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sensors Mode-S transponder

3C6664

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AISD · AIRBUS A-321

Hex
3C6664
Octal
17063144
Decimal
3,958,372
Country
DE
Tail
D-AISD
Type
A321
Broadcasting now · callsign DLH66Y · 29,950 ft
Flights observed
439
Distinct callsigns
20
Country
DE
Last broadcast
22m ago

Current position

3C6664 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C6664 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
DLH8N - 9 2026-07-13
DLH4NF - 9 2026-07-13
DLH9WE - 7 2026-07-12
DLH9E - 7 2026-06-24
DLH7YW - 7 2026-07-09
DLH4YV - 7 2026-07-09
DLH1MK - 7 2026-06-24
DLH1835 - 7 2026-07-04
DLH1834 - 7 2026-07-04
DLH9AC - 6 2026-07-12
DLH3WH Lufthansa 6 2026-06-19
DLH3AK Lufthansa 6 2026-06-19
DLH1687 - 6 2026-07-06
DLH1686 - 6 2026-07-06
DLH8PL - 5 2026-07-10
DLH7FM - 5 2026-06-29
DLH2N - 5 2026-07-01
DLH1JF - 5 2026-06-28
DLH1E - 5 2026-07-10
DLH1713 - 5 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH66Y - Jul 14, 16:50 UTCJul 14, 17:00 UTC10m
2026-07-14 DLH86E - Jul 14, 14:15 UTCJul 14, 15:20 UTC1h 5m
2026-07-14 DLH1745 - Jul 14, 10:40 UTCJul 14, 12:10 UTC1h 30m
2026-07-14 DLH1744 - Jul 14, 07:00 UTCJul 14, 08:40 UTC1h 40m
2026-07-14 DLH4LY - Jul 14, 04:10 UTCJul 14, 05:10 UTC1h 0m
2026-07-13 DLH4KX - Jul 13, 21:00 UTCJul 13, 21:55 UTC55m
2026-07-13 DLH9PK - Jul 13, 16:55 UTCJul 13, 19:20 UTC2h 25m
2026-07-13 DLH3XV MUC → HEL Jul 13, 13:45 UTCJul 13, 15:45 UTC2h 0m
2026-07-13 DLH4NF - Jul 13, 11:25 UTCJul 13, 12:15 UTC50m
2026-07-13 DLH8N MUC → BER Jul 13, 09:35 UTCJul 13, 10:25 UTC50m
2026-07-13 DLH96V - Jul 13, 06:10 UTCJul 13, 07:45 UTC1h 35m
2026-07-12 DLH24Y MUC → BCN Jul 12, 18:35 UTCJul 12, 20:20 UTC1h 45m
2026-07-12 DLH9AC DBV → MUC Jul 12, 15:10 UTCJul 12, 16:35 UTC1h 25m
2026-07-12 DLH9WE MUC → DBV Jul 12, 13:05 UTCJul 12, 14:15 UTC1h 10m
2026-07-12 DLH5CF - Jul 12, 09:50 UTCJul 12, 11:25 UTC1h 35m
2026-07-12 DLH6EV - Jul 12, 07:10 UTCJul 12, 08:40 UTC1h 30m
2026-07-12 DLH2FL ATH → MUC Jul 12, 03:20 UTCJul 12, 05:30 UTC2h 10m
2026-07-11 DLH5AE MUC → ATH Jul 11, 18:30 UTCJul 11, 20:35 UTC2h 5m
2026-07-11 DLH55E - Jul 11, 12:55 UTCJul 11, 15:25 UTC2h 30m
2026-07-11 DLH88V - Jul 11, 08:55 UTCJul 11, 11:35 UTC2h 40m
2026-07-11 DLH5E HAM → MUC Jul 11, 05:31 UTCJul 11, 06:30 UTC1h 0m
2026-07-10 DLH3EY MUC → HAM Jul 10, 19:50 UTCJul 10, 20:50 UTC1h 0m
2026-07-10 DLH3YE CGN → MUC Jul 10, 16:40 UTCJul 10, 17:20 UTC40m
2026-07-10 DLH2TT - Jul 10, 14:40 UTCJul 10, 15:25 UTC45m
2026-07-10 DLH4NF - Jul 10, 11:50 UTCJul 10, 12:40 UTC50m
2026-07-10 DLH8N MUC → BER Jul 10, 09:40 UTCJul 10, 10:30 UTC50m
2026-07-10 DLH1E HAM → MUC Jul 10, 07:25 UTCJul 10, 08:30 UTC1h 5m
2026-07-10 DLH8PL MUC → HAM Jul 10, 04:55 UTCJul 10, 05:55 UTC1h 0m
2026-07-09 DLH8UC - Jul 9, 16:55 UTCJul 9, 18:45 UTC1h 50m
2026-07-09 DLH1EJ - Jul 9, 14:10 UTCJul 9, 15:35 UTC1h 25m
2026-07-09 DLH4YV BUD → MUC Jul 9, 12:00 UTCJul 9, 13:05 UTC1h 5m
2026-07-09 DLH7YW MUC → BUD Jul 9, 09:55 UTCJul 9, 10:50 UTC55m
2026-07-07 DLH03W - Jul 7, 17:05 UTCJul 7, 19:00 UTC1h 55m
2026-07-07 DLH82A - Jul 7, 14:15 UTCJul 7, 15:50 UTC1h 35m
2026-07-07 DLH1745 - Jul 7, 10:20 UTCJul 7, 12:20 UTC2h 0m
2026-07-07 DLH1744 - Jul 7, 07:10 UTCJul 7, 08:45 UTC1h 35m
2026-07-06 DLH1687 - Jul 6, 06:35 UTCJul 6, 07:50 UTC1h 15m
2026-07-06 DLH1686 - Jul 6, 04:40 UTCJul 6, 05:45 UTC1h 5m
2026-07-05 DLH7HV - Jul 5, 18:40 UTCJul 5, 19:35 UTC55m
2026-07-05 DLH9LY - Jul 5, 16:45 UTCJul 5, 17:40 UTC55m
2026-07-05 DLH6RM - Jul 5, 14:15 UTCJul 5, 15:25 UTC1h 10m
2026-07-05 DLH1UW - Jul 5, 11:45 UTCJul 5, 12:50 UTC1h 5m
2026-07-05 DLH2281 - Jul 5, 09:05 UTCJul 5, 10:15 UTC1h 10m
2026-07-05 DLH2280 - Jul 5, 07:10 UTCJul 5, 08:10 UTC1h 0m
2026-07-05 DLH3EM - Jul 5, 04:30 UTCJul 5, 05:25 UTC55m
2026-07-04 DLH7KJ - Jul 4, 20:15 UTCJul 4, 21:10 UTC55m
2026-07-04 DLH9M - Jul 4, 17:35 UTCJul 4, 18:30 UTC55m
2026-07-04 DLH9KL MUC → HAM Jul 4, 15:25 UTCJul 4, 16:30 UTC1h 5m
2026-07-04 DLH1835 - Jul 4, 10:25 UTCJul 4, 13:00 UTC2h 35m
2026-07-04 DLH1834 - Jul 4, 06:25 UTCJul 4, 09:00 UTC2h 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-AISD page for operator, model, and routing details .

Mode-S 3C6664 frequently asked

What is Mode-S code 3C6664?
3C6664 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AISD.
Where is Mode-S 3C6664 registered?
Mode-S code 3C6664 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6664 broadcasting right now?
Yes. Mode-S 3C6664 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6664, octal 17063144, decimal 3,958,372.
What flights does 3C6664 operate?
Mode-S 3C6664 has broadcast 20 distinct callsigns, including DLH8N, DLH4NF, DLH9WE, DLH9E, DLH7YW.