sensors Mode-S transponder
3C70C8
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ALFH · BOEING 777-200LR
- Hex
- 3C70C8
- Octal
- 17070310
- Decimal
- 3,961,032
- Country
- DE
- Tail
- D-ALFH
- Type
- B77L
- Flights observed
- 102
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 3C70C8 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 |
|---|---|---|---|
| GEC8427 | - | 13 | 2026-05-08 |
| GEC8413 | Lufthansa Cargo | 8 | 2026-05-18 |
| GEC8426 | - | 7 | 2026-05-07 |
| GEC8221 | - | 7 | 2026-04-13 |
| GEC8387 | Lufthansa Cargo | 6 | 2026-05-27 |
| GEC8461 | Lufthansa Cargo | 5 | 2026-05-06 |
| GEC8403 | Lufthansa Cargo | 5 | 2026-05-14 |
| GEC8460 | - | 4 | 2026-05-05 |
| GEC8401 | Lufthansa Cargo | 4 | 2026-05-28 |
| GEC8220 | - | 4 | 2026-04-13 |
| GEC8412 | - | 3 | 2026-05-16 |
| GEC8402 | Lufthansa Cargo | 3 | 2026-05-13 |
| GEC8375 | - | 3 | 2026-05-24 |
| GEC8264 | Lufthansa Cargo | 3 | 2026-04-20 |
| GEC8161 | - | 3 | 2026-05-19 |
| GEC8160 | Lufthansa Cargo | 3 | 2026-05-18 |
| GEC8430 | Lufthansa Cargo | 2 | 2026-05-21 |
| GEC8400 | Lufthansa Cargo | 2 | 2026-05-28 |
| GEC8386 | Lufthansa Cargo | 2 | 2026-05-26 |
| GEC8363 | - | 2 | 2026-05-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | GEC8401 | PVG → FRA | May 28, 19:20 UTC | May 29, 13:30 UTC | 18h 10m |
| 2026-05-28 | GEC8401 | PVG → FRA | May 28, 12:05 UTC | May 29, 12:00 UTC | 23h 55m |
| 2026-05-28 | GEC8400 | FRA → PVG | May 28, 10:05 UTC | May 29, 10:00 UTC | 23h 55m |
| 2026-05-27 | GEC8387 | NRT → FRA | May 27, 18:50 UTC | May 28, 06:45 UTC | 11h 55m |
| 2026-05-27 | GEC8387 | NRT → FRA | May 27, 17:35 UTC | May 27, 17:50 UTC | 15m |
| 2026-05-27 | GEC8387 | NRT → FRA | May 27, 12:40 UTC | May 27, 14:35 UTC | 1h 55m |
| 2026-05-26 | GEC8386 | FRA → NRT | May 26, 20:29 UTC | May 27, 09:15 UTC | 12h 45m |
| 2026-05-25 | GEC8401 | PVG → FRA | May 25, 19:44 UTC | May 26, 14:00 UTC | 18h 15m |
| 2026-05-25 | GEC8401 | PVG → FRA | May 25, 12:05 UTC | May 26, 12:00 UTC | 23h 55m |
| 2026-05-25 | GEC8400 | FRA → PVG | May 25, 10:05 UTC | May 26, 09:59 UTC | 23h 55m |
| 2026-05-24 | GEC8375 | - | May 24, 13:30 UTC | May 25, 07:10 UTC | 17h 40m |
| 2026-05-24 | GEC8375 | - | May 24, 10:05 UTC | May 25, 07:10 UTC | 21h 5m |
| 2026-05-24 | GEC8375 | - | May 24, 08:05 UTC | May 25, 07:10 UTC | 23h 5m |
| 2026-05-24 | GEC8374 | - | May 24, 06:50 UTC | May 25, 06:00 UTC | 23h 10m |
| 2026-05-23 | GEC8223 | DFW → FRA | May 23, 06:00 UTC | May 23, 15:50 UTC | 9h 50m |
| 2026-05-23 | GEC8223 | DFW → FRA | May 23, 03:15 UTC | May 23, 04:20 UTC | 1h 5m |
| 2026-05-22 | GEC8222 | FRA → MEX | May 22, 12:20 UTC | May 22, 23:45 UTC | 11h 25m |
| 2026-05-21 | GEC8431 | PEK → FRA | May 21, 22:00 UTC | May 22, 09:10 UTC | 11h 10m |
| 2026-05-21 | GEC8430 | FRA → PEK | May 21, 18:45 UTC | May 21, 19:05 UTC | 20m |
| 2026-05-21 | GEC8430 | FRA → PEK | May 21, 09:00 UTC | May 21, 13:01 UTC | 4h 0m |
| 2026-05-19 | GEC8161 | JFK → FRA | May 19, 03:10 UTC | May 19, 10:15 UTC | 7h 5m |
| 2026-05-18 | GEC8160 | FRA → JFK | May 18, 16:05 UTC | May 18, 23:40 UTC | 7h 34m |
| 2026-05-18 | GEC8413 | ICN → FRA | May 18, 01:35 UTC | May 18, 05:50 UTC | 4h 15m |
| 2026-05-16 | GEC8412 | - | May 16, 08:55 UTC | May 16, 12:45 UTC | 3h 50m |
| 2026-05-16 | GEC8387 | NRT → FRA | May 16, 00:55 UTC | May 16, 05:40 UTC | 4h 45m |
| 2026-05-15 | GEC8387 | NRT → FRA | May 15, 17:20 UTC | May 15, 17:35 UTC | 15m |
| 2026-05-15 | GEC8387 | NRT → FRA | May 15, 12:35 UTC | May 15, 14:15 UTC | 1h 40m |
| 2026-05-14 | GEC8386 | FRA → NRT | May 14, 20:40 UTC | May 15, 09:35 UTC | 12h 55m |
| 2026-05-14 | GEC8403 | PVG → FRA | May 14, 05:10 UTC | May 14, 09:30 UTC | 4h 20m |
| 2026-05-13 | GEC8403 | PVG → FRA | May 13, 08:05 UTC | May 14, 08:00 UTC | 23h 55m |
| 2026-05-13 | GEC8402 | FRA → PVG | May 13, 06:05 UTC | May 14, 06:00 UTC | 23h 55m |
| 2026-05-13 | GEC8402 | FRA → PVG | May 13, 05:10 UTC | May 13, 08:45 UTC | 3h 35m |
| 2026-05-11 | GEC8363 | - | May 11, 18:05 UTC | May 12, 13:45 UTC | 19h 40m |
| 2026-05-11 | GEC8363 | - | May 11, 16:05 UTC | May 12, 13:45 UTC | 21h 41m |
| 2026-05-11 | GEC8161 | JFK → FRA | May 11, 04:40 UTC | May 11, 11:45 UTC | 7h 5m |
| 2026-05-10 | GEC8160 | FRA → JFK | May 10, 17:34 UTC | May 11, 01:20 UTC | 7h 45m |
| 2026-05-09 | GEC8403 | PVG → FRA | May 9, 22:20 UTC | May 10, 10:05 UTC | 11h 45m |
| 2026-05-09 | GEC8403 | PVG → FRA | May 9, 12:40 UTC | May 10, 10:05 UTC | 21h 25m |
| 2026-05-09 | GEC8403 | PVG → FRA | May 9, 08:05 UTC | May 10, 08:00 UTC | 23h 55m |
| 2026-05-09 | GEC8402 | FRA → PVG | May 9, 06:10 UTC | May 10, 06:00 UTC | 23h 50m |
| 2026-05-08 | GEC8427 | - | May 8, 09:30 UTC | May 8, 12:04 UTC | 2h 35m |
| 2026-05-07 | GEC8427 | - | May 7, 12:30 UTC | May 8, 06:50 UTC | 18h 20m |
| 2026-05-07 | GEC8427 | - | May 7, 08:05 UTC | May 8, 06:50 UTC | 22h 45m |
| 2026-05-07 | GEC8426 | - | May 7, 06:05 UTC | May 8, 05:59 UTC | 23h 55m |
| 2026-05-06 | GEC8461 | HKG → FRA | May 6, 00:35 UTC | May 6, 03:05 UTC | 2h 29m |
| 2026-05-05 | GEC8461 | HKG → FRA | May 5, 10:50 UTC | May 5, 11:05 UTC | 15m |
| 2026-05-05 | GEC8460 | - | May 5, 06:45 UTC | May 5, 07:10 UTC | 25m |
| 2026-05-04 | GEC8460 | - | May 4, 19:55 UTC | May 4, 23:45 UTC | 3h 50m |
| 2026-05-04 | GEC8161 | JFK → FRA | May 4, 04:39 UTC | May 4, 11:45 UTC | 7h 5m |
| 2026-05-03 | GEC8160 | FRA → JFK | May 3, 17:54 UTC | May 4, 01:40 UTC | 7h 45m |
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-ALFH page for operator, model, and routing details .