sensors Mode-S transponder

4B15CA

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IGO · DASSAULT Falcon 2000

Hex
4B15CA
Octal
22612712
Decimal
4,920,778
Country
CH
Tail
HB-IGO
Type
F2TH
No current signal · last broadcast 12h ago
Flights observed
54
Distinct callsigns
2
Country
CH
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4B15CA.

Country allocation

The ICAO 24-bit address 4B15CA 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
CAZ401 - 52 2026-06-17
CAZ402 - 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-17 CAZ401 - Jun 17, 09:45 UTCJun 17, 11:00 UTC1h 15m
2026-06-17 CAZ401 - Jun 17, 07:25 UTCJun 17, 08:00 UTC35m
2026-06-12 CAZ401 VIP → ZRH Jun 12, 12:45 UTCJun 12, 13:15 UTC30m
2026-06-12 CAZ401 - Jun 12, 11:05 UTCJun 12, 12:10 UTC1h 5m
2026-06-12 CAZ401 NCE → STN Jun 12, 08:15 UTCJun 12, 10:05 UTC1h 50m
2026-06-11 CAZ401 - Jun 11, 17:25 UTCJun 11, 18:00 UTC35m
2026-06-11 CAZ401 - Jun 11, 14:45 UTCJun 11, 15:20 UTC35m
2026-06-07 CAZ401 - Jun 7, 12:15 UTCJun 7, 13:20 UTC1h 5m
2026-06-06 CAZ401 - Jun 6, 16:10 UTCJun 6, 16:39 UTC30m
2026-06-06 CAZ401 - Jun 6, 14:59 UTCJun 6, 15:39 UTC40m
2026-06-06 CAZ401 - Jun 6, 09:55 UTCJun 6, 10:39 UTC45m
2026-06-06 CAZ401 ZRH → PSA Jun 6, 08:30 UTCJun 6, 09:15 UTC45m
2026-06-05 CAZ401 - Jun 5, 14:25 UTCJun 5, 15:55 UTC1h 30m
2026-06-05 CAZ401 - Jun 5, 09:50 UTCJun 5, 11:25 UTC1h 35m
2026-06-03 CAZ401 - Jun 3, 16:15 UTCJun 3, 17:25 UTC1h 10m
2026-06-03 CAZ401 - Jun 3, 14:00 UTCJun 3, 14:30 UTC30m
2026-06-03 CAZ401 - Jun 3, 08:35 UTCJun 3, 09:25 UTC50m
2026-06-02 CAZ401 - Jun 2, 07:00 UTCJun 2, 07:45 UTC45m
2026-06-02 CAZ401 ZRH → LJU Jun 2, 04:45 UTCJun 2, 05:30 UTC45m
2026-06-01 CAZ401 - Jun 1, 09:30 UTCJun 1, 10:45 UTC1h 15m
2026-06-01 CAZ401 ZRH → CIA Jun 1, 06:35 UTCJun 1, 07:35 UTC1h 0m
2026-05-31 CAZ401 - May 31, 15:05 UTCMay 31, 16:25 UTC1h 20m
2026-05-31 CAZ401 - May 31, 11:00 UTCMay 31, 12:40 UTC1h 40m
2026-05-30 CAZ401 - May 30, 12:20 UTCMay 30, 14:05 UTC1h 45m
2026-05-30 CAZ401 - May 30, 08:25 UTCMay 30, 09:10 UTC45m
2026-05-30 CAZ401 ZRH → SOU May 30, 06:15 UTCMay 30, 07:35 UTC1h 20m
2026-05-29 CAZ401 FAB → ZRH May 29, 10:10 UTCMay 29, 11:20 UTC1h 10m
2026-05-29 CAZ401 ZRH → FAB May 29, 08:10 UTCMay 29, 09:30 UTC1h 20m
2026-05-27 CAZ401 - May 27, 10:15 UTCMay 27, 12:50 UTC2h 35m
2026-05-27 CAZ401 - May 27, 04:24 UTCMay 27, 06:49 UTC2h 25m
2026-05-24 CAZ401 - May 24, 12:25 UTCMay 24, 15:25 UTC3h 0m
2026-05-20 CAZ401 - May 20, 15:35 UTCMay 20, 17:45 UTC2h 10m
2026-05-20 CAZ401 ZRH → GVA May 20, 14:10 UTCMay 20, 14:40 UTC30m
2026-05-17 CAZ401 - May 17, 15:15 UTCMay 17, 16:25 UTC1h 10m
2026-05-17 CAZ401 ZRH → FAB May 17, 13:05 UTCMay 17, 14:25 UTC1h 20m
2026-05-15 CAZ401 - May 15, 09:05 UTCMay 15, 11:05 UTC2h 0m
2026-05-14 CAZ401 - May 14, 18:40 UTCMay 14, 20:40 UTC2h 0m
2026-05-14 CAZ401 - May 14, 14:55 UTCMay 14, 16:20 UTC1h 25m
2026-05-14 CAZ401 ZRH → FAB May 14, 12:10 UTCMay 14, 13:30 UTC1h 20m
2026-05-12 CAZ402 LEJ → ZRH May 12, 16:55 UTCMay 12, 17:50 UTC55m
2026-05-12 CAZ402 ZRH → LEJ May 12, 15:05 UTCMay 12, 16:00 UTC55m
2026-05-12 CAZ401 - May 12, 11:50 UTCMay 12, 12:35 UTC45m
2026-05-12 CAZ401 ZRH → GOA May 12, 09:40 UTCMay 12, 10:15 UTC35m
2026-05-09 CAZ401 - May 9, 09:05 UTCMay 9, 11:25 UTC2h 20m
2026-05-08 CAZ401 - May 8, 11:14 UTCMay 8, 13:35 UTC2h 20m
2026-05-07 CAZ401 ZRH → BER May 7, 15:05 UTCMay 7, 16:10 UTC1h 5m
2026-05-07 CAZ401 - May 7, 08:05 UTCMay 7, 08:45 UTC40m
2026-05-06 CAZ401 VIE → MUC May 6, 13:55 UTCMay 6, 14:40 UTC45m
2026-05-05 CAZ401 ZRH → VIE May 5, 18:35 UTCMay 5, 19:35 UTC1h 0m
2026-05-03 CAZ401 - May 3, 16:20 UTCMay 3, 18:00 UTC1h 40m

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

Mode-S 4B15CA frequently asked

What is Mode-S code 4B15CA?
4B15CA is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IGO.
Where is Mode-S 4B15CA registered?
Mode-S code 4B15CA is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B15CA broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B15CA, octal 22612712, decimal 4,920,778.
What flights does 4B15CA operate?
Mode-S 4B15CA has broadcast 2 distinct callsigns, including CAZ401, CAZ402.