Apparatus

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sensors Mode-S transponder

3C70AA

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ALEJ · AIRBUS A-330-200

Hex
3C70AA
Octal
17070252
Decimal
3,961,002
Country
DE
Tail
D-ALEJ
Type
A332
No current signal · last broadcast 3h ago
Flights observed
124
Distinct callsigns
20
Country
DE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 3C70AA.

Country allocation

The ICAO 24-bit address 3C70AA 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
BCS120 European Air Transport 13 2026-05-30
BCS644 - 12 2026-05-23
BCS675 - 10 2026-05-10
BCS62A European Air Transport 9 2026-05-28
BCS081 European Air Transport 9 2026-05-29
BCS082 European Air Transport 6 2026-05-28
BCS361 European Air Transport 5 2026-05-26
BCS378 European Air Transport 4 2026-05-07
BCS364 European Air Transport 4 2026-05-26
BCS080 European Air Transport 4 2026-05-17
BCS991 European Air Transport 3 2026-05-06
BCS6TP European Air Transport 3 2026-05-07
BCS679 - 3 2026-04-28
BCS673 - 3 2026-05-09
BCS3QL European Air Transport 3 2026-05-29
BCS354 European Air Transport 3 2026-05-06
BCS694 - 2 2026-04-29
BCS674 European Air Transport 2 2026-05-24
BCS671 - 2 2026-04-30
BCS642 - 2 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BCS120 LEJ → BRU May 30, 01:20 UTCMay 30, 02:15 UTC55m
2026-05-29 BCS3QL BRU → LEJ May 29, 22:25 UTCMay 29, 23:25 UTC1h 0m
2026-05-29 BCS081 BRU → LOS May 29, 04:55 UTCMay 29, 20:10 UTC15h 15m
2026-05-29 BCS120 LEJ → BRU May 29, 01:55 UTCMay 29, 02:45 UTC50m
2026-05-28 BCS62A BRU → LEJ May 28, 22:20 UTCMay 28, 23:20 UTC1h 0m
2026-05-28 BCS082 LOS → LOS May 28, 05:00 UTCMay 28, 20:05 UTC15h 5m
2026-05-28 BCS120 LEJ → BRU May 28, 02:00 UTCMay 28, 02:55 UTC55m
2026-05-27 BCS62A BRU → LEJ May 27, 22:10 UTCMay 27, 23:10 UTC1h 0m
2026-05-27 BCS082 LOS → LOS May 27, 04:59 UTCMay 27, 20:20 UTC15h 21m
2026-05-27 BCS120 LEJ → BRU May 27, 02:04 UTCMay 27, 02:59 UTC55m
2026-05-26 BCS361 JFK → LEJ May 26, 13:04 UTCMay 26, 20:15 UTC7h 10m
2026-05-26 BCS364 LEJ → CVG May 26, 01:40 UTCMay 26, 09:59 UTC8h 20m
2026-05-24 BCS831 ATH → BLQ May 24, 20:50 UTCMay 25, 04:50 UTC8h 0m
2026-05-24 BCS830 LEJ → BRU May 24, 09:15 UTCMay 24, 18:30 UTC9h 15m
2026-05-24 BCS674 HAN → HKG May 24, 02:35 UTCMay 24, 06:40 UTC4h 5m
2026-05-23 BCS674 HAN → HKG May 23, 15:55 UTCMay 23, 16:10 UTC15m
2026-05-23 BCS644 LEJ → HKG May 23, 02:20 UTCMay 23, 13:40 UTC11h 19m
2026-05-22 BCS850 EMA → BRU May 22, 22:05 UTCMay 22, 22:55 UTC50m
2026-05-22 BCS081 BRU → LOS May 22, 05:00 UTCMay 22, 20:20 UTC15h 20m
2026-05-22 BCS120 LEJ → BRU May 22, 02:25 UTCMay 22, 03:20 UTC55m
2026-05-21 BCS62A BRU → LEJ May 21, 22:30 UTCMay 21, 23:30 UTC1h 0m
2026-05-21 BCS082 LOS → LOS May 21, 05:05 UTCMay 21, 20:05 UTC15h 0m
2026-05-21 BCS120 LEJ → BRU May 21, 01:50 UTCMay 21, 02:45 UTC55m
2026-05-20 BCS62A BRU → LEJ May 20, 22:20 UTCMay 20, 23:25 UTC1h 5m
2026-05-20 BCS082 LOS → LOS May 20, 05:00 UTCMay 20, 19:55 UTC14h 55m
2026-05-20 BCS081 BRU → LOS May 20, 04:40 UTCMay 20, 04:45 UTC5m
2026-05-20 BCS120 LEJ → BRU May 20, 02:05 UTCMay 20, 03:00 UTC55m
2026-05-19 BCS361 JFK → LEJ May 19, 12:50 UTCMay 19, 20:10 UTC7h 20m
2026-05-19 BCS364 LEJ → CVG May 19, 01:35 UTCMay 19, 09:25 UTC7h 50m
2026-05-18 BCS62A BRU → LEJ May 18, 22:15 UTCMay 18, 23:20 UTC1h 5m
2026-05-18 BCS082 LOS → LOS May 18, 17:50 UTCMay 18, 20:05 UTC2h 14m
2026-05-17 BCS082 LOS → LOS May 17, 22:35 UTCMay 18, 20:05 UTC21h 29m
2026-05-17 BCS081 BRU → LOS May 17, 21:25 UTCMay 18, 20:05 UTC22h 39m
2026-05-17 BCS120 LEJ → BRU May 17, 18:20 UTCMay 17, 19:20 UTC1h 0m
2026-05-17 BCS62A BRU → LEJ May 17, 11:45 UTCMay 17, 12:45 UTC1h 0m
2026-05-17 BCS080 ACC → LOS May 17, 01:05 UTCMay 17, 02:55 UTC1h 50m
2026-05-16 BCS080 ACC → LOS May 16, 06:35 UTCMay 17, 02:55 UTC20h 20m
2026-05-16 BCS081 BRU → LOS May 16, 05:51 UTCMay 17, 02:55 UTC21h 5m
2026-05-16 BCS120 LEJ → BRU May 16, 01:20 UTCMay 16, 02:10 UTC50m
2026-05-15 BCS3QL BRU → LEJ May 15, 22:05 UTCMay 15, 23:05 UTC1h 0m
2026-05-15 BCS081 BRU → LOS May 15, 05:00 UTCMay 15, 19:45 UTC14h 44m
2026-05-15 BCS120 LEJ → BRU May 15, 01:50 UTCMay 15, 02:40 UTC50m
2026-05-14 BCS62A BRU → LEJ May 14, 22:15 UTCMay 14, 23:15 UTC1h 0m
2026-05-14 BCS081 BRU → LOS May 14, 05:00 UTCMay 14, 19:40 UTC14h 40m
2026-05-14 BCS120 LEJ → BRU May 14, 01:50 UTCMay 14, 02:50 UTC1h 0m
2026-05-13 BCS361 JFK → LEJ May 13, 13:05 UTCMay 13, 20:25 UTC7h 20m
2026-05-13 BCS364 LEJ → CVG May 13, 01:45 UTCMay 13, 10:10 UTC8h 25m
2026-05-12 BCS361 JFK → LEJ May 12, 17:55 UTCMay 12, 19:55 UTC2h 0m
2026-05-12 BCS361 JFK → LEJ May 12, 12:55 UTCMay 12, 14:25 UTC1h 30m
2026-05-12 BCS364 LEJ → CVG May 12, 02:45 UTCMay 12, 10:10 UTC7h 25m

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

Mode-S 3C70AA frequently asked

What is Mode-S code 3C70AA?
3C70AA is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ALEJ.
Where is Mode-S 3C70AA registered?
Mode-S code 3C70AA is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C70AA broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C70AA, octal 17070252, decimal 3,961,002.
What flights does 3C70AA operate?
Mode-S 3C70AA has broadcast 20 distinct callsigns, including BCS120, BCS644, BCS675, BCS62A, BCS081.