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sensors Mode-S transponder

3E1682

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3E1682
Octal
17413202
Decimal
4,068,994
Country
DE
Tail
D-HZSK
Type
EC35
No current signal · last broadcast 19d ago
Flights observed
277
Distinct callsigns
5
Country
DE
Last broadcast
19d ago

Last known position

Most recent position reported by Mode-S 3E1682.

Country allocation

The ICAO 24-bit address 3E1682 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 5 distinct

Callsign Airline Flights Last seen
CHX29 - 166 2026-05-21
CHX35 - 108 2026-06-24
BPO846 - 1 2026-05-22
BPO520 - 1 2026-05-26
BPO518 - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-25 BPO518 - Jun 25, 07:59 UTCJun 25, 08:20 UTC20m
2026-06-24 CHX35 - Jun 24, 18:09 UTCJun 24, 18:39 UTC30m
2026-06-24 CHX35 - Jun 24, 16:29 UTCJun 24, 16:34 UTC5m
2026-06-24 CHX35 - Jun 24, 15:05 UTCJun 24, 15:14 UTC10m
2026-06-24 CHX35 - Jun 24, 14:09 UTCJun 24, 14:24 UTC15m
2026-06-24 CHX35 - Jun 24, 11:29 UTCJun 24, 12:34 UTC1h 5m
2026-06-23 CHX35 - Jun 23, 17:15 UTCJun 23, 17:25 UTC10m
2026-06-23 CHX35 - Jun 23, 15:15 UTCJun 23, 15:24 UTC10m
2026-06-23 CHX35 - Jun 23, 09:45 UTCJun 23, 09:54 UTC10m
2026-06-23 CHX35 - Jun 23, 08:25 UTCJun 23, 09:14 UTC50m
2026-06-23 CHX35 - Jun 23, 07:40 UTCJun 23, 07:49 UTC10m
2026-06-23 CHX35 - Jun 23, 06:39 UTCJun 23, 06:55 UTC15m
2026-06-22 CHX35 - Jun 22, 14:29 UTCJun 22, 14:40 UTC10m
2026-06-22 CHX35 - Jun 22, 12:30 UTCJun 22, 12:40 UTC10m
2026-06-22 CHX35 - Jun 22, 11:35 UTCJun 22, 11:54 UTC20m
2026-06-22 CHX35 - Jun 22, 10:25 UTCJun 22, 10:34 UTC10m
2026-06-21 CHX35 - Jun 21, 18:35 UTCJun 21, 18:50 UTC15m
2026-06-21 CHX35 - Jun 21, 15:59 UTCJun 21, 16:34 UTC35m
2026-06-21 CHX35 - Jun 21, 14:34 UTCJun 21, 14:44 UTC10m
2026-06-21 CHX35 - Jun 21, 13:15 UTCJun 21, 13:34 UTC20m
2026-06-21 CHX35 - Jun 21, 11:05 UTCJun 21, 11:15 UTC10m
2026-06-21 CHX35 - Jun 21, 09:59 UTCJun 21, 10:14 UTC15m
2026-06-20 CHX35 - Jun 20, 15:09 UTCJun 20, 16:44 UTC1h 35m
2026-06-20 CHX35 - Jun 20, 12:30 UTCJun 20, 12:54 UTC25m
2026-06-20 CHX35 - Jun 20, 10:20 UTCJun 20, 10:29 UTC10m
2026-06-19 CHX35 - Jun 19, 17:24 UTCJun 19, 19:29 UTC2h 5m
2026-06-19 CHX35 - Jun 19, 15:14 UTCJun 19, 16:09 UTC55m
2026-06-19 CHX35 - Jun 19, 12:34 UTCJun 19, 12:54 UTC20m
2026-06-19 CHX35 - Jun 19, 07:09 UTCJun 19, 07:25 UTC15m
2026-06-18 CHX35 - Jun 18, 18:25 UTCJun 18, 18:35 UTC10m
2026-06-18 CHX35 - Jun 18, 17:05 UTCJun 18, 17:55 UTC50m
2026-06-18 CHX35 - Jun 18, 13:20 UTCJun 18, 13:50 UTC30m
2026-06-18 CHX35 - Jun 18, 12:40 UTCJun 18, 12:55 UTC15m
2026-06-18 CHX35 - Jun 18, 10:15 UTCJun 18, 10:25 UTC10m
2026-06-18 CHX35 - Jun 18, 09:00 UTCJun 18, 09:20 UTC20m
2026-06-18 CHX35 - Jun 18, 07:40 UTCJun 18, 08:20 UTC40m
2026-06-17 CHX35 - Jun 17, 15:25 UTCJun 17, 15:46 UTC20m
2026-06-17 CHX35 - Jun 17, 12:30 UTCJun 17, 13:10 UTC40m
2026-06-17 CHX35 - Jun 17, 11:40 UTCJun 17, 11:55 UTC15m
2026-06-17 CHX35 - Jun 17, 09:00 UTCJun 17, 10:10 UTC1h 10m
2026-06-15 CHX35 - Jun 15, 17:54 UTCJun 15, 18:45 UTC50m
2026-06-15 CHX35 - Jun 15, 14:45 UTCJun 15, 14:55 UTC10m
2026-06-14 CHX35 - Jun 14, 14:25 UTCJun 14, 14:35 UTC10m
2026-06-14 CHX35 - Jun 14, 12:50 UTCJun 14, 13:55 UTC1h 5m
2026-06-13 CHX35 - Jun 13, 17:10 UTCJun 13, 17:20 UTC10m
2026-06-13 CHX35 - Jun 13, 15:55 UTCJun 13, 16:35 UTC40m
2026-06-13 CHX35 - Jun 13, 13:50 UTCJun 13, 14:25 UTC35m
2026-06-13 CHX35 - Jun 13, 08:25 UTCJun 13, 09:25 UTC1h 0m
2026-06-12 CHX35 - Jun 12, 16:10 UTCJun 12, 16:55 UTC45m
2026-06-12 CHX35 - Jun 12, 15:20 UTCJun 12, 15:30 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-HZSK page for operator, model, and routing details .

Mode-S 3E1682 frequently asked

What is Mode-S code 3E1682?
3E1682 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HZSK.
Where is Mode-S 3E1682 registered?
Mode-S code 3E1682 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E1682 broadcasting right now?
No active broadcast right now. Last signal was 19d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E1682, octal 17413202, decimal 4,068,994.
What flights does 3E1682 operate?
Mode-S 3E1682 has broadcast 5 distinct callsigns, including CHX29, CHX35, BPO846, BPO520, BPO518.