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sensors Mode-S transponder

3E120E

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-HYAO · AIRBUS HELICOPTERS EC-145

Hex
3E120E
Octal
17411016
Decimal
4,067,854
Country
DE
Tail
D-HYAO
Type
EC45
No current signal · last broadcast Jul 26, 17:45 UTC
Flights observed
294
Distinct callsigns
1
Country
DE
Last broadcast
Jul 26, 17:45 UTC

Last known position

Most recent position reported by Mode-S 3E120E.

Country allocation

The ICAO 24-bit address 3E120E falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany 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
CHX50 - 294 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CHX50 - Jul 26, 17:35 UTCJul 26, 17:45 UTC10m
2026-07-25 CHX50 - Jul 25, 09:20 UTCJul 25, 09:45 UTC25m
2026-07-24 CHX50 - Jul 24, 18:35 UTCJul 24, 19:05 UTC30m
2026-07-24 CHX50 - Jul 24, 13:45 UTCJul 24, 15:35 UTC1h 50m
2026-07-24 CHX50 - Jul 24, 11:05 UTCJul 24, 11:15 UTC10m
2026-07-24 CHX50 - Jul 24, 10:10 UTCJul 24, 10:25 UTC15m
2026-07-24 CHX50 - Jul 24, 07:55 UTCJul 24, 09:35 UTC1h 40m
2026-07-23 CHX50 - Jul 23, 11:05 UTCJul 23, 11:45 UTC40m
2026-07-22 CHX50 - Jul 22, 16:40 UTCJul 22, 17:15 UTC35m
2026-07-22 CHX50 - Jul 22, 11:10 UTCJul 22, 12:15 UTC1h 5m
2026-07-20 CHX50 - Jul 20, 08:20 UTCJul 20, 08:50 UTC30m
2026-07-19 CHX50 - Jul 19, 16:50 UTCJul 19, 17:10 UTC20m
2026-07-19 CHX50 - Jul 19, 15:30 UTCJul 19, 15:40 UTC10m
2026-07-19 CHX50 - Jul 19, 14:35 UTCJul 19, 14:50 UTC15m
2026-07-18 CHX50 - Jul 18, 13:35 UTCJul 18, 13:45 UTC10m
2026-07-18 CHX50 - Jul 18, 08:35 UTCJul 18, 08:55 UTC20m
2026-07-17 CHX50 - Jul 17, 07:50 UTCJul 17, 08:00 UTC10m
2026-07-17 CHX50 - Jul 17, 06:45 UTCJul 17, 06:54 UTC10m
2026-07-16 CHX50 - Jul 16, 17:05 UTCJul 16, 17:45 UTC40m
2026-07-16 CHX50 - Jul 16, 10:04 UTCJul 16, 10:55 UTC50m
2026-07-15 CHX50 - Jul 15, 16:35 UTCJul 15, 17:05 UTC30m
2026-07-15 CHX50 - Jul 15, 09:20 UTCJul 15, 11:40 UTC2h 20m
2026-07-15 CHX50 - Jul 15, 08:00 UTCJul 15, 08:30 UTC30m
2026-07-13 CHX50 - Jul 13, 11:45 UTCJul 13, 11:55 UTC10m
2026-07-13 CHX50 - Jul 13, 11:05 UTCJul 13, 11:15 UTC10m
2026-07-12 CHX50 - Jul 12, 19:20 UTCJul 12, 19:30 UTC10m
2026-07-12 CHX50 - Jul 12, 18:20 UTCJul 12, 19:05 UTC45m
2026-07-10 CHX50 - Jul 10, 13:55 UTCJul 10, 14:05 UTC10m
2026-07-10 CHX50 - Jul 10, 12:15 UTCJul 10, 13:15 UTC1h 0m
2026-07-09 CHX50 - Jul 9, 18:05 UTCJul 9, 18:45 UTC40m
2026-07-09 CHX50 - Jul 9, 15:25 UTCJul 9, 16:00 UTC35m
2026-07-09 CHX50 - Jul 9, 09:35 UTCJul 9, 09:45 UTC10m
2026-07-08 CHX50 - Jul 8, 11:05 UTCJul 8, 11:15 UTC10m
2026-07-08 CHX50 - Jul 8, 10:20 UTCJul 8, 10:30 UTC10m
2026-07-08 CHX50 - Jul 8, 09:20 UTCJul 8, 09:30 UTC10m
2026-07-07 CHX50 - Jul 7, 10:05 UTCJul 7, 10:20 UTC15m
2026-07-06 CHX50 - Jul 6, 09:55 UTCJul 6, 10:40 UTC45m
2026-07-05 CHX50 - Jul 5, 11:50 UTCJul 5, 12:10 UTC20m
2026-07-03 CHX50 - Jul 3, 19:30 UTCJul 3, 19:40 UTC10m
2026-07-03 CHX50 - Jul 3, 18:40 UTCJul 3, 18:50 UTC10m
2026-07-03 CHX50 - Jul 3, 10:30 UTCJul 3, 11:50 UTC1h 20m
2026-07-03 CHX50 - Jul 3, 08:40 UTCJul 3, 09:10 UTC30m
2026-07-02 CHX50 - Jul 2, 15:25 UTCJul 2, 15:45 UTC20m
2026-07-02 CHX50 - Jul 2, 12:15 UTCJul 2, 14:55 UTC2h 40m
2026-07-02 CHX50 - Jul 2, 09:55 UTCJul 2, 11:45 UTC1h 50m
2026-07-02 CHX50 - Jul 2, 08:05 UTCJul 2, 08:15 UTC10m
2026-07-02 CHX50 - Jul 2, 06:15 UTCJul 2, 06:25 UTC10m
2026-07-01 CHX50 - Jul 1, 18:40 UTCJul 1, 20:00 UTC1h 20m
2026-07-01 CHX50 - Jul 1, 18:00 UTCJul 1, 18:10 UTC10m
2026-07-01 CHX50 - Jul 1, 14:40 UTCJul 1, 14:55 UTC15m

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 D-HYAO page for operator, model, and routing details .

Mode-S 3E120E frequently asked

What is Mode-S code 3E120E?
3E120E is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HYAO.
Where is Mode-S 3E120E registered?
Mode-S code 3E120E is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E120E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E120E, octal 17411016, decimal 4,067,854.
What flights does 3E120E operate?
Mode-S 3E120E has broadcast 1 distinct callsign, including CHX50.