Apparatus

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sensors Mode-S transponder

4B1698

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IOM · AIRBUS A-321

Hex
4B1698
Octal
22613230
Decimal
4,920,984
Country
CH
Tail
HB-IOM
Type
A321
No current signal · last broadcast 2h ago
Flights observed
418
Distinct callsigns
20
Country
CH
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4B1698.

Country allocation

The ICAO 24-bit address 4B1698 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
SWR4TD - 13 2026-07-09
SWR96M Swiss International Air Lines 12 2026-06-14
SWR87C - 12 2026-07-09
SWR44Y - 12 2026-06-14
SWR4ET - 9 2026-06-30
SWR1LK - 9 2026-06-30
SWR9PX Swiss International Air Lines 7 2026-05-29
SWR9LA - 7 2026-07-12
SWR935L - 7 2026-07-12
SWR92W - 7 2026-07-04
SWR731C - 7 2026-07-04
SWR589X Swiss International Air Lines 7 2026-05-29
SWR915W - 6 2026-07-14
SWR5CB - 6 2026-06-30
SWR5AM - 6 2026-07-14
SWR4TL Swiss International Air Lines 6 2026-06-04
SWR4KB - 6 2026-07-03
SWR388G - 6 2026-07-12
SWR2XL - 6 2026-07-14
SWR2CL Swiss International Air Lines 6 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR9LC ZRH → BER Jul 14, 19:30 UTCJul 14, 20:35 UTC1h 5m
2026-07-14 SWR1ZB ATH → ZRH Jul 14, 15:05 UTCJul 14, 17:40 UTC2h 35m
2026-07-14 SWR5AM ZRH → ATH Jul 14, 11:15 UTCJul 14, 13:25 UTC2h 10m
2026-07-14 SWR2XL - Jul 14, 09:10 UTCJul 14, 09:45 UTC35m
2026-07-14 SWR915W ZRH → GVA Jul 14, 06:00 UTCJul 14, 06:30 UTC30m
2026-07-13 SWR5AX - Jul 13, 13:25 UTCJul 13, 15:10 UTC1h 45m
2026-07-13 SWR336L ZRH → VLC Jul 13, 10:20 UTCJul 13, 12:15 UTC1h 55m
2026-07-13 SWR1PM ARN → ZRH Jul 13, 04:40 UTCJul 13, 06:40 UTC2h 0m
2026-07-12 SWR1KV ZRH → ARN Jul 12, 20:10 UTCJul 12, 22:10 UTC2h 0m
2026-07-12 SWR388G HAM → ZRH Jul 12, 17:55 UTCJul 12, 19:01 UTC1h 5m
2026-07-12 SWR1TX ZRH → HAM Jul 12, 15:45 UTCJul 12, 16:50 UTC1h 5m
2026-07-12 SWR935L ATH → ZRH Jul 12, 11:50 UTCJul 12, 14:20 UTC2h 30m
2026-07-12 SWR9LA ZRH → ATH Jul 12, 07:50 UTCJul 12, 10:05 UTC2h 15m
2026-07-11 SWR5PT - Jul 11, 07:40 UTCJul 11, 08:45 UTC1h 5m
2026-07-11 SWR433Y ZRH → HAM Jul 11, 05:10 UTCJul 11, 06:25 UTC1h 15m
2026-07-10 SWR57Z MAD → ZRH Jul 10, 19:25 UTCJul 10, 21:20 UTC1h 55m
2026-07-10 SWR465K ZRH → MAD Jul 10, 16:25 UTCJul 10, 18:10 UTC1h 45m
2026-07-10 SWR5EZ ALC → ZRH Jul 10, 11:25 UTCJul 10, 13:20 UTC1h 55m
2026-07-10 SWR1V ZRH → ALC Jul 10, 08:20 UTCJul 10, 10:20 UTC2h 0m
2026-07-10 SWR1HW ATH → ZRH Jul 10, 04:30 UTCJul 10, 06:55 UTC2h 25m
2026-07-09 SWR7MV ZRH → ATH Jul 9, 19:50 UTCJul 9, 21:50 UTC2h 0m
2026-07-09 SWR9YH LUX → ZRH Jul 9, 17:40 UTCJul 9, 18:20 UTC40m
2026-07-09 SWR3AG ZRH → LUX Jul 9, 15:55 UTCJul 9, 16:30 UTC35m
2026-07-09 SWR4TD BCN → ZRH Jul 9, 13:20 UTCJul 9, 14:50 UTC1h 30m
2026-07-09 SWR87C ZRH → BCN Jul 9, 11:00 UTCJul 9, 12:15 UTC1h 15m
2026-07-09 SWR5PT HAM → ZRH Jul 9, 07:50 UTCJul 9, 09:00 UTC1h 10m
2026-07-09 SWR433Y ZRH → HAM Jul 9, 05:10 UTCJul 9, 06:25 UTC1h 15m
2026-07-08 SWR388G HAM → ZRH Jul 8, 17:30 UTCJul 8, 18:30 UTC1h 0m
2026-07-08 SWR1TX ZRH → HAM Jul 8, 15:10 UTCJul 8, 16:25 UTC1h 15m
2026-07-08 SWR20D OPO → ZRH Jul 8, 11:40 UTCJul 8, 13:50 UTC2h 10m
2026-07-08 SWR8BC ZRH → OPO Jul 8, 08:05 UTCJul 8, 10:15 UTC2h 10m
2026-07-08 SWR3ZC GVA → ZRH Jul 8, 05:30 UTCJul 8, 06:00 UTC30m
2026-07-07 SWR4TH ZRH → GVA Jul 7, 19:25 UTCJul 7, 19:50 UTC25m
2026-07-07 SWR1ZB ATH → ZRH Jul 7, 13:55 UTCJul 7, 16:30 UTC2h 35m
2026-07-07 SWR5AM ZRH → ATH Jul 7, 10:30 UTCJul 7, 12:40 UTC2h 10m
2026-07-07 SWR2XL GVA → ZRH Jul 7, 08:25 UTCJul 7, 08:55 UTC30m
2026-07-07 SWR915W ZRH → GVA Jul 7, 06:05 UTCJul 7, 06:35 UTC30m
2026-07-06 SWR105W HAM → ZRH Jul 6, 19:30 UTCJul 6, 20:30 UTC1h 0m
2026-07-06 SWR9D ZRH → HAM Jul 6, 17:05 UTCJul 6, 18:20 UTC1h 15m
2026-07-06 SWR493Z HAM → ZRH Jul 6, 14:45 UTCJul 6, 15:50 UTC1h 5m
2026-07-06 SWR27G ZRH → HAM Jul 6, 11:55 UTCJul 6, 13:05 UTC1h 10m
2026-07-06 SWR2HC - Jul 6, 08:35 UTCJul 6, 09:55 UTC1h 20m
2026-07-06 SWR98C - Jul 6, 05:20 UTCJul 6, 06:25 UTC1h 5m
2026-07-05 SWR42V - Jul 5, 18:20 UTCJul 5, 19:10 UTC50m
2026-07-05 SWR1DE ZRH → CDG Jul 5, 16:10 UTCJul 5, 17:05 UTC55m
2026-07-05 SWR493Z - Jul 5, 13:25 UTCJul 5, 14:30 UTC1h 5m
2026-07-05 SWR27G ZRH → HAM Jul 5, 11:05 UTCJul 5, 12:15 UTC1h 10m
2026-07-05 SWR7AK NCE → ZRH Jul 5, 07:50 UTCJul 5, 08:50 UTC1h 0m
2026-07-05 SWR42B ZRH → NCE Jul 5, 05:25 UTCJul 5, 06:15 UTC50m
2026-07-04 SWR125A - Jul 4, 18:25 UTCJul 4, 19:50 UTC1h 25m

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

Mode-S 4B1698 frequently asked

What is Mode-S code 4B1698?
4B1698 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IOM.
Where is Mode-S 4B1698 registered?
Mode-S code 4B1698 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1698 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 4B1698, octal 22613230, decimal 4,920,984.
What flights does 4B1698 operate?
Mode-S 4B1698 has broadcast 20 distinct callsigns, including SWR4TD, SWR96M, SWR87C, SWR44Y, SWR4ET.