Apparatus

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sensors Mode-S transponder

3C6641

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRA · AIRBUS A-321

Hex
3C6641
Octal
17063101
Decimal
3,958,337
Country
DE
Tail
D-AIRA
Type
A321
No current signal · last broadcast 4h ago
Flights observed
191
Distinct callsigns
20
Country
DE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 3C6641.

Country allocation

The ICAO 24-bit address 3C6641 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
DLH4LM Lufthansa 4 2026-05-30
DLH3MA Lufthansa 4 2026-05-30
DLH8VL Lufthansa 3 2026-05-29
DLH4WT Lufthansa 3 2026-05-29
DLH9LL Lufthansa 2 2026-05-21
DLH99F Lufthansa 2 2026-05-03
DLH8HT Lufthansa 2 2026-05-20
DLH8AH Lufthansa 2 2026-05-22
DLH893 Lufthansa 2 2026-05-04
DLH892 Lufthansa 2 2026-05-03
DLH88H Lufthansa 2 2026-04-17
DLH880 Lufthansa 2 2026-05-12
DLH7CE Lufthansa 2 2026-05-30
DLH78H Lufthansa 2 2026-05-14
DLH6VP Lufthansa 2 2026-05-29
DLH6UA Lufthansa 2 2026-04-27
DLH6KA Lufthansa 2 2026-05-13
DLH6JT Lufthansa 2 2026-05-19
DLH5PP Lufthansa 2 2026-05-16
DLH5KW Lufthansa 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 DLH33P MUC → NCE Jun 2, 20:55 UTCJun 2, 22:05 UTC1h 10m
2026-06-02 DLH6TU MXP → MUC Jun 2, 16:30 UTCJun 2, 17:15 UTC45m
2026-06-02 DLH4LF FRA → LIN Jun 2, 13:45 UTCJun 2, 14:40 UTC55m
2026-06-02 DLH1713 TIA → MUC Jun 2, 10:25 UTCJun 2, 12:05 UTC1h 40m
2026-06-02 DLH1712 MUC → TIA Jun 2, 07:40 UTCJun 2, 09:00 UTC1h 20m
2026-06-01 DLH8WF MUC → ATH Jun 1, 17:25 UTCJun 1, 18:10 UTC45m
2026-06-01 DLH7T MUC → BER Jun 1, 15:15 UTCJun 1, 16:05 UTC50m
2026-06-01 DLH66J PMI → MUC Jun 1, 12:00 UTCJun 1, 13:45 UTC1h 45m
2026-06-01 DLH09Y NCE → MUC Jun 1, 08:50 UTCJun 1, 10:25 UTC1h 35m
2026-06-01 DLH9861 LEJ → PRG Jun 1, 05:05 UTCJun 1, 05:50 UTC45m
2026-05-30 DLH7CE BRE → MUC May 30, 20:40 UTCMay 30, 22:05 UTC1h 25m
2026-05-30 DLH3MA FRA → CPH May 30, 17:10 UTCMay 30, 19:40 UTC2h 30m
2026-05-30 DLH4LM FRA → ATH May 30, 13:25 UTCMay 30, 15:50 UTC2h 25m
2026-05-30 DLH6PJ ATH → FRA May 30, 10:45 UTCMay 30, 11:30 UTC45m
2026-05-30 DLH1VR FRA → HAM May 30, 08:50 UTCMay 30, 09:30 UTC40m
2026-05-30 DLH5KW MUC → CGN May 30, 04:45 UTCMay 30, 06:25 UTC1h 40m
2026-05-29 DLH6VP FRA → ARN May 29, 21:35 UTCMay 29, 23:30 UTC1h 55m
2026-05-29 DLH323 NAP → FRA May 29, 17:05 UTCMay 29, 19:00 UTC1h 55m
2026-05-29 DLH322 FRA → NAP May 29, 13:25 UTCMay 29, 15:15 UTC1h 50m
2026-05-29 DLH4WT SJJ → FRA May 29, 09:25 UTCMay 29, 11:30 UTC2h 5m
2026-05-29 DLH8VL FRA → LHR May 29, 06:25 UTCMay 29, 08:10 UTC1h 45m
2026-05-29 DLH7EK FRA → BRU May 29, 04:05 UTCMay 29, 05:00 UTC55m
2026-05-28 DLH1WP FRA → HAM May 28, 17:10 UTCMay 28, 17:55 UTC45m
2026-05-28 DLH4HH BLQ → FRA May 28, 14:55 UTCMay 28, 15:45 UTC50m
2026-05-28 DLH3YM FRA → MAN May 28, 13:05 UTCMay 28, 13:55 UTC50m
2026-05-28 DLH4WT SJJ → FRA May 28, 08:40 UTCMay 28, 10:45 UTC2h 5m
2026-05-28 DLH8VL FRA → LHR May 28, 05:40 UTCMay 28, 07:20 UTC1h 40m
2026-05-28 DLH1327 TUN → FRA May 28, 00:55 UTCMay 28, 03:05 UTC2h 10m
2026-05-27 DLH1326 FRA → TUN May 27, 20:20 UTCMay 27, 22:00 UTC1h 40m
2026-05-27 DLH3MA FRA → CPH May 27, 16:00 UTCMay 27, 18:35 UTC2h 35m
2026-05-27 DLH4LM FRA → ATH May 27, 12:20 UTCMay 27, 14:40 UTC2h 20m
2026-05-27 DLH4HU MXP → MUC May 27, 09:15 UTCMay 27, 10:35 UTC1h 20m
2026-05-27 DLH6EM BEG → FRA May 27, 07:05 UTCMay 27, 08:15 UTC1h 10m
2026-05-27 DLH821 GOT → FRA May 27, 04:19 UTCMay 27, 05:45 UTC1h 25m
2026-05-26 DLH7CE BRE → MUC May 26, 20:24 UTCMay 26, 21:40 UTC1h 15m
2026-05-26 DLH4KV HAJ → FRA May 26, 11:20 UTCMay 26, 13:34 UTC2h 15m
2026-05-26 DLH4NH FRA → SJJ May 26, 08:10 UTCMay 26, 10:10 UTC2h 0m
2026-05-26 DLH5KW MUC → CGN May 26, 04:20 UTCMay 26, 06:10 UTC1h 50m
2026-05-25 DLH6VP FRA → ARN May 25, 20:24 UTCMay 25, 22:10 UTC1h 45m
2026-05-25 DLH77W FRA → AGP May 25, 17:40 UTCMay 25, 19:15 UTC1h 35m
2026-05-25 DLH54N FRA → BCN May 25, 14:40 UTCMay 25, 16:20 UTC1h 40m
2026-05-25 DLH9CP FRA → BHX May 25, 12:00 UTCMay 25, 13:25 UTC1h 25m
2026-05-25 DLH8PK FRA → DUS May 25, 08:55 UTCMay 25, 10:20 UTC1h 25m
2026-05-25 DLH9PL HAJ → FRA May 25, 05:25 UTCMay 25, 06:55 UTC1h 30m
2026-05-24 DLH982 FRA → DUB May 24, 19:45 UTCMay 24, 21:25 UTC1h 40m
2026-05-24 DLH73H BIA → FRA May 24, 16:55 UTCMay 24, 18:10 UTC1h 15m
2026-05-24 DLH01Y LYS → FRA May 24, 14:40 UTCMay 24, 15:45 UTC1h 5m
2026-05-23 DLH7LY BLL → FRA May 23, 15:20 UTCMay 23, 17:15 UTC1h 55m
2026-05-23 DLH804 FRA → ARN May 23, 12:10 UTCMay 23, 13:50 UTC1h 40m
2026-05-23 DLH3HP FRA → DRS May 23, 04:15 UTCMay 23, 06:50 UTC2h 35m

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

Mode-S 3C6641 frequently asked

What is Mode-S code 3C6641?
3C6641 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRA.
Where is Mode-S 3C6641 registered?
Mode-S code 3C6641 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6641 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6641, octal 17063101, decimal 3,958,337.
What flights does 3C6641 operate?
Mode-S 3C6641 has broadcast 20 distinct callsigns, including DLH4LM, DLH3MA, DLH8VL, DLH4WT, DLH9LL.