Apparatus

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sensors Mode-S transponder

3C7428

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AMAH · BOEING 737 MAX 8

Hex
3C7428
Octal
17072050
Decimal
3,961,896
Country
DE
Tail
D-AMAH
Type
B38M
No current signal · last broadcast Jul 26, 21:05 UTC
Flights observed
388
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 21:05 UTC

Last known position

Most recent position reported by Mode-S 3C7428.

Country allocation

The ICAO 24-bit address 3C7428 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
TUI98Y - 10 2026-07-13
TUI6NL - 9 2026-07-13
TUI3WL - 9 2026-06-27
TUI99J - 8 2026-07-15
TUI7CX - 8 2026-07-13
TUI5E - 8 2026-07-05
TUI1KN - 8 2026-06-27
TUI9MD - 7 2026-07-04
TUI94G TUIfly 7 2026-07-21
TUI7VE - 7 2026-07-04
TUI3GA - 7 2026-07-13
TUI1A - 7 2026-07-05
TUI7WT - 6 2026-07-07
TUI6DT - 6 2026-07-14
TUI58V - 6 2026-07-15
TUI3WM - 6 2026-07-06
TUI3LN TUIfly 6 2026-07-25
TUI3AY - 6 2026-07-06
TUI2HE - 6 2026-07-18
TUI1FD TUIfly 6 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TUI73C SSH → DUS Jul 26, 10:30 UTCJul 26, 21:05 UTC10h 35m
2026-07-26 TUI2MT FRA → LPA Jul 26, 07:45 UTCJul 26, 09:00 UTC1h 15m
2026-07-26 TUI5LB DUS → TRS Jul 26, 05:10 UTCJul 26, 06:25 UTC1h 15m
2026-07-25 TUI3LN DUS → FUE Jul 25, 04:20 UTCJul 25, 13:50 UTC9h 30m
2026-07-24 TUI89H - Jul 24, 17:55 UTCJul 24, 21:20 UTC3h 25m
2026-07-24 TUI6YJ DUS → HER Jul 24, 13:40 UTCJul 24, 16:25 UTC2h 45m
2026-07-24 TUI96N DLM → DUS Jul 24, 08:45 UTCJul 24, 12:05 UTC3h 20m
2026-07-24 TUI86A HAJ → DLM Jul 24, 04:30 UTCJul 24, 07:15 UTC2h 45m
2026-07-23 TUI90X OPO → HAJ Jul 23, 17:50 UTCJul 23, 20:25 UTC2h 35m
2026-07-23 TUI1PC - Jul 23, 13:55 UTCJul 23, 16:20 UTC2h 25m
2026-07-23 TUI80J XRY → HAJ Jul 23, 08:00 UTCJul 23, 10:55 UTC2h 55m
2026-07-23 TUI6AV RHO → HAJ Jul 23, 03:55 UTCJul 23, 06:45 UTC2h 50m
2026-07-22 TUI20K ACE → HAJ Jul 22, 18:00 UTCJul 22, 21:50 UTC3h 50m
2026-07-22 TUI3KD HAJ → ACE Jul 22, 12:20 UTCJul 22, 16:20 UTC4h 0m
2026-07-22 TUI3YJ - Jul 22, 03:25 UTCJul 22, 10:25 UTC7h 0m
2026-07-21 TUI94G RMF → FRA Jul 21, 10:20 UTCJul 21, 20:40 UTC10h 20m
2026-07-21 TUI8DB CFU → FRA Jul 21, 06:40 UTCJul 21, 08:45 UTC2h 5m
2026-07-21 TUI76M FRA → CFU Jul 21, 03:15 UTCJul 21, 04:55 UTC1h 40m
2026-07-20 TUI9WT HAJ → XRY Jul 20, 04:30 UTCJul 20, 18:45 UTC14h 15m
2026-07-19 TUI81V ACE → FRA Jul 19, 16:55 UTCJul 19, 20:45 UTC3h 50m
2026-07-19 TUI1FY - Jul 19, 11:15 UTCJul 19, 15:10 UTC3h 55m
2026-07-19 TUI6JG MAH → FRA Jul 19, 07:00 UTCJul 19, 08:40 UTC1h 40m
2026-07-19 TUI87J FRA → MAH Jul 19, 03:40 UTCJul 19, 05:30 UTC1h 50m
2026-07-18 TUI2HE FRA → FRA Jul 18, 10:15 UTCJul 18, 19:25 UTC9h 10m
2026-07-18 TUI8DB - Jul 18, 06:35 UTCJul 18, 08:35 UTC2h 0m
2026-07-18 TUI76M - Jul 18, 03:10 UTCJul 18, 04:45 UTC1h 35m
2026-07-17 TUI7NX - Jul 17, 16:59 UTCJul 17, 20:20 UTC3h 20m
2026-07-17 TUI2HE - Jul 17, 11:10 UTCJul 17, 15:05 UTC3h 55m
2026-07-17 TUI1FA GPA → FRA Jul 17, 06:40 UTCJul 17, 08:49 UTC2h 10m
2026-07-17 TUI5JN FRA → GPA Jul 17, 03:05 UTCJul 17, 04:59 UTC1h 55m
2026-07-16 TUI69E FRA → FRA Jul 16, 10:20 UTCJul 16, 20:00 UTC9h 40m
2026-07-16 TUI6JG - Jul 16, 06:55 UTCJul 16, 08:30 UTC1h 35m
2026-07-16 TUI87J FRA → MAH Jul 16, 03:50 UTCJul 16, 05:30 UTC1h 40m
2026-07-15 TUI7NX - Jul 15, 17:35 UTCJul 15, 21:00 UTC3h 25m
2026-07-15 TUI2HE - Jul 15, 11:50 UTCJul 15, 16:00 UTC4h 10m
2026-07-15 TUI58V RHO → FRA Jul 15, 06:40 UTCJul 15, 10:00 UTC3h 20m
2026-07-15 TUI99J HAJ → RHO Jul 15, 02:35 UTCJul 15, 05:25 UTC2h 50m
2026-07-14 TUI42V IBZ → HAJ Jul 14, 15:50 UTCJul 14, 18:10 UTC2h 20m
2026-07-14 TUI5YJ - Jul 14, 12:20 UTCJul 14, 14:40 UTC2h 20m
2026-07-14 TUI6DT RHO → HAJ Jul 14, 07:30 UTCJul 14, 10:50 UTC3h 20m
2026-07-14 TUI99J HAJ → RHO Jul 14, 03:00 UTCJul 14, 05:55 UTC2h 55m
2026-07-13 TUI3GA - Jul 13, 19:00 UTCJul 13, 22:40 UTC3h 40m
2026-07-13 TUI6NL - Jul 13, 12:50 UTCJul 13, 17:20 UTC4h 30m
2026-07-13 TUI98Y - Jul 13, 08:25 UTCJul 13, 11:25 UTC3h 0m
2026-07-13 TUI7CX - Jul 13, 04:00 UTCJul 13, 06:40 UTC2h 40m
2026-07-12 TUI6DT RHO → HAJ Jul 12, 17:15 UTCJul 12, 20:20 UTC3h 5m
2026-07-12 TUI99J - Jul 12, 12:45 UTCJul 12, 15:40 UTC2h 55m
2026-07-12 TUI7JB - Jul 12, 08:30 UTCJul 12, 11:20 UTC2h 50m
2026-07-12 TUI7BG DUS → FAO Jul 12, 04:25 UTCJul 12, 07:20 UTC2h 55m
2026-07-11 TUI6G LPA → DUS Jul 11, 16:55 UTCJul 11, 20:30 UTC3h 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-AMAH page for operator, model, and routing details .

Mode-S 3C7428 frequently asked

What is Mode-S code 3C7428?
3C7428 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AMAH.
Where is Mode-S 3C7428 registered?
Mode-S code 3C7428 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C7428 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C7428, octal 17072050, decimal 3,961,896.
What flights does 3C7428 operate?
Mode-S 3C7428 has broadcast 20 distinct callsigns, including TUI98Y, TUI6NL, TUI3WL, TUI99J, TUI7CX.