Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3E1679

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3E1679
Octal
17413171
Decimal
4,068,985
Country
DE
Tail
D-HZSB
Type
EC35
No current signal · last broadcast 6h ago
Flights observed
139
Distinct callsigns
4
Country
DE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3E1679.

Country allocation

The ICAO 24-bit address 3E1679 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
CHX29 - 117 2026-06-18
DHZSB - 14 2026-05-07
BPO820 - 6 2026-06-06
BPO843 - 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-18 CHX29 - Jun 18, 09:30 UTCJun 18, 10:05 UTC35m
2026-06-18 CHX29 - Jun 18, 07:50 UTCJun 18, 08:30 UTC40m
2026-06-17 CHX29 - Jun 17, 18:05 UTCJun 17, 18:50 UTC45m
2026-06-17 CHX29 - Jun 17, 17:20 UTCJun 17, 17:30 UTC10m
2026-06-17 CHX29 - Jun 17, 13:25 UTCJun 17, 15:35 UTC2h 10m
2026-06-17 CHX29 - Jun 17, 08:45 UTCJun 17, 09:00 UTC15m
2026-06-16 CHX29 - Jun 16, 18:25 UTCJun 16, 19:10 UTC45m
2026-06-16 CHX29 - Jun 16, 17:05 UTCJun 16, 17:45 UTC40m
2026-06-16 CHX29 - Jun 16, 16:10 UTCJun 16, 16:20 UTC10m
2026-06-16 CHX29 - Jun 16, 15:45 UTCJun 16, 15:55 UTC10m
2026-06-16 CHX29 - Jun 16, 11:05 UTCJun 16, 11:40 UTC35m
2026-06-16 CHX29 - Jun 16, 09:50 UTCJun 16, 10:30 UTC40m
2026-06-16 CHX29 - Jun 16, 08:30 UTCJun 16, 08:49 UTC20m
2026-06-16 CHX29 - Jun 16, 06:20 UTCJun 16, 06:35 UTC15m
2026-06-15 CHX29 - Jun 15, 19:30 UTCJun 15, 19:55 UTC25m
2026-06-15 CHX29 - Jun 15, 10:40 UTCJun 15, 11:45 UTC1h 5m
2026-06-15 CHX29 - Jun 15, 09:00 UTCJun 15, 09:45 UTC45m
2026-06-14 CHX29 - Jun 14, 15:10 UTCJun 14, 15:45 UTC35m
2026-06-14 CHX29 - Jun 14, 13:35 UTCJun 14, 14:10 UTC35m
2026-06-14 CHX29 - Jun 14, 12:45 UTCJun 14, 12:55 UTC10m
2026-06-14 CHX29 - Jun 14, 11:45 UTCJun 14, 11:55 UTC10m
2026-06-14 CHX29 - Jun 14, 08:10 UTCJun 14, 08:50 UTC40m
2026-06-13 CHX29 - Jun 13, 17:45 UTCJun 13, 18:05 UTC20m
2026-06-13 CHX29 - Jun 13, 15:20 UTCJun 13, 15:30 UTC10m
2026-06-13 CHX29 - Jun 13, 12:05 UTCJun 13, 12:15 UTC10m
2026-06-13 CHX29 - Jun 13, 10:15 UTCJun 13, 10:45 UTC30m
2026-06-13 CHX29 - Jun 13, 07:20 UTCJun 13, 07:30 UTC10m
2026-06-12 CHX29 - Jun 12, 19:25 UTCJun 12, 19:55 UTC30m
2026-06-12 CHX29 - Jun 12, 12:15 UTCJun 12, 12:35 UTC20m
2026-06-11 CHX29 - Jun 11, 17:25 UTCJun 11, 17:40 UTC15m
2026-06-11 CHX29 - Jun 11, 15:30 UTCJun 11, 15:45 UTC15m
2026-06-11 CHX29 - Jun 11, 12:10 UTCJun 11, 12:45 UTC35m
2026-06-11 CHX29 - Jun 11, 09:50 UTCJun 11, 10:00 UTC10m
2026-06-11 CHX29 - Jun 11, 07:30 UTCJun 11, 07:40 UTC10m
2026-06-10 CHX29 - Jun 10, 18:20 UTCJun 10, 19:30 UTC1h 10m
2026-06-10 CHX29 - Jun 10, 13:30 UTCJun 10, 13:40 UTC10m
2026-06-10 CHX29 - Jun 10, 08:50 UTCJun 10, 09:35 UTC45m
2026-06-10 CHX29 - Jun 10, 07:10 UTCJun 10, 07:20 UTC10m
2026-06-09 CHX29 - Jun 9, 18:15 UTCJun 9, 18:35 UTC20m
2026-06-09 CHX29 - Jun 9, 17:05 UTCJun 9, 17:25 UTC20m
2026-06-09 CHX29 - Jun 9, 11:00 UTCJun 9, 11:10 UTC10m
2026-06-09 CHX29 - Jun 9, 09:10 UTCJun 9, 09:45 UTC35m
2026-06-09 CHX29 - Jun 9, 05:25 UTCJun 9, 05:35 UTC10m
2026-06-08 CHX29 - Jun 8, 17:00 UTCJun 8, 18:25 UTC1h 25m
2026-06-08 CHX29 - Jun 8, 14:25 UTCJun 8, 15:00 UTC35m
2026-06-08 CHX29 - Jun 8, 10:10 UTCJun 8, 10:20 UTC10m
2026-06-08 CHX29 - Jun 8, 07:20 UTCJun 8, 07:55 UTC35m
2026-06-07 CHX29 - Jun 7, 19:05 UTCJun 7, 20:05 UTC1h 0m
2026-06-07 CHX29 - Jun 7, 17:55 UTCJun 7, 18:20 UTC25m
2026-06-07 CHX29 - Jun 7, 15:35 UTCJun 7, 16:00 UTC25m

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-HZSB page for operator, model, and routing details .

Mode-S 3E1679 frequently asked

What is Mode-S code 3E1679?
3E1679 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HZSB.
Where is Mode-S 3E1679 registered?
Mode-S code 3E1679 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3E1679 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3E1679, octal 17413171, decimal 4,068,985.
What flights does 3E1679 operate?
Mode-S 3E1679 has broadcast 4 distinct callsigns, including CHX29, DHZSB, BPO820, BPO843.