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
Broadcasting now · callsign SWR2120 · 37,000 ft
Flights observed
269
Distinct callsigns
20
Country
CH
Last broadcast
5m ago

Current position

4B194A is currently broadcasting. Map zoomed to live position.

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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SWR2120 ZRH → AGP May 30, 19:45 UTCMay 30, 20:30 UTC45m
2026-05-30 SWR2GX LIS → ZRH May 30, 15:20 UTCMay 30, 17:40 UTC2h 20m
2026-05-30 SWR2BK ZRH → LIS May 30, 11:20 UTCMay 30, 13:45 UTC2h 25m
2026-05-30 SWR96M BCN → BCN May 30, 08:10 UTCMay 30, 09:30 UTC1h 20m
2026-05-30 SWR44Y ZRH → BCN May 30, 05:30 UTCMay 30, 06:55 UTC1h 25m
2026-05-29 SWR9VE ZRH → OPO May 29, 18:10 UTCMay 29, 19:45 UTC1h 35m
2026-05-29 SWR3GH ZRH → BCN May 29, 15:40 UTCMay 29, 17:05 UTC1h 25m
2026-05-29 SWR1CK DUB → ZRH May 29, 12:35 UTCMay 29, 14:15 UTC1h 40m
2026-05-29 SWR477L ZRH → ZRH May 29, 09:25 UTCMay 29, 11:20 UTC1h 55m
2026-05-29 SWR2083 LIS → ZRH May 29, 05:40 UTCMay 29, 08:05 UTC2h 25m
2026-05-28 SWR755L ZRH → ZRH May 28, 19:50 UTCMay 28, 22:10 UTC2h 20m
2026-05-28 SWR1CK DUB → ZRH May 28, 12:50 UTCMay 28, 14:30 UTC1h 40m
2026-05-28 SWR477L ZRH → ZRH May 28, 09:05 UTCMay 28, 11:05 UTC2h 0m
2026-05-28 SWR2083 LIS → ZRH May 28, 05:15 UTCMay 28, 07:35 UTC2h 20m
2026-05-27 SWR755L ZRH → ZRH May 27, 19:40 UTCMay 27, 22:05 UTC2h 25m
2026-05-27 SWR262C AGP → ZRH May 27, 15:35 UTCMay 27, 17:40 UTC2h 5m
2026-05-27 SWR3WL ZRH → ZRH May 27, 12:05 UTCMay 27, 14:30 UTC2h 25m
2026-05-27 SWR96M BCN → BCN May 27, 08:40 UTCMay 27, 10:10 UTC1h 30m
2026-05-27 SWR44Y ZRH → BCN May 27, 05:35 UTCMay 27, 06:55 UTC1h 20m
2026-05-26 SWR2GX LIS → ZRH May 26, 15:29 UTCMay 26, 17:50 UTC2h 20m
2026-05-26 SWR2BK ZRH → LIS May 26, 11:15 UTCMay 26, 13:45 UTC2h 30m
2026-05-26 SWR4LM - May 26, 08:04 UTCMay 26, 09:40 UTC1h 35m
2026-05-26 SWR242E ZRH → PMI May 26, 05:00 UTCMay 26, 06:34 UTC1h 35m
2026-05-25 SWR27M LHR → ZRH May 25, 18:20 UTCMay 25, 19:35 UTC1h 15m
2026-05-25 SWR9AM VIE → GVA May 25, 15:35 UTCMay 25, 16:50 UTC1h 15m
2026-05-25 SWR2XH AGP → ZRH May 25, 11:45 UTCMay 25, 14:00 UTC2h 15m
2026-05-25 SWR98P ZRH → AGP May 25, 08:00 UTCMay 25, 10:15 UTC2h 15m
2026-05-25 SWR1PM ARN → ZRH May 25, 04:30 UTCMay 25, 06:40 UTC2h 10m
2026-05-24 SWR1KV ZRH → ARN May 24, 20:05 UTCMay 24, 21:45 UTC1h 40m
2026-05-24 SWR388G HAM → ZRH May 24, 17:25 UTCMay 24, 18:35 UTC1h 10m
2026-05-24 SWR1TX ZRH → HAM May 24, 15:15 UTCMay 24, 16:25 UTC1h 10m
2026-05-24 SWR935L ATH → ZRH May 24, 11:40 UTCMay 24, 14:05 UTC2h 25m
2026-05-24 SWR9LA ZRH → ATH May 24, 07:45 UTCMay 24, 10:05 UTC2h 20m
2026-05-24 SWR49L OTP → ZRH May 24, 03:35 UTCMay 24, 05:30 UTC1h 55m
2026-05-23 SWR1886 ZRH → OTP May 23, 20:15 UTCMay 23, 22:10 UTC1h 55m
2026-05-23 SWR262C AGP → ZRH May 23, 15:15 UTCMay 23, 17:30 UTC2h 15m
2026-05-23 SWR3WL ZRH → ZRH May 23, 11:40 UTCMay 23, 13:55 UTC2h 15m
2026-05-23 SWR4LM - May 23, 08:30 UTCMay 23, 10:00 UTC1h 30m
2026-05-23 SWR242E ZRH → PMI May 23, 05:15 UTCMay 23, 06:40 UTC1h 25m
2026-05-22 SWR27M LHR → ZRH May 22, 18:40 UTCMay 22, 19:55 UTC1h 15m
2026-05-22 SWR9AM VIE → GVA May 22, 16:05 UTCMay 22, 17:25 UTC1h 20m
2026-05-22 SWR2XH AGP → ZRH May 22, 11:50 UTCMay 22, 14:00 UTC2h 10m
2026-05-22 SWR98P ZRH → AGP May 22, 07:50 UTCMay 22, 10:05 UTC2h 15m
2026-05-22 SWR1PM ARN → ZRH May 22, 04:15 UTCMay 22, 06:20 UTC2h 5m
2026-05-21 SWR1KV ZRH → ARN May 21, 20:05 UTCMay 21, 22:20 UTC2h 15m
2026-05-21 SWR589X ARN → ZRH May 21, 15:00 UTCMay 21, 17:00 UTC2h 0m
2026-05-21 SWR9PX ZRH → ALC May 21, 11:30 UTCMay 21, 13:45 UTC2h 15m
2026-05-21 SWR4TL FCO → ZRH May 21, 08:35 UTCMay 21, 10:00 UTC1h 25m
2026-05-21 SWR2CL ZRH → FCO May 21, 06:15 UTCMay 21, 07:10 UTC55m
2026-05-20 SWR27M LHR → ZRH May 20, 18:10 UTCMay 20, 19:25 UTC1h 15m

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?
Yes. Mode-S 4B194A is currently airborne.
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 SWR1PM, SWR3WL, SWR1KV, SWR98P, SWR2XH.