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
- Flights observed
- 107
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 2h ago
Last known position
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 | Lufthansa Cargo | 10 | 2026-05-15 |
| GEC8264 | Lufthansa Cargo | 10 | 2026-05-21 |
| GEC8461 | Lufthansa Cargo | 6 | 2026-05-13 |
| GEC8400 | Lufthansa Cargo | 6 | 2026-05-14 |
| GEC8223 | Lufthansa Cargo | 6 | 2026-05-30 |
| GEC8427 | - | 5 | 2026-05-29 |
| GEC8411 | Lufthansa Cargo | 5 | 2026-05-22 |
| GEC8403 | Lufthansa Cargo | 5 | 2026-05-25 |
| GEC8385 | Lufthansa Cargo | 5 | 2026-05-19 |
| GEC8460 | - | 4 | 2026-05-12 |
| GEC8346 | Lufthansa Cargo | 4 | 2026-05-15 |
| GEC8426 | - | 3 | 2026-05-28 |
| GEC8413 | Lufthansa Cargo | 3 | 2026-05-13 |
| GEC8402 | Lufthansa Cargo | 3 | 2026-05-25 |
| GEC8265 | Lufthansa Cargo | 3 | 2026-05-21 |
| GEC8222 | Lufthansa Cargo | 3 | 2026-05-29 |
| GEC8430 | Lufthansa Cargo | 2 | 2026-04-28 |
| GEC8384 | Lufthansa Cargo | 2 | 2026-05-18 |
| GEC8365 | - | 2 | 2026-05-07 |
| GEC8347 | Lufthansa Cargo | 2 | 2026-05-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | GEC8223 | DFW → FRA | May 30, 07:15 UTC | May 30, 10:20 UTC | 3h 5m |
| 2026-05-30 | GEC8223 | DFW → FRA | May 30, 04:15 UTC | May 30, 05:20 UTC | 1h 5m |
| 2026-05-29 | GEC8222 | FRA → MEX | May 29, 14:35 UTC | May 30, 01:55 UTC | 11h 20m |
| 2026-05-29 | GEC8427 | - | May 29, 09:30 UTC | May 29, 12:10 UTC | 2h 40m |
| 2026-05-29 | GEC8427 | - | May 29, 07:20 UTC | May 29, 07:45 UTC | 25m |
| 2026-05-28 | GEC8426 | - | May 28, 06:35 UTC | May 29, 02:00 UTC | 19h 25m |
| 2026-05-28 | GEC8426 | - | May 28, 06:25 UTC | May 29, 02:00 UTC | 19h 35m |
| 2026-05-25 | GEC8403 | PVG → FRA | May 25, 15:00 UTC | May 26, 09:19 UTC | 18h 19m |
| 2026-05-25 | GEC8403 | PVG → FRA | May 25, 08:35 UTC | May 26, 08:30 UTC | 23h 55m |
| 2026-05-25 | GEC8402 | FRA → PVG | May 25, 06:35 UTC | May 26, 06:20 UTC | 23h 44m |
| 2026-05-25 | GEC8402 | FRA → PVG | May 25, 05:10 UTC | May 26, 02:10 UTC | 21h 0m |
| 2026-05-24 | GEC8263 | - | May 24, 06:50 UTC | May 24, 17:55 UTC | 11h 5m |
| 2026-05-24 | GEC8262 | - | May 24, 03:10 UTC | May 24, 03:35 UTC | 25m |
| 2026-05-23 | GEC8262 | - | May 23, 13:00 UTC | May 24, 00:55 UTC | 11h 56m |
| 2026-05-22 | GEC8411 | PVG → FRA | May 22, 12:35 UTC | May 23, 07:30 UTC | 18h 54m |
| 2026-05-22 | GEC8411 | PVG → FRA | May 22, 10:35 UTC | May 23, 07:30 UTC | 20h 54m |
| 2026-05-22 | GEC8410 | FRA → CTU | May 22, 08:50 UTC | May 23, 07:30 UTC | 22h 39m |
| 2026-05-21 | GEC8265 | EZE → FRA | May 21, 17:15 UTC | May 22, 05:50 UTC | 12h 35m |
| 2026-05-21 | GEC8264 | FRA → FRA | May 21, 14:30 UTC | May 21, 15:10 UTC | 40m |
| 2026-05-21 | GEC8264 | FRA → FRA | May 21, 10:25 UTC | May 21, 11:20 UTC | 55m |
| 2026-05-20 | GEC8264 | FRA → FRA | May 20, 20:30 UTC | May 21, 08:00 UTC | 11h 30m |
| 2026-05-19 | GEC8385 | NRT → FRA | May 19, 17:25 UTC | May 20, 06:10 UTC | 12h 46m |
| 2026-05-19 | GEC8385 | NRT → FRA | May 19, 12:40 UTC | May 19, 14:35 UTC | 1h 55m |
| 2026-05-18 | GEC8384 | FRA → NRT | May 18, 20:45 UTC | May 19, 09:35 UTC | 12h 50m |
| 2026-05-18 | GEC8221 | DFW → FRA | May 18, 07:30 UTC | May 18, 18:00 UTC | 10h 30m |
| 2026-05-17 | GEC8220 | FRA → MEX | May 17, 16:55 UTC | May 18, 04:30 UTC | 11h 35m |
| 2026-05-17 | GEC8427 | - | May 17, 10:05 UTC | May 17, 12:25 UTC | 2h 20m |
| 2026-05-17 | GEC8427 | - | May 17, 05:30 UTC | May 17, 06:35 UTC | 1h 5m |
| 2026-05-16 | GEC8427 | - | May 16, 08:36 UTC | May 17, 06:35 UTC | 22h 0m |
| 2026-05-16 | GEC8426 | - | May 16, 06:35 UTC | May 17, 06:30 UTC | 23h 55m |
| 2026-05-16 | GEC8347 | IST → FRA | May 16, 00:40 UTC | May 16, 03:10 UTC | 2h 30m |
| 2026-05-15 | GEC8346 | FRA → IST | May 15, 19:00 UTC | May 15, 21:00 UTC | 2h 0m |
| 2026-05-15 | GEC8401 | PVG → FRA | May 15, 13:00 UTC | May 15, 14:05 UTC | 1h 5m |
| 2026-05-14 | GEC8400 | FRA → PVG | May 14, 10:10 UTC | May 14, 13:55 UTC | 3h 45m |
| 2026-05-13 | GEC8413 | ICN → FRA | May 13, 10:35 UTC | May 14, 05:40 UTC | 19h 5m |
| 2026-05-13 | GEC8413 | ICN → FRA | May 13, 08:35 UTC | May 14, 05:40 UTC | 21h 5m |
| 2026-05-13 | GEC8413 | ICN → FRA | May 13, 07:15 UTC | May 14, 05:40 UTC | 22h 25m |
| 2026-05-13 | GEC8461 | HKG → FRA | May 13, 00:35 UTC | May 13, 03:10 UTC | 2h 35m |
| 2026-05-12 | GEC8461 | HKG → FRA | May 12, 18:45 UTC | May 12, 19:55 UTC | 1h 10m |
| 2026-05-12 | GEC8461 | HKG → FRA | May 12, 10:40 UTC | May 12, 10:55 UTC | 15m |
| 2026-05-12 | GEC8460 | - | May 12, 06:35 UTC | May 12, 07:05 UTC | 30m |
| 2026-05-11 | GEC8460 | - | May 11, 19:40 UTC | May 11, 22:35 UTC | 2h 54m |
| 2026-05-11 | GEC8371 | DEL → FRA | May 11, 05:40 UTC | May 11, 13:40 UTC | 8h 0m |
| 2026-05-10 | GEC8370 | FRA → DEL | May 10, 18:35 UTC | May 11, 01:50 UTC | 7h 15m |
| 2026-05-08 | GEC8401 | PVG → FRA | May 8, 19:15 UTC | May 9, 13:30 UTC | 18h 15m |
| 2026-05-08 | GEC8401 | PVG → FRA | May 8, 13:05 UTC | May 9, 12:30 UTC | 23h 25m |
| 2026-05-08 | GEC8400 | FRA → PVG | May 8, 10:35 UTC | May 9, 10:30 UTC | 23h 55m |
| 2026-05-08 | GEC8400 | FRA → PVG | May 8, 09:49 UTC | May 9, 02:15 UTC | 16h 25m |
| 2026-05-07 | GEC8365 | - | May 7, 10:35 UTC | May 8, 06:09 UTC | 19h 35m |
| 2026-05-07 | GEC8365 | FRA → FRA | May 7, 09:00 UTC | May 8, 06:09 UTC | 21h 10m |
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 .