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sensors Mode-S transponder

3C4A0C

ICAO 24-bit transponder address · allocated to Germany

Hex
3C4A0C
Octal
17045014
Decimal
3,951,116
Country
DE
No current signal · last broadcast 3h ago
Flights observed
157
Distinct callsigns
20
Country
DE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 3C4A0C.

Country allocation

The ICAO 24-bit address 3C4A0C 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
DLH796 Lufthansa 19 2026-07-02
DLH797 Lufthansa 18 2026-07-02
DLH729 - 13 2026-07-07
DLH500 - 11 2026-06-28
DLH728 - 10 2026-07-07
DLH501 - 10 2026-06-29
DLH753 - 7 2026-06-17
DLH471 Lufthansa 7 2026-05-31
DLH470 Lufthansa 7 2026-05-31
DLH468 - 7 2026-07-14
DLH569 - 6 2026-07-12
DLH469 - 6 2026-07-14
DLH451 Lufthansa 6 2026-07-01
DLH450 Lufthansa 6 2026-06-30
DLH761 - 3 2026-07-10
DLH760 - 3 2026-07-10
DLH752 Lufthansa 2 2026-06-18
DLH543 Lufthansa 2 2026-06-11
DLH542 Lufthansa 2 2026-06-10
DLH479 - 2 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH469 - Jul 14, 21:20 UTCJul 15, 00:40 UTC3h 19m
2026-07-14 DLH468 FRA → AUS Jul 14, 08:45 UTCJul 14, 19:10 UTC10h 25m
2026-07-13 DLH4N - Jul 13, 15:35 UTCJul 13, 16:10 UTC35m
2026-07-13 DLH5YE FRA → MUC Jul 13, 13:50 UTCJul 13, 14:20 UTC30m
2026-07-13 DLH1RF MUC → FRA Jul 13, 10:20 UTCJul 13, 11:00 UTC40m
2026-07-13 DLH4LC - Jul 13, 08:30 UTCJul 13, 09:00 UTC30m
2026-07-12 DLH569 FRA → FRA Jul 12, 10:15 UTCJul 13, 04:40 UTC18h 25m
2026-07-11 DLH569 FRA → FRA Jul 11, 10:30 UTCJul 12, 04:50 UTC18h 20m
2026-07-10 DLH761 - Jul 10, 21:45 UTCJul 11, 05:45 UTC8h 0m
2026-07-10 DLH760 FRA → DEL Jul 10, 11:45 UTCJul 10, 18:30 UTC6h 45m
2026-07-09 DLH569 - Jul 9, 11:05 UTCJul 10, 05:05 UTC18h 0m
2026-07-09 DLH569 FRA → FRA Jul 9, 10:25 UTCJul 10, 05:05 UTC18h 40m
2026-07-07 DLH729 - Jul 7, 23:15 UTCJul 8, 16:50 UTC17h 35m
2026-07-07 DLH729 - Jul 7, 17:35 UTCJul 8, 16:50 UTC23h 15m
2026-07-07 DLH728 - Jul 7, 15:05 UTCJul 8, 13:45 UTC22h 40m
2026-07-07 DLH728 - Jul 7, 14:15 UTCJul 8, 13:00 UTC22h 45m
2026-07-05 DLH569 FRA → FRA Jul 5, 10:25 UTCJul 6, 05:00 UTC18h 35m
2026-07-04 DLH569 FRA → FRA Jul 4, 10:15 UTCJul 5, 04:40 UTC18h 25m
2026-07-03 DLH479 YUL → FRA Jul 3, 22:55 UTCJul 4, 05:05 UTC6h 10m
2026-07-03 DLH478 FRA → YUL Jul 3, 12:50 UTCJul 3, 20:10 UTC7h 20m
2026-07-02 DLH797 HKG → FRA Jul 2, 18:00 UTCJul 3, 04:15 UTC10h 15m
2026-07-02 DLH797 HKG → FRA Jul 2, 15:50 UTCJul 2, 16:10 UTC20m
2026-07-02 DLH796 FRA → HKG Jul 2, 06:51 UTCJul 2, 07:20 UTC29m
2026-07-01 DLH796 FRA → HKG Jul 1, 20:20 UTCJul 2, 00:05 UTC3h 45m
2026-07-01 DLH451 LAX → FRA Jul 1, 02:15 UTCJul 1, 12:05 UTC9h 50m
2026-06-30 DLH450 FRA → LAX Jun 30, 12:55 UTCJun 30, 23:40 UTC10h 45m
2026-06-29 DLH501 - Jun 29, 19:29 UTCJun 30, 06:10 UTC10h 41m
2026-06-28 DLH500 - Jun 28, 20:45 UTCJun 29, 07:59 UTC11h 15m
2026-06-28 DLH451 LAX → FRA Jun 28, 01:59 UTCJun 28, 12:29 UTC10h 30m
2026-06-27 DLH450 FRA → LAX Jun 27, 12:55 UTCJun 27, 23:45 UTC10h 50m
2026-06-26 DLH501 - Jun 26, 19:35 UTCJun 27, 06:05 UTC10h 30m
2026-06-25 DLH500 FRA → GIG Jun 25, 20:45 UTCJun 26, 07:50 UTC11h 5m
2026-06-25 DLH451 LAX → FRA Jun 25, 01:59 UTCJun 25, 12:10 UTC10h 10m
2026-06-24 DLH450 FRA → LAX Jun 24, 12:25 UTCJun 24, 23:24 UTC11h 0m
2026-06-23 DLH469 AUS → FRA Jun 23, 21:39 UTCJun 24, 06:45 UTC9h 5m
2026-06-23 DLH468 - Jun 23, 09:14 UTCJun 23, 19:19 UTC10h 5m
2026-06-21 DLH797 HKG → FRA Jun 21, 18:50 UTCJun 22, 04:34 UTC9h 45m
2026-06-21 DLH797 HKG → FRA Jun 21, 16:04 UTCJun 21, 16:19 UTC15m
2026-06-20 DLH796 FRA → HKG Jun 20, 20:25 UTCJun 21, 07:34 UTC11h 10m
2026-06-19 DLH729 - Jun 19, 23:19 UTCJun 20, 16:24 UTC17h 5m
2026-06-19 DLH729 - Jun 19, 15:04 UTCJun 20, 14:59 UTC23h 55m
2026-06-19 DLH728 - Jun 19, 14:04 UTCJun 20, 12:59 UTC22h 55m
2026-06-18 DLH752 FRA → HYD Jun 18, 11:45 UTCJun 19, 06:49 UTC19h 4m
2026-06-17 DLH753 - Jun 17, 13:05 UTCJun 18, 07:25 UTC18h 20m
2026-06-17 DLH752 FRA → HYD Jun 17, 12:10 UTCJun 18, 07:25 UTC19h 15m
2026-06-15 DLH797 HKG → FRA Jun 15, 18:40 UTCJun 16, 04:45 UTC10h 5m
2026-06-15 DLH797 HKG → FRA Jun 15, 16:04 UTCJun 15, 16:24 UTC20m
2026-06-15 DLH796 FRA → HKG Jun 15, 06:24 UTCJun 15, 07:10 UTC45m
2026-06-14 DLH796 FRA → HKG Jun 14, 20:05 UTCJun 14, 23:35 UTC3h 30m
2026-06-14 DLH451 LAX → FRA Jun 14, 02:00 UTCJun 14, 12:15 UTC10h 15m

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.

Mode-S 3C4A0C frequently asked

What is Mode-S code 3C4A0C?
3C4A0C is an ICAO 24-bit transponder address. Allocated to Germany.
Where is Mode-S 3C4A0C registered?
Mode-S code 3C4A0C is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A0C broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A0C, octal 17045014, decimal 3,951,116.
What flights does 3C4A0C operate?
Mode-S 3C4A0C has broadcast 20 distinct callsigns, including DLH796, DLH797, DLH729, DLH500, DLH728.