Apparatus

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sensors Mode-S transponder

3C70CA

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ALFJ · BOEING 777-200LR

Hex
3C70CA
Octal
17070312
Decimal
3,961,034
Country
DE
Tail
D-ALFJ
Type
B77L
No current signal · last broadcast 11h ago
Flights observed
223
Distinct callsigns
20
Country
DE
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 3C70CA.

Country allocation

The ICAO 24-bit address 3C70CA 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
GEC8401 - 29 2026-07-10
GEC8400 - 25 2026-07-09
GEC8461 - 13 2026-07-01
GEC8385 - 12 2026-07-11
GEC8413 - 11 2026-07-01
GEC8264 Lufthansa Cargo 10 2026-05-21
GEC8223 - 10 2026-07-04
GEC8430 - 9 2026-07-13
GEC8460 - 8 2026-06-30
GEC8290 - 8 2026-07-12
GEC8346 - 6 2026-06-26
GEC8431 - 5 2026-07-14
GEC8427 - 5 2026-05-29
GEC8411 Lufthansa Cargo 5 2026-05-22
GEC8403 Lufthansa Cargo 5 2026-05-25
GEC8384 - 5 2026-07-10
GEC8291 - 5 2026-07-13
GEC8222 - 5 2026-07-03
GEC8387 - 4 2026-07-08
GEC8347 - 4 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GEC8431 - Jul 14, 03:55 UTCJul 14, 08:25 UTC4h 30m
2026-07-13 GEC8430 - Jul 13, 17:45 UTCJul 13, 17:55 UTC10m
2026-07-13 GEC8430 - Jul 13, 08:20 UTCJul 13, 14:45 UTC6h 25m
2026-07-13 GEC8291 - Jul 13, 01:20 UTCJul 13, 05:10 UTC3h 50m
2026-07-12 GEC8290 - Jul 12, 22:05 UTCJul 12, 23:00 UTC55m
2026-07-12 GEC8290 FRA → TLV Jul 12, 15:40 UTCJul 12, 19:15 UTC3h 35m
2026-07-11 GEC8385 ICN → FRA Jul 11, 17:30 UTCJul 12, 06:10 UTC12h 40m
2026-07-11 GEC8385 - Jul 11, 12:50 UTCJul 11, 14:40 UTC1h 50m
2026-07-10 GEC8384 FRA → NRT Jul 10, 20:25 UTCJul 11, 08:40 UTC12h 15m
2026-07-10 GEC8401 - Jul 10, 04:35 UTCJul 10, 16:25 UTC11h 50m
2026-07-09 GEC8401 - Jul 9, 19:05 UTCJul 10, 16:25 UTC21h 20m
2026-07-09 GEC8400 - Jul 9, 12:45 UTCJul 10, 12:30 UTC23h 45m
2026-07-09 GEC8400 - Jul 9, 10:35 UTCJul 10, 04:55 UTC18h 20m
2026-07-09 GEC8400 - Jul 9, 10:00 UTCJul 10, 04:55 UTC18h 55m
2026-07-08 GEC8387 ICN → FRA Jul 8, 17:40 UTCJul 9, 06:20 UTC12h 40m
2026-07-08 GEC8387 - Jul 8, 12:35 UTCJul 8, 14:30 UTC1h 55m
2026-07-07 GEC8386 FRA → NRT Jul 7, 20:35 UTCJul 8, 09:10 UTC12h 35m
2026-07-07 GEC8225 - Jul 7, 01:15 UTCJul 7, 15:50 UTC14h 35m
2026-07-06 GEC8224 FRA → MEX Jul 6, 10:30 UTCJul 6, 22:00 UTC11h 30m
2026-07-05 GEC8431 PEK → FRA Jul 5, 19:55 UTCJul 6, 07:05 UTC11h 10m
2026-07-05 GEC8430 - Jul 5, 16:30 UTCJul 5, 16:50 UTC20m
2026-07-05 GEC8430 - Jul 5, 07:05 UTCJul 5, 10:40 UTC3h 35m
2026-07-04 GEC8223 MTY → FRA Jul 4, 06:15 UTCJul 4, 15:55 UTC9h 40m
2026-07-04 GEC8223 - Jul 4, 03:05 UTCJul 4, 04:00 UTC55m
2026-07-03 GEC8222 - Jul 3, 12:20 UTCJul 3, 23:50 UTC11h 30m
2026-07-02 GEC8431 PEK → FRA Jul 2, 21:55 UTCJul 3, 09:00 UTC11h 5m
2026-07-02 GEC8430 - Jul 2, 09:05 UTCJul 2, 18:50 UTC9h 45m
2026-07-01 GEC8413 - Jul 1, 10:35 UTCJul 2, 06:20 UTC19h 45m
2026-07-01 GEC8413 - Jul 1, 08:35 UTCJul 2, 06:20 UTC21h 45m
2026-07-01 GEC8412 - Jul 1, 07:15 UTCJul 2, 06:20 UTC23h 5m
2026-07-01 GEC8461 - Jul 1, 00:45 UTCJul 1, 03:10 UTC2h 25m
2026-06-30 GEC8461 - Jun 30, 19:50 UTCJun 30, 22:05 UTC2h 15m
2026-06-30 GEC8461 - Jun 30, 11:40 UTCJun 30, 11:55 UTC15m
2026-06-30 GEC8460 - Jun 30, 07:15 UTCJun 30, 07:45 UTC30m
2026-06-29 GEC8460 - Jun 29, 20:40 UTCJun 30, 00:30 UTC3h 50m
2026-06-28 GEC8401 - Jun 28, 19:25 UTCJun 29, 13:49 UTC18h 25m
2026-06-28 GEC8401 - Jun 28, 13:00 UTCJun 29, 12:29 UTC23h 30m
2026-06-28 GEC8400 - Jun 28, 10:35 UTCJun 29, 10:29 UTC23h 55m
2026-06-28 GEC8400 - Jun 28, 10:10 UTCJun 29, 02:50 UTC16h 40m
2026-06-27 GEC8413 - Jun 27, 10:40 UTCJun 28, 06:05 UTC19h 25m
2026-06-27 GEC8413 - Jun 27, 08:35 UTCJun 28, 06:05 UTC21h 30m
2026-06-27 GEC8413 - Jun 27, 07:30 UTCJun 28, 06:05 UTC22h 35m
2026-06-27 GEC8347 - Jun 27, 00:44 UTCJun 27, 03:04 UTC2h 20m
2026-06-26 GEC8346 - Jun 26, 19:24 UTCJun 26, 21:45 UTC2h 20m
2026-06-25 GEC8401 - Jun 25, 19:29 UTCJun 26, 13:40 UTC18h 10m
2026-06-25 GEC8401 - Jun 25, 12:50 UTCJun 26, 12:29 UTC23h 40m
2026-06-25 GEC8400 - Jun 25, 10:35 UTCJun 26, 10:30 UTC23h 55m
2026-06-25 GEC8400 - Jun 25, 09:59 UTCJun 26, 02:34 UTC16h 35m
2026-06-24 GEC8387 ICN → FRA Jun 24, 17:55 UTCJun 25, 06:35 UTC12h 40m
2026-06-24 GEC8387 - Jun 24, 12:30 UTCJun 24, 14:34 UTC2h 5m

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

Mode-S 3C70CA frequently asked

What is Mode-S code 3C70CA?
3C70CA is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ALFJ.
Where is Mode-S 3C70CA registered?
Mode-S code 3C70CA is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C70CA broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C70CA, octal 17070312, decimal 3,961,034.
What flights does 3C70CA operate?
Mode-S 3C70CA has broadcast 20 distinct callsigns, including GEC8401, GEC8400, GEC8461, GEC8385, GEC8413.