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 55m ago
Flights observed
316
Distinct callsigns
20
Country
CH
Last broadcast
55m ago

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 - 10 2026-07-04
SWR8HG - 9 2026-07-04
SWR2BK - 9 2026-07-04
SWR2GX - 8 2026-07-04
SWR9AM - 7 2026-07-09
SWR755L - 7 2026-07-11
SWR39L - 7 2026-07-12
SWR27M - 7 2026-07-09
SWR2083 - 7 2026-07-12
SWR115Y - 7 2026-07-12
SWR756C - 6 2026-07-14
SWR52Y - 6 2026-07-13
SWR1ET - 6 2026-07-05
SWR98P Swiss International Air Lines 5 2026-06-07
SWR5AM - 5 2026-07-13
SWR477L - 5 2026-06-19
SWR2XH Swiss International Air Lines 5 2026-06-07
SWR2120 - 5 2026-07-04
SWR1ZB - 5 2026-07-13
SWR1KV - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR756C - Jul 14, 06:25 UTCJul 14, 06:45 UTC20m
2026-07-13 SWR1ZB ATH → ZRH Jul 13, 14:25 UTCJul 13, 16:50 UTC2h 25m
2026-07-13 SWR5AM ZRH → ATH Jul 13, 11:10 UTCJul 13, 13:15 UTC2h 5m
2026-07-13 SWR52Y BRU → ZRH Jul 13, 08:50 UTCJul 13, 09:50 UTC1h 0m
2026-07-13 SWR756C ZRH → BRU Jul 13, 06:10 UTCJul 13, 07:10 UTC1h 0m
2026-07-12 SWR39L - Jul 12, 20:20 UTCJul 12, 21:30 UTC1h 10m
2026-07-12 SWR115Y ZRH → LHR Jul 12, 17:10 UTCJul 12, 18:40 UTC1h 30m
2026-07-12 SWR1253 ARN → ZRH Jul 12, 12:55 UTCJul 12, 15:01 UTC2h 5m
2026-07-12 SWR1252 ZRH → ARN Jul 12, 09:35 UTCJul 12, 11:35 UTC2h 0m
2026-07-12 SWR2083 LIS → ZRH Jul 12, 05:15 UTCJul 12, 07:25 UTC2h 10m
2026-07-11 SWR755L ZRH → LIS Jul 11, 20:05 UTCJul 11, 22:35 UTC2h 30m
2026-07-11 SWR438A LHR → ZRH Jul 11, 17:10 UTCJul 11, 18:25 UTC1h 15m
2026-07-11 SWR21M ZRH → LHR Jul 11, 14:05 UTCJul 11, 15:25 UTC1h 20m
2026-07-11 SWR731C HAM → ZRH Jul 11, 09:05 UTCJul 11, 10:10 UTC1h 5m
2026-07-11 SWR92W ZRH → HAM Jul 11, 06:45 UTCJul 11, 07:55 UTC1h 10m
2026-07-11 SWR4VE BCN → ZRH Jul 11, 04:15 UTCJul 11, 05:35 UTC1h 20m
2026-07-10 SWR4KB ZRH → BCN Jul 10, 21:30 UTCJul 10, 23:35 UTC2h 5m
2026-07-10 SWR388G HAM → ZRH Jul 10, 19:10 UTCJul 10, 20:15 UTC1h 5m
2026-07-10 SWR1TX ZRH → HAM Jul 10, 17:00 UTCJul 10, 18:10 UTC1h 10m
2026-07-10 SWR90Y - Jul 10, 10:50 UTCJul 10, 12:30 UTC1h 40m
2026-07-10 SWR4KG - Jul 10, 08:00 UTCJul 10, 09:20 UTC1h 20m
2026-07-09 SWR27M - Jul 9, 18:00 UTCJul 9, 19:20 UTC1h 20m
2026-07-09 SWR9AM ZRH → LHR Jul 9, 15:20 UTCJul 9, 16:40 UTC1h 20m
2026-07-09 SWR2YB ARN → ZRH Jul 9, 11:25 UTCJul 9, 13:20 UTC1h 55m
2026-07-09 SWR5ZM ZRH → ARN Jul 9, 08:05 UTCJul 9, 10:15 UTC2h 10m
2026-07-09 SWR5XL - Jul 9, 05:35 UTCJul 9, 06:30 UTC55m
2026-07-08 SWR9LC ZRH → BER Jul 8, 19:25 UTCJul 8, 20:40 UTC1h 15m
2026-07-08 SWR438A - Jul 8, 16:30 UTCJul 8, 17:45 UTC1h 15m
2026-07-08 SWR21M ZRH → LHR Jul 8, 13:50 UTCJul 8, 15:10 UTC1h 20m
2026-07-08 SWR5GT - Jul 8, 11:05 UTCJul 8, 12:40 UTC1h 35m
2026-07-08 SWR2EP - Jul 8, 08:25 UTCJul 8, 09:50 UTC1h 25m
2026-07-08 SWR1HW ATH → ZRH Jul 8, 04:10 UTCJul 8, 06:45 UTC2h 35m
2026-07-07 SWR7MV ZRH → ATH Jul 7, 19:35 UTCJul 7, 21:45 UTC2h 10m
2026-07-07 SWR262C - Jul 7, 15:40 UTCJul 7, 17:55 UTC2h 15m
2026-07-07 SWR3WL - Jul 7, 11:35 UTCJul 7, 13:45 UTC2h 10m
2026-07-06 SWR27M - Jul 6, 18:10 UTCJul 6, 19:15 UTC1h 5m
2026-07-06 SWR9AM ZRH → LHR Jul 6, 15:45 UTCJul 6, 16:55 UTC1h 10m
2026-07-06 SWR935L ATH → ZRH Jul 6, 11:40 UTCJul 6, 14:10 UTC2h 30m
2026-07-06 SWR9LA ZRH → ATH Jul 6, 08:00 UTCJul 6, 10:10 UTC2h 10m
2026-07-06 SWR8AD CPH → ZRH Jul 6, 04:40 UTCJul 6, 05:55 UTC1h 15m
2026-07-05 SWR44X ZRH → CPH Jul 5, 20:15 UTCJul 5, 22:00 UTC1h 45m
2026-07-05 SWR1YL - Jul 5, 17:10 UTCJul 5, 18:35 UTC1h 25m
2026-07-05 SWR1958 ZRH → BCN Jul 5, 14:25 UTCJul 5, 15:45 UTC1h 20m
2026-07-05 SWR5MP - Jul 5, 11:30 UTCJul 5, 12:45 UTC1h 15m
2026-07-05 SWR8PZ ZRH → LHR Jul 5, 08:45 UTCJul 5, 10:10 UTC1h 25m
2026-07-05 SWR1ET - Jul 5, 04:50 UTCJul 5, 07:05 UTC2h 15m
2026-07-04 SWR2120 - Jul 4, 19:55 UTCJul 4, 22:10 UTC2h 15m
2026-07-04 SWR2GX LIS → ZRH Jul 4, 16:15 UTCJul 4, 18:25 UTC2h 10m
2026-07-04 SWR2BK ZRH → LIS Jul 4, 11:15 UTCJul 4, 14:05 UTC2h 50m
2026-07-04 SWR8HG - Jul 4, 08:20 UTCJul 4, 09:30 UTC1h 10m

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 55m ago.
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, SWR8HG, SWR2BK, SWR2GX, SWR9AM.