Apparatus

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sensors Mode-S transponder

3C64A1

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIEA · AIRBUS A-321neo

Hex
3C64A1
Octal
17062241
Decimal
3,957,921
Country
DE
Tail
D-AIEA
Type
A21N
No current signal · last broadcast Jul 26, 19:55 UTC
Flights observed
525
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 19:55 UTC

Last known position

Most recent position reported by Mode-S 3C64A1.

Country allocation

The ICAO 24-bit address 3C64A1 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
DLH2558 - 25 2026-07-16
DLH8EJ - 14 2026-07-22
DLH2559 - 14 2026-07-17
DLH1CP - 13 2026-07-04
DLH47T Lufthansa 12 2026-07-26
DLH01A Lufthansa 12 2026-07-26
DLH7XV Lufthansa 10 2026-07-23
DLH5EE Lufthansa 10 2026-07-22
DLH9WF - 8 2026-07-24
DLH9FM Lufthansa 8 2026-07-25
DLH2ET Lufthansa 8 2026-07-25
DLH1YY Lufthansa 8 2026-07-24
DLH9PK - 7 2026-07-12
DLH98J - 7 2026-07-16
DLH5MM - 7 2026-07-11
DLH48H - 7 2026-07-16
DLH3XV - 7 2026-07-12
DLH3TR - 7 2026-07-19
DLH3LX - 7 2026-07-11
DLH2X - 7 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH1WR BER → FRA Jul 26, 18:05 UTCJul 26, 19:55 UTC1h 50m
2026-07-26 DLH01A FRA → BCN Jul 26, 13:50 UTCJul 26, 16:35 UTC2h 45m
2026-07-26 DLH47T MUC → LIS Jul 26, 09:40 UTCJul 26, 12:15 UTC2h 35m
2026-07-26 DLH33K FRA → MAD Jul 26, 05:40 UTCJul 26, 08:15 UTC2h 36m
2026-07-25 DLH41U FRA → LIS Jul 25, 20:00 UTCJul 25, 22:20 UTC2h 20m
2026-07-25 DLH2ET BEG → FRA Jul 25, 16:40 UTCJul 25, 18:25 UTC1h 45m
2026-07-25 DLH9FM FRA → DUS Jul 25, 13:30 UTCJul 25, 15:30 UTC2h 0m
2026-07-25 DLH8LY FRA → DUB Jul 25, 10:10 UTCJul 25, 12:00 UTC1h 50m
2026-07-25 DLH6LK FRA → HAM Jul 25, 07:10 UTCJul 25, 08:55 UTC1h 45m
2026-07-25 DLH1LX SOF → FRA Jul 25, 03:25 UTCJul 25, 05:20 UTC1h 55m
2026-07-24 DLH2FN CPH → FRA Jul 24, 20:30 UTCJul 24, 22:00 UTC1h 30m
2026-07-24 DLH8PN CPH → FRA Jul 24, 17:00 UTCJul 24, 18:45 UTC1h 45m
2026-07-24 DLH5UW - Jul 24, 14:00 UTCJul 24, 16:05 UTC2h 5m
2026-07-24 DLH1YY POZ → FRA Jul 24, 10:50 UTCJul 24, 12:30 UTC1h 40m
2026-07-24 DLH9WF - Jul 24, 07:50 UTCJul 24, 09:45 UTC1h 55m
2026-07-24 DLH4EK OSL → MUC Jul 24, 04:20 UTCJul 24, 05:40 UTC1h 20m
2026-07-23 DLH8FT LCY → FRA Jul 23, 19:40 UTCJul 23, 21:20 UTC1h 40m
2026-07-23 DLH7PF BRS → FRA Jul 23, 16:25 UTCJul 23, 18:30 UTC2h 5m
2026-07-23 DLH4AA - Jul 23, 12:50 UTCJul 23, 15:20 UTC2h 30m
2026-07-23 DLH1KX HEL → FRA Jul 23, 10:05 UTCJul 23, 11:30 UTC1h 25m
2026-07-23 DLH6YW FRA → HAM Jul 23, 07:35 UTCJul 23, 09:00 UTC1h 25m
2026-07-23 DLH7XV BSL → MUC Jul 23, 04:10 UTCJul 23, 06:10 UTC2h 0m
2026-07-22 DLH5EE CPH → FRA Jul 22, 19:45 UTCJul 22, 21:30 UTC1h 45m
2026-07-22 DLH39T - Jul 22, 17:10 UTCJul 22, 18:35 UTC1h 25m
2026-07-22 DLH06C MUC → GRZ Jul 22, 14:10 UTCJul 22, 15:45 UTC1h 35m
2026-07-22 DLH8EJ - Jul 22, 11:10 UTCJul 22, 12:45 UTC1h 35m
2026-07-21 DLH7PF BRS → FRA Jul 21, 16:10 UTCJul 21, 18:25 UTC2h 15m
2026-07-21 DLH4AA MUC → TRD Jul 21, 12:45 UTCJul 21, 15:10 UTC2h 25m
2026-07-21 DLH4E HAM → MUC Jul 21, 10:30 UTCJul 21, 11:30 UTC1h 0m
2026-07-21 DLH1JH FRA → VCE Jul 21, 08:25 UTCJul 21, 09:25 UTC1h 0m
2026-07-21 DLH4UV - Jul 21, 05:35 UTCJul 21, 06:20 UTC45m
2026-07-20 DLH4T MUC → BER Jul 20, 20:00 UTCJul 20, 20:40 UTC40m
2026-07-20 DLH2ET EDI → MUC Jul 20, 17:00 UTCJul 20, 18:50 UTC1h 50m
2026-07-20 DLH9FM - Jul 20, 13:40 UTCJul 20, 15:35 UTC1h 55m
2026-07-20 DLH5MA - Jul 20, 11:10 UTCJul 20, 12:25 UTC1h 15m
2026-07-20 DLH5KH MUC → OSL Jul 20, 08:35 UTCJul 20, 09:50 UTC1h 15m
2026-07-20 DLH7YC - Jul 20, 05:25 UTCJul 20, 07:10 UTC1h 45m
2026-07-19 DLH1WR BER → FRA Jul 19, 18:10 UTCJul 19, 20:00 UTC1h 50m
2026-07-19 DLH01A LIS → MUC Jul 19, 14:20 UTCJul 19, 16:45 UTC2h 25m
2026-07-19 DLH47T MUC → LIS Jul 19, 09:40 UTCJul 19, 12:40 UTC3h 0m
2026-07-19 DLH3TR - Jul 19, 07:05 UTCJul 19, 07:55 UTC50m
2026-07-19 DLH2X - Jul 19, 05:15 UTCJul 19, 06:05 UTC50m
2026-07-18 DLH2427 TRD → MUC Jul 18, 20:05 UTCJul 18, 21:55 UTC1h 50m
2026-07-18 DLH7PF TRD → OSL Jul 18, 17:25 UTCJul 18, 18:20 UTC55m
2026-07-18 DLH4AA - Jul 18, 13:20 UTCJul 18, 15:30 UTC2h 10m
2026-07-18 DLH1KX HEL → FRA Jul 18, 10:35 UTCJul 18, 12:05 UTC1h 30m
2026-07-18 DLH6YW - Jul 18, 07:30 UTCJul 18, 08:55 UTC1h 25m
2026-07-18 DLH7XV ARN → MUC Jul 18, 04:15 UTCJul 18, 06:05 UTC1h 50m
2026-07-17 DLH5EE CPH → FRA Jul 17, 20:10 UTCJul 17, 21:55 UTC1h 45m
2026-07-17 DLH7E - Jul 17, 17:20 UTCJul 17, 18:29 UTC1h 10m

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

Mode-S 3C64A1 frequently asked

What is Mode-S code 3C64A1?
3C64A1 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIEA.
Where is Mode-S 3C64A1 registered?
Mode-S code 3C64A1 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C64A1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C64A1, octal 17062241, decimal 3,957,921.
What flights does 3C64A1 operate?
Mode-S 3C64A1 has broadcast 20 distinct callsigns, including DLH2558, DLH8EJ, DLH2559, DLH1CP, DLH47T.