Apparatus

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sensors Mode-S transponder

4B194A

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B194A
Octal
22614512
Decimal
4,921,674
Country
CH
Tail
HB-JPA
Type
A21N
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
552
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 4B194A.

Country allocation

The ICAO 24-bit address 4B194A 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
SWR2GX - 14 2026-07-17
SWR2BK - 14 2026-07-17
SWR9LA Swiss International Air Lines 13 2026-07-26
SWR935L Swiss International Air Lines 13 2026-07-26
SWR27M - 13 2026-07-03
SWR1PM Swiss International Air Lines 13 2026-07-26
SWR9AM - 12 2026-07-03
SWR8HG - 12 2026-07-11
SWR1KV Swiss International Air Lines 12 2026-07-25
SWR542D - 11 2026-07-11
SWR98P Swiss International Air Lines 9 2026-06-08
SWR755L - 9 2026-07-20
SWR477L - 9 2026-07-21
SWR3WL Swiss International Air Lines 9 2026-05-27
SWR2XH Swiss International Air Lines 9 2026-06-08
SWR2083 - 9 2026-07-21
SWR1CK - 9 2026-07-21
SWR39L Swiss International Air Lines 8 2026-07-23
SWR388G Swiss International Air Lines 8 2026-07-26
SWR262C Swiss International Air Lines 8 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR44X ZRH → CPH Jul 26, 20:00 UTCJul 26, 21:25 UTC1h 25m
2026-07-26 SWR388G HAM → ZRH Jul 26, 17:40 UTCJul 26, 18:45 UTC1h 5m
2026-07-26 SWR1TX ZRH → HAM Jul 26, 15:25 UTCJul 26, 16:35 UTC1h 10m
2026-07-26 SWR935L ATH → ZRH Jul 26, 11:40 UTCJul 26, 14:10 UTC2h 30m
2026-07-26 SWR9LA ZRH → ATH Jul 26, 08:05 UTCJul 26, 10:15 UTC2h 10m
2026-07-26 SWR1PM ARN → ZRH Jul 26, 04:30 UTCJul 26, 06:40 UTC2h 11m
2026-07-25 SWR1KV ZRH → ARN Jul 25, 20:15 UTCJul 25, 22:10 UTC1h 55m
2026-07-25 SWR589X ARN → ZRH Jul 25, 14:35 UTCJul 25, 16:45 UTC2h 10m
2026-07-25 SWR9PX ZRH → ALC Jul 25, 11:20 UTCJul 25, 13:20 UTC2h 0m
2026-07-23 SWR39L LHR → ZRH Jul 23, 19:30 UTCJul 23, 20:45 UTC1h 15m
2026-07-23 SWR115Y ZRH → LHR Jul 23, 16:50 UTCJul 23, 18:15 UTC1h 25m
2026-07-23 SWR1YT BDS → ZRH Jul 23, 13:05 UTCJul 23, 14:45 UTC1h 40m
2026-07-23 SWR3BP - Jul 23, 10:35 UTCJul 23, 11:50 UTC1h 15m
2026-07-23 SWR1HW ATH → ZRH Jul 23, 04:25 UTCJul 23, 06:55 UTC2h 30m
2026-07-22 SWR7MV ZRH → ATH Jul 22, 19:40 UTCJul 22, 21:40 UTC2h 0m
2026-07-22 SWR5XH PMI → ZRH Jul 22, 16:45 UTCJul 22, 18:20 UTC1h 35m
2026-07-22 SWR2EG - Jul 22, 13:50 UTCJul 22, 15:25 UTC1h 35m
2026-07-21 SWR125A CPH → ZRH Jul 21, 18:00 UTCJul 21, 19:20 UTC1h 20m
2026-07-21 SWR3TA ZRH → CPH Jul 21, 15:40 UTCJul 21, 17:10 UTC1h 30m
2026-07-21 SWR1CK DUB → ZRH Jul 21, 12:25 UTCJul 21, 14:10 UTC1h 45m
2026-07-21 SWR477L ZRH → DUB Jul 21, 09:20 UTCJul 21, 11:10 UTC1h 50m
2026-07-21 SWR2083 LIS → ZRH Jul 21, 05:10 UTCJul 21, 07:20 UTC2h 10m
2026-07-20 SWR755L ZRH → LIS Jul 20, 19:50 UTCJul 20, 22:35 UTC2h 45m
2026-07-20 SWR589X ARN → ZRH Jul 20, 14:20 UTCJul 20, 16:10 UTC1h 50m
2026-07-20 SWR9PX ZRH → ALC Jul 20, 11:00 UTCJul 20, 13:00 UTC2h 0m
2026-07-20 SWR4TL FCO → ZRH Jul 20, 08:40 UTCJul 20, 09:50 UTC1h 10m
2026-07-20 SWR2CL ZRH → FCO Jul 20, 05:40 UTCJul 20, 06:45 UTC1h 5m
2026-07-19 SWR589X ARN → ZRH Jul 19, 14:15 UTCJul 19, 16:20 UTC2h 5m
2026-07-19 SWR9PX ZRH → ALC Jul 19, 11:05 UTCJul 19, 13:00 UTC1h 55m
2026-07-19 SWR4TL FCO → ZRH Jul 19, 08:40 UTCJul 19, 09:50 UTC1h 10m
2026-07-19 SWR2CL ZRH → FCO Jul 19, 06:00 UTCJul 19, 07:05 UTC1h 5m
2026-07-18 SWR388G HAM → ZRH Jul 18, 18:25 UTCJul 18, 19:25 UTC1h 0m
2026-07-18 SWR1TX ZRH → HAM Jul 18, 15:45 UTCJul 18, 16:50 UTC1h 5m
2026-07-18 SWR935L ATH → ZRH Jul 18, 11:55 UTCJul 18, 14:20 UTC2h 25m
2026-07-18 SWR9LA ZRH → ATH Jul 18, 07:55 UTCJul 18, 10:05 UTC2h 10m
2026-07-18 SWR1PM ARN → ZRH Jul 18, 04:25 UTCJul 18, 06:40 UTC2h 15m
2026-07-17 SWR1KV ZRH → ARN Jul 17, 19:55 UTCJul 17, 22:00 UTC2h 5m
2026-07-17 SWR2GX LIS → ZRH Jul 17, 16:34 UTCJul 17, 18:44 UTC2h 10m
2026-07-17 SWR2BK ZRH → LIS Jul 17, 12:40 UTCJul 17, 15:29 UTC2h 50m
2026-07-17 SWR5MW - Jul 17, 08:40 UTCJul 17, 10:30 UTC1h 50m
2026-07-17 SWR89T - Jul 17, 05:45 UTCJul 17, 07:05 UTC1h 20m
2026-07-16 SWR26W - Jul 16, 13:30 UTCJul 16, 15:05 UTC1h 35m
2026-07-16 SWR7VE ZRH → CPH Jul 16, 10:55 UTCJul 16, 12:20 UTC1h 25m
2026-07-16 SWR2WX - Jul 16, 08:25 UTCJul 16, 09:45 UTC1h 20m
2026-07-16 SWR193T ZRH → CPH Jul 16, 05:55 UTCJul 16, 07:15 UTC1h 20m
2026-07-15 SWR5CB BER → ZRH Jul 15, 14:15 UTCJul 15, 15:25 UTC1h 10m
2026-07-15 SWR1PL ZRH → BER Jul 15, 11:05 UTCJul 15, 12:10 UTC1h 5m
2026-07-15 SWR4CX BEG → ZRH Jul 15, 07:55 UTCJul 15, 09:45 UTC1h 50m
2026-07-15 SWR464L ZRH → BEG Jul 15, 05:20 UTCJul 15, 06:35 UTC1h 15m
2026-07-14 SWR465Y ALC → ZRH Jul 14, 18:15 UTCJul 14, 20:00 UTC1h 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-JPA page for operator, model, and routing details .

Mode-S 4B194A frequently asked

What is Mode-S code 4B194A?
4B194A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JPA.
Where is Mode-S 4B194A registered?
Mode-S code 4B194A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B194A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B194A, octal 22614512, decimal 4,921,674.
What flights does 4B194A operate?
Mode-S 4B194A has broadcast 20 distinct callsigns, including SWR2GX, SWR2BK, SWR9LA, SWR935L, SWR27M.