Apparatus

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sensors Mode-S transponder

4B161A

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IJQ · AIRBUS A-320

Hex
4B161A
Octal
22613032
Decimal
4,920,858
Country
CH
Tail
HB-IJQ
Type
A320
No current signal · last broadcast 2h ago
Flights observed
448
Distinct callsigns
20
Country
CH
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4B161A.

Country allocation

The ICAO 24-bit address 4B161A 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
SWR98G - 12 2026-06-25
SWR915W - 12 2026-06-12
SWR5YV - 12 2026-06-25
SWR2XL Swiss International Air Lines 11 2026-06-12
SWR4ET - 10 2026-06-27
SWR336L - 10 2026-07-02
SWR1LK - 10 2026-06-27
SWR5AX - 9 2026-07-02
SWR533X - 9 2026-07-10
SWR4VE - 8 2026-07-09
SWR4KB - 8 2026-07-08
SWR3PT - 8 2026-07-10
SWR3AP Swiss International Air Lines 8 2026-05-29
SWR40L Swiss International Air Lines 7 2026-05-28
SWR9TP - 6 2026-06-23
SWR8QE - 6 2026-06-26
SWR7VE Swiss International Air Lines 6 2026-05-24
SWR7DC - 6 2026-06-26
SWR3ZK - 6 2026-06-23
SWR26W Swiss International Air Lines 6 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR5PC LGW → ZRH Jul 14, 18:30 UTCJul 14, 19:40 UTC1h 10m
2026-07-14 SWR5GM ZRH → LGW Jul 14, 16:00 UTCJul 14, 17:15 UTC1h 15m
2026-07-14 SWR2WX CPH → ZRH Jul 14, 08:20 UTCJul 14, 09:40 UTC1h 20m
2026-07-14 SWR193T ZRH → CPH Jul 14, 05:45 UTCJul 14, 07:10 UTC1h 25m
2026-07-13 SWR37H BDS → ZRH Jul 13, 18:20 UTCJul 13, 20:00 UTC1h 40m
2026-07-13 SWR7CP ZRH → BDS Jul 13, 15:55 UTCJul 13, 17:20 UTC1h 25m
2026-07-13 SWR917 - Jul 13, 08:15 UTCJul 13, 09:20 UTC1h 5m
2026-07-13 SWR207L ZRH → DRS Jul 13, 06:15 UTCJul 13, 07:05 UTC50m
2026-07-12 SWR849W DUS → ZRH Jul 12, 18:05 UTCJul 12, 18:55 UTC50m
2026-07-12 SWR43E - Jul 12, 16:10 UTCJul 12, 17:05 UTC55m
2026-07-12 SWR2PA NCE → ZRH Jul 12, 13:50 UTCJul 12, 14:45 UTC55m
2026-07-12 SWR8WA ZRH → NCE Jul 12, 11:30 UTCJul 12, 12:25 UTC55m
2026-07-11 SWR935L ATH → ZRH Jul 11, 11:35 UTCJul 11, 13:55 UTC2h 20m
2026-07-11 SWR9LA ZRH → ATH Jul 11, 07:45 UTCJul 11, 09:55 UTC2h 10m
2026-07-10 SWR125A CPH → ZRH Jul 10, 18:15 UTCJul 10, 19:40 UTC1h 25m
2026-07-10 SWR3TA ZRH → CPH Jul 10, 15:40 UTCJul 10, 17:10 UTC1h 30m
2026-07-10 SWR3PT GVA → ZRH Jul 10, 13:25 UTCJul 10, 13:55 UTC30m
2026-07-10 SWR533X ZRH → GVA Jul 10, 11:35 UTCJul 10, 12:05 UTC30m
2026-07-10 SWR3HY GVA → ZRH Jul 10, 09:15 UTCJul 10, 10:00 UTC45m
2026-07-10 SWR291X ZRH → GVA Jul 10, 07:30 UTCJul 10, 08:05 UTC35m
2026-07-10 SWR49L - Jul 10, 03:35 UTCJul 10, 05:45 UTC2h 10m
2026-07-09 SWR1886 ZRH → OTP Jul 9, 20:15 UTCJul 9, 22:00 UTC1h 45m
2026-07-09 SWR262C - Jul 9, 15:20 UTCJul 9, 17:30 UTC2h 10m
2026-07-09 SWR3WL - Jul 9, 12:00 UTCJul 9, 14:10 UTC2h 10m
2026-07-09 SWR4VE BCN → ZRH Jul 9, 04:05 UTCJul 9, 05:25 UTC1h 20m
2026-07-08 SWR4KB ZRH → BCN Jul 8, 20:25 UTCJul 8, 21:50 UTC1h 25m
2026-07-08 SWR1ZB ATH → ZRH Jul 8, 14:20 UTCJul 8, 16:45 UTC2h 25m
2026-07-08 SWR5AM ZRH → ATH Jul 8, 10:40 UTCJul 8, 12:55 UTC2h 15m
2026-07-08 SWR5PT - Jul 8, 07:50 UTCJul 8, 09:00 UTC1h 10m
2026-07-08 SWR433Y ZRH → HAM Jul 8, 05:20 UTCJul 8, 06:35 UTC1h 15m
2026-07-07 SWR1AM FRA → ZRH Jul 7, 17:05 UTCJul 7, 17:40 UTC35m
2026-07-07 SWR4B ZRH → FRA Jul 7, 15:20 UTCJul 7, 16:00 UTC40m
2026-07-07 SWR2GE - Jul 7, 08:20 UTCJul 7, 09:05 UTC45m
2026-07-07 SWR3PE ZRH → CDG Jul 7, 06:00 UTCJul 7, 06:55 UTC55m
2026-07-06 SWR125A - Jul 6, 18:10 UTCJul 6, 19:35 UTC1h 25m
2026-07-06 SWR3TA ZRH → CPH Jul 6, 15:35 UTCJul 6, 17:05 UTC1h 30m
2026-07-06 SWR98F - Jul 6, 10:40 UTCJul 6, 12:50 UTC2h 10m
2026-07-06 SWR79B ZRH → SKG Jul 6, 07:35 UTCJul 6, 09:30 UTC1h 55m
2026-07-06 SWR3ZC GVA → ZRH Jul 6, 05:40 UTCJul 6, 06:05 UTC25m
2026-07-05 SWR96B ZRH → GVA Jul 5, 21:25 UTCJul 5, 21:55 UTC30m
2026-07-05 SWR49K - Jul 5, 17:05 UTCJul 5, 18:25 UTC1h 20m
2026-07-05 SWR96V ZRH → CPH Jul 5, 14:35 UTCJul 5, 16:05 UTC1h 30m
2026-07-05 EDW445 VAR → ZRH Jul 5, 08:25 UTCJul 5, 10:40 UTC2h 15m
2026-07-05 EDW45W ZRH → VAR Jul 5, 04:50 UTCJul 5, 06:40 UTC1h 50m
2026-07-04 SWR1PX NCE → ZRH Jul 4, 17:20 UTCJul 4, 18:10 UTC50m
2026-07-04 SWR57C ZRH → NCE Jul 4, 15:25 UTCJul 4, 16:10 UTC45m
2026-07-03 SWR57Z MAD → ZRH Jul 3, 18:00 UTCJul 3, 19:50 UTC1h 50m
2026-07-03 SWR465K ZRH → MAD Jul 3, 14:50 UTCJul 3, 16:30 UTC1h 40m
2026-07-03 SWR339H LUX → ZRH Jul 3, 08:30 UTCJul 3, 09:10 UTC40m
2026-07-03 SWR5CV ZRH → LUX Jul 3, 06:45 UTCJul 3, 07:25 UTC40m

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

Mode-S 4B161A frequently asked

What is Mode-S code 4B161A?
4B161A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IJQ.
Where is Mode-S 4B161A registered?
Mode-S code 4B161A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B161A broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B161A, octal 22613032, decimal 4,920,858.
What flights does 4B161A operate?
Mode-S 4B161A has broadcast 20 distinct callsigns, including SWR98G, SWR915W, SWR5YV, SWR2XL, SWR4ET.