Apparatus

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sensors Mode-S transponder

4B169A

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IOO · AIRBUS A-321

Hex
4B169A
Octal
22613232
Decimal
4,920,986
Country
CH
Tail
HB-IOO
Type
A321
No current signal · last broadcast 4h ago
Flights observed
414
Distinct callsigns
20
Country
CH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B169A.

Country allocation

The ICAO 24-bit address 4B169A 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
SWR9PX - 10 2026-07-13
SWR589X - 10 2026-07-13
SWR5TV - 9 2026-06-28
SWR82L - 8 2026-06-28
SWR9LA - 7 2026-07-04
SWR9BL - 7 2026-07-09
SWR935L - 7 2026-07-04
SWR87C - 7 2026-07-06
SWR4TD - 7 2026-07-06
SWR4LM - 7 2026-06-19
SWR259T Swiss International Air Lines 7 2026-07-09
SWR9VE - 6 2026-07-12
SWR98P - 6 2026-07-12
SWR4TL Swiss International Air Lines 6 2026-06-13
SWR493Z - 6 2026-07-11
SWR2XH - 6 2026-07-12
SWR27G - 6 2026-07-11
SWR242E - 6 2026-06-19
SWR9TP - 5 2026-07-06
SWR96M - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWR7MV ZRH → ATH Jul 13, 20:05 UTCJul 13, 22:10 UTC2h 5m
2026-07-13 SWR589X ARN → ZRH Jul 13, 14:05 UTCJul 13, 16:05 UTC2h 0m
2026-07-13 SWR9PX ZRH → ARN Jul 13, 11:05 UTCJul 13, 13:00 UTC1h 55m
2026-07-12 SWR9VE BCN → ZRH Jul 12, 19:25 UTCJul 12, 20:50 UTC1h 25m
2026-07-12 SWR3GH ZRH → BCN Jul 12, 15:55 UTCJul 12, 17:25 UTC1h 30m
2026-07-12 SWR2XH - Jul 12, 11:55 UTCJul 12, 14:05 UTC2h 10m
2026-07-12 SWR98P - Jul 12, 08:01 UTCJul 12, 10:25 UTC2h 25m
2026-07-12 SWR8AD CPH → ZRH Jul 12, 04:50 UTCJul 12, 06:15 UTC1h 25m
2026-07-11 SWR44X ZRH → CPH Jul 11, 19:50 UTCJul 11, 21:20 UTC1h 30m
2026-07-11 SWR8KY PRG → ZRH Jul 11, 17:45 UTCJul 11, 18:40 UTC55m
2026-07-11 SWR1488 ZRH → PRG Jul 11, 15:45 UTCJul 11, 16:45 UTC1h 0m
2026-07-11 SWR493Z HAM → ZRH Jul 11, 13:25 UTCJul 11, 14:30 UTC1h 5m
2026-07-11 SWR27G ZRH → HAM Jul 11, 10:55 UTCJul 11, 12:05 UTC1h 10m
2026-07-11 SWR2WX CPH → ZRH Jul 11, 08:10 UTCJul 11, 09:30 UTC1h 20m
2026-07-11 SWR193T ZRH → CPH Jul 11, 05:31 UTCJul 11, 06:55 UTC1h 25m
2026-07-10 SWR72L MUC → ZRH Jul 10, 19:20 UTCJul 10, 20:05 UTC45m
2026-07-10 SWR7PE ZRH → MUC Jul 10, 17:35 UTCJul 10, 18:10 UTC35m
2026-07-10 SWR589X ARN → ZRH Jul 10, 14:20 UTCJul 10, 16:25 UTC2h 5m
2026-07-10 SWR9PX ZRH → ARN Jul 10, 10:50 UTCJul 10, 13:00 UTC2h 10m
2026-07-10 SWR2XL GVA → ZRH Jul 10, 08:45 UTCJul 10, 09:20 UTC35m
2026-07-10 SWR915W ZRH → GVA Jul 10, 06:10 UTCJul 10, 06:50 UTC40m
2026-07-09 SWR259T FCO → ZRH Jul 9, 18:40 UTCJul 9, 19:50 UTC1h 10m
2026-07-09 SWR9BL - Jul 9, 16:35 UTCJul 9, 17:30 UTC55m
2026-07-09 SWR26W CPH → ZRH Jul 9, 13:45 UTCJul 9, 15:00 UTC1h 15m
2026-07-09 SWR7VE ZRH → CPH Jul 9, 11:10 UTCJul 9, 12:40 UTC1h 30m
2026-07-08 SWR26W - Jul 8, 14:10 UTCJul 8, 15:25 UTC1h 15m
2026-07-08 SWR7VE ZRH → CPH Jul 8, 11:20 UTCJul 8, 13:05 UTC1h 45m
2026-07-08 SWR9YD BUD → ZRH Jul 8, 08:30 UTCJul 8, 09:50 UTC1h 20m
2026-07-08 SWR268A ZRH → BUD Jul 8, 05:45 UTCJul 8, 07:00 UTC1h 15m
2026-07-07 SWR72L - Jul 7, 19:05 UTCJul 7, 19:35 UTC30m
2026-07-07 SWR7PE ZRH → MUC Jul 7, 17:30 UTCJul 7, 18:05 UTC35m
2026-07-07 SWR589X ARN → ZRH Jul 7, 13:55 UTCJul 7, 16:00 UTC2h 5m
2026-07-07 SWR9PX ZRH → ARN Jul 7, 10:30 UTCJul 7, 12:40 UTC2h 10m
2026-07-07 SWR5PT HAM → ZRH Jul 7, 07:40 UTCJul 7, 08:45 UTC1h 5m
2026-07-07 SWR433Y ZRH → HAM Jul 7, 05:15 UTCJul 7, 06:30 UTC1h 15m
2026-07-06 SWR9TP GVA → ZRH Jul 6, 18:40 UTCJul 6, 19:10 UTC30m
2026-07-06 SWR3ZK ZRH → GVA Jul 6, 16:50 UTCJul 6, 17:25 UTC35m
2026-07-06 SWR4TD BCN → ZRH Jul 6, 13:20 UTCJul 6, 14:45 UTC1h 25m
2026-07-06 SWR87C ZRH → BCN Jul 6, 10:50 UTCJul 6, 12:10 UTC1h 20m
2026-07-06 SWR96M BCN → ZRH Jul 6, 08:10 UTCJul 6, 09:35 UTC1h 25m
2026-07-06 SWR44Y ZRH → BCN Jul 6, 05:30 UTCJul 6, 06:55 UTC1h 25m
2026-07-05 SWR122C - Jul 5, 18:20 UTCJul 5, 20:10 UTC1h 50m
2026-07-05 SWR404 ZRH → DUB Jul 5, 15:00 UTCJul 5, 17:05 UTC2h 5m
2026-07-05 SWR2YB ARN → ZRH Jul 5, 11:15 UTCJul 5, 13:15 UTC2h 0m
2026-07-05 SWR5ZM ZRH → ARN Jul 5, 08:00 UTCJul 5, 10:05 UTC2h 5m
2026-07-04 SWR388G HAM → ZRH Jul 4, 18:20 UTCJul 4, 19:25 UTC1h 5m
2026-07-04 SWR1TX ZRH → HAM Jul 4, 15:50 UTCJul 4, 17:05 UTC1h 15m
2026-07-04 SWR935L ATH → ZRH Jul 4, 11:45 UTCJul 4, 14:10 UTC2h 25m
2026-07-04 SWR9LA ZRH → ATH Jul 4, 08:05 UTCJul 4, 10:15 UTC2h 10m
2026-07-04 SWR1PM ARN → ZRH Jul 4, 04:40 UTCJul 4, 06:45 UTC2h 5m

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

Mode-S 4B169A frequently asked

What is Mode-S code 4B169A?
4B169A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IOO.
Where is Mode-S 4B169A registered?
Mode-S code 4B169A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B169A broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B169A, octal 22613232, decimal 4,920,986.
What flights does 4B169A operate?
Mode-S 4B169A has broadcast 20 distinct callsigns, including SWR9PX, SWR589X, SWR5TV, SWR82L, SWR9LA.