Apparatus

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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 48m ago
Flights observed
408
Distinct callsigns
20
Country
DE
Last broadcast
48m ago

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
DLH78H - 5 2026-07-01
DLH6CF - 5 2026-06-26
DLH4WE Lufthansa 5 2026-05-15
DLH8PP - 4 2026-06-29
DLH8MW - 4 2026-06-20
DLH804 - 4 2026-07-02
DLH7VV - 4 2026-06-20
DLH7LY - 4 2026-07-02
DLH67K - 4 2026-06-30
DLH62F Lufthansa 4 2026-05-24
DLH4UP - 4 2026-06-29
DLH3RK Lufthansa 4 2026-05-15
DLH2EW - 4 2026-06-26
DLH1456 - 4 2026-06-26
DLH12K Lufthansa 4 2026-05-24
DLH11F - 4 2026-07-03
DLH010 Lufthansa 4 2026-06-15
DLH8WE Lufthansa 3 2026-06-15
DLH881 - 3 2026-04-13
DLH821 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH5A - Jul 14, 06:15 UTCJul 14, 06:55 UTC40m
2026-07-13 DLH2HK - Jul 13, 19:35 UTCJul 13, 20:25 UTC50m
2026-07-13 DLH195 - Jul 13, 17:35 UTCJul 13, 18:30 UTC55m
2026-07-13 DLH194 FRA → BER Jul 13, 15:50 UTCJul 13, 16:30 UTC40m
2026-07-13 DLH1299 - Jul 13, 11:55 UTCJul 13, 14:30 UTC2h 35m
2026-07-13 DLH1298 - Jul 13, 07:45 UTCJul 13, 10:15 UTC2h 30m
2026-07-13 DLH821 - Jul 13, 04:05 UTCJul 13, 05:31 UTC1h 25m
2026-07-12 DLH7CE FRA → GOT Jul 12, 20:05 UTCJul 12, 21:15 UTC1h 10m
2026-07-12 DLH7MN - Jul 12, 17:10 UTCJul 12, 18:15 UTC1h 5m
2026-07-12 DLH9CH - Jul 12, 15:10 UTCJul 12, 16:01 UTC50m
2026-07-12 DLH51V - Jul 12, 12:45 UTCJul 12, 13:40 UTC55m
2026-07-12 DLH43V - Jul 12, 10:05 UTCJul 12, 11:05 UTC1h 0m
2026-07-12 DLH175 BER → FRA Jul 12, 08:01 UTCJul 12, 08:50 UTC50m
2026-07-12 DLH174 FRA → BER Jul 12, 05:55 UTCJul 12, 06:45 UTC50m
2026-07-11 DLH9855 - Jul 11, 18:25 UTCJul 11, 20:10 UTC1h 45m
2026-07-11 DLH1LC - Jul 11, 14:25 UTCJul 11, 16:10 UTC1h 45m
2026-07-11 DLH11Y - Jul 11, 11:30 UTCJul 11, 13:10 UTC1h 40m
2026-07-11 DLH26C FRA → BCN Jul 11, 08:25 UTCJul 11, 10:00 UTC1h 35m
2026-07-11 DLH9CJ BER → FRA Jul 11, 05:01 UTCJul 11, 05:50 UTC50m
2026-07-05 DLH206 FRA → BER Jul 5, 20:00 UTCJul 5, 20:50 UTC50m
2026-07-05 DLH95H - Jul 5, 12:30 UTCJul 5, 15:10 UTC2h 40m
2026-07-05 DLH37E FRA → FAO Jul 5, 08:45 UTCJul 5, 11:25 UTC2h 40m
2026-07-05 DLH5A - Jul 5, 06:20 UTCJul 5, 07:00 UTC40m
2026-07-04 DLH2HK - Jul 4, 19:15 UTCJul 4, 20:05 UTC50m
2026-07-04 DLH35U FAO → FRA Jul 4, 14:55 UTCJul 4, 17:35 UTC2h 40m
2026-07-04 DLH02T FRA → FAO Jul 4, 10:55 UTCJul 4, 13:35 UTC2h 40m
2026-07-04 DLH77P BCN → FRA Jul 4, 06:10 UTCJul 4, 07:55 UTC1h 45m
2026-07-03 DLH11F FRA → BCN Jul 3, 16:00 UTCJul 3, 17:35 UTC1h 35m
2026-07-03 DLH2XV - Jul 3, 10:55 UTCJul 3, 12:00 UTC1h 5m
2026-07-03 DLH2EP - Jul 3, 08:40 UTCJul 3, 09:50 UTC1h 10m
2026-07-03 DLH3HP MLA → FRA Jul 3, 04:15 UTCJul 3, 06:35 UTC2h 20m
2026-07-02 DLH8AH FRA → MLA Jul 2, 19:10 UTCJul 2, 21:20 UTC2h 10m
2026-07-02 DLH7LY ARN → FRA Jul 2, 15:45 UTCJul 2, 17:35 UTC1h 50m
2026-07-02 DLH804 FRA → ARN Jul 2, 12:05 UTCJul 2, 13:45 UTC1h 40m
2026-07-02 DLH99Y LIS → FRA Jul 2, 06:51 UTCJul 2, 09:25 UTC2h 34m
2026-07-01 DLH34J FRA → LIS Jul 1, 19:00 UTCJul 1, 21:40 UTC2h 40m
2026-07-01 DLH5RL - Jul 1, 12:25 UTCJul 1, 14:25 UTC2h 0m
2026-07-01 DLH9YC - Jul 1, 09:00 UTCJul 1, 10:50 UTC1h 50m
2026-07-01 DLH78H - Jul 1, 04:15 UTCJul 1, 06:15 UTC2h 0m
2026-06-30 DLH67K - Jun 30, 19:15 UTCJun 30, 21:20 UTC2h 5m
2026-06-30 DLH7LY ARN → FRA Jun 30, 15:35 UTCJun 30, 17:25 UTC1h 50m
2026-06-30 DLH804 FRA → ARN Jun 30, 11:50 UTCJun 30, 13:20 UTC1h 30m
2026-06-30 DLH4NM MUC → FRA Jun 30, 09:15 UTCJun 30, 09:55 UTC40m
2026-06-30 DLH1UP - Jun 30, 07:45 UTCJun 30, 08:15 UTC30m
2026-06-30 DLH54J LYS → FRA Jun 30, 05:30 UTCJun 30, 06:20 UTC50m
2026-06-29 DLH19E FRA → LYS Jun 29, 20:09 UTCJun 29, 21:09 UTC1h 0m
2026-06-29 DLH4UP MLA → FRA Jun 29, 15:39 UTCJun 29, 17:55 UTC2h 15m
2026-06-29 DLH8PP FRA → MLA Jun 29, 12:20 UTCJun 29, 14:25 UTC2h 5m
2026-06-29 DLH821 - Jun 29, 07:15 UTCJun 29, 08:39 UTC1h 25m
2026-06-28 DLH7CE - Jun 28, 20:04 UTCJun 28, 21:20 UTC1h 15m

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 48m ago.
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 DLH78H, DLH6CF, DLH4WE, DLH8PP, DLH8MW.