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sensors Mode-S transponder

3E017A

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-HRTI · AIRBUS HELICOPTERS EC-135/635

Hex
3E017A
Octal
17400572
Decimal
4,063,610
Country
DE
Tail
D-HRTI
Type
EC35
No current signal · last broadcast Jul 21, 18:00 UTC
Flights observed
171
Distinct callsigns
4
Country
DE
Last broadcast
Jul 21, 18:00 UTC

Last known position

Most recent position reported by Mode-S 3E017A.

Country allocation

The ICAO 24-bit address 3E017A 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 4 distinct

Callsign Airline Flights Last seen
CHX36 - 128 2026-06-05
DHRTI - 20 2026-07-09
CHX44 - 13 2026-07-21
CHX31 - 10 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 CHX44 - Jul 21, 17:50 UTCJul 21, 18:00 UTC10m
2026-07-21 CHX44 - Jul 21, 17:00 UTCJul 21, 17:10 UTC10m
2026-07-21 CHX44 - Jul 21, 13:35 UTCJul 21, 14:05 UTC30m
2026-07-21 CHX44 - Jul 21, 08:20 UTCJul 21, 08:35 UTC15m
2026-07-20 CHX44 - Jul 20, 14:25 UTCJul 20, 14:35 UTC10m
2026-07-19 CHX44 - Jul 19, 09:35 UTCJul 19, 10:25 UTC50m
2026-07-19 CHX44 - Jul 19, 07:55 UTCJul 19, 08:30 UTC35m
2026-07-18 CHX44 - Jul 18, 16:20 UTCJul 18, 16:45 UTC25m
2026-07-18 CHX44 - Jul 18, 12:00 UTCJul 18, 12:15 UTC15m
2026-07-18 CHX44 - Jul 18, 11:00 UTCJul 18, 11:15 UTC15m
2026-07-17 CHX44 - Jul 17, 16:55 UTCJul 17, 17:05 UTC10m
2026-07-12 CHX44 - Jul 12, 11:35 UTCJul 12, 12:35 UTC1h 0m
2026-07-11 CHX44 - Jul 11, 09:00 UTCJul 11, 09:10 UTC10m
2026-07-09 DHRTI - Jul 9, 18:10 UTCJul 9, 18:35 UTC25m
2026-07-08 DHRTI - Jul 8, 05:50 UTCJul 8, 06:25 UTC35m
2026-07-07 DHRTI - Jul 7, 18:20 UTCJul 7, 19:00 UTC40m
2026-07-07 DHRTI - Jul 7, 13:15 UTCJul 7, 14:00 UTC45m
2026-07-06 DHRTI - Jul 6, 19:05 UTCJul 6, 19:15 UTC10m
2026-07-06 DHRTI - Jul 6, 15:40 UTCJul 6, 15:55 UTC15m
2026-07-06 DHRTI - Jul 6, 11:05 UTCJul 6, 11:15 UTC10m
2026-07-06 DHRTI - Jul 6, 10:10 UTCJul 6, 10:20 UTC10m
2026-07-05 DHRTI - Jul 5, 12:25 UTCJul 5, 13:05 UTC40m
2026-07-04 DHRTI - Jul 4, 16:10 UTCJul 4, 16:20 UTC10m
2026-07-03 DHRTI - Jul 3, 19:05 UTCJul 3, 19:15 UTC10m
2026-07-03 DHRTI - Jul 3, 17:55 UTCJul 3, 18:30 UTC35m
2026-07-03 DHRTI - Jul 3, 13:45 UTCJul 3, 14:15 UTC30m
2026-07-02 DHRTI - Jul 2, 13:30 UTCJul 2, 14:25 UTC55m
2026-07-01 DHRTI - Jul 1, 14:35 UTCJul 1, 14:45 UTC10m
2026-06-30 DHRTI - Jun 30, 17:10 UTCJun 30, 17:20 UTC10m
2026-06-30 DHRTI - Jun 30, 13:10 UTCJun 30, 13:45 UTC35m
2026-06-30 DHRTI - Jun 30, 10:20 UTCJun 30, 10:55 UTC35m
2026-06-29 CHX31 - Jun 29, 18:49 UTCJun 29, 19:05 UTC15m
2026-06-29 CHX31 - Jun 29, 17:59 UTCJun 29, 18:10 UTC10m
2026-06-29 CHX31 - Jun 29, 17:14 UTCJun 29, 17:24 UTC10m
2026-06-29 CHX31 - Jun 29, 14:09 UTCJun 29, 15:09 UTC1h 0m
2026-06-29 CHX31 - Jun 29, 13:00 UTCJun 29, 13:39 UTC40m
2026-06-29 CHX31 - Jun 29, 12:00 UTCJun 29, 12:14 UTC15m
2026-06-29 CHX31 - Jun 29, 10:24 UTCJun 29, 11:04 UTC40m
2026-06-29 CHX31 - Jun 29, 08:44 UTCJun 29, 09:44 UTC1h 0m
2026-06-29 CHX31 - Jun 29, 06:54 UTCJun 29, 08:09 UTC1h 15m
2026-06-28 CHX31 - Jun 28, 21:24 UTCJun 28, 22:04 UTC40m
2026-06-09 DHRTI - Jun 9, 10:55 UTCJun 9, 12:10 UTC1h 15m
2026-06-09 DHRTI - Jun 9, 07:25 UTCJun 9, 09:15 UTC1h 50m
2026-06-05 CHX36 - Jun 5, 09:00 UTCJun 5, 09:20 UTC20m
2026-06-04 CHX36 - Jun 4, 15:30 UTCJun 4, 16:20 UTC50m
2026-06-04 CHX36 - Jun 4, 09:10 UTCJun 4, 09:35 UTC25m
2026-05-31 CHX36 - May 31, 17:30 UTCMay 31, 18:00 UTC30m
2026-05-30 CHX36 - May 30, 15:10 UTCMay 30, 15:30 UTC20m
2026-05-30 CHX36 - May 30, 13:40 UTCMay 30, 14:05 UTC25m
2026-05-29 CHX36 - May 29, 12:00 UTCMay 29, 12:10 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 D-HRTI page for operator, model, and routing details .

Mode-S 3E017A frequently asked

What is Mode-S code 3E017A?
3E017A is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HRTI.
Where is Mode-S 3E017A registered?
Mode-S code 3E017A is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E017A broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 18:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E017A, octal 17400572, decimal 4,063,610.
What flights does 3E017A operate?
Mode-S 3E017A has broadcast 4 distinct callsigns, including CHX36, DHRTI, CHX44, CHX31.