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sensors Mode-S transponder

3C664E

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRN · AIRBUS A-321

Hex
3C664E
Octal
17063116
Decimal
3,958,350
Country
DE
Tail
D-AIRN
Type
A321
No current signal · last broadcast 6h ago
Flights observed
402
Distinct callsigns
20
Country
DE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3C664E.

Country allocation

The ICAO 24-bit address 3C664E 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
DLH78H - 6 2026-07-09
DLH5RM Lufthansa 6 2026-06-16
DLH980 Lufthansa 5 2026-06-16
DLH26C Lufthansa 5 2026-06-16
DLH11Y Lufthansa 5 2026-06-16
DLH88P Lufthansa 4 2026-06-12
DLH74U - 4 2026-07-03
DLH6CF - 4 2026-06-20
DLH5CH Lufthansa 4 2026-05-01
DLH55U Lufthansa 4 2026-06-11
DLH37W - 4 2026-06-25
DLH2EW - 4 2026-06-20
DLH1TV - 4 2026-06-23
DLH02F - 4 2026-06-25
DLH9PL - 3 2026-07-10
DLH99F Lufthansa 3 2026-05-30
DLH982 - 3 2026-07-09
DLH8PP - 3 2026-07-05
DLH88H - 3 2026-07-08
DLH7EK - 3 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH1455 - Jul 14, 12:55 UTCJul 14, 14:45 UTC1h 50m
2026-07-14 DLH1454 - Jul 14, 09:35 UTCJul 14, 11:05 UTC1h 30m
2026-07-14 DLH92J OPO → FRA Jul 14, 05:10 UTCJul 14, 07:20 UTC2h 10m
2026-07-13 DLH44C FRA → OPO Jul 13, 19:30 UTCJul 13, 21:55 UTC2h 25m
2026-07-13 DLH44K - Jul 13, 15:50 UTCJul 13, 17:40 UTC1h 50m
2026-07-13 DLH14C FRA → MAD Jul 13, 11:45 UTCJul 13, 13:55 UTC2h 10m
2026-07-13 DLH6EN CPH → FRA Jul 13, 08:55 UTCJul 13, 10:05 UTC1h 10m
2026-07-13 DLH4HK FRA → CPH Jul 13, 06:40 UTCJul 13, 07:40 UTC1h 0m
2026-07-12 DLH3WJ - Jul 12, 17:25 UTCJul 12, 18:50 UTC1h 25m
2026-07-12 DLH5RX FRA → WAW Jul 12, 15:01 UTCJul 12, 16:20 UTC1h 20m
2026-07-12 DLH3RK MLA → FRA Jul 12, 11:10 UTCJul 12, 13:35 UTC2h 25m
2026-07-12 DLH4WE FRA → MLA Jul 12, 07:55 UTCJul 12, 10:05 UTC2h 10m
2026-07-12 DLH893 - Jul 12, 04:05 UTCJul 12, 06:01 UTC1h 55m
2026-07-11 DLH892 FRA → RIX Jul 11, 18:25 UTCJul 11, 20:20 UTC1h 55m
2026-07-11 DLH63H IBZ → FRA Jul 11, 15:00 UTCJul 11, 17:10 UTC2h 10m
2026-07-11 DLH71H FRA → IBZ Jul 11, 11:30 UTCJul 11, 13:45 UTC2h 15m
2026-07-11 DLH837 BLL → FRA Jul 11, 08:50 UTCJul 11, 09:55 UTC1h 5m
2026-07-11 DLH836 - Jul 11, 06:35 UTCJul 11, 07:40 UTC1h 5m
2026-07-11 DLH7P PRG → FRA Jul 11, 04:05 UTCJul 11, 04:55 UTC50m
2026-07-10 DLH5XY - Jul 10, 20:45 UTCJul 10, 21:25 UTC40m
2026-07-10 DLH6UL BUD → FRA Jul 10, 17:30 UTCJul 10, 18:55 UTC1h 25m
2026-07-10 DLH6HE - Jul 10, 15:05 UTCJul 10, 16:15 UTC1h 10m
2026-07-10 DLH5RL - Jul 10, 11:20 UTCJul 10, 13:35 UTC2h 15m
2026-07-10 DLH9YC - Jul 10, 08:35 UTCJul 10, 10:15 UTC1h 40m
2026-07-10 DLH9PL - Jul 10, 05:25 UTCJul 10, 06:55 UTC1h 30m
2026-07-09 DLH982 FRA → DUB Jul 9, 19:50 UTCJul 9, 21:30 UTC1h 40m
2026-07-09 DLH44K MAD → FRA Jul 9, 15:55 UTCJul 9, 17:50 UTC1h 55m
2026-07-09 DLH14C FRA → MAD Jul 9, 12:15 UTCJul 9, 14:20 UTC2h 5m
2026-07-09 DLH4P - Jul 9, 10:10 UTCJul 9, 10:55 UTC45m
2026-07-09 DLH4P FRA → PRG Jul 9, 08:20 UTCJul 9, 09:05 UTC45m
2026-07-09 DLH78H - Jul 9, 04:10 UTCJul 9, 06:15 UTC2h 5m
2026-07-08 DLH67K - Jul 8, 19:25 UTCJul 8, 21:25 UTC2h 0m
2026-07-08 DLH2F - Jul 8, 17:00 UTCJul 8, 17:45 UTC45m
2026-07-08 DLH88H FRA → CDG Jul 8, 14:55 UTCJul 8, 15:45 UTC50m
2026-07-08 DLH1RE TLL → FRA Jul 8, 11:20 UTCJul 8, 13:10 UTC1h 50m
2026-07-08 DLH880 - Jul 8, 08:10 UTCJul 8, 10:15 UTC2h 5m
2026-07-07 DLH3EK - Jul 7, 15:25 UTCJul 7, 16:55 UTC1h 30m
2026-07-07 DLH3NX FRA → OSL Jul 7, 11:45 UTCJul 7, 13:30 UTC1h 45m
2026-07-07 DLH4LX OSL → FRA Jul 7, 08:05 UTCJul 7, 09:40 UTC1h 35m
2026-07-07 DLH8CK FRA → OSL Jul 7, 05:05 UTCJul 7, 06:40 UTC1h 35m
2026-07-06 DLH963 - Jul 6, 17:10 UTCJul 6, 18:35 UTC1h 25m
2026-07-06 DLH2XH FRA → EDI Jul 6, 14:25 UTCJul 6, 16:10 UTC1h 45m
2026-07-06 DLH2XV - Jul 6, 10:45 UTCJul 6, 11:45 UTC1h 0m
2026-07-06 DLH2EP - Jul 6, 08:20 UTCJul 6, 09:25 UTC1h 5m
2026-07-06 DLH9PL DUB → FRA Jul 6, 05:25 UTCJul 6, 06:55 UTC1h 30m
2026-07-05 DLH982 - Jul 5, 19:35 UTCJul 5, 21:25 UTC1h 50m
2026-07-05 DLH4UP - Jul 5, 15:10 UTCJul 5, 17:40 UTC2h 30m
2026-07-05 DLH8PP FRA → MLA Jul 5, 12:00 UTCJul 5, 14:05 UTC2h 5m
2026-07-05 DLH7EK - Jul 5, 04:55 UTCJul 5, 05:40 UTC45m
2026-07-04 DLH1WP FRA → HAM Jul 4, 17:20 UTCJul 4, 18:05 UTC45m

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

Mode-S 3C664E frequently asked

What is Mode-S code 3C664E?
3C664E is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRN.
Where is Mode-S 3C664E registered?
Mode-S code 3C664E is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C664E broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C664E, octal 17063116, decimal 3,958,350.
What flights does 3C664E operate?
Mode-S 3C664E has broadcast 20 distinct callsigns, including DLH78H, DLH5RM, DLH980, DLH26C, DLH11Y.