Apparatus

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sensors Mode-S transponder

3C6749

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIZI · AIRBUS A-320

Hex
3C6749
Octal
17063511
Decimal
3,958,601
Country
DE
Tail
D-AIZI
Type
A320
No current signal · last broadcast 4h ago
Flights observed
568
Distinct callsigns
20
Country
DE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 3C6749.

Country allocation

The ICAO 24-bit address 3C6749 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
DLH8RX - 5 2026-07-13
DLH7YA Lufthansa 5 2026-06-14
DLH7JW - 5 2026-06-15
DLH6P - 5 2026-07-13
DLH5P Lufthansa 5 2026-06-12
DLH3KV - 5 2026-07-15
DLH2RW Lufthansa 5 2026-06-12
DLH2HY - 5 2026-07-14
DLH007 - 5 2026-07-15
DLH8NK - 4 2026-07-05
DLH899 Lufthansa 4 2026-05-26
DLH898 Lufthansa 4 2026-05-25
DLH897 - 4 2026-07-14
DLH896 - 4 2026-07-14
DLH7EL Lufthansa 4 2026-06-14
DLH7C - 4 2026-06-26
DLH5NP - 4 2026-07-07
DLH4EF - 4 2026-07-15
DLH2F - 4 2026-07-16
DLH273 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DLH2KK FRA → MUC Jul 17, 21:05 UTCJul 17, 21:39 UTC35m
2026-07-17 DLH9AV - Jul 17, 15:00 UTCJul 17, 16:34 UTC1h 35m
2026-07-17 DLH7XP - Jul 17, 11:35 UTCJul 17, 13:00 UTC1h 25m
2026-07-17 DLH1TT BUD → FRA Jul 17, 08:25 UTCJul 17, 09:40 UTC1h 15m
2026-07-17 DLH5PP BSL → MUC Jul 17, 05:45 UTCJul 17, 06:50 UTC1h 5m
2026-07-16 DLH2F - Jul 16, 17:14 UTCJul 16, 18:05 UTC50m
2026-07-16 DLH88H FRA → CDG Jul 16, 15:05 UTCJul 16, 16:00 UTC55m
2026-07-16 DLH3CJ - Jul 16, 10:55 UTCJul 16, 12:14 UTC1h 20m
2026-07-16 DLH7AA - Jul 16, 08:30 UTCJul 16, 09:45 UTC1h 15m
2026-07-16 DLH6VN NUE → FRA Jul 16, 06:35 UTCJul 16, 07:10 UTC35m
2026-07-16 DLH5KA FRA → NUE Jul 16, 05:20 UTCJul 16, 05:40 UTC20m
2026-07-15 DLH077 DUS → FRA Jul 15, 16:40 UTCJul 15, 17:05 UTC25m
2026-07-15 DLH076 FRA → DUS Jul 15, 15:20 UTCJul 15, 15:45 UTC25m
2026-07-15 DLH2YA - Jul 15, 12:45 UTCJul 15, 14:15 UTC1h 30m
2026-07-15 DLH4YE FRA → WAW Jul 15, 10:20 UTCJul 15, 11:35 UTC1h 15m
2026-07-15 DLH007 HAM → FRA Jul 15, 08:10 UTCJul 15, 09:05 UTC55m
2026-07-15 DLH4EF FRA → HAM Jul 15, 06:10 UTCJul 15, 06:50 UTC40m
2026-07-15 DLH3KV - Jul 15, 04:10 UTCJul 15, 05:00 UTC50m
2026-07-14 DLH2HY - Jul 14, 20:15 UTCJul 14, 20:50 UTC35m
2026-07-14 DLH897 - Jul 14, 16:45 UTCJul 14, 18:40 UTC1h 55m
2026-07-14 DLH896 FRA → VNO Jul 14, 14:15 UTCJul 14, 15:55 UTC1h 40m
2026-07-14 DLH1101 - Jul 14, 09:30 UTCJul 14, 11:00 UTC1h 30m
2026-07-14 DLH1100 - Jul 14, 06:35 UTCJul 14, 08:15 UTC1h 40m
2026-07-14 DLH3KV DRS → FRA Jul 14, 04:15 UTCJul 14, 05:05 UTC50m
2026-07-13 DLH2HY - Jul 13, 20:30 UTCJul 13, 21:05 UTC35m
2026-07-13 DLH2PV HAM → FRA Jul 13, 17:10 UTCJul 13, 18:05 UTC55m
2026-07-13 DLH4XK FRA → HAM Jul 13, 15:30 UTCJul 13, 16:10 UTC40m
2026-07-13 DLH2YA - Jul 13, 12:40 UTCJul 13, 14:10 UTC1h 30m
2026-07-13 DLH4YE FRA → WAW Jul 13, 10:30 UTCJul 13, 11:45 UTC1h 15m
2026-07-13 DLH6P PRG → FRA Jul 13, 07:20 UTCJul 13, 08:10 UTC50m
2026-07-13 DLH8RX FRA → PRG Jul 13, 05:40 UTCJul 13, 06:20 UTC40m
2026-07-12 DLH6UL BUD → FRA Jul 12, 17:40 UTCJul 12, 19:01 UTC1h 20m
2026-07-12 DLH6HE FRA → BUD Jul 12, 15:10 UTCJul 12, 16:30 UTC1h 20m
2026-07-12 DLH4YC - Jul 12, 12:45 UTCJul 12, 13:55 UTC1h 10m
2026-07-12 DLH6UT - Jul 12, 10:20 UTCJul 12, 11:35 UTC1h 15m
2026-07-12 DLH247 MXP → FRA Jul 12, 07:15 UTCJul 12, 08:10 UTC55m
2026-07-12 DLH4YF FRA → MXP Jul 12, 05:10 UTCJul 12, 06:01 UTC50m
2026-07-11 DLH2F - Jul 11, 16:50 UTCJul 11, 17:35 UTC45m
2026-07-11 DLH88H FRA → CDG Jul 11, 14:50 UTCJul 11, 15:45 UTC55m
2026-07-11 DLH2TU KRK → FRA Jul 11, 12:10 UTCJul 11, 13:30 UTC1h 20m
2026-07-11 DLH6HW FRA → KRK Jul 11, 09:50 UTCJul 11, 11:05 UTC1h 15m
2026-07-11 DLH247 - Jul 11, 07:10 UTCJul 11, 08:05 UTC55m
2026-07-11 DLH4YF FRA → MXP Jul 11, 05:10 UTCJul 11, 06:05 UTC55m
2026-07-10 DLH3P PRG → FRA Jul 10, 18:10 UTCJul 10, 19:00 UTC50m
2026-07-10 DLH2VV FRA → PRG Jul 10, 16:35 UTCJul 10, 17:15 UTC40m
2026-07-10 DLH3PX LIN → FRA Jul 10, 13:45 UTCJul 10, 14:40 UTC55m
2026-07-10 DLH5LY FRA → LIN Jul 10, 11:55 UTCJul 10, 12:45 UTC50m
2026-07-10 DLH9C ZRH → FRA Jul 10, 10:00 UTCJul 10, 10:40 UTC40m
2026-07-10 DLH1KJ FRA → ZRH Jul 10, 08:05 UTCJul 10, 08:50 UTC45m
2026-07-10 DLH4WU CPH → FRA Jul 10, 04:50 UTCJul 10, 06:00 UTC1h 10m

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

Mode-S 3C6749 frequently asked

What is Mode-S code 3C6749?
3C6749 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIZI.
Where is Mode-S 3C6749 registered?
Mode-S code 3C6749 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6749 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6749, octal 17063511, decimal 3,958,601.
What flights does 3C6749 operate?
Mode-S 3C6749 has broadcast 20 distinct callsigns, including DLH8RX, DLH7YA, DLH7JW, DLH6P, DLH5P.