Apparatus

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sensors Mode-S transponder

4B194B

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JPB · AIRBUS A-321neo

Hex
4B194B
Octal
22614513
Decimal
4,921,675
Country
CH
Tail
HB-JPB
Type
A21N
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
383
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 4B194B.

Country allocation

The ICAO 24-bit address 4B194B 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 20 distinct

Callsign Airline Flights Last seen
SWR542D Swiss International Air Lines 12 2026-07-24
SWR2BK Swiss International Air Lines 12 2026-07-25
SWR8HG Swiss International Air Lines 11 2026-07-24
SWR2GX Swiss International Air Lines 11 2026-07-25
SWR9AM - 8 2026-07-23
SWR52Y - 8 2026-07-18
SWR39L - 8 2026-07-16
SWR27M Swiss International Air Lines 8 2026-07-23
SWR115Y - 8 2026-07-16
SWR756C - 7 2026-07-18
SWR755L - 7 2026-07-11
SWR2083 - 7 2026-07-12
SWR1KV Swiss International Air Lines 7 2026-07-26
SWR1ET Swiss International Air Lines 7 2026-07-19
SWR98P - 6 2026-07-23
SWR2XH Swiss International Air Lines 6 2026-07-23
SWR2120 - 6 2026-07-18
SWR20D Swiss International Air Lines 6 2026-07-22
SWR8BC Swiss International Air Lines 5 2026-07-19
SWR5CB - 5 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR1KV ZRH → ARN Jul 26, 20:00 UTCJul 26, 22:10 UTC2h 10m
2026-07-26 SWR49K CPH → ZRH Jul 26, 16:50 UTCJul 26, 18:15 UTC1h 25m
2026-07-26 SWR96V ZRH → CPH Jul 26, 14:20 UTCJul 26, 15:50 UTC1h 30m
2026-07-26 SWR98F SKG → ZRH Jul 26, 10:45 UTCJul 26, 12:45 UTC2h 0m
2026-07-26 SWR79B ZRH → SKG Jul 26, 07:35 UTCJul 26, 09:20 UTC1h 45m
2026-07-26 SWR8AD CPH → ZRH Jul 26, 04:45 UTCJul 26, 06:15 UTC1h 30m
2026-07-25 SWR44X ZRH → CPH Jul 25, 20:20 UTCJul 25, 21:45 UTC1h 25m
2026-07-25 SWR2GX LIS → ZRH Jul 25, 15:45 UTCJul 25, 17:55 UTC2h 10m
2026-07-25 SWR2BK ZRH → LIS Jul 25, 11:55 UTCJul 25, 14:25 UTC2h 30m
2026-07-25 SWR4CX - Jul 25, 07:50 UTCJul 25, 09:30 UTC1h 40m
2026-07-25 SWR464L ZRH → BEG Jul 25, 05:15 UTCJul 25, 06:30 UTC1h 15m
2026-07-24 SWR8YP BEG → ZRH Jul 24, 18:40 UTCJul 24, 20:05 UTC1h 25m
2026-07-24 SWR2DK ZRH → BEG Jul 24, 16:15 UTCJul 24, 17:35 UTC1h 20m
2026-07-24 SWR5CB - Jul 24, 13:50 UTCJul 24, 14:45 UTC55m
2026-07-24 SWR1PL ZRH → BER Jul 24, 11:30 UTCJul 24, 12:35 UTC1h 5m
2026-07-24 SWR8HG LHR → ZRH Jul 24, 08:20 UTCJul 24, 09:45 UTC1h 25m
2026-07-24 SWR542D ZRH → LHR Jul 24, 05:25 UTCJul 24, 07:00 UTC1h 35m
2026-07-23 SWR27M LHR → ZRH Jul 23, 18:35 UTCJul 23, 19:50 UTC1h 15m
2026-07-23 SWR9AM ZRH → LHR Jul 23, 15:15 UTCJul 23, 16:35 UTC1h 20m
2026-07-23 SWR2XH AGP → ZRH Jul 23, 11:55 UTCJul 23, 14:00 UTC2h 5m
2026-07-23 SWR98P - Jul 23, 07:45 UTCJul 23, 10:10 UTC2h 25m
2026-07-23 SWR1PM ARN → ZRH Jul 23, 04:20 UTCJul 23, 06:15 UTC1h 55m
2026-07-22 SWR1KV ZRH → ARN Jul 22, 19:45 UTCJul 22, 21:50 UTC2h 5m
2026-07-22 SWR388G HAM → ZRH Jul 22, 17:25 UTCJul 22, 18:35 UTC1h 10m
2026-07-22 SWR1TX ZRH → HAM Jul 22, 15:15 UTCJul 22, 16:20 UTC1h 5m
2026-07-22 SWR20D OPO → ZRH Jul 22, 11:50 UTCJul 22, 13:50 UTC2h 0m
2026-07-22 SWR1HW ATH → ZRH Jul 22, 04:25 UTCJul 22, 11:40 UTC7h 15m
2026-07-21 SWR7MV ZRH → ATH Jul 21, 19:50 UTCJul 21, 21:55 UTC2h 5m
2026-07-21 SWR2GX LIS → ZRH Jul 21, 15:30 UTCJul 21, 17:45 UTC2h 15m
2026-07-21 SWR2BK ZRH → LIS Jul 21, 11:20 UTCJul 21, 13:55 UTC2h 35m
2026-07-21 SWR8HG LHR → ZRH Jul 21, 08:40 UTCJul 21, 09:50 UTC1h 10m
2026-07-21 SWR542D ZRH → LHR Jul 21, 05:30 UTCJul 21, 06:50 UTC1h 20m
2026-07-20 SWR42V CDG → ZRH Jul 20, 18:15 UTCJul 20, 18:55 UTC40m
2026-07-20 SWR1DE ZRH → CDG Jul 20, 16:00 UTCJul 20, 17:00 UTC1h 0m
2026-07-20 SWR26W CPH → ZRH Jul 20, 13:25 UTCJul 20, 14:45 UTC1h 20m
2026-07-20 SWR7VE ZRH → CPH Jul 20, 10:50 UTCJul 20, 12:15 UTC1h 25m
2026-07-20 SWR90Y BDS → ZRH Jul 20, 07:55 UTCJul 20, 09:35 UTC1h 40m
2026-07-20 SWR4KG ZRH → BDS Jul 20, 05:05 UTCJul 20, 06:35 UTC1h 30m
2026-07-19 SWR37H - Jul 19, 18:10 UTCJul 19, 19:55 UTC1h 45m
2026-07-19 SWR7CP ZRH → BDS Jul 19, 15:30 UTCJul 19, 16:55 UTC1h 25m
2026-07-19 SWR20D OPO → ZRH Jul 19, 11:55 UTCJul 19, 14:00 UTC2h 5m
2026-07-19 SWR8BC ZRH → OPO Jul 19, 08:20 UTCJul 19, 10:35 UTC2h 15m
2026-07-19 SWR1ET AGP → ZRH Jul 19, 04:45 UTCJul 19, 07:00 UTC2h 15m
2026-07-18 SWR2120 - Jul 18, 19:50 UTCJul 18, 22:20 UTC2h 30m
2026-07-18 SWR493Z - Jul 18, 13:30 UTCJul 18, 14:35 UTC1h 5m
2026-07-18 SWR27G ZRH → HAM Jul 18, 11:20 UTCJul 18, 12:25 UTC1h 5m
2026-07-18 SWR52Y BRU → ZRH Jul 18, 07:55 UTCJul 18, 08:50 UTC55m
2026-07-18 SWR756C ZRH → BRU Jul 18, 05:45 UTCJul 18, 06:40 UTC55m
2026-07-17 SWR1PX NCE → ZRH Jul 17, 17:40 UTCJul 17, 18:25 UTC45m
2026-07-17 SWR57C ZRH → NCE Jul 17, 15:35 UTCJul 17, 16:19 UTC45m

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

Mode-S 4B194B frequently asked

What is Mode-S code 4B194B?
4B194B is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JPB.
Where is Mode-S 4B194B registered?
Mode-S code 4B194B is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B194B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B194B, octal 22614513, decimal 4,921,675.
What flights does 4B194B operate?
Mode-S 4B194B has broadcast 20 distinct callsigns, including SWR542D, SWR2BK, SWR8HG, SWR2GX, SWR9AM.