Apparatus

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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
Broadcasting now · callsign DLH982 · 25,475 ft
Flights observed
221
Distinct callsigns
20
Country
DE
Last broadcast
5h ago

Current position

3C664D is currently broadcasting. Map zoomed to live position.

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
DLH81H Lufthansa 4 2026-06-02
DLH9ML Lufthansa 3 2026-05-26
DLH67K Lufthansa 3 2026-06-01
DLH5LX Lufthansa 3 2026-05-27
DLH4AR Lufthansa 3 2026-05-30
DLH309 Lufthansa 3 2026-05-30
DLH2NL Lufthansa 3 2026-06-03
DLH172 Lufthansa 3 2026-06-03
DLH8MW Lufthansa 2 2026-05-23
DLH8HX Lufthansa 2 2026-05-27
DLH893 Lufthansa 2 2026-04-17
DLH880 Lufthansa 2 2026-05-26
DLH830 Lufthansa 2 2026-05-29
DLH7VV Lufthansa 2 2026-05-23
DLH74U Lufthansa 2 2026-04-21
DLH6MM Lufthansa 2 2026-04-30
DLH6KA Lufthansa 2 2026-05-29
DLH6CF Lufthansa 2 2026-05-20
DLH4WE Lufthansa 2 2026-05-10
DLH4LM Lufthansa 2 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 DLH47F FRA → TLS Jun 3, 12:10 UTCJun 3, 13:55 UTC1h 45m
2026-06-03 DLH29M FRA → SVQ Jun 3, 09:25 UTCJun 3, 10:50 UTC1h 25m
2026-06-03 DLH2NL MUC → FRA Jun 3, 06:55 UTCJun 3, 07:40 UTC45m
2026-06-03 DLH172 FRA → BER Jun 3, 05:00 UTCJun 3, 05:50 UTC50m
2026-06-02 DLH42Y LIS → FRA Jun 2, 16:20 UTCJun 2, 18:50 UTC2h 30m
2026-06-02 DLH03H MUC → BCN Jun 2, 12:05 UTCJun 2, 14:55 UTC2h 50m
2026-06-02 DLH81H FRA → OPO Jun 2, 07:10 UTCJun 2, 09:10 UTC2h 0m
2026-06-01 DLH67K FRA → MAD Jun 1, 20:10 UTCJun 1, 22:20 UTC2h 10m
2026-06-01 DLH4N MUC → BER Jun 1, 15:45 UTCJun 1, 16:15 UTC30m
2026-06-01 DLH5YE FRA → MUC Jun 1, 13:55 UTCJun 1, 14:35 UTC40m
2026-06-01 DLH2XV EDI → FRA Jun 1, 11:05 UTCJun 1, 12:05 UTC1h 0m
2026-06-01 DLH2EP FRA → CPH Jun 1, 08:35 UTCJun 1, 09:45 UTC1h 10m
2026-06-01 DLH72K BIO → FRA Jun 1, 04:25 UTCJun 1, 07:00 UTC2h 35m
2026-05-31 DLH34J FRA → BIQ May 31, 19:55 UTCMay 31, 22:35 UTC2h 40m
2026-05-31 DLH1165 VLC → FRA May 31, 12:30 UTCMay 31, 12:55 UTC25m
2026-05-30 DLH04U BOD → BOD May 30, 18:50 UTCMay 30, 20:45 UTC1h 55m
2026-05-30 DLH309 CTA → FRA May 30, 15:15 UTCMay 30, 17:25 UTC2h 10m
2026-05-30 DLH4AR BRE → MUC May 30, 11:55 UTCMay 30, 13:50 UTC1h 55m
2026-05-30 DLH1TT FRA → BLL May 30, 07:55 UTCMay 30, 09:10 UTC1h 15m
2026-05-30 DLH5PP BSL → MUC May 30, 05:35 UTCMay 30, 06:45 UTC1h 10m
2026-05-29 DLH3HT HAM → FRA May 29, 17:45 UTCMay 29, 18:45 UTC1h 0m
2026-05-29 DLH830 FRA → CPH May 29, 15:20 UTCMay 29, 16:25 UTC1h 5m
2026-05-29 DLH6KA MUC → BUD May 29, 12:35 UTCMay 29, 13:55 UTC1h 20m
2026-05-29 DLH3UX FCO → FRA May 29, 10:20 UTCMay 29, 11:35 UTC1h 15m
2026-05-29 DLH81H FRA → OPO May 29, 06:40 UTCMay 29, 08:45 UTC2h 5m
2026-05-28 DLH67K FRA → MAD May 28, 19:35 UTCMay 28, 21:50 UTC2h 15m
2026-05-28 DLH44K PMI → FRA May 28, 15:50 UTCMay 28, 17:50 UTC2h 0m
2026-05-28 DLH14C FRA → MAD May 28, 12:15 UTCMay 28, 14:20 UTC2h 5m
2026-05-28 DLH1RF MUC → FRA May 28, 10:10 UTCMay 28, 10:50 UTC40m
2026-05-28 DLH4LC FRA → HAM May 28, 08:35 UTCMay 28, 09:10 UTC35m
2026-05-28 DLH243 FCO → FRA May 28, 05:30 UTCMay 28, 07:00 UTC1h 30m
2026-05-27 DLH8HX FRA → GOT May 27, 19:35 UTCMay 27, 21:00 UTC1h 25m
2026-05-27 DLH6UP FRA → HAJ May 27, 11:45 UTCMay 27, 14:20 UTC2h 35m
2026-05-27 DLH4PP LHR → MUC May 27, 08:05 UTCMay 27, 10:30 UTC2h 25m
2026-05-27 DLH5LX FRA → HAM May 27, 05:09 UTCMay 27, 06:29 UTC1h 20m
2026-05-26 DLH9ML FRA → KRK May 26, 20:24 UTCMay 26, 21:34 UTC1h 10m
2026-05-26 DLH8MF BHX → MUC May 26, 18:05 UTCMay 26, 18:55 UTC50m
2026-05-26 DLH2WY FRA → FCO May 26, 16:15 UTCMay 26, 16:59 UTC45m
2026-05-26 DLH1RE MUC → HEL May 26, 11:09 UTCMay 26, 13:19 UTC2h 10m
2026-05-26 DLH880 FRA → TLL May 26, 08:04 UTCMay 26, 09:59 UTC1h 55m
2026-05-26 DLH243 FCO → FRA May 26, 05:05 UTCMay 26, 06:29 UTC1h 25m
2026-05-25 DLH8HX FRA → GOT May 25, 19:35 UTCMay 25, 21:04 UTC1h 30m
2026-05-25 DLH77X BIO → FRA May 25, 10:40 UTCMay 25, 13:05 UTC2h 25m
2026-05-25 DLH98C FRA → SVQ May 25, 06:35 UTCMay 25, 09:10 UTC2h 35m
2026-05-24 DLH39E STR → SKG May 24, 17:35 UTCMay 24, 19:45 UTC2h 10m
2026-05-24 DLH02M FRA → SKG May 24, 13:40 UTCMay 24, 15:45 UTC2h 5m
2026-05-23 DLH7VV FCO → MUC May 23, 09:20 UTCMay 23, 10:20 UTC1h 0m
2026-05-23 DLH8MW FRA → VCE May 23, 07:15 UTCMay 23, 08:10 UTC55m
2026-05-23 DLH3WT LEJ → FRA May 23, 04:10 UTCMay 23, 05:30 UTC1h 20m
2026-05-22 DLH3NM GOT → GOT May 22, 20:45 UTCMay 22, 21:55 UTC1h 10m

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?
Yes. Mode-S 3C664D is currently airborne.
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 DLH81H, DLH9ML, DLH67K, DLH5LX, DLH4AR.