Apparatus

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sensors Mode-S transponder

3C6657

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIRW · AIRBUS A-321

Hex
3C6657
Octal
17063127
Decimal
3,958,359
Country
DE
Tail
D-AIRW
Type
A321
No current signal · last broadcast 1h ago
Flights observed
426
Distinct callsigns
20
Country
DE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 3C6657.

Country allocation

The ICAO 24-bit address 3C6657 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
DLH309 - 6 2026-06-24
DLH9PL - 5 2026-06-29
DLH982 - 5 2026-06-28
DLH6KA - 5 2026-06-25
DLH4AR - 5 2026-06-24
DLH3UX - 5 2026-06-25
DLH2EP - 5 2026-06-29
DLH980 - 4 2026-07-11
DLH5RM - 4 2026-07-11
DLH2XV - 4 2026-06-29
DLH26C - 4 2026-07-12
DLH11Y - 4 2026-07-12
DLH99M - 3 2026-07-16
DLH8WY - 3 2026-07-07
DLH8NK - 3 2026-07-10
DLH875 - 3 2026-07-07
DLH83T - 3 2026-07-04
DLH821 - 3 2026-06-24
DLH81H Lufthansa 3 2026-06-12
DLH7FL Lufthansa 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 DLH9KK - Jul 18, 10:10 UTCJul 18, 10:50 UTC40m
2026-07-18 DLH3WU FRA → LHR Jul 18, 08:05 UTCJul 18, 08:55 UTC50m
2026-07-18 DLH5LX - Jul 18, 04:15 UTCJul 18, 05:35 UTC1h 20m
2026-07-17 DLH9ML - Jul 17, 20:55 UTCJul 17, 22:15 UTC1h 20m
2026-07-17 DLH6EE MUC → FRA Jul 17, 18:25 UTCJul 17, 19:00 UTC35m
2026-07-17 DLH4MW FRA → MUC Jul 17, 16:00 UTCJul 17, 16:40 UTC40m
2026-07-17 DLH3CJ - Jul 17, 12:30 UTCJul 17, 13:45 UTC1h 15m
2026-07-17 DLH7AA - Jul 17, 09:30 UTCJul 17, 10:55 UTC1h 25m
2026-07-17 DLH92J BCN → MUC Jul 17, 05:10 UTCJul 17, 07:20 UTC2h 10m
2026-07-16 DLH44C FRA → OPO Jul 16, 20:05 UTCJul 16, 22:35 UTC2h 30m
2026-07-16 DLH99M ALC → FRA Jul 16, 16:30 UTCJul 16, 18:40 UTC2h 10m
2026-07-16 DLH93V FRA → ALC Jul 16, 12:09 UTCJul 16, 14:29 UTC2h 20m
2026-07-16 DLH8HT - Jul 16, 09:55 UTCJul 16, 10:35 UTC40m
2026-07-16 DLH5EC FRA → MUC Jul 16, 08:05 UTCJul 16, 08:45 UTC40m
2026-07-16 DLH7EK - Jul 16, 04:35 UTCJul 16, 05:25 UTC50m
2026-07-15 DLH1WP FRA → HAM Jul 15, 17:25 UTCJul 15, 18:05 UTC40m
2026-07-15 DLH4KV HEL → FRA Jul 15, 11:10 UTCJul 15, 13:20 UTC2h 10m
2026-07-15 DLH4NH FRA → HEL Jul 15, 08:05 UTCJul 15, 10:10 UTC2h 5m
2026-07-14 DLH4A AMS → FRA Jul 14, 13:15 UTCJul 14, 14:00 UTC45m
2026-07-14 DLH6HV - Jul 14, 11:05 UTCJul 14, 11:50 UTC45m
2026-07-14 DLH77P BCN → FRA Jul 14, 06:10 UTCJul 14, 07:45 UTC1h 35m
2026-07-13 DLH11F FRA → BCN Jul 13, 15:55 UTCJul 13, 17:40 UTC1h 45m
2026-07-13 DLH7EL - Jul 13, 13:20 UTCJul 13, 14:25 UTC1h 5m
2026-07-13 DLH1HE - Jul 13, 10:50 UTCJul 13, 11:50 UTC1h 0m
2026-07-13 DLH6CF - Jul 13, 07:50 UTCJul 13, 09:10 UTC1h 20m
2026-07-13 DLH2EW FRA → WAW Jul 13, 05:31 UTCJul 13, 06:45 UTC1h 15m
2026-07-12 DLH73H - Jul 12, 17:15 UTCJul 12, 18:35 UTC1h 20m
2026-07-12 DLH01Y - Jul 12, 14:55 UTCJul 12, 16:01 UTC1h 5m
2026-07-12 DLH11Y BCN → FRA Jul 12, 11:45 UTCJul 12, 13:30 UTC1h 45m
2026-07-12 DLH26C FRA → BCN Jul 12, 08:10 UTCJul 12, 09:55 UTC1h 45m
2026-07-12 DLH5KW - Jul 12, 04:50 UTCJul 12, 06:40 UTC1h 50m
2026-07-11 DLH6VP FRA → ARN Jul 11, 20:30 UTCJul 11, 22:15 UTC1h 45m
2026-07-11 DLH5RM DUB → FRA Jul 11, 16:50 UTCJul 11, 18:25 UTC1h 35m
2026-07-11 DLH980 FRA → DUB Jul 11, 14:05 UTCJul 11, 15:40 UTC1h 35m
2026-07-11 DLH21P - Jul 11, 10:30 UTCJul 11, 12:30 UTC2h 0m
2026-07-11 DLH68X - Jul 11, 07:25 UTCJul 11, 09:05 UTC1h 40m
2026-07-11 DLH6EJ - Jul 11, 04:15 UTCJul 11, 05:25 UTC1h 10m
2026-07-10 DLH4KW FRA → BLL Jul 10, 19:40 UTCJul 10, 20:40 UTC1h 0m
2026-07-10 DLH3FT MUC → FRA Jul 10, 17:35 UTCJul 10, 18:15 UTC40m
2026-07-10 DLH8NK FRA → MUC Jul 10, 16:00 UTCJul 10, 16:35 UTC35m
2026-07-10 DLH8VR CPH → FRA Jul 10, 13:25 UTCJul 10, 14:35 UTC1h 10m
2026-07-10 DLH6KL - Jul 10, 11:10 UTCJul 10, 12:15 UTC1h 5m
2026-07-10 DLH36N - Jul 10, 08:50 UTCJul 10, 09:35 UTC45m
2026-07-10 DLH37T FRA → SZG Jul 10, 07:00 UTCJul 10, 07:35 UTC35m
2026-07-10 DLH6EJ - Jul 10, 04:15 UTCJul 10, 05:20 UTC1h 5m
2026-07-09 DLH4KW FRA → BLL Jul 9, 20:30 UTCJul 9, 21:30 UTC1h 0m
2026-07-09 DLH963 EDI → FRA Jul 9, 17:45 UTCJul 9, 19:10 UTC1h 25m
2026-07-09 DLH2XH FRA → EDI Jul 9, 14:45 UTCJul 9, 16:25 UTC1h 40m
2026-07-09 DLH7VV - Jul 9, 09:05 UTCJul 9, 10:10 UTC1h 5m
2026-07-09 DLH8MW - Jul 9, 07:00 UTCJul 9, 07:55 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-AIRW page for operator, model, and routing details .

Mode-S 3C6657 frequently asked

What is Mode-S code 3C6657?
3C6657 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIRW.
Where is Mode-S 3C6657 registered?
Mode-S code 3C6657 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6657 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6657, octal 17063127, decimal 3,958,359.
What flights does 3C6657 operate?
Mode-S 3C6657 has broadcast 20 distinct callsigns, including DLH309, DLH9PL, DLH982, DLH6KA, DLH4AR.