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sensors Mode-S transponder

3C664C

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRL · AIRBUS A-321

Hex
3C664C
Octal
17063114
Decimal
3,958,348
Country
DE
Tail
D-AIRL
Type
A321
No current signal · last broadcast Jul 26, 19:40 UTC
Flights observed
468
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 19:40 UTC

Last known position

Most recent position reported by Mode-S 3C664C.

Country allocation

The ICAO 24-bit address 3C664C 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
DLH804 - 5 2026-07-20
DLH7LY - 5 2026-07-20
DLH78H - 5 2026-07-01
DLH6CF - 5 2026-06-26
DLH4WE Lufthansa 5 2026-05-15
DLH11A Lufthansa 5 2026-07-19
DLH04U Lufthansa 5 2026-07-18
DLH8PP - 4 2026-06-29
DLH8MW - 4 2026-06-20
DLH7VV - 4 2026-06-20
DLH67K - 4 2026-06-30
DLH62F Lufthansa 4 2026-05-24
DLH4UP - 4 2026-06-29
DLH4LC - 4 2026-07-14
DLH3RK Lufthansa 4 2026-05-15
DLH306 - 4 2026-07-15
DLH2EW - 4 2026-06-26
DLH1WL - 4 2026-07-16
DLH1RF - 4 2026-07-14
DLH1456 - 4 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH1WP FRA → HAM Jul 26, 18:45 UTCJul 26, 19:30 UTC45m
2026-07-26 DLH2XC FRA → ATH Jul 26, 16:00 UTCJul 26, 16:40 UTC40m
2026-07-26 DLH192 FRA → BER Jul 26, 14:00 UTCJul 26, 14:50 UTC50m
2026-07-26 DLH21P PMI → FRA Jul 26, 10:15 UTCJul 26, 12:00 UTC1h 45m
2026-07-26 DLH68X FRA → PMI Jul 26, 07:20 UTCJul 26, 09:00 UTC1h 40m
2026-07-25 DLH5RM FRA → HAM Jul 25, 17:00 UTCJul 25, 18:30 UTC1h 30m
2026-07-25 DLH980 FRA → DUB Jul 25, 14:05 UTCJul 25, 15:40 UTC1h 35m
2026-07-25 DLH2XV EDI → FRA Jul 25, 11:00 UTCJul 25, 11:55 UTC55m
2026-07-25 DLH2EP FRA → CPH Jul 25, 08:45 UTCJul 25, 09:50 UTC1h 5m
2026-07-25 DLH3HP FRA → DRS Jul 25, 04:25 UTCJul 25, 07:00 UTC2h 35m
2026-07-24 DLH8AH BHX → MUC Jul 24, 18:10 UTCJul 24, 20:20 UTC2h 10m
2026-07-24 DLH3EK - Jul 24, 15:05 UTCJul 24, 16:35 UTC1h 30m
2026-07-24 DLH3NX MUC → LHR Jul 24, 12:20 UTCJul 24, 14:05 UTC1h 45m
2026-07-24 DLH3PF MUC → FRA Jul 24, 09:05 UTCJul 24, 10:35 UTC1h 30m
2026-07-24 DLH9LL MUC → CGN Jul 24, 05:40 UTCJul 24, 06:55 UTC1h 15m
2026-07-23 DLH323 NAP → FRA Jul 23, 12:00 UTCJul 23, 14:00 UTC2h 0m
2026-07-23 DLH322 FRA → NAP Jul 23, 06:45 UTCJul 23, 08:20 UTC1h 35m
2026-07-23 DLH049 HAJ → FRA Jul 23, 04:10 UTCJul 23, 04:40 UTC30m
2026-07-22 DLH048 FRA → HAJ Jul 22, 20:25 UTCJul 22, 21:05 UTC40m
2026-07-22 DLH99M GRZ → FRA Jul 22, 16:05 UTCJul 22, 18:15 UTC2h 10m
2026-07-22 DLH93V - Jul 22, 12:40 UTCJul 22, 14:50 UTC2h 10m
2026-07-22 DLH1UL - Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-22 DLH1JT MUC → LHR Jul 22, 04:00 UTCJul 22, 10:25 UTC6h 25m
2026-07-21 DLH1UT MAN → MUC Jul 21, 18:05 UTCJul 21, 19:55 UTC1h 50m
2026-07-21 DLH43U OPO → FRA Jul 21, 11:40 UTCJul 21, 13:55 UTC2h 15m
2026-07-21 DLH82V FRA → OPO Jul 21, 08:00 UTCJul 21, 10:10 UTC2h 10m
2026-07-21 DLH9FW - Jul 21, 05:10 UTCJul 21, 05:50 UTC40m
2026-07-20 DLH7EC MUC → DUS Jul 20, 18:35 UTCJul 20, 19:15 UTC40m
2026-07-20 DLH7LY ARN → FRA Jul 20, 15:15 UTCJul 20, 17:00 UTC1h 45m
2026-07-20 DLH804 FRA → ARN Jul 20, 12:10 UTCJul 20, 13:55 UTC1h 45m
2026-07-20 DLH3PF MUC → FRA Jul 20, 08:50 UTCJul 20, 10:15 UTC1h 25m
2026-07-20 DLH9LL - Jul 20, 05:35 UTCJul 20, 06:55 UTC1h 20m
2026-07-19 DLH3WJ MUC → LHR Jul 19, 17:40 UTCJul 19, 19:00 UTC1h 20m
2026-07-19 DLH5RX FRA → WAW Jul 19, 15:05 UTCJul 19, 16:35 UTC1h 30m
2026-07-19 DLH9LX FRA → BHX Jul 19, 11:20 UTCJul 19, 12:55 UTC1h 35m
2026-07-19 DLH1TN FRA → OSL Jul 19, 08:40 UTCJul 19, 10:15 UTC1h 35m
2026-07-19 DLH11A MUC → FUE Jul 19, 04:20 UTCJul 19, 06:15 UTC1h 55m
2026-07-18 DLH04U BOD → BOD Jul 18, 19:25 UTCJul 18, 21:20 UTC1h 55m
2026-07-18 DLH52J - Jul 18, 13:40 UTCJul 18, 14:45 UTC1h 5m
2026-07-18 DLH44T FRA → NCE Jul 18, 10:45 UTCJul 18, 12:10 UTC1h 25m
2026-07-18 DLH1LL - Jul 18, 07:20 UTCJul 18, 08:00 UTC40m
2026-07-18 DLH9KX FRA → HAM Jul 18, 05:30 UTCJul 18, 06:15 UTC45m
2026-07-17 DLH42Y LIS → FRA Jul 17, 17:40 UTCJul 17, 19:55 UTC2h 15m
2026-07-17 DLH03H FRA → LIS Jul 17, 12:40 UTCJul 17, 15:40 UTC3h 0m
2026-07-17 DLH035 - Jul 17, 06:15 UTCJul 17, 07:00 UTC45m
2026-07-16 DLH1WL FRA → HAM Jul 16, 19:50 UTCJul 16, 20:29 UTC40m
2026-07-16 DLH81J - Jul 16, 16:19 UTCJul 16, 18:15 UTC1h 55m
2026-07-16 DLH66T - Jul 16, 13:00 UTCJul 16, 15:05 UTC2h 5m
2026-07-16 DLH7F - Jul 16, 10:20 UTCJul 16, 10:59 UTC40m
2026-07-16 DLH33M FRA → CDG Jul 16, 08:15 UTCJul 16, 09:10 UTC55m

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

Mode-S 3C664C frequently asked

What is Mode-S code 3C664C?
3C664C is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRL.
Where is Mode-S 3C664C registered?
Mode-S code 3C664C is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C664C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C664C, octal 17063114, decimal 3,958,348.
What flights does 3C664C operate?
Mode-S 3C664C has broadcast 20 distinct callsigns, including DLH804, DLH7LY, DLH78H, DLH6CF, DLH4WE.