Apparatus

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sensors Mode-S transponder

4B191C

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JNG · BOEING 777-300ER

Hex
4B191C
Octal
22614434
Decimal
4,921,628
Country
CH
Tail
HB-JNG
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
181
Distinct callsigns
18
Country
CH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B191C.

Country allocation

The ICAO 24-bit address 4B191C 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
SWR139 - 18 2026-07-13
SWR92 - 17 2026-07-08
SWR64E - 17 2026-07-06
SWR65 - 15 2026-07-07
SWR138 - 15 2026-07-13
SWR93 - 13 2026-07-09
SWR39 - 13 2026-07-11
SWR35G - 13 2026-07-10
SWR177 Swiss International Air Lines 8 2026-06-11
SWR176 Swiss International Air Lines 8 2026-06-10
SWR9G Swiss International Air Lines 7 2026-06-07
SWR180 - 7 2026-07-11
SWR8T Swiss International Air Lines 6 2026-06-06
SWR181 - 6 2026-07-12
SWR41G - 5 2026-07-08
SWR40 - 5 2026-07-07
SWR161 - 4 2026-06-20
SWR160 - 4 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWR139 - Jul 13, 18:00 UTCJul 14, 04:10 UTC10h 10m
2026-07-13 SWR139 - Jul 13, 15:50 UTCJul 13, 16:05 UTC15m
2026-07-13 SWR138 - Jul 13, 08:50 UTCJul 13, 09:25 UTC35m
2026-07-12 SWR138 - Jul 12, 22:15 UTCJul 13, 07:10 UTC8h 55m
2026-07-12 SWR181 - Jul 12, 09:35 UTCJul 12, 20:40 UTC11h 5m
2026-07-11 SWR180 - Jul 11, 16:40 UTCJul 12, 02:35 UTC9h 55m
2026-07-11 SWR39 - Jul 11, 02:50 UTCJul 11, 13:15 UTC10h 25m
2026-07-10 SWR35G ZRH → SFO Jul 10, 11:50 UTCJul 10, 23:25 UTC11h 35m
2026-07-09 SWR93 - Jul 9, 22:00 UTCJul 10, 08:35 UTC10h 35m
2026-07-08 SWR92 - Jul 8, 21:05 UTCJul 9, 08:10 UTC11h 5m
2026-07-08 SWR41G - Jul 8, 03:10 UTCJul 8, 13:40 UTC10h 30m
2026-07-07 SWR40 - Jul 7, 12:15 UTCJul 7, 23:55 UTC11h 40m
2026-07-07 SWR65 - Jul 7, 00:35 UTCJul 7, 09:15 UTC8h 40m
2026-07-06 SWR64E ZRH → MIA Jul 6, 12:15 UTCJul 6, 21:40 UTC9h 25m
2026-07-05 SWR139 - Jul 5, 18:05 UTCJul 6, 04:15 UTC10h 10m
2026-07-05 SWR139 - Jul 5, 15:55 UTCJul 5, 16:10 UTC15m
2026-07-05 SWR138 - Jul 5, 07:30 UTCJul 5, 08:15 UTC45m
2026-07-04 SWR138 - Jul 4, 20:50 UTCJul 5, 00:20 UTC3h 30m
2026-07-04 SWR181 - Jul 4, 06:05 UTCJul 4, 17:15 UTC11h 10m
2026-07-03 SWR180 ZRH → BKK Jul 3, 16:30 UTCJul 4, 02:40 UTC10h 10m
2026-07-02 SWR139 - Jul 2, 18:10 UTCJul 3, 04:20 UTC10h 10m
2026-07-02 SWR139 - Jul 2, 16:00 UTCJul 2, 16:15 UTC15m
2026-07-02 SWR138 - Jul 2, 07:55 UTCJul 2, 08:15 UTC20m
2026-07-01 SWR138 - Jul 1, 21:00 UTCJul 2, 00:40 UTC3h 40m
2026-07-01 SWR41G - Jul 1, 03:00 UTCJul 1, 13:10 UTC10h 10m
2026-06-30 SWR40 - Jun 30, 12:00 UTCJun 30, 23:05 UTC11h 5m
2026-06-29 SWR93 - Jun 29, 22:00 UTCJun 30, 08:50 UTC10h 51m
2026-06-28 SWR92 - Jun 28, 21:45 UTCJun 29, 08:50 UTC11h 5m
2026-06-28 SWR41G - Jun 28, 03:00 UTCJun 28, 13:25 UTC10h 25m
2026-06-27 SWR40 - Jun 27, 12:19 UTCJun 27, 23:39 UTC11h 20m
2026-06-25 SWR139 - Jun 25, 18:45 UTCJun 26, 04:04 UTC9h 20m
2026-06-25 SWR139 - Jun 25, 16:14 UTCJun 25, 16:29 UTC15m
2026-06-25 SWR138 - Jun 25, 07:59 UTCJun 25, 08:34 UTC35m
2026-06-24 SWR138 - Jun 24, 21:04 UTCJun 25, 00:44 UTC3h 40m
2026-06-24 SWR181 - Jun 24, 06:15 UTCJun 24, 17:10 UTC10h 55m
2026-06-23 SWR180 ZRH → BKK Jun 23, 16:35 UTCJun 24, 02:49 UTC10h 15m
2026-06-23 SWR39 - Jun 23, 02:49 UTCJun 23, 13:39 UTC10h 50m
2026-06-22 SWR35G ZRH → SFO Jun 22, 12:19 UTCJun 22, 23:35 UTC11h 15m
2026-06-21 SWR93 - Jun 21, 21:54 UTCJun 22, 08:50 UTC10h 55m
2026-06-20 SWR92 - Jun 20, 21:25 UTCJun 21, 08:25 UTC11h 0m
2026-06-20 SWR161 - Jun 20, 02:29 UTCJun 20, 16:39 UTC14h 10m
2026-06-19 SWR160 ZRH → NRT Jun 19, 11:49 UTCJun 20, 00:04 UTC12h 15m
2026-06-18 SWR139 - Jun 18, 18:35 UTCJun 19, 04:14 UTC9h 39m
2026-06-18 SWR139 - Jun 18, 15:55 UTCJun 18, 16:15 UTC20m
2026-06-18 SWR138 - Jun 18, 08:05 UTCJun 18, 08:45 UTC40m
2026-06-17 SWR138 - Jun 17, 21:00 UTCJun 18, 05:30 UTC8h 30m
2026-06-17 SWR181 - Jun 17, 06:10 UTCJun 17, 17:20 UTC11h 10m
2026-06-16 SWR180 ZRH → BKK Jun 16, 16:35 UTCJun 17, 02:40 UTC10h 6m
2026-06-16 SWR39 SFO → ZRH Jun 16, 03:10 UTCJun 16, 14:05 UTC10h 55m
2026-06-15 SWR35G - Jun 15, 12:10 UTCJun 15, 22:54 UTC10h 45m

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-JNG page for operator, model, and routing details .

Mode-S 4B191C frequently asked

What is Mode-S code 4B191C?
4B191C is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JNG.
Where is Mode-S 4B191C registered?
Mode-S code 4B191C is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B191C broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B191C, octal 22614434, decimal 4,921,628.
What flights does 4B191C operate?
Mode-S 4B191C has broadcast 18 distinct callsigns, including SWR139, SWR92, SWR64E, SWR65, SWR138.