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sensors Mode-S transponder

3C664F

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRO · AIRBUS A-321

Hex
3C664F
Octal
17063117
Decimal
3,958,351
Country
DE
Tail
D-AIRO
Type
A321
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
474
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 3C664F.

Country allocation

The ICAO 24-bit address 3C664F 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
DLH8WE - 5 2026-07-01
DLH821 Lufthansa 5 2026-07-22
DLH7CE Lufthansa 5 2026-07-21
DLH6KA - 5 2026-07-09
DLH3UX - 5 2026-07-09
DLH08F - 5 2026-06-28
DLH01E - 5 2026-06-28
DLH010 - 5 2026-07-01
DLH979 Lufthansa 4 2026-07-21
DLH978 - 4 2026-07-21
DLH81H - 4 2026-07-12
DLH67K - 4 2026-07-11
DLH4YF Lufthansa 4 2026-05-20
DLH4WE - 4 2026-07-17
DLH44K - 4 2026-06-30
DLH247 Lufthansa 4 2026-05-20
DLH195 - 4 2026-07-05
DLH194 - 4 2026-07-05
DLH14C - 4 2026-06-30
DLH1455 Lufthansa 4 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH3EK CLJ → FRA Jul 26, 15:00 UTCJul 26, 16:40 UTC1h 40m
2026-07-26 DLH3NX MUC → LHR Jul 26, 12:20 UTCJul 26, 13:55 UTC1h 35m
2026-07-26 DLH3PF MUC → FRA Jul 26, 09:30 UTCJul 26, 10:55 UTC1h 25m
2026-07-26 DLH9LL MUC → CGN Jul 26, 05:20 UTCJul 26, 06:50 UTC1h 31m
2026-07-25 DLH5TY NAP → MUC Jul 25, 17:10 UTCJul 25, 18:35 UTC1h 25m
2026-07-25 DLH1LC WRO → FRA Jul 25, 14:15 UTCJul 25, 15:40 UTC1h 25m
2026-07-25 DLH9MH BLL → FRA Jul 25, 12:00 UTCJul 25, 12:50 UTC50m
2026-07-25 DLH2HH MUC → FRA Jul 25, 10:15 UTCJul 25, 11:00 UTC45m
2026-07-25 DLH1305 IST → FRA Jul 25, 03:25 UTCJul 25, 06:05 UTC2h 40m
2026-07-24 DLH1304 FRA → IST Jul 24, 16:05 UTCJul 24, 18:30 UTC2h 25m
2026-07-24 DLH6UP FRA → HAJ Jul 24, 11:55 UTCJul 24, 14:25 UTC2h 30m
2026-07-24 DLH4PP LHR → MUC Jul 24, 07:55 UTCJul 24, 10:05 UTC2h 10m
2026-07-24 DLH1PF SVG → FRA Jul 24, 04:25 UTCJul 24, 06:15 UTC1h 50m
2026-07-23 DLH338 FRA → PMO Jul 23, 19:10 UTCJul 23, 20:45 UTC1h 35m
2026-07-23 DLH12K - Jul 23, 15:40 UTCJul 23, 17:30 UTC1h 50m
2026-07-23 DLH62F FRA → BCN Jul 23, 12:40 UTCJul 23, 14:20 UTC1h 40m
2026-07-23 DLH6PJ ATH → FRA Jul 23, 10:10 UTCJul 23, 10:55 UTC45m
2026-07-23 DLH1VR FRA → HAM Jul 23, 08:15 UTCJul 23, 09:05 UTC50m
2026-07-23 DLH207 DRS → FRA Jul 23, 06:25 UTCJul 23, 06:45 UTC20m
2026-07-23 DLH207 DRS → FRA Jul 23, 06:05 UTCJul 23, 06:20 UTC15m
2026-07-22 DLH206 FRA → DRS Jul 22, 20:00 UTCJul 22, 20:45 UTC45m
2026-07-22 DLH7LY ARN → FRA Jul 22, 15:35 UTCJul 22, 17:15 UTC1h 40m
2026-07-22 DLH804 FRA → ARN Jul 22, 11:55 UTCJul 22, 13:45 UTC1h 50m
2026-07-22 DLH821 GOT → FRA Jul 22, 04:15 UTCJul 22, 05:25 UTC1h 10m
2026-07-21 DLH7CE BRE → MUC Jul 21, 20:30 UTCJul 21, 21:55 UTC1h 25m
2026-07-21 DLH947 MAN → FRA Jul 21, 17:30 UTCJul 21, 18:45 UTC1h 15m
2026-07-21 DLH9YW FRA → MAN Jul 21, 14:55 UTCJul 21, 16:15 UTC1h 20m
2026-07-21 DLH979 DUB → FRA Jul 21, 12:05 UTCJul 21, 13:35 UTC1h 30m
2026-07-21 DLH978 FRA → DUB Jul 21, 09:00 UTCJul 21, 10:35 UTC1h 35m
2026-07-21 DLH3RJ ATH → FRA Jul 21, 04:10 UTCJul 21, 06:55 UTC2h 45m
2026-07-20 DLH6TV FRA → ATH Jul 20, 15:55 UTCJul 20, 18:15 UTC2h 20m
2026-07-20 DLH1299 - Jul 20, 12:00 UTCJul 20, 14:30 UTC2h 30m
2026-07-20 DLH1298 - Jul 20, 07:30 UTCJul 20, 09:55 UTC2h 25m
2026-07-20 DLH821 - Jul 20, 04:30 UTCJul 20, 05:40 UTC1h 10m
2026-07-19 DLH7CE BRE → MUC Jul 19, 20:20 UTCJul 19, 21:35 UTC1h 15m
2026-07-19 DLH73H - Jul 19, 17:10 UTCJul 19, 18:25 UTC1h 15m
2026-07-19 DLH01Y - Jul 19, 15:00 UTCJul 19, 16:05 UTC1h 5m
2026-07-19 DLH21P PMI → FRA Jul 19, 10:30 UTCJul 19, 12:15 UTC1h 45m
2026-07-19 DLH68X FRA → PMI Jul 19, 07:15 UTCJul 19, 09:20 UTC2h 5m
2026-07-19 DLH1327 TUN → FRA Jul 19, 01:00 UTCJul 19, 03:05 UTC2h 5m
2026-07-18 DLH1326 - Jul 18, 20:15 UTCJul 18, 22:00 UTC1h 45m
2026-07-18 DLH2PV HAM → FRA Jul 18, 17:30 UTCJul 18, 18:30 UTC1h 0m
2026-07-18 DLH4XK FRA → HAM Jul 18, 15:15 UTCJul 18, 16:00 UTC45m
2026-07-18 DLH9CP FRA → BHX Jul 18, 12:30 UTCJul 18, 14:00 UTC1h 30m
2026-07-18 DLH8PK - Jul 18, 09:05 UTCJul 18, 10:30 UTC1h 25m
2026-07-18 DLH6VN NUE → FRA Jul 18, 07:10 UTCJul 18, 07:30 UTC20m
2026-07-18 DLH5KA FRA → BRU Jul 18, 05:45 UTCJul 18, 06:10 UTC25m
2026-07-17 DLH6UL BUD → FRA Jul 17, 18:19 UTCJul 17, 19:35 UTC1h 15m
2026-07-17 DLH6HE FRA → BUD Jul 17, 16:10 UTCJul 17, 17:20 UTC1h 10m
2026-07-17 DLH3RK MLA → FRA Jul 17, 11:50 UTCJul 17, 14:10 UTC2h 20m

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

Mode-S 3C664F frequently asked

What is Mode-S code 3C664F?
3C664F is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRO.
Where is Mode-S 3C664F registered?
Mode-S code 3C664F is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C664F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C664F, octal 17063117, decimal 3,958,351.
What flights does 3C664F operate?
Mode-S 3C664F has broadcast 20 distinct callsigns, including DLH8WE, DLH821, DLH7CE, DLH6KA, DLH3UX.