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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 Jul 25, 21:25 UTC
Flights observed
461
Distinct callsigns
20
Country
DE
Last broadcast
Jul 25, 21:25 UTC

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
DLH9PL - 6 2026-07-21
DLH982 - 6 2026-07-20
DLH309 - 6 2026-06-24
DLH2EP - 6 2026-07-20
DLH6KA - 5 2026-06-25
DLH4AR - 5 2026-06-24
DLH3UX - 5 2026-06-25
DLH2XV - 5 2026-07-20
DLH980 - 4 2026-07-11
DLH83T - 4 2026-07-18
DLH6EJ - 4 2026-07-19
DLH5RM - 4 2026-07-11
DLH4KW Lufthansa 4 2026-07-18
DLH26C - 4 2026-07-12
DLH11Y - 4 2026-07-12
DLH05E Lufthansa 4 2026-07-18
DLH9KK - 3 2026-07-19
DLH99M - 3 2026-07-16
DLH965 - 3 2026-07-20
DLH8WY - 3 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DLH206 FRA → DRS Jul 25, 20:40 UTCJul 25, 21:25 UTC45m
2026-07-25 DLH35U FAO → FRA Jul 25, 15:50 UTCJul 25, 18:30 UTC2h 40m
2026-07-25 DLH02T MUC → BCN Jul 25, 12:00 UTCJul 25, 14:40 UTC2h 40m
2026-07-25 DLH77P MAD → MUC Jul 25, 06:15 UTCJul 25, 08:00 UTC1h 45m
2026-07-24 DLH11F FRA → OPO Jul 24, 15:55 UTCJul 24, 17:35 UTC1h 40m
2026-07-24 DLH35M MUC → CDG Jul 24, 12:15 UTCJul 24, 14:40 UTC2h 25m
2026-07-24 DLH39X BIO → MUC Jul 24, 08:00 UTCJul 24, 10:50 UTC2h 50m
2026-07-24 DLH9FW BHX → FRA Jul 24, 05:10 UTCJul 24, 05:45 UTC35m
2026-07-23 DLH7EC MUC → DUS Jul 23, 18:15 UTCJul 23, 18:55 UTC40m
2026-07-23 DLH6TN - Jul 23, 12:40 UTCJul 23, 13:45 UTC1h 5m
2026-07-23 DLH5EV WAW → FRA Jul 23, 10:15 UTCJul 23, 11:50 UTC1h 35m
2026-07-23 DLH2NL MUC → FRA Jul 23, 06:55 UTCJul 23, 07:45 UTC50m
2026-07-23 DLH172 FRA → BER Jul 23, 05:00 UTCJul 23, 05:50 UTC50m
2026-07-22 DLH9WT FRA → DUS Jul 22, 17:25 UTCJul 22, 19:00 UTC1h 35m
2026-07-22 DLH6VX FRA → ARN Jul 22, 14:50 UTCJul 22, 16:35 UTC1h 45m
2026-07-22 DLH3RK FRA → CPH Jul 22, 11:15 UTCJul 22, 13:35 UTC2h 20m
2026-07-22 DLH899 STR → DUS Jul 22, 03:45 UTCJul 22, 05:25 UTC1h 40m
2026-07-21 DLH898 DUS → STR Jul 21, 19:00 UTCJul 21, 20:40 UTC1h 40m
2026-07-21 DLH9CP FRA → BHX Jul 21, 11:50 UTCJul 21, 13:20 UTC1h 30m
2026-07-21 DLH8PK - Jul 21, 09:05 UTCJul 21, 10:30 UTC1h 25m
2026-07-21 DLH9PL DUB → FRA Jul 21, 05:15 UTCJul 21, 06:50 UTC1h 35m
2026-07-20 DLH982 FRA → DUB Jul 20, 19:50 UTCJul 20, 21:20 UTC1h 30m
2026-07-20 DLH340 FRA → GOA Jul 20, 13:45 UTCJul 20, 18:35 UTC4h 50m
2026-07-20 DLH2XV CPH → FRA Jul 20, 10:55 UTCJul 20, 12:00 UTC1h 5m
2026-07-20 DLH2EP FRA → CPH Jul 20, 08:45 UTCJul 20, 09:50 UTC1h 5m
2026-07-20 DLH965 - Jul 20, 05:20 UTCJul 20, 06:50 UTC1h 30m
2026-07-19 DLH5EL FRA → EDI Jul 19, 20:30 UTCJul 19, 22:05 UTC1h 35m
2026-07-19 DLH62A - Jul 19, 16:10 UTCJul 19, 18:30 UTC2h 20m
2026-07-19 DLH79E - Jul 19, 12:35 UTCJul 19, 15:00 UTC2h 25m
2026-07-19 DLH9KK - Jul 19, 10:30 UTCJul 19, 11:10 UTC40m
2026-07-19 DLH3WU FRA → LHR Jul 19, 08:20 UTCJul 19, 09:05 UTC45m
2026-07-19 DLH6EJ - Jul 19, 04:10 UTCJul 19, 05:10 UTC1h 0m
2026-07-18 DLH4KW ATH → MUC Jul 18, 20:55 UTCJul 18, 21:55 UTC1h 0m
2026-07-18 DLH05E FRA → PMI Jul 18, 16:40 UTCJul 18, 18:50 UTC2h 10m
2026-07-18 DLH83T FRA → OPO Jul 18, 13:00 UTCJul 18, 15:20 UTC2h 20m
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

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 Jul 25, 21:25 UTC.
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 DLH9PL, DLH982, DLH309, DLH2EP, DLH6KA.