Apparatus

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sensors Mode-S transponder

4B1699

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-ION · AIRBUS A-321

Hex
4B1699
Octal
22613231
Decimal
4,920,985
Country
CH
Tail
HB-ION
Type
A321
No current signal · last broadcast 5h ago
Flights observed
444
Distinct callsigns
20
Country
CH
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4B1699.

Country allocation

The ICAO 24-bit address 4B1699 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
SWR96M - 13 2026-07-13
SWR44Y - 13 2026-07-13
SWR5XH - 9 2026-07-13
SWR87C - 8 2026-07-05
SWR4TD - 8 2026-07-05
SWR98P - 7 2026-07-01
SWR2XH - 7 2026-07-01
SWR2EG - 7 2026-07-13
SWR9LA Swiss International Air Lines 6 2026-06-15
SWR935L Swiss International Air Lines 6 2026-06-15
SWR5GT - 6 2026-06-22
SWR4LM - 6 2026-06-25
SWR493Z - 6 2026-07-09
SWR388G - 6 2026-07-11
SWR27G - 6 2026-07-09
SWR1TX - 6 2026-07-11
SWR1PL - 6 2026-07-04
SWR9VE Swiss International Air Lines 5 2026-06-11
SWR7VE - 5 2026-07-02
SWR5CB - 5 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWR1KV ZRH → ARN Jul 13, 19:45 UTCJul 13, 21:50 UTC2h 5m
2026-07-13 SWR5XH - Jul 13, 16:55 UTCJul 13, 18:20 UTC1h 25m
2026-07-13 SWR2EG - Jul 13, 13:50 UTCJul 13, 15:20 UTC1h 30m
2026-07-13 SWR96M - Jul 13, 09:05 UTCJul 13, 10:30 UTC1h 25m
2026-07-13 SWR44Y - Jul 13, 05:31 UTCJul 13, 06:55 UTC1h 25m
2026-07-13 SWR44Y ZRH → ZRH Jul 13, 05:15 UTCJul 13, 05:20 UTC5m
2026-07-12 SWR2GX LIS → ZRH Jul 12, 16:55 UTCJul 12, 19:05 UTC2h 10m
2026-07-12 SWR2BK ZRH → LIS Jul 12, 12:50 UTCJul 12, 15:35 UTC2h 45m
2026-07-12 SWR731C HAM → ZRH Jul 12, 09:20 UTCJul 12, 10:25 UTC1h 5m
2026-07-12 SWR92W ZRH → HAM Jul 12, 06:55 UTCJul 12, 08:01 UTC1h 5m
2026-07-12 SWR4VE BCN → ZRH Jul 12, 04:15 UTCJul 12, 05:35 UTC1h 20m
2026-07-11 SWR4KB ZRH → BCN Jul 11, 20:25 UTCJul 11, 21:45 UTC1h 20m
2026-07-11 SWR388G - Jul 11, 17:55 UTCJul 11, 18:55 UTC1h 0m
2026-07-11 SWR1TX ZRH → HAM Jul 11, 15:25 UTCJul 11, 16:40 UTC1h 15m
2026-07-11 SWR98F SKG → ZRH Jul 11, 11:00 UTCJul 11, 13:10 UTC2h 10m
2026-07-11 SWR79B ZRH → SKG Jul 11, 07:55 UTCJul 11, 09:45 UTC1h 50m
2026-07-11 SWR8AD CPH → ZRH Jul 11, 04:50 UTCJul 11, 06:20 UTC1h 30m
2026-07-10 SWR44X - Jul 10, 20:35 UTCJul 10, 22:00 UTC1h 25m
2026-07-10 SWR1YL BCN → ZRH Jul 10, 18:05 UTCJul 10, 19:25 UTC1h 20m
2026-07-10 SWR1958 ZRH → BCN Jul 10, 15:20 UTCJul 10, 16:45 UTC1h 25m
2026-07-10 SWR2YB ARN → ZRH Jul 10, 11:20 UTCJul 10, 13:20 UTC2h 0m
2026-07-10 SWR5ZM - Jul 10, 08:05 UTCJul 10, 10:15 UTC2h 10m
2026-07-10 SWR5XL - Jul 10, 05:25 UTCJul 10, 06:35 UTC1h 10m
2026-07-09 SWR9LC ZRH → BER Jul 9, 19:40 UTCJul 9, 20:50 UTC1h 10m
2026-07-09 SWR493Z HAM → ZRH Jul 9, 13:30 UTCJul 9, 14:30 UTC1h 0m
2026-07-09 SWR27G ZRH → HAM Jul 9, 11:15 UTCJul 9, 12:25 UTC1h 10m
2026-07-08 SWR42V - Jul 8, 18:35 UTCJul 8, 19:25 UTC50m
2026-07-08 SWR1DE ZRH → CDG Jul 8, 16:20 UTCJul 8, 17:15 UTC55m
2026-07-08 SWR493Z HAM → ZRH Jul 8, 13:55 UTCJul 8, 14:50 UTC55m
2026-07-08 SWR27G ZRH → HAM Jul 8, 11:15 UTCJul 8, 12:35 UTC1h 20m
2026-07-08 SWR2XL GVA → ZRH Jul 8, 08:45 UTCJul 8, 09:20 UTC35m
2026-07-08 SWR915W ZRH → GVA Jul 8, 05:55 UTCJul 8, 06:30 UTC35m
2026-07-07 SWR204K MXP → ZRH Jul 7, 18:05 UTCJul 7, 18:35 UTC30m
2026-07-07 SWR7WA ZRH → MXP Jul 7, 16:35 UTCJul 7, 17:05 UTC30m
2026-07-07 SWR3VD - Jul 7, 13:50 UTCJul 7, 15:30 UTC1h 40m
2026-07-07 SWR8EM - Jul 7, 11:05 UTCJul 7, 12:15 UTC1h 10m
2026-07-06 SWR2GX LIS → ZRH Jul 6, 15:50 UTCJul 6, 18:10 UTC2h 20m
2026-07-06 SWR2BK ZRH → LIS Jul 6, 12:00 UTCJul 6, 14:25 UTC2h 25m
2026-07-06 SWR2WX - Jul 6, 08:05 UTCJul 6, 09:25 UTC1h 20m
2026-07-06 SWR193T ZRH → CPH Jul 6, 05:25 UTCJul 6, 07:00 UTC1h 35m
2026-07-05 SWR979E BER → ZRH Jul 5, 19:35 UTCJul 5, 20:40 UTC1h 5m
2026-07-05 SWR15V ZRH → BER Jul 5, 17:20 UTCJul 5, 18:30 UTC1h 10m
2026-07-05 SWR4TD BCN → ZRH Jul 5, 14:05 UTCJul 5, 15:35 UTC1h 30m
2026-07-05 SWR87C ZRH → BCN Jul 5, 11:00 UTCJul 5, 12:15 UTC1h 15m
2026-07-05 SWR2XL GVA → ZRH Jul 5, 08:30 UTCJul 5, 09:10 UTC40m
2026-07-05 SWR915W ZRH → GVA Jul 5, 06:05 UTCJul 5, 06:40 UTC35m
2026-07-04 SWR8X BER → ZRH Jul 4, 18:10 UTCJul 4, 19:10 UTC1h 0m
2026-07-04 SWR948D ZRH → BER Jul 4, 15:55 UTCJul 4, 17:05 UTC1h 10m
2026-07-04 SWR5CB BER → ZRH Jul 4, 13:25 UTCJul 4, 14:30 UTC1h 5m
2026-07-04 SWR1PL ZRH → BER Jul 4, 11:05 UTCJul 4, 12:15 UTC1h 10m

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

Mode-S 4B1699 frequently asked

What is Mode-S code 4B1699?
4B1699 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-ION.
Where is Mode-S 4B1699 registered?
Mode-S code 4B1699 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1699 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1699, octal 22613231, decimal 4,920,985.
What flights does 4B1699 operate?
Mode-S 4B1699 has broadcast 20 distinct callsigns, including SWR96M, SWR44Y, SWR5XH, SWR87C, SWR4TD.