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 Jul 26, 22:15 UTC
Flights observed
508
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 22:15 UTC

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 Swiss International Air Lines 15 2026-07-21
SWR44Y Swiss International Air Lines 15 2026-07-21
SWR5XH Swiss International Air Lines 10 2026-07-23
SWR87C - 8 2026-07-05
SWR4TD - 8 2026-07-05
SWR2EG - 8 2026-07-23
SWR98P - 7 2026-07-01
SWR388G - 7 2026-07-19
SWR2XH - 7 2026-07-01
SWR1TX - 7 2026-07-19
SWR9LA Swiss International Air Lines 6 2026-06-15
SWR935L Swiss International Air Lines 6 2026-06-15
SWR7VE - 6 2026-07-15
SWR5GT - 6 2026-06-22
SWR4VE - 6 2026-07-20
SWR4LM - 6 2026-06-25
SWR4KB - 6 2026-07-19
SWR493Z - 6 2026-07-09
SWR27G - 6 2026-07-09
SWR26W - 6 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR2120 ZRH → AGP Jul 26, 20:10 UTCJul 26, 22:15 UTC2h 5m
2026-07-26 SWR1PX NCE → ZRH Jul 26, 18:10 UTCJul 26, 19:05 UTC55m
2026-07-26 SWR57C ZRH → NCE Jul 26, 15:25 UTCJul 26, 16:15 UTC50m
2026-07-26 SWR1CK DUB → ZRH Jul 26, 12:35 UTCJul 26, 14:10 UTC1h 35m
2026-07-26 SWR477L ZRH → ZRH Jul 26, 09:15 UTCJul 26, 11:10 UTC1h 55m
2026-07-26 SWR2083 LIS → ZRH Jul 26, 05:25 UTCJul 26, 07:55 UTC2h 31m
2026-07-25 SWR755L ZRH → ZRH Jul 25, 20:05 UTCJul 25, 22:50 UTC2h 45m
2026-07-25 SWR9WE - Jul 25, 13:30 UTCJul 25, 15:15 UTC1h 45m
2026-07-25 SWR56Z ZRH → PMO Jul 25, 11:00 UTCJul 25, 12:15 UTC1h 15m
2026-07-25 SWR1ET AGP → ZRH Jul 25, 04:50 UTCJul 25, 06:55 UTC2h 5m
2026-07-24 SWR2120 ZRH → AGP Jul 24, 20:00 UTCJul 24, 22:30 UTC2h 30m
2026-07-24 SWR5EZ ALC → ZRH Jul 24, 12:25 UTCJul 24, 14:20 UTC1h 55m
2026-07-24 SWR1V ZRH → ALC Jul 24, 09:20 UTCJul 24, 11:20 UTC2h 0m
2026-07-24 SWR8AD CPH → ZRH Jul 24, 04:40 UTCJul 24, 05:55 UTC1h 15m
2026-07-23 SWR44X ZRH → CPH Jul 23, 19:50 UTCJul 23, 21:25 UTC1h 35m
2026-07-23 SWR5XH PMI → ZRH Jul 23, 16:40 UTCJul 23, 18:20 UTC1h 40m
2026-07-23 SWR2EG - Jul 23, 13:50 UTCJul 23, 15:10 UTC1h 20m
2026-07-23 SWR90Y - Jul 23, 10:40 UTCJul 23, 12:30 UTC1h 50m
2026-07-23 SWR4KG - Jul 23, 07:55 UTCJul 23, 09:15 UTC1h 20m
2026-07-22 SWR125A CPH → ZRH Jul 22, 18:05 UTCJul 22, 19:30 UTC1h 25m
2026-07-22 SWR3TA ZRH → CPH Jul 22, 15:35 UTCJul 22, 17:05 UTC1h 30m
2026-07-22 SWR2YB ARN → ZRH Jul 22, 11:25 UTCJul 22, 13:15 UTC1h 50m
2026-07-21 SWR9LC ZRH → BER Jul 21, 19:30 UTCJul 21, 20:50 UTC1h 20m
2026-07-21 SWR589X ARN → ZRH Jul 21, 14:15 UTCJul 21, 16:10 UTC1h 55m
2026-07-21 SWR9PX ZRH → ALC Jul 21, 11:05 UTCJul 21, 13:10 UTC2h 5m
2026-07-21 SWR96M BCN → BCN Jul 21, 08:25 UTCJul 21, 09:45 UTC1h 20m
2026-07-21 SWR44Y ZRH → BCN Jul 21, 05:35 UTCJul 21, 07:05 UTC1h 30m
2026-07-20 SWR262C - Jul 20, 16:00 UTCJul 20, 18:00 UTC2h 0m
2026-07-20 SWR3WL - Jul 20, 11:45 UTCJul 20, 14:10 UTC2h 25m
2026-07-20 SWR731C HAM → ZRH Jul 20, 09:10 UTCJul 20, 10:20 UTC1h 10m
2026-07-20 SWR92W ZRH → HAM Jul 20, 06:40 UTCJul 20, 07:45 UTC1h 5m
2026-07-20 SWR4VE BCN → ZRH Jul 20, 04:10 UTCJul 20, 05:30 UTC1h 20m
2026-07-19 SWR4KB ZRH → BCN Jul 19, 20:15 UTCJul 19, 21:45 UTC1h 30m
2026-07-19 SWR388G HAM → ZRH Jul 19, 17:35 UTCJul 19, 18:40 UTC1h 5m
2026-07-19 SWR1TX ZRH → HAM Jul 19, 15:20 UTCJul 19, 16:30 UTC1h 10m
2026-07-19 SWR2YB ARN → ZRH Jul 19, 11:20 UTCJul 19, 13:25 UTC2h 5m
2026-07-19 SWR5ZM ZRH → ARN Jul 19, 08:15 UTCJul 19, 10:05 UTC1h 50m
2026-07-19 SWR1PM ARN → ZRH Jul 19, 04:15 UTCJul 19, 06:35 UTC2h 20m
2026-07-18 SWR1KV ZRH → ARN Jul 18, 20:20 UTCJul 18, 22:25 UTC2h 5m
2026-07-18 SWR589X ARN → ZRH Jul 18, 14:20 UTCJul 18, 16:30 UTC2h 10m
2026-07-18 SWR9PX ZRH → ALC Jul 18, 10:50 UTCJul 18, 12:50 UTC2h 0m
2026-07-18 SWR96M BCN → BCN Jul 18, 08:10 UTCJul 18, 09:30 UTC1h 20m
2026-07-18 SWR44Y ZRH → BCN Jul 18, 05:30 UTCJul 18, 06:55 UTC1h 25m
2026-07-17 SWR72L MUC → ZRH Jul 17, 19:55 UTCJul 17, 20:25 UTC30m
2026-07-17 SWR7PE ZRH → MUC Jul 17, 18:15 UTCJul 17, 18:55 UTC40m
2026-07-17 SWR589X ARN → ZRH Jul 17, 14:39 UTCJul 17, 16:55 UTC2h 15m
2026-07-17 SWR9PX ZRH → ARN Jul 17, 11:25 UTCJul 17, 13:25 UTC2h 0m
2026-07-17 SWR5PT HAM → ZRH Jul 17, 07:50 UTCJul 17, 09:04 UTC1h 15m
2026-07-17 SWR433Y ZRH → HAM Jul 17, 05:25 UTCJul 17, 06:29 UTC1h 5m
2026-07-16 SWR2BT ARN → ZRH Jul 16, 18:05 UTCJul 16, 20:15 UTC2h 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 Jul 26, 22:15 UTC.
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.