ZRH → BKK May 23, 16:25 UTCMay 24, 02:35 UTC10h 11m
2026-05-23 SWR41G LAX → ZRH May 23, 03:00 UTCMay 23, 13:40 UTC10h 40m
2026-05-22 SWR40 ZRH → LAX May 22, 11:50 UTCMay 22, 23:05 UTC11h 15m
2026-05-22 SWR65 MIA → ZRH May 22, 00:05 UTCMay 22, 08:30 UTC8h 25m
2026-05-21 SWR64E ZRH → MIA May 21, 11:20 UTCMay 21, 21:05 UTC9h 45m
2026-05-20 SWR93 GRU → ZRH May 20, 22:00 UTCMay 21, 08:40 UTC10h 40m
2026-05-20 SWR93 GRU → ZRH May 20, 16:45 UTCMay 20, 18:55 UTC2h 10m
2026-05-20 SWR92 ZRH → GRU May 20, 11:00 UTCMay 20, 13:35 UTC2h 35m
2026-05-19 SWR92 ZRH → GRU May 19, 21:05 UTCMay 20, 08:15 UTC11h 11m
2026-05-19 SWR39 SFO → ZRH May 19, 03:05 UTCMay 19, 13:20 UTC10h 15m
2026-05-18 SWR35G ZRH → SFO May 18, 11:35 UTCMay 18, 22:30 UTC10h 54m
2026-05-17 SWR93 GRU → ZRH May 17, 22:05 UTCMay 18, 08:45 UTC10h 40m
2026-05-16 SWR92 ZRH → GRU May 16, 21:05 UTCMay 17, 08:35 UTC11h 30m
2026-05-16 SWR161 NRT → ZRH May 16, 02:35 UTCMay 16, 16:10 UTC13h 36m
2026-05-15 SWR160 ZRH → NRT May 15, 11:25 UTCMay 16, 00:20 UTC12h 54m
2026-05-14 SWR177 SIN → ZRH May 14, 16:35 UTCMay 15, 04:55 UTC12h 20m
2026-05-13 SWR176 ZRH → SIN May 13, 21:05 UTCMay 14, 08:55 UTC11h 50m
2026-05-13 SWR161 NRT → ZRH May 13, 03:05 UTCMay 13, 17:00 UTC13h 55m
2026-05-12 SWR160 ZRH → NRT May 12, 12:00 UTCMay 13, 00:45 UTC12h 45m
2026-05-12 SWR139 HKG → ZRH May 12, 03:10 UTCMay 12, 04:15 UTC1h 5m
2026-05-11 SWR139 HKG → ZRH May 11, 15:35 UTCMay 11, 15:55 UTC20m
2026-05-10 SWR138 ZRH → HKG May 10, 20:45 UTCMay 11, 08:00 UTC11h 16m
2026-05-10 SWR181 BKK → ZRH May 10, 06:25 UTCMay 10, 17:59 UTC11h 35m
2026-05-09 SWR180 ZRH → BKK May 9, 16:25 UTCMay 10, 02:20 UTC9h 55m
2026-05-09 SWR41G LAX → ZRH May 9, 02:50 UTCMay 9, 13:40 UTC10h 50m
2026-05-08 SWR40 ZRH → LAX May 8, 11:55 UTCMay 8, 23:20 UTC11h 25m
2026-05-07 SWR177 SIN → ZRH May 7, 17:35 UTCMay 8, 06:14 UTC12h 40m
2026-05-06 SWR176 ZRH → SIN May 6, 21:00 UTCMay 7, 08:20 UTC11h 20m
2026-05-05 SWR139 HKG → ZRH May 5, 00:05 UTCMay 5, 04:05 UTC4h 0m
2026-05-04 SWR139 HKG → ZRH May 4, 15:35 UTCMay 4, 15:55 UTC20m
2026-05-04 SWR138 ZRH → HKG May 4, 07:50 UTCMay 4, 08:10 UTC20m
2026-05-03 SWR138 ZRH → HKG May 3, 20:49 UTCMay 4, 05:40 UTC8h 50m
2026-05-03 SWR39 SFO → ZRH May 3, 02:50 UTCMay 3, 13:20 UTC10h 29m
2026-05-02 SWR35G ZRH → SFO May 2, 11:40 UTCMay 2, 23:10 UTC11h 30m
2026-05-02 SWR139 HKG → ZRH May 2, 00:00 UTCMay 2, 04:05 UTC4h 5m
2026-05-01 SWR139 HKG → ZRH May 1, 15:35 UTCMay 1, 15:50 UTC15m
2026-05-01 SWR138 ZRH → HKG May 1, 07:50 UTCMay 1, 08:15 UTC25m
2026-04-30 SWR138 ZRH → HKG Apr 30, 21:05 UTCMay 1, 05:55 UTC8h 50m
2026-04-30 SWR181 BKK → ZRH Apr 30, 06:20 UTCApr 30, 18:00 UTC11h 41m
2026-04-29 SWR180 ZRH → BKK Apr 29, 16:20 UTCApr 30, 02:20 UTC9h 59m

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 .

Mode-S 4B191F frequently asked

What is Mode-S code 4B191F?
4B191F is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JNJ.
Where is Mode-S 4B191F registered?
Mode-S code 4B191F is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B191F broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B191F, octal 22614437, decimal 4,921,631.
What flights does 4B191F operate?
Mode-S 4B191F has broadcast 18 distinct callsigns, including SWR161, SWR138, SWR139, SWR177, SWR176.