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sensors Mode-S transponder

3C4B2D

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABYM · BOEING 747-8

Hex
3C4B2D
Octal
17045455
Decimal
3,951,405
Country
DE
Tail
D-ABYM
Type
B748
No current signal · last broadcast Jul 26, 20:10 UTC
Flights observed
136
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 20:10 UTC

Last known position

Most recent position reported by Mode-S 3C4B2D.

Country allocation

The ICAO 24-bit address 3C4B2D 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
DLH716 Lufthansa 15 2026-07-23
DLH511 - 15 2026-07-16
DLH717 Lufthansa 14 2026-07-24
DLH510 - 13 2026-07-15
DLH499 - 9 2026-07-13
DLH507 - 7 2026-06-18
DLH573 - 6 2026-07-19
DLH572 Lufthansa 6 2026-07-18
DLH506 Lufthansa 6 2026-06-17
DLH498 - 6 2026-07-12
DLH455 Lufthansa 6 2026-07-20
DLH454 - 6 2026-07-20
DLH402 Lufthansa 5 2026-07-26
DLH403 Lufthansa 4 2026-07-25
DLH7K - 2 2026-07-11
DLH463 - 2 2026-07-07
DLH462 Lufthansa 2 2026-07-07
DLH457 Lufthansa 2 2026-07-22
DLH456 - 2 2026-07-22
DLH430 Lufthansa 2 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH402 FRA → EWR Jul 26, 11:55 UTCJul 26, 20:00 UTC8h 5m
2026-07-25 DLH403 EWR → FRA Jul 25, 23:15 UTCJul 26, 05:50 UTC6h 35m
2026-07-25 DLH402 FRA → EWR Jul 25, 12:40 UTCJul 25, 20:15 UTC7h 35m
2026-07-24 DLH717 HND → FRA Jul 24, 03:20 UTCJul 24, 16:35 UTC13h 15m
2026-07-23 DLH716 FRA → HND Jul 23, 12:45 UTCJul 24, 00:40 UTC11h 55m
2026-07-22 DLH457 LAX → FRA Jul 22, 23:05 UTCJul 23, 08:55 UTC9h 50m
2026-07-22 DLH456 - Jul 22, 10:20 UTCJul 22, 20:25 UTC10h 5m
2026-07-21 DLH403 EWR → FRA Jul 21, 23:00 UTCJul 22, 05:25 UTC6h 25m
2026-07-21 DLH402 FRA → EWR Jul 21, 12:10 UTCJul 21, 20:25 UTC8h 15m
2026-07-20 DLH455 SFO → FRA Jul 20, 22:45 UTCJul 21, 08:20 UTC9h 34m
2026-07-20 DLH454 - Jul 20, 09:00 UTCJul 20, 19:50 UTC10h 50m
2026-07-19 DLH573 - Jul 19, 17:30 UTCJul 20, 03:15 UTC9h 45m
2026-07-18 DLH572 FRA → JNB Jul 18, 21:00 UTCJul 19, 06:40 UTC9h 40m
2026-07-18 DLH717 HND → FRA Jul 18, 03:45 UTCJul 18, 17:15 UTC13h 30m
2026-07-17 DLH716 FRA → HND Jul 17, 13:10 UTCJul 18, 00:39 UTC11h 30m
2026-07-16 DLH511 EZE → FRA Jul 16, 19:55 UTCJul 17, 08:25 UTC12h 30m
2026-07-15 DLH510 FRA → EZE Jul 15, 20:40 UTCJul 16, 09:40 UTC13h 0m
2026-07-14 DLH511 - Jul 14, 20:00 UTCJul 15, 08:55 UTC12h 54m
2026-07-13 DLH510 FRA → EZE Jul 13, 20:10 UTCJul 14, 09:30 UTC13h 20m
2026-07-13 DLH499 - Jul 13, 03:40 UTCJul 13, 13:20 UTC9h 40m
2026-07-13 DLH499 - Jul 13, 02:50 UTCJul 13, 03:05 UTC15m
2026-07-12 DLH498 - Jul 12, 12:15 UTCJul 12, 23:40 UTC11h 25m
2026-07-11 DLH423 - Jul 11, 22:30 UTCJul 12, 04:45 UTC6h 15m
2026-07-11 DLH7K FRA → BOS Jul 11, 12:05 UTCJul 11, 19:25 UTC7h 20m
2026-07-10 DLH455 SFO → FRA Jul 10, 23:05 UTCJul 11, 08:50 UTC9h 45m
2026-07-10 DLH454 - Jul 10, 09:30 UTCJul 10, 20:30 UTC11h 0m
2026-07-09 DLH717 HND → FRA Jul 9, 03:15 UTCJul 9, 16:45 UTC13h 30m
2026-07-08 DLH716 FRA → HND Jul 8, 12:55 UTCJul 9, 00:45 UTC11h 50m
2026-07-07 DLH463 - Jul 7, 21:15 UTCJul 8, 05:40 UTC8h 25m
2026-07-07 DLH462 FRA → MIA Jul 7, 09:25 UTCJul 7, 18:45 UTC9h 20m
2026-07-06 DLH403 EWR → FRA Jul 6, 22:45 UTCJul 7, 05:15 UTC6h 30m
2026-07-06 DLH402 FRA → EWR Jul 6, 12:10 UTCJul 6, 20:00 UTC7h 50m
2026-07-05 DLH511 EZE → FRA Jul 5, 19:45 UTCJul 6, 08:10 UTC12h 25m
2026-07-05 DLH510 - Jul 5, 10:30 UTCJul 5, 11:45 UTC1h 15m
2026-07-04 DLH510 - Jul 4, 20:15 UTCJul 5, 08:30 UTC12h 15m
2026-07-02 DLH573 JNB → FRA Jul 2, 17:35 UTCJul 3, 03:30 UTC9h 55m
2026-07-01 DLH572 - Jul 1, 20:55 UTCJul 2, 06:41 UTC9h 46m
2026-06-30 DLH717 HND → FRA Jun 30, 03:30 UTCJun 30, 16:55 UTC13h 25m
2026-06-29 DLH716 FRA → HND Jun 29, 12:49 UTCJun 30, 00:45 UTC11h 55m
2026-06-28 DLH573 JNB → FRA Jun 28, 17:25 UTCJun 29, 03:39 UTC10h 15m
2026-06-27 DLH572 - Jun 27, 20:55 UTCJun 28, 06:24 UTC9h 30m
2026-06-26 DLH457 - Jun 26, 23:00 UTCJun 27, 09:15 UTC10h 15m
2026-06-26 DLH456 FRA → LAX Jun 26, 09:39 UTCJun 26, 20:34 UTC10h 55m
2026-06-25 DLH423 - Jun 25, 22:45 UTCJun 26, 04:55 UTC6h 10m
2026-06-25 DLH7K FRA → BOS Jun 25, 12:30 UTCJun 25, 19:59 UTC7h 30m
2026-06-24 DLH455 SFO → FRA Jun 24, 22:10 UTCJun 25, 08:20 UTC10h 10m
2026-06-24 DLH454 FRA → SFO Jun 24, 08:55 UTCJun 24, 19:29 UTC10h 35m
2026-06-22 DLH511 EZE → FRA Jun 22, 19:44 UTCJun 23, 08:35 UTC12h 50m
2026-06-21 DLH510 FRA → EZE Jun 21, 20:24 UTCJun 22, 09:30 UTC13h 5m
2026-06-20 DLH511 EZE → FRA Jun 20, 19:55 UTCJun 21, 08:30 UTC12h 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-ABYM page for operator, model, and routing details .

Mode-S 3C4B2D frequently asked

What is Mode-S code 3C4B2D?
3C4B2D is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABYM.
Where is Mode-S 3C4B2D registered?
Mode-S code 3C4B2D is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4B2D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4B2D, octal 17045455, decimal 3,951,405.
What flights does 3C4B2D operate?
Mode-S 3C4B2D has broadcast 20 distinct callsigns, including DLH716, DLH511, DLH717, DLH510, DLH499.