Apparatus

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sensors Mode-S transponder

3C70C1

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C70C1
Octal
17070301
Decimal
3,961,025
Country
DE
Tail
D-ALFA
Type
B77L
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
249
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S 3C70C1.

Country allocation

The ICAO 24-bit address 3C70C1 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 Lufthansa Cargo 25 2026-07-24
GEC8461 - 19 2026-07-16
GEC8400 Lufthansa Cargo 19 2026-07-23
GEC8403 Lufthansa Cargo 13 2026-07-25
GEC8160 Lufthansa Cargo 12 2026-07-17
GEC8402 Lufthansa Cargo 11 2026-07-25
GEC8161 - 11 2026-07-18
GEC8460 - 9 2026-06-23
GEC8443 - 9 2026-07-01
GEC8411 Lufthansa Cargo 9 2026-05-20
GEC8385 Lufthansa Cargo 8 2026-07-03
GEC8225 - 7 2026-06-26
GEC8430 Lufthansa Cargo 6 2026-06-05
GEC8224 Lufthansa Cargo 6 2026-06-25
GEC8431 Lufthansa Cargo 5 2026-06-05
GEC8375 - 5 2026-07-12
GEC8466 - 4 2026-07-11
GEC8463 Lufthansa Cargo 4 2026-05-17
GEC8442 - 4 2026-06-30
GEC8429 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GEC8370 - Jul 26, 13:40 UTCJul 26, 20:50 UTC7h 10m
2026-07-25 GEC8403 PVG → FRA Jul 25, 15:15 UTCJul 26, 09:10 UTC17h 56m
2026-07-25 GEC8403 PVG → FRA Jul 25, 09:25 UTCJul 26, 08:15 UTC22h 50m
2026-07-25 GEC8402 FRA → PVG Jul 25, 06:20 UTCJul 26, 06:05 UTC23h 45m
2026-07-25 GEC8402 FRA → PVG Jul 25, 06:00 UTCJul 25, 22:25 UTC16h 25m
2026-07-25 GEC8347 IST → FRA Jul 25, 00:45 UTCJul 25, 03:15 UTC2h 30m
2026-07-24 GEC8346 FRA → IST Jul 24, 19:25 UTCJul 24, 21:45 UTC2h 20m
2026-07-24 GEC8401 PVG → FRA Jul 24, 05:20 UTCJul 24, 16:30 UTC11h 10m
2026-07-23 GEC8401 PVG → FRA Jul 23, 20:55 UTCJul 24, 16:30 UTC19h 35m
2026-07-23 GEC8401 PVG → FRA Jul 23, 14:25 UTCJul 24, 13:30 UTC23h 5m
2026-07-23 GEC8400 FRA → PVG Jul 23, 11:35 UTCJul 24, 05:30 UTC17h 55m
2026-07-22 GEC8403 PVG → FRA Jul 22, 14:30 UTCJul 23, 08:55 UTC18h 25m
2026-07-22 GEC8402 FRA → PVG Jul 22, 05:10 UTCJul 22, 22:05 UTC16h 55m
2026-07-19 GEC8473 HKG → FRA Jul 19, 15:20 UTCJul 19, 19:35 UTC4h 15m
2026-07-19 GEC8473 HKG → FRA Jul 19, 07:25 UTCJul 19, 07:35 UTC10m
2026-07-18 GEC8470 FRA → RUH Jul 18, 16:40 UTCJul 19, 03:50 UTC11h 10m
2026-07-18 GEC8161 JFK → FRA Jul 18, 04:50 UTCJul 18, 12:00 UTC7h 10m
2026-07-17 GEC8160 FRA → JFK Jul 17, 17:55 UTCJul 18, 01:34 UTC7h 40m
2026-07-17 GEC8429 - Jul 17, 00:04 UTCJul 17, 13:00 UTC12h 55m
2026-07-16 GEC8429 - Jul 16, 15:25 UTCJul 17, 13:00 UTC21h 35m
2026-07-16 GEC8428 - Jul 16, 06:20 UTCJul 17, 01:55 UTC19h 35m
2026-07-16 GEC8428 - Jul 16, 06:10 UTCJul 17, 01:55 UTC19h 45m
2026-07-16 GEC8461 - Jul 16, 01:00 UTCJul 16, 03:25 UTC2h 25m
2026-07-15 GEC8461 - Jul 15, 19:20 UTCJul 15, 20:40 UTC1h 20m
2026-07-15 GEC8461 - Jul 15, 11:30 UTCJul 15, 11:45 UTC15m
2026-07-15 GEC8450 - Jul 15, 06:20 UTCJul 15, 06:35 UTC15m
2026-07-15 GEC8450 - Jul 15, 05:40 UTCJul 15, 05:50 UTC10m
2026-07-14 GEC8450 - Jul 14, 19:05 UTCJul 14, 22:35 UTC3h 30m
2026-07-14 GEC8401 - Jul 14, 04:40 UTCJul 14, 16:10 UTC11h 30m
2026-07-13 GEC8401 - Jul 13, 19:40 UTCJul 14, 16:10 UTC20h 30m
2026-07-13 GEC8401 - Jul 13, 12:20 UTCJul 14, 12:15 UTC23h 55m
2026-07-13 GEC8400 - Jul 13, 10:25 UTCJul 14, 05:00 UTC18h 35m
2026-07-12 GEC8375 - Jul 12, 13:15 UTCJul 13, 07:15 UTC18h 0m
2026-07-12 GEC8375 - Jul 12, 08:20 UTCJul 13, 07:15 UTC22h 55m
2026-07-12 GEC8374 - Jul 12, 06:45 UTCJul 13, 06:15 UTC23h 30m
2026-07-12 GEC8461 - Jul 12, 00:40 UTCJul 12, 03:10 UTC2h 30m
2026-07-11 GEC8461 - Jul 11, 20:55 UTCJul 11, 21:10 UTC15m
2026-07-11 GEC8461 - Jul 11, 18:45 UTCJul 11, 20:05 UTC1h 20m
2026-07-11 GEC8461 - Jul 11, 11:00 UTCJul 11, 11:15 UTC15m
2026-07-11 GEC8466 - Jul 11, 07:00 UTCJul 11, 07:35 UTC35m
2026-07-11 GEC8466 - Jul 11, 03:15 UTCJul 11, 05:10 UTC1h 55m
2026-07-11 GEC8466 - Jul 11, 01:45 UTCJul 11, 01:55 UTC10m
2026-07-10 GEC8466 FRA → BOM Jul 10, 15:45 UTCJul 10, 23:20 UTC7h 36m
2026-07-10 GEC8161 JFK → FRA Jul 10, 05:50 UTCJul 10, 12:40 UTC6h 50m
2026-07-09 GEC8160 FRA → JFK Jul 9, 17:50 UTCJul 10, 01:40 UTC7h 50m
2026-07-09 GEC8161 JFK → FRA Jul 9, 05:35 UTCJul 9, 12:30 UTC6h 55m
2026-07-08 GEC8160 FRA → JFK Jul 8, 18:45 UTCJul 9, 02:30 UTC7h 45m
2026-07-08 GEC8401 - Jul 8, 02:50 UTCJul 8, 14:30 UTC11h 40m
2026-07-07 GEC8401 - Jul 7, 19:20 UTCJul 8, 14:30 UTC19h 10m
2026-07-07 GEC8401 - Jul 7, 12:20 UTCJul 8, 12:15 UTC23h 55m

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

Mode-S 3C70C1 frequently asked

What is Mode-S code 3C70C1?
3C70C1 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ALFA.
Where is Mode-S 3C70C1 registered?
Mode-S code 3C70C1 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C70C1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C70C1, octal 17070301, decimal 3,961,025.
What flights does 3C70C1 operate?
Mode-S 3C70C1 has broadcast 20 distinct callsigns, including GEC8401, GEC8461, GEC8400, GEC8403, GEC8160.