Apparatus

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sensors Mode-S transponder

4B3902

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-VPI · EMBRAER EMB-505 Phenom 300

Hex
4B3902
Octal
22634402
Decimal
4,929,794
Country
CH
Tail
HB-VPI
Type
E55P
No current signal · last broadcast 8h ago
Flights observed
130
Distinct callsigns
2
Country
CH
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 4B3902.

Country allocation

The ICAO 24-bit address 4B3902 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 2 distinct

Callsign Airline Flights Last seen
SWW264 - 116 2026-07-17
HBVPI - 14 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SWW264 - Jul 17, 16:29 UTCJul 17, 17:05 UTC35m
2026-07-17 SWW264 - Jul 17, 14:10 UTCJul 17, 15:40 UTC1h 30m
2026-07-15 HBVPI DUB → GVA Jul 15, 16:20 UTCJul 15, 18:05 UTC1h 45m
2026-07-15 HBVPI - Jul 15, 06:05 UTCJul 15, 08:10 UTC2h 5m
2026-07-14 SWW264 LIN → GVA Jul 14, 17:30 UTCJul 14, 18:10 UTC40m
2026-07-14 SWW264 LEJ → LIN Jul 14, 15:00 UTCJul 14, 16:15 UTC1h 15m
2026-07-13 SWW264 - Jul 13, 12:35 UTCJul 13, 13:40 UTC1h 5m
2026-07-13 SWW264 - Jul 13, 10:35 UTCJul 13, 11:10 UTC35m
2026-07-12 SWW264 - Jul 12, 12:35 UTCJul 12, 13:10 UTC35m
2026-07-12 SWW264 GVA → FNI Jul 12, 10:15 UTCJul 12, 10:55 UTC40m
2026-07-11 SWW264 CEQ → GVA Jul 11, 16:30 UTCJul 11, 17:25 UTC55m
2026-07-11 SWW264 GVA → CEQ Jul 11, 14:45 UTCJul 11, 15:40 UTC55m
2026-07-11 HBVPI - Jul 11, 07:40 UTCJul 11, 08:20 UTC40m
2026-07-09 SWW264 PRG → NCE Jul 9, 12:10 UTCJul 9, 13:25 UTC1h 15m
2026-07-08 SWW264 - Jul 8, 08:25 UTCJul 8, 10:00 UTC1h 35m
2026-07-07 SWW264 - Jul 7, 15:50 UTCJul 7, 16:55 UTC1h 5m
2026-07-07 SWW264 - Jul 7, 08:45 UTCJul 7, 11:30 UTC2h 45m
2026-07-06 SWW264 - Jul 6, 14:00 UTCJul 6, 15:00 UTC1h 0m
2026-07-06 SWW264 - Jul 6, 11:30 UTCJul 6, 12:20 UTC50m
2026-07-06 SWW264 - Jul 6, 09:25 UTCJul 6, 10:00 UTC35m
2026-07-06 HBVPI - Jul 6, 07:30 UTCJul 6, 08:15 UTC45m
2026-07-05 SWW264 - Jul 5, 16:50 UTCJul 5, 17:40 UTC50m
2026-07-05 SWW264 - Jul 5, 11:45 UTCJul 5, 13:45 UTC2h 0m
2026-07-05 SWW264 - Jul 5, 08:50 UTCJul 5, 10:05 UTC1h 15m
2026-07-03 SWW264 - Jul 3, 13:50 UTCJul 3, 14:45 UTC55m
2026-07-03 SWW264 - Jul 3, 07:15 UTCJul 3, 08:05 UTC50m
2026-07-02 SWW264 - Jul 2, 16:40 UTCJul 2, 17:45 UTC1h 5m
2026-07-02 SWW264 - Jul 2, 05:15 UTCJul 2, 06:20 UTC1h 5m
2026-07-01 SWW264 - Jul 1, 08:10 UTCJul 1, 08:45 UTC35m
2026-07-01 SWW264 - Jul 1, 05:50 UTCJul 1, 06:25 UTC35m
2026-06-30 HBVPI - Jun 30, 11:50 UTCJun 30, 13:00 UTC1h 10m
2026-06-30 HBVPI - Jun 30, 09:35 UTCJun 30, 10:25 UTC50m
2026-06-29 SWW264 - Jun 29, 10:00 UTCJun 29, 10:40 UTC40m
2026-06-29 SWW264 - Jun 29, 07:44 UTCJun 29, 08:24 UTC40m
2026-06-28 SWW264 - Jun 28, 14:04 UTCJun 28, 14:45 UTC40m
2026-06-28 SWW264 - Jun 28, 12:19 UTCJun 28, 13:04 UTC45m
2026-06-28 SWW264 - Jun 28, 09:05 UTCJun 28, 10:39 UTC1h 35m
2026-06-27 SWW264 - Jun 27, 09:40 UTCJun 27, 11:35 UTC1h 55m
2026-06-27 SWW264 - Jun 27, 08:25 UTCJun 27, 08:44 UTC20m
2026-06-27 SWW264 - Jun 27, 06:15 UTCJun 27, 06:50 UTC35m
2026-06-26 SWW264 - Jun 26, 13:34 UTCJun 26, 14:19 UTC45m
2026-06-26 SWW264 - Jun 26, 10:20 UTCJun 26, 11:00 UTC40m
2026-06-21 SWW264 LIN → GVA Jun 21, 09:44 UTCJun 21, 10:19 UTC35m
2026-06-20 SWW264 - Jun 20, 15:14 UTCJun 20, 15:54 UTC40m
2026-06-20 SWW264 - Jun 20, 13:44 UTCJun 20, 14:29 UTC45m
2026-06-20 SWW264 - Jun 20, 08:34 UTCJun 20, 09:09 UTC35m
2026-06-20 SWW264 - Jun 20, 07:29 UTCJun 20, 08:05 UTC35m
2026-06-19 SWW264 - Jun 19, 14:09 UTCJun 19, 15:09 UTC1h 0m
2026-06-19 SWW264 - Jun 19, 12:04 UTCJun 19, 13:04 UTC1h 0m
2026-06-18 SWW264 - Jun 18, 13:25 UTCJun 18, 14:15 UTC50m

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

Mode-S 4B3902 frequently asked

What is Mode-S code 4B3902?
4B3902 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-VPI.
Where is Mode-S 4B3902 registered?
Mode-S code 4B3902 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B3902 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B3902, octal 22634402, decimal 4,929,794.
What flights does 4B3902 operate?
Mode-S 4B3902 has broadcast 2 distinct callsigns, including SWW264, HBVPI.