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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 Jul 25, 13:40 UTC
Flights observed
157
Distinct callsigns
1
Country
CH
Last broadcast
Jul 25, 13:40 UTC

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 - 157 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 HBZNP - Jul 25, 11:05 UTCJul 25, 13:40 UTC2h 35m
2026-07-25 HBZNP - Jul 25, 08:45 UTCJul 25, 09:35 UTC50m
2026-07-25 HBZNP - Jul 25, 07:20 UTCJul 25, 07:40 UTC20m
2026-07-25 HBZNP - Jul 25, 05:55 UTCJul 25, 06:20 UTC25m
2026-07-24 HBZNP - Jul 24, 08:55 UTCJul 24, 11:15 UTC2h 20m
2026-07-24 HBZNP - Jul 24, 04:40 UTCJul 24, 05:40 UTC1h 0m
2026-07-23 HBZNP - Jul 23, 11:55 UTCJul 23, 14:35 UTC2h 40m
2026-07-23 HBZNP - Jul 23, 07:10 UTCJul 23, 07:25 UTC15m
2026-07-23 HBZNP - Jul 23, 05:45 UTCJul 23, 06:15 UTC30m
2026-07-22 HBZNP - Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-21 HBZNP - Jul 21, 13:35 UTCJul 21, 14:20 UTC45m
2026-07-21 HBZNP - Jul 21, 11:10 UTCJul 21, 12:05 UTC55m
2026-07-21 HBZNP - Jul 21, 06:25 UTCJul 21, 06:45 UTC20m
2026-07-20 HBZNP - Jul 20, 06:50 UTCJul 20, 07:00 UTC10m
2026-07-18 HBZNP - Jul 18, 13:25 UTCJul 18, 14:05 UTC40m
2026-07-18 HBZNP - Jul 18, 08:05 UTCJul 18, 08:50 UTC45m
2026-07-18 HBZNP - Jul 18, 06:05 UTCJul 18, 06:25 UTC20m
2026-07-17 HBZNP - Jul 17, 07:00 UTCJul 17, 07:55 UTC55m
2026-07-17 HBZNP - Jul 17, 05:30 UTCJul 17, 06:25 UTC55m
2026-07-16 HBZNP - Jul 16, 13:45 UTCJul 16, 15:45 UTC2h 0m
2026-07-16 HBZNP - Jul 16, 09:30 UTCJul 16, 10:25 UTC55m
2026-07-16 HBZNP - Jul 16, 07:30 UTCJul 16, 07:50 UTC20m
2026-07-16 HBZNP - Jul 16, 05:55 UTCJul 16, 06:30 UTC35m
2026-07-15 HBZNP - Jul 15, 08:15 UTCJul 15, 08:50 UTC35m
2026-07-15 HBZNP - Jul 15, 05:55 UTCJul 15, 07:00 UTC1h 5m
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

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 Jul 25, 13:40 UTC.
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.