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
Broadcasting now · callsign GEC8161 · 35,000 ft
Flights observed
125
Distinct callsigns
20
Country
DE
Last broadcast
4h ago

Current position

3C70C1 is currently broadcasting. Map zoomed to live position.

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 10 2026-05-27
GEC8400 Lufthansa Cargo 10 2026-05-27
GEC8411 Lufthansa Cargo 9 2026-05-20
GEC8160 Lufthansa Cargo 9 2026-05-29
GEC8161 - 7 2026-05-29
GEC8443 - 6 2026-05-24
GEC8461 Lufthansa Cargo 5 2026-04-17
GEC8460 - 5 2026-04-16
GEC8403 Lufthansa Cargo 5 2026-05-12
GEC8463 Lufthansa Cargo 4 2026-05-17
GEC8431 Lufthansa Cargo 4 2026-05-05
GEC8430 Lufthansa Cargo 4 2026-05-05
GEC8402 Lufthansa Cargo 4 2026-05-11
GEC8387 Lufthansa Cargo 4 2026-05-19
GEC8290 Lufthansa Cargo 4 2026-05-26
GEC8442 - 3 2026-05-23
GEC8413 Lufthansa Cargo 3 2026-04-23
GEC8410 Lufthansa Cargo 3 2026-05-19
GEC8262 - 3 2026-04-26
GEC8462 - 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 GEC8160 FRA → JFK May 29, 17:40 UTCMay 30, 01:35 UTC7h 55m
2026-05-29 GEC8161 JFK → FRA May 29, 05:35 UTCMay 29, 12:40 UTC7h 5m
2026-05-28 GEC8160 FRA → JFK May 28, 18:30 UTCMay 29, 02:05 UTC7h 35m
2026-05-27 GEC8401 PVG → FRA May 27, 19:35 UTCMay 28, 13:50 UTC18h 15m
2026-05-27 GEC8401 PVG → FRA May 27, 12:20 UTCMay 28, 12:15 UTC23h 55m
2026-05-27 GEC8400 FRA → PVG May 27, 10:20 UTCMay 28, 10:15 UTC23h 55m
2026-05-27 GEC8400 FRA → PVG May 27, 10:10 UTCMay 28, 02:15 UTC16h 5m
2026-05-27 GEC8291 CAI → FRA May 27, 01:54 UTCMay 27, 05:35 UTC3h 40m
2026-05-26 GEC8290 FRA → FRA May 26, 17:55 UTCMay 26, 21:14 UTC3h 20m
2026-05-26 GEC8363 - May 26, 03:30 UTCMay 26, 12:14 UTC8h 45m
2026-05-25 GEC8362 FRA → BOM May 25, 16:05 UTCMay 25, 23:49 UTC7h 44m
2026-05-25 GEC8161 JFK → FRA May 25, 04:35 UTCMay 25, 11:35 UTC7h 0m
2026-05-24 GEC8160 FRA → JFK May 24, 17:35 UTCMay 24, 23:46 UTC6h 11m
2026-05-24 GEC8443 - May 24, 11:00 UTCMay 24, 13:15 UTC2h 15m
2026-05-24 GEC8443 - May 24, 08:50 UTCMay 24, 09:00 UTC10m
2026-05-24 GEC8443 - May 24, 06:50 UTCMay 24, 08:00 UTC1h 10m
2026-05-23 GEC8443 - May 23, 22:40 UTCMay 23, 22:50 UTC10m
2026-05-23 GEC8442 - May 23, 08:15 UTCMay 23, 12:10 UTC3h 55m
2026-05-22 GEC8161 JFK → FRA May 22, 05:40 UTCMay 22, 12:15 UTC6h 34m
2026-05-21 GEC8160 FRA → JFK May 21, 19:00 UTCMay 22, 03:15 UTC8h 15m
2026-05-21 GEC8225 GDL → FRA May 21, 06:30 UTCMay 21, 16:30 UTC10h 0m
2026-05-20 GEC8224 FRA → MEX May 20, 13:10 UTCMay 21, 01:10 UTC12h 0m
2026-05-20 GEC8411 PVG → FRA May 20, 10:10 UTCMay 20, 10:45 UTC35m
2026-05-20 GEC8411 PVG → FRA May 20, 04:50 UTCMay 20, 08:35 UTC3h 45m
2026-05-19 GEC8411 PVG → FRA May 19, 11:05 UTCMay 20, 08:35 UTC21h 31m
2026-05-19 GEC8410 FRA → CTU May 19, 08:20 UTCMay 20, 08:15 UTC23h 56m
2026-05-19 GEC8410 FRA → CTU May 19, 08:05 UTCMay 20, 06:00 UTC21h 56m
2026-05-19 GEC8387 NRT → FRA May 19, 00:35 UTCMay 19, 04:35 UTC4h 0m
2026-05-18 GEC8387 NRT → FRA May 18, 16:05 UTCMay 18, 16:20 UTC15m
2026-05-18 GEC8387 NRT → FRA May 18, 11:45 UTCMay 18, 13:30 UTC1h 45m
2026-05-17 GEC8386 FRA → NRT May 17, 20:20 UTCMay 18, 08:50 UTC12h 30m
2026-05-17 GEC8463 HKG → FRA May 17, 15:05 UTCMay 17, 17:20 UTC2h 15m
2026-05-17 GEC8463 HKG → FRA May 17, 13:01 UTCMay 17, 13:10 UTC10m
2026-05-17 GEC8463 HKG → FRA May 17, 11:01 UTCMay 17, 12:01 UTC1h 0m
2026-05-17 GEC8463 HKG → FRA May 17, 02:50 UTCMay 17, 03:05 UTC15m
2026-05-16 GEC8462 - May 16, 23:25 UTCMay 16, 23:45 UTC20m
2026-05-16 GEC8462 - May 16, 12:35 UTCMay 16, 16:20 UTC3h 45m
2026-05-15 GEC8411 PVG → FRA May 15, 12:20 UTCMay 16, 07:31 UTC19h 10m
2026-05-15 GEC8411 PVG → FRA May 15, 10:20 UTCMay 16, 07:31 UTC21h 10m
2026-05-15 GEC8411 PVG → FRA May 15, 08:40 UTCMay 16, 07:31 UTC22h 50m
2026-05-14 GEC8365 - May 14, 10:20 UTCMay 15, 05:35 UTC19h 15m
2026-05-14 GEC8364 FRA → FRA May 14, 08:50 UTCMay 15, 05:35 UTC20h 45m
2026-05-12 GEC8403 PVG → FRA May 12, 05:00 UTCMay 12, 09:25 UTC4h 25m
2026-05-11 GEC8403 PVG → FRA May 11, 08:45 UTCMay 12, 08:15 UTC23h 31m
2026-05-11 GEC8403 PVG → FRA May 11, 06:20 UTCMay 12, 06:15 UTC23h 56m
2026-05-11 GEC8402 FRA → PVG May 11, 05:10 UTCMay 11, 08:50 UTC3h 40m
2026-05-10 GEC8225 GDL → FRA May 10, 09:00 UTCMay 10, 18:55 UTC9h 55m
2026-05-09 GEC8224 FRA → MEX May 9, 15:30 UTCMay 10, 03:10 UTC11h 40m
2026-05-09 GEC8161 JFK → FRA May 9, 05:00 UTCMay 9, 12:05 UTC7h 5m
2026-05-08 GEC8160 FRA → JFK May 8, 17:45 UTCMay 9, 01:35 UTC7h 50m

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?
Yes. Mode-S 3C70C1 is currently airborne.
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, GEC8400, GEC8411, GEC8160, GEC8161.