Apparatus

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sensors Mode-S transponder

3C7A51

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ANRQ · AIRBUS A-330-900

Hex
3C7A51
Octal
17075121
Decimal
3,963,473
Country
DE
Tail
D-ANRQ
Type
A339
No current signal · last broadcast 6h ago
Flights observed
173
Distinct callsigns
20
Country
DE
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 3C7A51.

Country allocation

The ICAO 24-bit address 3C7A51 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
CFG2369 Condor Flugdienst 12 2026-05-09
CFG315 - 9 2026-07-13
CFG291 Condor Flugdienst 8 2026-05-21
CFG282 - 8 2026-07-08
CFG290 - 7 2026-05-20
CFG2368 Condor Flugdienst 7 2026-05-09
CFG081 - 7 2026-06-16
CFG2367 - 6 2026-07-02
CFG080 Condor Flugdienst 6 2026-06-15
CFG017 - 6 2026-07-10
CFG016 - 6 2026-07-10
CFG314 Condor Flugdienst 5 2026-07-12
CFG2366 - 5 2026-07-01
CFG117 Condor Flugdienst 5 2026-05-24
CFG455 - 4 2026-06-20
CFG403 - 4 2026-06-19
CFG402 - 4 2026-06-18
CFG288 - 4 2026-07-13
CFG116 Condor Flugdienst 4 2026-05-23
CFG039 Condor Flugdienst 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CFG288 - Jul 13, 19:00 UTCJul 14, 05:00 UTC10h 0m
2026-07-13 CFG315 - Jul 13, 11:35 UTCJul 13, 15:45 UTC4h 10m
2026-07-12 CFG315 - Jul 12, 18:30 UTCJul 13, 15:45 UTC21h 15m
2026-07-12 CFG315 - Jul 12, 16:20 UTCJul 13, 15:45 UTC23h 25m
2026-07-12 CFG314 FRA → MRU Jul 12, 15:20 UTCJul 13, 14:15 UTC22h 55m
2026-07-12 CFG033 SEA → FRA Jul 12, 02:10 UTCJul 12, 11:25 UTC9h 15m
2026-07-11 CFG032 FRA → SEA Jul 11, 13:15 UTCJul 11, 23:20 UTC10h 5m
2026-07-10 CFG017 JFK → FRA Jul 10, 21:05 UTCJul 11, 03:50 UTC6h 45m
2026-07-10 CFG016 FRA → JFK Jul 10, 10:15 UTCJul 10, 18:35 UTC8h 20m
2026-07-08 CFG282 - Jul 8, 20:45 UTCJul 9, 15:05 UTC18h 20m
2026-07-08 CFG282 - Jul 8, 18:20 UTCJul 9, 15:05 UTC20h 45m
2026-07-08 CFG282 - Jul 8, 17:40 UTCJul 9, 14:15 UTC20h 35m
2026-07-07 CFG289 QRA → FRA Jul 7, 16:50 UTCJul 8, 03:50 UTC11h 0m
2026-07-06 CFG288 - Jul 6, 18:50 UTCJul 7, 05:05 UTC10h 15m
2026-07-06 CFG282 - Jul 6, 15:45 UTCJul 6, 16:10 UTC25m
2026-07-05 CFG282 - Jul 5, 20:20 UTCJul 6, 15:35 UTC19h 15m
2026-07-05 CFG282 - Jul 5, 18:20 UTCJul 6, 15:35 UTC21h 15m
2026-07-04 CFG2363 BKK → FRA Jul 4, 16:00 UTCJul 5, 03:45 UTC11h 45m
2026-07-03 CFG2362 FRA → HFE Jul 3, 18:35 UTCJul 4, 05:10 UTC10h 35m
2026-07-02 CFG2367 - Jul 2, 16:45 UTCJul 3, 04:20 UTC11h 35m
2026-07-02 CFG2367 - Jul 2, 08:30 UTCJul 2, 14:30 UTC6h 0m
2026-07-01 CFG2366 FRA → BKK Jul 1, 18:50 UTCJul 2, 05:40 UTC10h 50m
2026-06-30 CFG282 - Jun 30, 20:20 UTCJul 1, 15:40 UTC19h 20m
2026-06-30 CFG282 FRA → FRA Jun 30, 18:35 UTCJul 1, 15:40 UTC21h 5m
2026-06-29 CFG441 YYC → FRA Jun 29, 22:55 UTCJun 30, 07:45 UTC8h 51m
2026-06-29 CFG440 FRA → YYC Jun 29, 11:25 UTCJun 29, 20:15 UTC8h 50m
2026-06-28 CFG039 CFU → FRA Jun 28, 23:54 UTCJun 29, 06:05 UTC6h 10m
2026-06-28 CFG038 FRA → BOS Jun 28, 12:39 UTCJun 28, 20:25 UTC7h 45m
2026-06-27 CFG091 - Jun 27, 23:50 UTCJun 28, 09:50 UTC10h 0m
2026-06-27 CFG090 - Jun 27, 11:35 UTCJun 27, 21:25 UTC9h 50m
2026-06-26 CFG039 CFU → FRA Jun 26, 21:20 UTCJun 27, 03:49 UTC6h 30m
2026-06-26 CFG038 FRA → BOS Jun 26, 11:05 UTCJun 26, 18:39 UTC7h 35m
2026-06-25 CFG441 YYC → FRA Jun 25, 23:49 UTCJun 26, 08:34 UTC8h 45m
2026-06-25 CFG440 FRA → YYC Jun 25, 12:15 UTCJun 25, 21:20 UTC9h 5m
2026-06-24 CFG017 JFK → FRA Jun 24, 21:04 UTCJun 25, 03:50 UTC6h 45m
2026-06-24 CFG016 FRA → JFK Jun 24, 10:35 UTCJun 24, 18:50 UTC8h 15m
2026-06-23 CFG289 - Jun 23, 16:50 UTCJun 24, 03:29 UTC10h 40m
2026-06-22 CFG288 - Jun 22, 20:14 UTCJun 23, 07:25 UTC11h 10m
2026-06-22 CFG315 MRU → FRA Jun 22, 11:50 UTCJun 22, 15:50 UTC4h 0m
2026-06-21 CFG315 MRU → FRA Jun 21, 16:19 UTCJun 22, 15:50 UTC23h 30m
2026-06-21 CFG314 FRA → MRU Jun 21, 14:59 UTCJun 22, 14:14 UTC23h 15m
2026-06-21 CFG051 - Jun 21, 01:14 UTCJun 21, 09:59 UTC8h 45m
2026-06-20 CFG050 FRA → ANC Jun 20, 13:44 UTCJun 20, 22:35 UTC8h 50m
2026-06-20 CFG455 - Jun 20, 03:39 UTCJun 20, 10:29 UTC6h 50m
2026-06-20 CFG455 - Jun 20, 01:09 UTCJun 20, 01:29 UTC20m
2026-06-19 CFG454 - Jun 19, 12:59 UTCJun 19, 22:30 UTC9h 30m
2026-06-19 CFG403 YYZ → FRA Jun 19, 00:14 UTCJun 19, 07:29 UTC7h 15m
2026-06-18 CFG402 FRA → YYZ Jun 18, 13:40 UTCJun 18, 21:40 UTC8h 0m
2026-06-18 CFG097 - Jun 18, 00:20 UTCJun 18, 11:00 UTC10h 40m
2026-06-17 CFG096 FRA → SFO Jun 17, 10:05 UTCJun 17, 21:05 UTC11h 0m

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

Mode-S 3C7A51 frequently asked

What is Mode-S code 3C7A51?
3C7A51 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ANRQ.
Where is Mode-S 3C7A51 registered?
Mode-S code 3C7A51 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C7A51 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C7A51, octal 17075121, decimal 3,963,473.
What flights does 3C7A51 operate?
Mode-S 3C7A51 has broadcast 20 distinct callsigns, including CFG2369, CFG315, CFG291, CFG282, CFG290.