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sensors Mode-S transponder

4B4365

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-ZNP · AEROSPATIALE AS-350 Ecureuil

Hex
4B4365
Octal
22641545
Decimal
4,932,453
Country
CH
Tail
HB-ZNP
Type
AS50
No current signal · last broadcast 4h ago
Flights observed
132
Distinct callsigns
1
Country
CH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B4365.

Country allocation

The ICAO 24-bit address 4B4365 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 1 distinct

Callsign Airline Flights Last seen
HBZNP - 132 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HBZNP - Jul 14, 12:30 UTCJul 14, 12:40 UTC10m
2026-07-14 HBZNP - Jul 14, 11:30 UTCJul 14, 11:50 UTC20m
2026-07-14 HBZNP - Jul 14, 09:20 UTCJul 14, 09:55 UTC35m
2026-07-14 HBZNP - Jul 14, 07:00 UTCJul 14, 09:15 UTC2h 15m
2026-07-13 HBZNP - Jul 13, 12:05 UTCJul 13, 12:30 UTC25m
2026-07-13 HBZNP - Jul 13, 05:50 UTCJul 13, 06:45 UTC55m
2026-07-11 HBZNP - Jul 11, 17:20 UTCJul 11, 18:25 UTC1h 5m
2026-07-11 HBZNP - Jul 11, 11:10 UTCJul 11, 11:45 UTC35m
2026-07-11 HBZNP - Jul 11, 07:30 UTCJul 11, 09:30 UTC2h 0m
2026-07-10 HBZNP - Jul 10, 11:15 UTCJul 10, 11:30 UTC15m
2026-07-10 HBZNP - Jul 10, 09:00 UTCJul 10, 09:20 UTC20m
2026-07-10 HBZNP BXO → BXO Jul 10, 07:45 UTCJul 10, 08:25 UTC40m
2026-07-10 HBZNP - Jul 10, 05:55 UTCJul 10, 06:55 UTC1h 0m
2026-07-09 HBZNP - Jul 9, 12:10 UTCJul 9, 14:10 UTC2h 0m
2026-07-09 HBZNP - Jul 9, 06:55 UTCJul 9, 10:05 UTC3h 10m
2026-07-08 HBZNP - Jul 8, 15:10 UTCJul 8, 15:30 UTC20m
2026-07-08 HBZNP - Jul 8, 14:15 UTCJul 8, 14:35 UTC20m
2026-07-08 HBZNP - Jul 8, 12:30 UTCJul 8, 12:50 UTC20m
2026-07-08 HBZNP - Jul 8, 11:35 UTCJul 8, 12:25 UTC50m
2026-07-08 HBZNP - Jul 8, 08:20 UTCJul 8, 10:05 UTC1h 45m
2026-07-08 HBZNP - Jul 8, 06:35 UTCJul 8, 07:10 UTC35m
2026-07-07 HBZNP - Jul 7, 12:05 UTCJul 7, 14:25 UTC2h 20m
2026-07-07 HBZNP - Jul 7, 09:00 UTCJul 7, 09:20 UTC20m
2026-07-07 HBZNP - Jul 7, 06:10 UTCJul 7, 07:55 UTC1h 45m
2026-07-07 HBZNP - Jul 7, 05:55 UTCJul 7, 06:00 UTC5m
2026-07-06 HBZNP - Jul 6, 12:05 UTCJul 6, 12:25 UTC20m
2026-07-06 HBZNP - Jul 6, 11:20 UTCJul 6, 11:30 UTC10m
2026-07-06 HBZNP - Jul 6, 09:05 UTCJul 6, 09:20 UTC15m
2026-07-06 HBZNP - Jul 6, 05:35 UTCJul 6, 07:30 UTC1h 55m
2026-07-04 HBZNP - Jul 4, 13:20 UTCJul 4, 13:40 UTC20m
2026-07-04 HBZNP - Jul 4, 12:40 UTCJul 4, 12:50 UTC10m
2026-07-04 HBZNP - Jul 4, 11:15 UTCJul 4, 11:30 UTC15m
2026-07-04 HBZNP - Jul 4, 09:00 UTCJul 4, 09:10 UTC10m
2026-06-29 HBZNP - Jun 29, 07:55 UTCJun 29, 08:35 UTC40m
2026-06-25 HBZNP - Jun 25, 13:05 UTCJun 25, 14:20 UTC1h 15m
2026-06-25 HBZNP - Jun 25, 12:15 UTCJun 25, 12:35 UTC20m
2026-06-25 HBZNP - Jun 25, 09:29 UTCJun 25, 09:59 UTC30m
2026-06-25 HBZNP - Jun 25, 06:00 UTCJun 25, 07:54 UTC1h 55m
2026-06-24 HBZNP - Jun 24, 14:24 UTCJun 24, 14:34 UTC10m
2026-06-17 HBZNP - Jun 17, 15:35 UTCJun 17, 16:10 UTC35m
2026-06-17 HBZNP - Jun 17, 13:10 UTCJun 17, 14:05 UTC55m
2026-06-17 HBZNP - Jun 17, 11:40 UTCJun 17, 11:50 UTC10m
2026-06-17 HBZNP - Jun 17, 06:05 UTCJun 17, 07:55 UTC1h 50m
2026-06-16 HBZNP - Jun 16, 13:19 UTCJun 16, 13:44 UTC25m
2026-06-16 HBZNP BXO → BXO Jun 16, 06:04 UTCJun 16, 08:05 UTC2h 0m
2026-06-15 HBZNP - Jun 15, 13:50 UTCJun 15, 14:50 UTC1h 0m
2026-06-15 HBZNP BXO → BXO Jun 15, 06:15 UTCJun 15, 08:35 UTC2h 20m
2026-06-13 HBZNP - Jun 13, 11:05 UTCJun 13, 15:15 UTC4h 10m
2026-06-13 HBZNP - Jun 13, 08:45 UTCJun 13, 10:05 UTC1h 20m
2026-06-12 HBZNP - Jun 12, 09:45 UTCJun 12, 09:55 UTC10m

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

Mode-S 4B4365 frequently asked

What is Mode-S code 4B4365?
4B4365 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-ZNP.
Where is Mode-S 4B4365 registered?
Mode-S code 4B4365 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B4365 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B4365, octal 22641545, decimal 4,932,453.
What flights does 4B4365 operate?
Mode-S 4B4365 has broadcast 1 distinct callsign, including HBZNP.