Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3C664D

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRM · AIRBUS A-321

Hex
3C664D
Octal
17063115
Decimal
3,958,349
Country
DE
Tail
D-AIRM
Type
A321
No current signal · last broadcast 41m ago
Flights observed
442
Distinct callsigns
20
Country
DE
Last broadcast
41m ago

Last known position

Most recent position reported by Mode-S 3C664D.

Country allocation

The ICAO 24-bit address 3C664D 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
DLH9PL - 5 2026-07-07
DLH982 - 5 2026-07-06
DLH81H - 5 2026-07-10
DLH71X - 5 2026-07-05
DLH67K - 5 2026-07-13
DLH4LM - 4 2026-06-18
DLH4LC Lufthansa 4 2026-06-14
DLH4AR Lufthansa 4 2026-06-10
DLH3MA - 4 2026-06-18
DLH3EV - 4 2026-06-18
DLH309 Lufthansa 4 2026-06-10
DLH21X - 4 2026-07-05
DLH1RF Lufthansa 4 2026-06-14
DLH179 - 4 2026-06-18
DLH9ML Lufthansa 3 2026-05-26
DLH99F - 3 2026-06-19
DLH8WE - 3 2026-06-23
DLH8PP - 3 2026-06-24
DLH8MW - 3 2026-07-15
DLH885 - 3 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 DLH8VY - Jul 18, 19:20 UTCJul 18, 20:45 UTC1h 25m
2026-07-18 DLH1LA - Jul 18, 17:00 UTCJul 18, 18:10 UTC1h 10m
2026-07-18 DLH37W - Jul 18, 11:45 UTCJul 18, 13:40 UTC1h 55m
2026-07-18 DLH02F FRA → MAD Jul 18, 08:10 UTCJul 18, 10:20 UTC2h 10m
2026-07-18 DLH885 - Jul 18, 03:20 UTCJul 18, 05:30 UTC2h 10m
2026-07-17 DLH884 FRA → TLL Jul 17, 19:35 UTCJul 17, 21:25 UTC1h 50m
2026-07-17 DLH7A - Jul 17, 17:35 UTCJul 17, 18:19 UTC45m
2026-07-17 DLH3CT FRA → AMS Jul 17, 15:29 UTCJul 17, 16:15 UTC45m
2026-07-17 DLH1299 - Jul 17, 11:35 UTCJul 17, 14:04 UTC2h 30m
2026-07-17 DLH1298 - Jul 17, 07:40 UTCJul 17, 10:00 UTC2h 20m
2026-07-17 DLH1JT - Jul 17, 03:39 UTCJul 17, 05:45 UTC2h 5m
2026-07-16 DLH1UT FRA → SOF Jul 16, 18:15 UTCJul 16, 20:15 UTC2h 0m
2026-07-16 DLH37W - Jul 16, 12:00 UTCJul 16, 13:49 UTC1h 50m
2026-07-16 DLH02F FRA → MAD Jul 16, 08:10 UTCJul 16, 10:25 UTC2h 15m
2026-07-16 DLH333 VCE → FRA Jul 16, 04:55 UTCJul 16, 06:05 UTC1h 10m
2026-07-15 DLH1RH - Jul 15, 19:55 UTCJul 15, 20:55 UTC1h 0m
2026-07-15 DLH44K - Jul 15, 15:35 UTCJul 15, 17:30 UTC1h 55m
2026-07-15 DLH14C FRA → MAD Jul 15, 11:50 UTCJul 15, 14:00 UTC2h 10m
2026-07-15 DLH7VV - Jul 15, 09:20 UTCJul 15, 10:20 UTC1h 0m
2026-07-15 DLH8MW FRA → VCE Jul 15, 07:05 UTCJul 15, 08:05 UTC1h 0m
2026-07-14 DLH5RM DUB → FRA Jul 14, 17:20 UTCJul 14, 18:55 UTC1h 35m
2026-07-14 DLH980 FRA → DUB Jul 14, 14:25 UTCJul 14, 16:00 UTC1h 35m
2026-07-14 DLH9KK BER → FRA Jul 14, 10:40 UTCJul 14, 11:30 UTC50m
2026-07-14 DLH3WU - Jul 14, 08:55 UTCJul 14, 09:35 UTC40m
2026-07-14 DLH78H - Jul 14, 04:20 UTCJul 14, 06:10 UTC1h 50m
2026-07-13 DLH67K - Jul 13, 19:35 UTCJul 13, 21:40 UTC2h 5m
2026-07-13 DLH875 BGO → FRA Jul 13, 15:45 UTCJul 13, 17:25 UTC1h 40m
2026-07-13 DLH8WY - Jul 13, 12:55 UTCJul 13, 14:30 UTC1h 35m
2026-07-13 DLH1101 - Jul 13, 09:30 UTCJul 13, 11:00 UTC1h 30m
2026-07-13 DLH1100 - Jul 13, 06:35 UTCJul 13, 08:15 UTC1h 40m
2026-07-13 DLH049 HAJ → FRA Jul 13, 04:20 UTCJul 13, 05:01 UTC40m
2026-07-12 DLH048 FRA → HAJ Jul 12, 20:40 UTCJul 12, 21:10 UTC30m
2026-07-12 DLH963 EDI → FRA Jul 12, 17:50 UTCJul 12, 19:15 UTC1h 25m
2026-07-12 DLH2XH FRA → EDI Jul 12, 14:55 UTCJul 12, 16:25 UTC1h 30m
2026-07-12 DLH9EJ - Jul 12, 11:20 UTCJul 12, 13:35 UTC2h 15m
2026-07-12 DLH5MV - Jul 12, 08:15 UTCJul 12, 10:01 UTC1h 45m
2026-07-12 DLH72K LIS → FRA Jul 12, 04:20 UTCJul 12, 06:45 UTC2h 25m
2026-07-11 DLH34J FRA → LIS Jul 11, 18:10 UTCJul 11, 21:00 UTC2h 50m
2026-07-10 DLH3HT CPH → FRA Jul 10, 17:55 UTCJul 10, 19:05 UTC1h 10m
2026-07-10 DLH830 FRA → CPH Jul 10, 15:20 UTCJul 10, 16:20 UTC1h 0m
2026-07-10 DLH6HH - Jul 10, 12:15 UTCJul 10, 13:20 UTC1h 5m
2026-07-10 DLH2LN FRA → LJU Jul 10, 10:20 UTCJul 10, 11:15 UTC55m
2026-07-10 DLH81H MAD → FRA Jul 10, 06:40 UTCJul 10, 08:40 UTC2h 0m
2026-07-09 DLH67K FRA → MAD Jul 9, 19:30 UTCJul 9, 21:35 UTC2h 5m
2026-07-09 DLH3P PRG → FRA Jul 9, 16:50 UTCJul 9, 17:35 UTC45m
2026-07-09 DLH2VV FRA → PRG Jul 9, 14:50 UTCJul 9, 15:30 UTC40m
2026-07-09 DLH4KV HEL → FRA Jul 9, 11:25 UTCJul 9, 13:25 UTC2h 0m
2026-07-09 DLH4NH - Jul 9, 08:10 UTCJul 9, 10:25 UTC2h 15m
2026-07-09 DLH035 HAM → FRA Jul 9, 05:45 UTCJul 9, 06:25 UTC40m
2026-07-08 DLH1WL FRA → HAM Jul 8, 20:00 UTCJul 8, 20:45 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-AIRM page for operator, model, and routing details .

Mode-S 3C664D frequently asked

What is Mode-S code 3C664D?
3C664D is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRM.
Where is Mode-S 3C664D registered?
Mode-S code 3C664D is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C664D broadcasting right now?
No active broadcast right now. Last signal was 41m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C664D, octal 17063115, decimal 3,958,349.
What flights does 3C664D operate?
Mode-S 3C664D has broadcast 20 distinct callsigns, including DLH9PL, DLH982, DLH81H, DLH71X, DLH67K.