sensors Mode-S transponder
3C70C4
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ALFD · BOEING 777-200LR
- Hex
- 3C70C4
- Octal
- 17070304
- Decimal
- 3,961,028
- Country
- DE
- Tail
- D-ALFD
- Type
- B77L
- Flights observed
- 120
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 3C70C4 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 |
|---|---|---|---|
| GEC8385 | Lufthansa Cargo | 16 | 2026-05-26 |
| GEC8401 | Lufthansa Cargo | 9 | 2026-05-21 |
| GEC8384 | Lufthansa Cargo | 9 | 2026-05-25 |
| GEC8403 | Lufthansa Cargo | 8 | 2026-05-06 |
| GEC8262 | - | 8 | 2026-05-01 |
| GEC8400 | Lufthansa Cargo | 7 | 2026-05-21 |
| GEC8413 | Lufthansa Cargo | 6 | 2026-05-20 |
| GEC8431 | Lufthansa Cargo | 5 | 2026-05-11 |
| GEC8402 | Lufthansa Cargo | 5 | 2026-05-30 |
| GEC8361 | - | 5 | 2026-04-18 |
| GEC8375 | - | 4 | 2026-04-15 |
| GEC8461 | Lufthansa Cargo | 3 | 2026-05-20 |
| GEC8430 | Lufthansa Cargo | 3 | 2026-05-10 |
| GEC8387 | Lufthansa Cargo | 3 | 2026-05-14 |
| GEC8374 | - | 3 | 2026-04-14 |
| GEC8360 | - | 3 | 2026-04-17 |
| GEC8263 | - | 3 | 2026-05-01 |
| GEC8460 | - | 2 | 2026-05-19 |
| GEC8225 | Lufthansa Cargo | 2 | 2026-05-15 |
| GEC8224 | Lufthansa Cargo | 2 | 2026-05-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | GEC8402 | FRA → PVG | May 30, 06:25 UTC | May 30, 15:50 UTC | 9h 25m |
| 2026-05-29 | GEC8153 | ZRH → FRA | May 29, 19:15 UTC | May 29, 19:50 UTC | 35m |
| 2026-05-29 | GEC8152 | FRA → VCV | May 29, 05:15 UTC | May 29, 05:45 UTC | 30m |
| 2026-05-26 | GEC8385 | NRT → FRA | May 26, 17:44 UTC | May 27, 06:40 UTC | 12h 55m |
| 2026-05-26 | GEC8385 | NRT → FRA | May 26, 12:45 UTC | May 26, 14:55 UTC | 2h 10m |
| 2026-05-25 | GEC8384 | FRA → NRT | May 25, 20:30 UTC | May 26, 08:54 UTC | 12h 25m |
| 2026-05-25 | GEC8221 | DFW → FRA | May 25, 08:00 UTC | May 25, 17:35 UTC | 9h 35m |
| 2026-05-24 | GEC8220 | FRA → MEX | May 24, 16:45 UTC | May 25, 04:00 UTC | 11h 15m |
| 2026-05-24 | GEC8385 | NRT → FRA | May 24, 01:40 UTC | May 24, 05:50 UTC | 4h 10m |
| 2026-05-23 | GEC8385 | NRT → FRA | May 23, 17:25 UTC | May 23, 17:40 UTC | 15m |
| 2026-05-23 | GEC8385 | NRT → FRA | May 23, 12:45 UTC | May 23, 14:45 UTC | 2h 0m |
| 2026-05-22 | GEC8384 | FRA → NRT | May 22, 20:30 UTC | May 23, 09:10 UTC | 12h 39m |
| 2026-05-21 | GEC8401 | PVG → FRA | May 21, 19:55 UTC | May 22, 14:35 UTC | 18h 40m |
| 2026-05-21 | GEC8401 | PVG → FRA | May 21, 13:25 UTC | May 22, 13:00 UTC | 23h 35m |
| 2026-05-21 | GEC8400 | FRA → PVG | May 21, 11:05 UTC | May 22, 11:00 UTC | 23h 55m |
| 2026-05-21 | GEC8400 | FRA → PVG | May 21, 10:15 UTC | May 22, 03:25 UTC | 17h 10m |
| 2026-05-20 | GEC8413 | ICN → FRA | May 20, 11:05 UTC | May 21, 05:50 UTC | 18h 45m |
| 2026-05-20 | GEC8413 | ICN → FRA | May 20, 09:05 UTC | May 21, 05:50 UTC | 20h 45m |
| 2026-05-20 | GEC8413 | ICN → FRA | May 20, 07:30 UTC | May 21, 05:50 UTC | 22h 20m |
| 2026-05-20 | GEC8461 | HKG → FRA | May 20, 00:55 UTC | May 20, 03:15 UTC | 2h 20m |
| 2026-05-19 | GEC8461 | HKG → FRA | May 19, 19:40 UTC | May 19, 20:45 UTC | 1h 5m |
| 2026-05-19 | GEC8461 | HKG → FRA | May 19, 11:25 UTC | May 19, 11:40 UTC | 15m |
| 2026-05-19 | GEC8460 | - | May 19, 06:40 UTC | May 19, 07:05 UTC | 25m |
| 2026-05-18 | GEC8460 | - | May 18, 19:25 UTC | May 18, 23:20 UTC | 3h 55m |
| 2026-05-17 | GEC8401 | PVG → FRA | May 17, 19:45 UTC | May 18, 13:30 UTC | 17h 45m |
| 2026-05-17 | GEC8401 | PVG → FRA | May 17, 13:35 UTC | May 18, 13:00 UTC | 23h 25m |
| 2026-05-17 | GEC8400 | FRA → PVG | May 17, 11:05 UTC | May 18, 10:30 UTC | 23h 25m |
| 2026-05-17 | GEC8400 | FRA → PVG | May 17, 10:20 UTC | May 18, 02:05 UTC | 15h 45m |
| 2026-05-17 | GEC8385 | NRT → FRA | May 17, 01:05 UTC | May 17, 05:45 UTC | 4h 40m |
| 2026-05-16 | GEC8385 | NRT → FRA | May 16, 17:10 UTC | May 16, 17:25 UTC | 15m |
| 2026-05-16 | GEC8385 | NRT → FRA | May 16, 12:35 UTC | May 16, 14:20 UTC | 1h 45m |
| 2026-05-15 | GEC8384 | FRA → NRT | May 15, 20:35 UTC | May 16, 09:40 UTC | 13h 6m |
| 2026-05-15 | GEC8225 | GDL → FRA | May 15, 00:50 UTC | May 15, 15:00 UTC | 14h 9m |
| 2026-05-14 | GEC8224 | FRA → MEX | May 14, 09:50 UTC | May 14, 21:00 UTC | 11h 10m |
| 2026-05-14 | GEC8387 | NRT → FRA | May 14, 01:10 UTC | May 14, 06:05 UTC | 4h 55m |
| 2026-05-13 | GEC8387 | NRT → FRA | May 13, 17:25 UTC | May 13, 17:40 UTC | 15m |
| 2026-05-13 | GEC8387 | NRT → FRA | May 13, 12:25 UTC | May 13, 14:15 UTC | 1h 50m |
| 2026-05-12 | GEC8386 | FRA → NRT | May 12, 20:15 UTC | May 13, 09:05 UTC | 12h 50m |
| 2026-05-12 | GEC8225 | GDL → FRA | May 12, 03:10 UTC | May 12, 16:20 UTC | 13h 10m |
| 2026-05-11 | GEC8224 | FRA → MEX | May 11, 12:45 UTC | May 11, 22:35 UTC | 9h 50m |
| 2026-05-11 | GEC8431 | PEK → FRA | May 11, 05:25 UTC | May 11, 09:40 UTC | 4h 15m |
| 2026-05-10 | GEC8431 | PEK → FRA | May 10, 13:05 UTC | May 11, 09:40 UTC | 20h 35m |
| 2026-05-10 | GEC8431 | PEK → FRA | May 10, 11:05 UTC | May 11, 09:40 UTC | 22h 35m |
| 2026-05-10 | GEC8430 | FRA → PEK | May 10, 09:45 UTC | May 11, 09:00 UTC | 23h 15m |
| 2026-05-10 | GEC8385 | NRT → FRA | May 10, 02:00 UTC | May 10, 06:30 UTC | 4h 30m |
| 2026-05-09 | - | - | May 9, 17:30 UTC | May 9, 17:40 UTC | 10m |
| 2026-05-09 | GEC8385 | NRT → FRA | May 9, 12:30 UTC | May 9, 14:40 UTC | 2h 10m |
| 2026-05-08 | GEC8384 | FRA → NRT | May 8, 20:45 UTC | May 9, 09:20 UTC | 12h 35m |
| 2026-05-08 | GEC8161 | JFK → FRA | May 8, 05:35 UTC | May 8, 12:20 UTC | 6h 45m |
| 2026-05-07 | GEC8160 | FRA → JFK | May 7, 17:30 UTC | May 8, 01:35 UTC | 8h 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-ALFD page for operator, model, and routing details .