Apparatus

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sensors Mode-S transponder

3C4A22

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABQB · DE HAVILLAND DHC-8-400 Dash 8

Hex
3C4A22
Octal
17045042
Decimal
3,951,138
Country
DE
Tail
D-ABQB
Type
DH8D
No current signal · last broadcast 1d ago
Flights observed
61
Distinct callsigns
16
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3C4A22.

Country allocation

The ICAO 24-bit address 3C4A22 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 16 distinct

Callsign Airline Flights Last seen
DLH797 - 10 2026-07-08
DLH796 Lufthansa 9 2026-07-08
DLH479 - 6 2026-07-06
DLH478 Lufthansa 6 2026-07-06
DLH753 - 4 2026-07-12
DLH7JF - 3 2026-06-28
DLH761 - 3 2026-07-05
DLH760 Lufthansa 3 2026-07-05
DLH6EE - 3 2026-06-28
DLH4MW Lufthansa 3 2026-06-28
DLH107 - 3 2026-06-28
DLH752 - 2 2026-07-12
DLH501 - 2 2026-07-10
DLH500 - 2 2026-07-09
DLH9897 Lufthansa 1 2026-05-29
BOE843 - 1 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 DLH753 - Jul 12, 12:35 UTCJul 13, 06:40 UTC18h 5m
2026-07-12 DLH752 FRA → FRA Jul 12, 11:25 UTCJul 13, 06:40 UTC19h 15m
2026-07-11 DLH753 - Jul 11, 12:35 UTCJul 12, 06:55 UTC18h 20m
2026-07-11 DLH753 FRA → FRA Jul 11, 11:30 UTCJul 12, 06:55 UTC19h 25m
2026-07-10 DLH501 - Jul 10, 19:40 UTCJul 11, 06:05 UTC10h 25m
2026-07-09 DLH500 - Jul 9, 20:50 UTCJul 10, 07:55 UTC11h 5m
2026-07-08 DLH797 - Jul 8, 18:05 UTCJul 9, 04:30 UTC10h 25m
2026-07-08 DLH797 - Jul 8, 16:00 UTCJul 8, 16:15 UTC15m
2026-07-08 DLH796 FRA → HKG Jul 8, 06:20 UTCJul 8, 06:50 UTC30m
2026-07-07 DLH796 FRA → HKG Jul 7, 20:05 UTCJul 7, 23:35 UTC3h 30m
2026-07-06 DLH479 YUL → FRA Jul 6, 22:20 UTCJul 7, 04:40 UTC6h 20m
2026-07-06 DLH478 FRA → YUL Jul 6, 12:45 UTCJul 6, 20:00 UTC7h 15m
2026-07-05 DLH761 - Jul 5, 21:40 UTCJul 6, 05:25 UTC7h 45m
2026-07-05 DLH760 FRA → DEL Jul 5, 11:55 UTCJul 5, 18:45 UTC6h 50m
2026-07-04 DLH797 HKG → FRA Jul 4, 18:05 UTCJul 5, 04:15 UTC10h 10m
2026-07-04 DLH797 HKG → FRA Jul 4, 15:55 UTCJul 4, 16:10 UTC15m
2026-07-04 DLH796 FRA → HKG Jul 4, 06:35 UTCJul 4, 07:00 UTC25m
2026-07-03 DLH796 FRA → HKG Jul 3, 20:15 UTCJul 3, 23:45 UTC3h 30m
2026-07-02 DLH479 - Jul 2, 22:55 UTCJul 3, 05:00 UTC6h 5m
2026-07-02 DLH478 FRA → YUL Jul 2, 12:50 UTCJul 2, 20:15 UTC7h 25m
2026-07-01 DLH753 - Jul 1, 12:35 UTCJul 2, 06:55 UTC18h 20m
2026-07-01 DLH752 FRA → HYD Jul 1, 11:30 UTCJul 2, 06:55 UTC19h 25m
2026-06-29 DLH797 HKG → FRA Jun 29, 17:59 UTCJun 30, 04:00 UTC10h 1m
2026-06-29 DLH797 HKG → FRA Jun 29, 15:45 UTCJun 29, 16:04 UTC20m
2026-06-29 DLH796 FRA → HKG Jun 29, 07:40 UTCJun 29, 08:24 UTC45m
2026-06-28 DLH796 FRA → HKG Jun 28, 20:50 UTCJun 29, 00:34 UTC3h 45m
2026-06-28 DLH6EE - Jun 28, 17:19 UTCJun 28, 17:55 UTC35m
2026-06-28 DLH4MW BER → FRA Jun 28, 15:14 UTCJun 28, 16:00 UTC45m
2026-06-28 DLH107 - Jun 28, 12:44 UTCJun 28, 13:19 UTC35m
2026-06-28 DLH7JF FRA → MUC Jun 28, 10:39 UTCJun 28, 11:14 UTC35m
2026-06-27 DLH479 YUL → FRA Jun 27, 23:10 UTCJun 28, 05:40 UTC6h 30m
2026-06-27 DLH478 FRA → YUL Jun 27, 13:49 UTCJun 27, 20:39 UTC6h 50m
2026-06-26 DLH479 YUL → FRA Jun 26, 22:29 UTCJun 27, 04:59 UTC6h 30m
2026-06-26 DLH478 FRA → YUL Jun 26, 12:59 UTCJun 26, 20:10 UTC7h 10m
2026-06-25 DLH761 DEL → FRA Jun 25, 21:40 UTCJun 26, 05:24 UTC7h 45m
2026-06-25 DLH760 FRA → DEL Jun 25, 11:50 UTCJun 25, 18:45 UTC6h 55m
2026-06-24 DLH761 DEL → FRA Jun 24, 23:20 UTCJun 25, 06:44 UTC7h 25m
2026-06-24 DLH760 FRA → DEL Jun 24, 13:34 UTCJun 24, 20:40 UTC7h 5m
2026-06-23 DLH501 - Jun 23, 19:39 UTCJun 24, 06:25 UTC10h 45m
2026-06-22 DLH500 - Jun 22, 20:44 UTCJun 23, 07:35 UTC10h 50m
2026-06-21 DLH479 YUL → FRA Jun 21, 02:15 UTCJun 21, 08:40 UTC6h 25m
2026-06-20 DLH478 FRA → YUL Jun 20, 13:55 UTCJun 20, 21:10 UTC7h 15m
2026-06-19 DLH479 YUL → FRA Jun 19, 23:09 UTCJun 20, 05:29 UTC6h 20m
2026-06-19 DLH478 FRA → YUL Jun 19, 13:14 UTCJun 19, 20:24 UTC7h 10m
2026-06-17 DLH797 HKG → FRA Jun 17, 18:20 UTCJun 18, 04:20 UTC10h 0m
2026-06-17 DLH797 HKG → FRA Jun 17, 15:50 UTCJun 17, 16:10 UTC20m
2026-06-17 DLH796 FRA → HKG Jun 17, 06:20 UTCJun 17, 06:50 UTC30m
2026-06-16 DLH796 FRA → HKG Jun 16, 20:00 UTCJun 16, 23:30 UTC3h 30m
2026-06-16 DLH6EE - Jun 16, 16:25 UTCJun 16, 17:00 UTC35m
2026-06-16 DLH4MW BER → FRA Jun 16, 14:39 UTCJun 16, 15:15 UTC35m

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

Mode-S 3C4A22 frequently asked

What is Mode-S code 3C4A22?
3C4A22 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABQB.
Where is Mode-S 3C4A22 registered?
Mode-S code 3C4A22 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A22 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A22, octal 17045042, decimal 3,951,138.
What flights does 3C4A22 operate?
Mode-S 3C4A22 has broadcast 16 distinct callsigns, including DLH797, DLH796, DLH479, DLH478, DLH753.