Apparatus

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sensors Mode-S transponder

3C644A

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIBJ · AIRBUS A-319

Hex
3C644A
Octal
17062112
Decimal
3,957,834
Country
DE
Tail
D-AIBJ
Type
A319
No current signal · last broadcast 1h ago
Flights observed
321
Distinct callsigns
20
Country
DE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 3C644A.

Country allocation

The ICAO 24-bit address 3C644A 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 20 distinct

Callsign Airline Flights Last seen
DLH8KF Lufthansa 5 2026-06-03
DLH5NC Lufthansa 5 2026-05-15
DLH5AL Lufthansa 5 2026-05-19
DLH062 Lufthansa 5 2026-05-19
DLH7C Lufthansa 4 2026-05-08
DLH5LY Lufthansa 4 2026-06-01
DLH3PX Lufthansa 4 2026-06-01
DLH2PP Lufthansa 4 2026-05-08
DLH1KN Lufthansa 4 2026-05-25
DLH055 Lufthansa 4 2026-05-25
DLH9TK Lufthansa 3 2026-05-31
DLH9MF Lufthansa 3 2026-05-10
DLH9MA Lufthansa 3 2026-04-26
DLH8YY Lufthansa 3 2026-05-08
DLH8LJ Lufthansa 3 2026-05-17
DLH8AC Lufthansa 3 2026-05-17
DLH6UT Lufthansa 3 2026-05-29
DLH66M Lufthansa 3 2026-06-01
DLH4RF Lufthansa 3 2026-05-10
DLH4NM Lufthansa 3 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 DLH8KF FRA → FMO Jun 3, 07:00 UTCJun 3, 08:00 UTC1h 0m
2026-06-03 DLH02K MUC → SVQ Jun 3, 04:20 UTCJun 3, 05:40 UTC1h 20m
2026-06-02 DLH64X FRA → MRS Jun 2, 20:40 UTCJun 2, 22:00 UTC1h 20m
2026-06-02 DLH6YJ FRA → BRE Jun 2, 18:30 UTCJun 2, 19:25 UTC55m
2026-06-02 DLH2FF GOT → MUC Jun 2, 16:15 UTCJun 2, 17:25 UTC1h 10m
2026-06-02 DLH3F CDG → FRA Jun 2, 13:15 UTCJun 2, 14:10 UTC55m
2026-06-02 DLH36E FRA → CDG Jun 2, 10:50 UTCJun 2, 11:45 UTC55m
2026-06-02 DLH36N MAD → MUC Jun 2, 08:35 UTCJun 2, 09:25 UTC50m
2026-06-02 DLH37T FRA → SZG Jun 2, 07:05 UTCJun 2, 07:45 UTC40m
2026-06-02 DLH9YA FRA → BEG Jun 2, 04:40 UTCJun 2, 05:50 UTC1h 10m
2026-06-01 DLH5CK FRA → ARN Jun 1, 19:40 UTCJun 1, 20:45 UTC1h 5m
2026-06-01 DLH66M LYS → MUC Jun 1, 17:40 UTCJun 1, 18:20 UTC40m
2026-06-01 DLH05K MRS → MUC Jun 1, 16:20 UTCJun 1, 16:55 UTC35m
2026-06-01 DLH3PX FRA → DUB Jun 1, 13:35 UTCJun 1, 14:30 UTC55m
2026-06-01 DLH5LY MAN → FRA Jun 1, 11:55 UTCJun 1, 12:45 UTC50m
2026-06-01 DLH7F CDG → FRA Jun 1, 09:45 UTCJun 1, 10:35 UTC50m
2026-06-01 DLH33M FRA → CDG Jun 1, 07:40 UTCJun 1, 08:30 UTC50m
2026-06-01 DLH8AE MUC → STR Jun 1, 04:20 UTCJun 1, 05:50 UTC1h 30m
2026-05-31 DLH7LV MUC → OSL May 31, 18:55 UTCMay 31, 20:10 UTC1h 15m
2026-05-31 DLH9TK DUS → FRA May 31, 16:00 UTCMay 31, 16:25 UTC25m
2026-05-31 DLH1PM HAM → FRA May 31, 13:35 UTCMay 31, 14:00 UTC25m
2026-05-31 DLH8F CDG → FRA May 31, 08:30 UTCMay 31, 10:10 UTC1h 40m
2026-05-30 DLH1YM FRA → OTP May 30, 17:50 UTCMay 30, 18:50 UTC1h 0m
2026-05-30 DLH1HT FRA → GLA May 30, 15:50 UTCMay 30, 16:45 UTC55m
2026-05-30 DLH2EE CPH → FRA May 30, 13:40 UTCMay 30, 14:45 UTC1h 5m
2026-05-30 DLH5NW FCO → MUC May 30, 11:35 UTCMay 30, 12:30 UTC55m
2026-05-30 DLH77Y FRA → CDG May 30, 09:00 UTCMay 30, 10:10 UTC1h 10m
2026-05-30 DLH53E FRA → NCE May 30, 06:30 UTCMay 30, 07:50 UTC1h 20m
2026-05-29 DLH1557 SKG → FRA May 29, 18:45 UTCMay 30, 04:55 UTC10h 10m
2026-05-29 DLH147 NUE → FRA May 29, 16:55 UTCMay 29, 17:20 UTC25m
2026-05-29 DLH6YM FRA → OSL May 29, 15:50 UTCMay 29, 16:15 UTC25m
2026-05-29 DLH4YC VCE → FRA May 29, 12:50 UTCMay 29, 14:05 UTC1h 15m
2026-05-29 DLH6UT FRA → LIN May 29, 10:30 UTCMay 29, 11:45 UTC1h 15m
2026-05-29 DLH3A AMS → FRA May 29, 08:10 UTCMay 29, 08:55 UTC45m
2026-05-29 DLH6TR FRA → DRS May 29, 06:10 UTCMay 29, 06:50 UTC40m
2026-05-29 DLH4XV FRA → ARN May 29, 04:25 UTCMay 29, 04:50 UTC25m
2026-05-28 DLH078 FRA → DUS May 28, 19:50 UTCMay 28, 20:30 UTC40m
2026-05-28 DLH52J NCE → FRA May 28, 13:05 UTCMay 28, 14:25 UTC1h 20m
2026-05-28 DLH44T NCE → MUC May 28, 10:45 UTCMay 28, 12:00 UTC1h 15m
2026-05-28 DLH8F CDG → FRA May 28, 07:50 UTCMay 28, 08:35 UTC45m
2026-05-28 DLH06M NCE → FRA May 28, 05:55 UTCMay 28, 06:50 UTC55m
2026-05-27 DLH5J CDG → FRA May 27, 18:05 UTCMay 27, 18:50 UTC45m
2026-05-27 DLH84T TLS → MUC May 27, 15:50 UTCMay 27, 16:50 UTC1h 0m
2026-05-27 DLH2EE CPH → FRA May 27, 13:25 UTCMay 27, 14:35 UTC1h 10m
2026-05-27 DLH5NW FCO → MUC May 27, 11:10 UTCMay 27, 12:05 UTC55m
2026-05-27 DLH271 LIN → FRA May 27, 08:40 UTCMay 27, 09:40 UTC1h 0m
2026-05-27 DLH1HH MXP → MUC May 27, 06:55 UTCMay 27, 07:50 UTC55m
2026-05-27 DLH02K MUC → SVQ May 27, 04:19 UTCMay 27, 05:29 UTC1h 10m
2026-05-26 DLH64X FRA → MRS May 26, 19:50 UTCMay 26, 21:09 UTC1h 20m
2026-05-26 DLH7MN CTA → MUC May 26, 17:09 UTCMay 26, 18:14 UTC1h 5m

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

Mode-S 3C644A frequently asked

What is Mode-S code 3C644A?
3C644A is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIBJ.
Where is Mode-S 3C644A registered?
Mode-S code 3C644A is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C644A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C644A, octal 17062112, decimal 3,957,834.
What flights does 3C644A operate?
Mode-S 3C644A has broadcast 20 distinct callsigns, including DLH8KF, DLH5NC, DLH5AL, DLH062, DLH7C.