Apparatus

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sensors Mode-S transponder

3C6421

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIAA · AIRBUS A-321

Hex
3C6421
Octal
17062041
Decimal
3,957,793
Country
DE
Tail
D-AIAA
Type
A321
Broadcasting now · callsign CFG5MF · 30,625 ft
Flights observed
95
Distinct callsigns
20
Country
DE
Last broadcast
2d ago

Current position

3C6421 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C6421 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
CFG5MF Condor Flugdienst 4 2026-05-23
CFG4700 - 4 2026-05-25
CFG8PA Condor Flugdienst 3 2026-04-15
CFG4MW - 3 2026-04-14
CFG4HF Condor Flugdienst 3 2026-04-14
CFG3DJ Condor Flugdienst 3 2026-05-24
CFG1MW - 3 2026-04-15
CFG9RF Condor Flugdienst 2 2026-05-24
CFG9HZ Condor Flugdienst 2 2026-05-27
CFG7HL Condor Flugdienst 2 2026-05-11
CFG7EP Condor Flugdienst 2 2026-04-27
CFG6XA Condor Flugdienst 2 2026-05-24
CFG6JV Condor Flugdienst 2 2026-05-11
CFG6HC Condor Flugdienst 2 2026-04-18
CFG5LE Condor Flugdienst 2 2026-05-11
CFG5KW Condor Flugdienst 2 2026-05-16
CFG4KC Condor Flugdienst 2 2026-05-10
CFG3FZ Condor Flugdienst 2 2026-05-11
CFG2MV Condor Flugdienst 2 2026-04-27
CFG2AW Condor Flugdienst 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 CFG2AW LPA → DUS May 27, 16:55 UTCMay 27, 21:00 UTC4h 5m
2026-05-27 CFG9HZ DUS → LPA May 27, 10:50 UTCMay 27, 14:50 UTC4h 0m
2026-05-27 CFG6RZ MUC → FRA May 27, 07:30 UTCMay 27, 09:30 UTC2h 0m
2026-05-27 CFG4WA DUS → PMI May 27, 04:04 UTCMay 27, 05:55 UTC1h 50m
2026-05-25 CFG4700 FMO → DUS May 25, 05:05 UTCMay 25, 05:30 UTC25m
2026-05-24 CFG1415 FNC → DUS May 24, 21:05 UTCMay 24, 23:46 UTC2h 41m
2026-05-24 CFG1415 FNC → DUS May 24, 20:15 UTCMay 24, 20:30 UTC15m
2026-05-24 CFG1414 DUS → FNC May 24, 18:55 UTCMay 24, 19:00 UTC5m
2026-05-24 CFG3DJ FRA → PRG May 24, 15:50 UTCMay 24, 17:00 UTC1h 10m
2026-05-24 CFG3DJ FRA → PRG May 24, 12:10 UTCMay 24, 14:55 UTC2h 45m
2026-05-24 CFG9RF PMI → DUS May 24, 07:35 UTCMay 24, 09:40 UTC2h 5m
2026-05-24 CFG6XA DUS → PMI May 24, 04:00 UTCMay 24, 06:00 UTC2h 0m
2026-05-23 CFG1414 DUS → FNC May 23, 19:20 UTCMay 23, 22:00 UTC2h 40m
2026-05-23 CFG5MF DUS → FNC May 23, 15:25 UTCMay 23, 16:20 UTC55m
2026-05-23 CFG5MF DUS → FNC May 23, 11:50 UTCMay 23, 14:40 UTC2h 50m
2026-05-23 CFG6UL PVK → DUS May 23, 07:55 UTCMay 23, 10:20 UTC2h 25m
2026-05-23 CFG6JL DUS → PVK May 23, 04:10 UTCMay 23, 06:20 UTC2h 10m
2026-05-20 CFG2AW LPA → DUS May 20, 16:30 UTCMay 20, 20:30 UTC4h 0m
2026-05-20 CFG9HZ DUS → LPA May 20, 10:45 UTCMay 20, 14:55 UTC4h 10m
2026-05-16 CFG5KW FNC → DUS May 16, 18:00 UTCMay 16, 20:55 UTC2h 55m
2026-05-16 CFG5KW FNC → DUS May 16, 17:10 UTCMay 16, 17:25 UTC15m
2026-05-16 CFG5MF DUS → FNC May 16, 15:35 UTCMay 16, 15:45 UTC10m
2026-05-16 CFG5MF DUS → FNC May 16, 11:51 UTCMay 16, 15:01 UTC3h 10m
2026-05-16 CFG1WA PMI → DUS May 16, 08:11 UTCMay 16, 10:11 UTC2h 0m
2026-05-16 CFG7NH DUS → PMI May 16, 04:35 UTCMay 16, 06:31 UTC1h 56m
2026-05-15 CFG7UE OLB → DUS May 15, 19:00 UTCMay 15, 20:40 UTC1h 40m
2026-05-15 CFG7WN DUS → OLB May 15, 16:05 UTCMay 15, 17:40 UTC1h 35m
2026-05-11 CFG5LE FAO → LEJ May 11, 17:15 UTCMay 11, 20:55 UTC3h 40m
2026-05-11 CFG7HL DUS → TFS May 11, 10:50 UTCMay 11, 15:25 UTC4h 35m
2026-05-11 CFG6JV PMI → DUS May 11, 07:25 UTCMay 11, 09:15 UTC1h 50m
2026-05-11 CFG3FZ DUS → PMI May 11, 04:05 UTCMay 11, 06:10 UTC2h 5m
2026-05-10 CFG9HA HAM → AGP May 10, 17:15 UTCMay 10, 20:20 UTC3h 5m
2026-05-10 CFG2AE HAM → PMI May 10, 13:19 UTCMay 10, 16:04 UTC2h 45m
2026-05-10 CFG4KC LEJ → LPA May 10, 09:00 UTCMay 10, 10:40 UTC1h 40m
2026-05-10 CFG4KD FRA → BCN May 10, 05:50 UTCMay 10, 07:30 UTC1h 40m
2026-05-09 CFG4KC LEJ → LPA May 9, 18:40 UTCMay 9, 21:09 UTC2h 30m
2026-05-09 CFG5WR ZRH → FRA May 9, 14:50 UTCMay 9, 17:40 UTC2h 50m
2026-05-07 CFG1MY PMI → DUS May 7, 07:35 UTCMay 7, 09:25 UTC1h 50m
2026-05-07 CFG8XZ KGS → LEJ May 7, 04:05 UTCMay 7, 06:05 UTC2h 0m
2026-05-04 CFG5LE FAO → LEJ May 4, 17:10 UTCMay 4, 20:50 UTC3h 41m
2026-05-04 CFG7HL DUS → TFS May 4, 10:55 UTCMay 4, 15:20 UTC4h 25m
2026-05-04 CFG6JV PMI → DUS May 4, 07:25 UTCMay 4, 09:15 UTC1h 50m
2026-05-04 CFG3FZ DUS → PMI May 4, 04:05 UTCMay 4, 06:25 UTC2h 20m
2026-05-03 CFG3JH HAM → FRA May 3, 17:24 UTCMay 3, 20:45 UTC3h 20m
2026-05-03 CFG3DJ FRA → PRG May 3, 11:50 UTCMay 3, 15:50 UTC4h 0m
2026-05-03 CFG9RF PMI → DUS May 3, 07:25 UTCMay 3, 09:15 UTC1h 50m
2026-05-03 CFG6XA DUS → PMI May 3, 04:10 UTCMay 3, 06:10 UTC2h 0m
2026-05-02 CFG7YA HER → DUS May 2, 17:10 UTCMay 2, 20:15 UTC3h 5m
2026-05-02 CFG7TE DUS → HER May 2, 12:50 UTCMay 2, 15:35 UTC2h 45m
2026-04-29 CFG8PU - Apr 29, 15:40 UTCApr 29, 19:20 UTC3h 40m

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

Mode-S 3C6421 frequently asked

What is Mode-S code 3C6421?
3C6421 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIAA.
Where is Mode-S 3C6421 registered?
Mode-S code 3C6421 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6421 broadcasting right now?
Yes. Mode-S 3C6421 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6421, octal 17062041, decimal 3,957,793.
What flights does 3C6421 operate?
Mode-S 3C6421 has broadcast 20 distinct callsigns, including CFG5MF, CFG4700, CFG8PA, CFG4MW, CFG4HF.