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sensors Mode-S transponder

3C4AD8

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABVX · BOEING 747-400

Hex
3C4AD8
Octal
17045330
Decimal
3,951,320
Country
DE
Tail
D-ABVX
Type
B744
Broadcasting now · callsign DLH492 · 35,000 ft
Flights observed
84
Distinct callsigns
13
Country
DE
Last broadcast
1h ago

Current position

3C4AD8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C4AD8 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 13 distinct

Callsign Airline Flights Last seen
DLH441 Lufthansa 10 2026-06-06
DLH780 Lufthansa 9 2026-05-28
DLH754 Lufthansa 9 2026-06-06
DLH3CF Lufthansa 9 2026-06-05
DLH781 Lufthansa 8 2026-05-29
DLH755 Lufthansa 7 2026-06-06
DLH423 Lufthansa 7 2026-06-04
DLH7K Lufthansa 6 2026-06-04
DLH454 Lufthansa 6 2026-05-16
DLH455 Lufthansa 5 2026-05-16
DLH492 Lufthansa 4 2026-06-07
DLH493 Lufthansa 3 2026-05-08
DLH4T3 Lufthansa 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-07 DLH492 FRA → YVR Jun 7, 11:50 UTCJun 7, 12:00 UTC10m
2026-06-06 DLH755 BLR → FRA Jun 6, 22:39 UTCJun 7, 07:10 UTC8h 30m
2026-06-06 DLH755 BLR → FRA Jun 6, 21:54 UTCJun 6, 22:05 UTC10m
2026-06-06 DLH754 FRA → BLR Jun 6, 19:34 UTCJun 6, 19:44 UTC10m
2026-06-06 DLH754 FRA → BLR Jun 6, 11:14 UTCJun 6, 18:14 UTC7h 0m
2026-06-06 DLH441 IAH → FRA Jun 6, 01:45 UTCJun 6, 06:50 UTC5h 5m
2026-06-05 DLH441 IAH → FRA Jun 5, 22:05 UTCJun 6, 01:40 UTC3h 35m
2026-06-05 DLH3CF ARN → FRA Jun 5, 08:30 UTCJun 5, 19:20 UTC10h 50m
2026-06-04 DLH423 BOS → FRA Jun 4, 22:35 UTCJun 5, 04:55 UTC6h 20m
2026-06-04 DLH423 BOS → FRA Jun 4, 20:15 UTCJun 4, 22:05 UTC1h 50m
2026-06-04 DLH7K FRA → BOS Jun 4, 12:15 UTCJun 4, 19:45 UTC7h 30m
2026-06-03 DLH423 BOS → FRA Jun 3, 22:20 UTCJun 4, 04:55 UTC6h 35m
2026-06-03 DLH7K FRA → BOS Jun 3, 12:00 UTCJun 3, 19:20 UTC7h 20m
2026-06-02 DLH441 IAH → FRA Jun 2, 21:35 UTCJun 3, 06:15 UTC8h 40m
2026-06-02 DLH3CF ARN → FRA Jun 2, 09:00 UTCJun 2, 18:20 UTC9h 20m
2026-05-31 DLH755 BLR → FRA May 31, 23:30 UTCJun 1, 08:45 UTC9h 15m
2026-05-31 DLH754 FRA → BLR May 31, 21:05 UTCMay 31, 21:20 UTC15m
2026-05-31 DLH754 FRA → BLR May 31, 12:55 UTCMay 31, 19:45 UTC6h 50m
2026-05-30 DLH441 IAH → FRA May 30, 21:15 UTCMay 30, 23:30 UTC2h 15m
2026-05-30 DLH3CF ARN → FRA May 30, 09:00 UTCMay 30, 18:35 UTC9h 35m
2026-05-29 DLH781 SIN → FRA May 29, 16:10 UTCMay 30, 04:35 UTC12h 25m
2026-05-28 DLH780 FRA → SIN May 28, 21:40 UTCMay 29, 07:45 UTC10h 5m
2026-05-28 DLH780 FRA → SIN May 28, 20:15 UTCMay 28, 21:35 UTC1h 20m
2026-05-27 DLH441 IAH → FRA May 27, 22:30 UTCMay 28, 07:45 UTC9h 15m
2026-05-27 DLH3CF ARN → FRA May 27, 09:25 UTCMay 27, 19:40 UTC10h 15m
2026-05-26 DLH441 IAH → FRA May 26, 21:25 UTCMay 27, 06:20 UTC8h 55m
2026-05-26 DLH3CF ARN → FRA May 26, 08:30 UTCMay 26, 18:50 UTC10h 20m
2026-05-25 DLH423 BOS → FRA May 25, 22:34 UTCMay 26, 05:00 UTC6h 25m
2026-05-25 DLH7K FRA → BOS May 25, 12:00 UTCMay 25, 19:25 UTC7h 24m
2026-05-24 DLH755 BLR → FRA May 24, 23:45 UTCMay 25, 08:00 UTC8h 15m
2026-05-24 DLH754 FRA → BLR May 24, 20:20 UTCMay 24, 20:30 UTC10m
2026-05-24 DLH754 FRA → BLR May 24, 12:05 UTCMay 24, 18:50 UTC6h 45m
2026-05-23 DLH441 IAH → FRA May 23, 22:05 UTCMay 24, 06:55 UTC8h 50m
2026-05-23 DLH3CF ARN → FRA May 23, 08:50 UTCMay 23, 19:20 UTC10h 30m
2026-05-22 DLH423 BOS → FRA May 22, 22:35 UTCMay 23, 04:35 UTC5h 59m
2026-05-22 DLH7K FRA → BOS May 22, 12:00 UTCMay 22, 19:25 UTC7h 25m
2026-05-21 DLH755 BLR → FRA May 21, 22:35 UTCMay 22, 07:50 UTC9h 15m
2026-05-21 DLH754 FRA → BLR May 21, 11:20 UTCMay 21, 20:20 UTC9h 0m
2026-05-20 DLH441 IAH → FRA May 20, 21:30 UTCMay 21, 06:15 UTC8h 45m
2026-05-20 DLH3CF ARN → FRA May 20, 08:40 UTCMay 20, 19:05 UTC10h 25m
2026-05-18 DLH781 SIN → FRA May 18, 16:15 UTCMay 19, 04:20 UTC12h 4m
2026-05-17 DLH780 FRA → SIN May 17, 20:05 UTCMay 18, 08:20 UTC12h 15m
2026-05-16 DLH455 SFO → FRA May 16, 22:20 UTCMay 17, 08:15 UTC9h 55m
2026-05-16 DLH454 FRA → SFO May 16, 09:06 UTCMay 16, 19:45 UTC10h 40m
2026-05-15 DLH781 SIN → FRA May 15, 16:15 UTCMay 16, 04:30 UTC12h 15m
2026-05-14 DLH780 FRA → SIN May 14, 20:30 UTCMay 15, 07:55 UTC11h 25m
2026-05-13 DLH455 SFO → FRA May 13, 22:55 UTCMay 14, 08:30 UTC9h 35m
2026-05-13 DLH454 FRA → SFO May 13, 09:15 UTCMay 13, 20:15 UTC11h 0m
2026-05-12 DLH423 BOS → FRA May 12, 22:31 UTCMay 13, 05:00 UTC6h 30m
2026-05-12 DLH7K FRA → BOS May 12, 12:05 UTCMay 12, 19:50 UTC7h 45m

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

Mode-S 3C4AD8 frequently asked

What is Mode-S code 3C4AD8?
3C4AD8 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABVX.
Where is Mode-S 3C4AD8 registered?
Mode-S code 3C4AD8 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4AD8 broadcasting right now?
Yes. Mode-S 3C4AD8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4AD8, octal 17045330, decimal 3,951,320.
What flights does 3C4AD8 operate?
Mode-S 3C4AD8 has broadcast 13 distinct callsigns, including DLH441, DLH780, DLH754, DLH3CF, DLH781.