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sensors Mode-S transponder

3E1678

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3E1678
Octal
17413170
Decimal
4,068,984
Country
DE
Tail
D-HZSA
Type
EC35
No current signal · last broadcast 1d ago
Flights observed
242
Distinct callsigns
7
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3E1678.

Country allocation

The ICAO 24-bit address 3E1678 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 7 distinct

Callsign Airline Flights Last seen
CHX9 - 232 2026-07-12
BPO107 - 3 2026-07-07
BPO117 - 2 2026-04-30
BPO112 - 2 2026-07-16
BPO132 - 1 2026-05-14
BPO118 - 1 2026-07-10
BPO114 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 BPO112 - Jul 16, 11:50 UTCJul 16, 12:14 UTC25m
2026-07-16 BPO112 - Jul 16, 09:55 UTCJul 16, 10:40 UTC45m
2026-07-12 CHX9 - Jul 12, 15:25 UTCJul 12, 15:35 UTC10m
2026-07-12 CHX9 - Jul 12, 14:05 UTCJul 12, 15:01 UTC55m
2026-07-11 CHX9 - Jul 11, 17:40 UTCJul 11, 18:40 UTC1h 0m
2026-07-11 CHX9 - Jul 11, 13:15 UTCJul 11, 13:25 UTC10m
2026-07-11 CHX9 - Jul 11, 12:35 UTCJul 11, 12:45 UTC10m
2026-07-11 CHX9 - Jul 11, 10:35 UTCJul 11, 10:45 UTC10m
2026-07-11 CHX9 - Jul 11, 09:25 UTCJul 11, 09:35 UTC10m
2026-07-10 CHX9 - Jul 10, 11:20 UTCJul 10, 12:00 UTC40m
2026-07-10 CHX9 - Jul 10, 08:50 UTCJul 10, 09:40 UTC50m
2026-07-10 BPO118 - Jul 10, 05:25 UTCJul 10, 05:50 UTC25m
2026-07-08 BPO114 - Jul 8, 08:50 UTCJul 8, 09:10 UTC20m
2026-07-07 BPO107 - Jul 7, 13:00 UTCJul 7, 13:10 UTC10m
2026-07-07 BPO107 - Jul 7, 08:30 UTCJul 7, 08:55 UTC25m
2026-06-29 BPO107 - Jun 29, 11:25 UTCJun 29, 11:45 UTC20m
2026-06-28 CHX9 - Jun 28, 19:20 UTCJun 28, 19:59 UTC40m
2026-06-27 CHX9 - Jun 27, 18:54 UTCJun 27, 19:05 UTC10m
2026-06-27 CHX9 - Jun 27, 17:09 UTCJun 27, 17:25 UTC15m
2026-06-27 CHX9 - Jun 27, 16:00 UTCJun 27, 16:10 UTC10m
2026-06-27 CHX9 - Jun 27, 11:39 UTCJun 27, 12:09 UTC30m
2026-06-27 CHX9 - Jun 27, 09:50 UTCJun 27, 10:34 UTC45m
2026-06-27 CHX9 - Jun 27, 07:59 UTCJun 27, 08:10 UTC10m
2026-06-26 CHX9 - Jun 26, 19:00 UTCJun 26, 20:04 UTC1h 5m
2026-06-26 CHX9 - Jun 26, 17:40 UTCJun 26, 18:24 UTC45m
2026-06-26 CHX9 - Jun 26, 14:55 UTCJun 26, 15:10 UTC15m
2026-06-26 CHX9 - Jun 26, 11:34 UTCJun 26, 11:49 UTC15m
2026-06-25 CHX9 - Jun 25, 17:05 UTCJun 25, 17:39 UTC35m
2026-06-25 CHX9 - Jun 25, 13:29 UTCJun 25, 13:45 UTC15m
2026-06-25 CHX9 - Jun 25, 12:15 UTCJun 25, 12:40 UTC25m
2026-06-25 CHX9 - Jun 25, 11:50 UTCJun 25, 11:59 UTC10m
2026-06-25 CHX9 - Jun 25, 09:05 UTCJun 25, 09:14 UTC10m
2026-06-25 CHX9 - Jun 25, 08:09 UTCJun 25, 08:30 UTC20m
2026-06-24 CHX9 - Jun 24, 19:34 UTCJun 24, 19:44 UTC10m
2026-06-24 CHX9 - Jun 24, 18:44 UTCJun 24, 18:55 UTC10m
2026-06-24 CHX9 - Jun 24, 15:24 UTCJun 24, 15:35 UTC10m
2026-06-24 CHX9 - Jun 24, 14:34 UTCJun 24, 14:45 UTC10m
2026-06-24 CHX9 - Jun 24, 13:34 UTCJun 24, 13:50 UTC15m
2026-06-23 CHX9 - Jun 23, 17:30 UTCJun 23, 17:39 UTC10m
2026-06-23 CHX9 - Jun 23, 15:40 UTCJun 23, 16:05 UTC25m
2026-06-23 CHX9 - Jun 23, 14:29 UTCJun 23, 14:59 UTC30m
2026-06-22 CHX9 - Jun 22, 18:35 UTCJun 22, 20:49 UTC2h 15m
2026-06-22 CHX9 - Jun 22, 11:09 UTCJun 22, 11:24 UTC15m
2026-06-22 CHX9 - Jun 22, 10:10 UTCJun 22, 10:25 UTC15m
2026-06-22 CHX9 - Jun 22, 06:39 UTCJun 22, 06:45 UTC5m
2026-06-22 CHX9 - Jun 22, 05:34 UTCJun 22, 05:44 UTC10m
2026-06-21 CHX9 - Jun 21, 17:54 UTCJun 21, 18:50 UTC55m
2026-06-21 CHX9 - Jun 21, 16:44 UTCJun 21, 16:59 UTC15m
2026-06-21 CHX9 - Jun 21, 10:49 UTCJun 21, 11:00 UTC10m
2026-06-20 CHX9 - Jun 20, 16:24 UTCJun 20, 16:34 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-HZSA page for operator, model, and routing details .

Mode-S 3E1678 frequently asked

What is Mode-S code 3E1678?
3E1678 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HZSA.
Where is Mode-S 3E1678 registered?
Mode-S code 3E1678 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E1678 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E1678, octal 17413170, decimal 4,068,984.
What flights does 3E1678 operate?
Mode-S 3E1678 has broadcast 7 distinct callsigns, including CHX9, BPO107, BPO117, BPO112, BPO132.