Apparatus

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sensors Mode-S transponder

4B1617

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IJN · AIRBUS A-320

Hex
4B1617
Octal
22613027
Decimal
4,920,855
Country
CH
Tail
HB-IJN
Type
A320
No current signal · last broadcast 2d ago
Flights observed
411
Distinct callsigns
20
Country
CH
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4B1617.

Country allocation

The ICAO 24-bit address 4B1617 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
SWR4ET - 10 2026-07-05
SWR3HY - 10 2026-06-19
SWR291X - 10 2026-06-19
SWR9LC - 9 2026-07-06
SWR98G Swiss International Air Lines 9 2026-06-09
SWR5YV Swiss International Air Lines 9 2026-06-09
SWR1LK - 9 2026-07-05
SWR9TP - 8 2026-06-29
SWR5CB - 8 2026-07-11
SWR3ZK - 8 2026-06-29
SWR1PL - 8 2026-07-11
SWR7VE Swiss International Air Lines 7 2026-06-02
SWR5XL - 7 2026-07-07
SWR533X Swiss International Air Lines 7 2026-06-16
SWR3ZC - 7 2026-06-18
SWR26W Swiss International Air Lines 7 2026-06-02
SWR3PT Swiss International Air Lines 6 2026-06-16
SWR1ZB - 6 2026-07-10
SWR5AM - 5 2026-07-10
SWR40L - 5 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 SWR1YL - Jul 12, 17:05 UTCJul 12, 18:25 UTC1h 20m
2026-07-12 SWR1958 ZRH → BCN Jul 12, 14:40 UTCJul 12, 16:01 UTC1h 20m
2026-07-11 SWR5CB - Jul 11, 13:45 UTCJul 11, 14:50 UTC1h 5m
2026-07-11 SWR1PL ZRH → BER Jul 11, 11:10 UTCJul 11, 12:20 UTC1h 10m
2026-07-10 SWR1ZB ATH → ZRH Jul 10, 14:40 UTCJul 10, 17:10 UTC2h 30m
2026-07-10 SWR5AM ZRH → ATH Jul 10, 11:05 UTCJul 10, 13:10 UTC2h 5m
2026-07-10 SWR5DA - Jul 10, 08:10 UTCJul 10, 09:45 UTC1h 35m
2026-07-10 SWR4PC - Jul 10, 05:35 UTCJul 10, 06:45 UTC1h 10m
2026-07-09 SWR42V - Jul 9, 18:20 UTCJul 9, 19:15 UTC55m
2026-07-09 SWR1DE - Jul 9, 15:55 UTCJul 9, 16:50 UTC55m
2026-07-08 SWR37H BDS → ZRH Jul 8, 18:15 UTCJul 8, 20:00 UTC1h 45m
2026-07-08 SWR7CP ZRH → BDS Jul 8, 15:40 UTCJul 8, 17:00 UTC1h 20m
2026-07-08 SWR90Y - Jul 8, 08:15 UTCJul 8, 09:55 UTC1h 40m
2026-07-08 SWR4KG - Jul 8, 05:05 UTCJul 8, 06:30 UTC1h 25m
2026-07-07 SWR9VE BCN → ZRH Jul 7, 18:10 UTCJul 7, 19:30 UTC1h 20m
2026-07-07 SWR3GH ZRH → BCN Jul 7, 15:45 UTCJul 7, 17:00 UTC1h 15m
2026-07-07 SWR2XH - Jul 7, 11:40 UTCJul 7, 13:55 UTC2h 15m
2026-07-07 SWR98P - Jul 7, 07:55 UTCJul 7, 10:10 UTC2h 15m
2026-07-07 SWR5XL - Jul 7, 05:30 UTCJul 7, 06:35 UTC1h 5m
2026-07-06 SWR9LC ZRH → BER Jul 6, 19:55 UTCJul 6, 21:05 UTC1h 10m
2026-07-06 SWR204K MXP → ZRH Jul 6, 18:05 UTCJul 6, 18:40 UTC35m
2026-07-06 SWR7WA ZRH → MXP Jul 6, 16:10 UTCJul 6, 16:55 UTC45m
2026-07-06 SWR7AK NCE → ZRH Jul 6, 08:15 UTCJul 6, 09:15 UTC1h 0m
2026-07-06 SWR42B ZRH → NCE Jul 6, 06:20 UTCJul 6, 07:15 UTC55m
2026-07-05 SWR1LK FRA → ZRH Jul 5, 19:25 UTCJul 5, 20:10 UTC45m
2026-07-05 SWR4ET ZRH → FRA Jul 5, 17:20 UTCJul 5, 18:05 UTC45m
2026-07-05 SWR2ZT - Jul 5, 14:00 UTCJul 5, 14:55 UTC55m
2026-07-05 SWR1ZM ZRH → VCE Jul 5, 12:10 UTCJul 5, 12:55 UTC45m
2026-07-04 SWR1LK FRA → ZRH Jul 4, 19:20 UTCJul 4, 19:55 UTC35m
2026-07-04 SWR4ET ZRH → FRA Jul 4, 17:15 UTCJul 4, 18:00 UTC45m
2026-07-03 SWR589X ARN → ZRH Jul 3, 15:30 UTCJul 3, 17:30 UTC2h 0m
2026-07-03 SWR9PX ZRH → ARN Jul 3, 11:10 UTCJul 3, 13:10 UTC2h 0m
2026-07-02 SWR1T NCE → ZRH Jul 2, 18:25 UTCJul 2, 19:20 UTC55m
2026-07-02 SWR351E ZRH → NCE Jul 2, 16:30 UTCJul 2, 17:30 UTC1h 0m
2026-07-02 SWR4CA - Jul 2, 13:50 UTCJul 2, 15:05 UTC1h 15m
2026-07-02 SWR248Z - Jul 2, 10:55 UTCJul 2, 12:15 UTC1h 20m
2026-07-01 SWR171D - Jul 1, 18:20 UTCJul 1, 19:35 UTC1h 15m
2026-07-01 SWR2TV - Jul 1, 15:50 UTCJul 1, 17:15 UTC1h 25m
2026-07-01 SWR5051 ATH → ZRH Jul 1, 13:10 UTCJul 1, 14:35 UTC1h 25m
2026-07-01 SWR268A ZRH → BUD Jul 1, 06:00 UTCJul 1, 07:20 UTC1h 20m
2026-06-30 SWR262C - Jun 30, 15:15 UTCJun 30, 17:30 UTC2h 15m
2026-06-30 SWR3WL - Jun 30, 11:30 UTCJun 30, 13:40 UTC2h 10m
2026-06-30 SWR462F WAW → ZRH Jun 30, 08:20 UTCJun 30, 09:55 UTC1h 35m
2026-06-30 SWR3CA ZRH → WAW Jun 30, 05:50 UTCJun 30, 07:20 UTC1h 30m
2026-06-29 SWR9TP GVA → ZRH Jun 29, 19:39 UTCJun 29, 20:15 UTC35m
2026-06-29 SWR3ZK - Jun 29, 17:30 UTCJun 29, 18:14 UTC45m
2026-06-29 SWR9YP ZRH → LHR Jun 29, 14:25 UTCJun 29, 15:24 UTC1h 0m
2026-06-29 SWR9GE ZRH → BER Jun 29, 11:55 UTCJun 29, 13:04 UTC1h 10m
2026-06-29 SWR3AP - Jun 29, 04:25 UTCJun 29, 06:19 UTC1h 55m
2026-06-28 SWR40L ZRH → VLC Jun 28, 20:54 UTCJun 28, 22:34 UTC1h 40m

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

Mode-S 4B1617 frequently asked

What is Mode-S code 4B1617?
4B1617 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IJN.
Where is Mode-S 4B1617 registered?
Mode-S code 4B1617 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1617 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1617, octal 22613027, decimal 4,920,855.
What flights does 4B1617 operate?
Mode-S 4B1617 has broadcast 20 distinct callsigns, including SWR4ET, SWR3HY, SWR291X, SWR9LC, SWR98G.