sensors Mode-S transponder
3C70C7
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ALFG · BOEING 777-200LR
- Hex
- 3C70C7
- Octal
- 17070307
- Decimal
- 3,961,031
- Country
- DE
- Tail
- D-ALFG
- Type
- B77L
- Flights observed
- 269
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- Jul 26, 17:25 UTC
Last known position
Country allocation
The ICAO 24-bit address 3C70C7 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 |
|---|---|---|---|
| GEC8430 | - | 18 | 2026-07-12 |
| GEC8431 | - | 16 | 2026-07-13 |
| GEC8264 | - | 16 | 2026-07-09 |
| GEC8461 | Lufthansa Cargo | 15 | 2026-06-10 |
| GEC8401 | Lufthansa Cargo | 15 | 2026-07-22 |
| GEC8290 | - | 12 | 2026-07-21 |
| GEC8262 | - | 12 | 2026-07-19 |
| GEC8223 | Lufthansa Cargo | 12 | 2026-05-27 |
| GEC8443 | - | 10 | 2026-07-15 |
| GEC8400 | Lufthansa Cargo | 9 | 2026-07-22 |
| GEC8385 | - | 9 | 2026-07-16 |
| GEC8222 | Lufthansa Cargo | 9 | 2026-05-26 |
| GEC8411 | Lufthansa Cargo | 8 | 2026-07-17 |
| GEC8403 | - | 8 | 2026-07-01 |
| GEC8383 | - | 8 | 2026-07-26 |
| GEC8265 | - | 8 | 2026-07-09 |
| GEC8371 | - | 7 | 2026-07-06 |
| GEC8291 | - | 7 | 2026-07-03 |
| GEC8263 | - | 7 | 2026-07-19 |
| GEC8460 | - | 6 | 2026-06-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | GEC8383 | - | Jul 26, 16:15 UTC | Jul 26, 17:25 UTC | 1h 10m |
| 2026-07-26 | GEC8383 | - | Jul 26, 12:40 UTC | Jul 26, 14:25 UTC | 1h 45m |
| 2026-07-25 | GEC8382 | FRA → NRT | Jul 25, 20:40 UTC | Jul 26, 09:10 UTC | 12h 31m |
| 2026-07-24 | GEC8161 | JFK → FRA | Jul 24, 05:30 UTC | Jul 24, 12:10 UTC | 6h 40m |
| 2026-07-23 | GEC8160 | FRA → JFK | Jul 23, 17:55 UTC | Jul 24, 01:25 UTC | 7h 30m |
| 2026-07-22 | GEC8401 | PVG → FRA | Jul 22, 19:05 UTC | Jul 23, 13:30 UTC | 18h 25m |
| 2026-07-22 | GEC8401 | PVG → FRA | Jul 22, 11:50 UTC | Jul 23, 11:45 UTC | 23h 55m |
| 2026-07-22 | GEC8400 | FRA → PVG | Jul 22, 10:20 UTC | Jul 23, 09:45 UTC | 23h 25m |
| 2026-07-22 | GEC8400 | FRA → PVG | Jul 22, 03:50 UTC | Jul 23, 02:25 UTC | 22h 35m |
| 2026-07-22 | GEC8400 | FRA → PVG | Jul 22, 03:25 UTC | Jul 22, 19:30 UTC | 16h 5m |
| 2026-07-21 | GEC8290 | - | Jul 21, 21:00 UTC | Jul 21, 21:40 UTC | 40m |
| 2026-07-21 | GEC8290 | FRA → TLV | Jul 21, 15:55 UTC | Jul 21, 19:20 UTC | 3h 25m |
| 2026-07-20 | GEC8163 | - | Jul 20, 20:55 UTC | Jul 21, 03:40 UTC | 6h 44m |
| 2026-07-20 | GEC8162 | - | Jul 20, 14:35 UTC | Jul 20, 16:25 UTC | 1h 50m |
| 2026-07-20 | GEC8162 | - | Jul 20, 08:20 UTC | Jul 20, 14:30 UTC | 6h 10m |
| 2026-07-19 | GEC8263 | - | Jul 19, 07:15 UTC | Jul 19, 18:05 UTC | 10h 50m |
| 2026-07-19 | GEC8262 | - | Jul 19, 03:15 UTC | Jul 19, 03:45 UTC | 30m |
| 2026-07-18 | GEC8262 | - | Jul 18, 23:40 UTC | Jul 19, 01:30 UTC | 1h 50m |
| 2026-07-18 | GEC8262 | - | Jul 18, 13:35 UTC | Jul 18, 19:15 UTC | 5h 40m |
| 2026-07-17 | GEC8411 | PVG → FRA | Jul 17, 12:00 UTC | Jul 18, 07:30 UTC | 19h 31m |
| 2026-07-17 | GEC8411 | PVG → FRA | Jul 17, 09:50 UTC | Jul 18, 07:30 UTC | 21h 41m |
| 2026-07-17 | GEC8411 | PVG → FRA | Jul 17, 08:54 UTC | Jul 18, 07:30 UTC | 22h 36m |
| 2026-07-16 | GEC8385 | - | Jul 16, 18:50 UTC | Jul 17, 06:25 UTC | 11h 35m |
| 2026-07-16 | GEC8385 | - | Jul 16, 17:40 UTC | Jul 16, 18:00 UTC | 20m |
| 2026-07-16 | GEC8385 | - | Jul 16, 12:40 UTC | Jul 16, 14:29 UTC | 1h 50m |
| 2026-07-15 | GEC8384 | - | Jul 15, 20:40 UTC | Jul 16, 08:40 UTC | 12h 0m |
| 2026-07-15 | GEC8443 | - | Jul 15, 10:35 UTC | Jul 15, 13:05 UTC | 2h 30m |
| 2026-07-15 | GEC8443 | - | Jul 15, 06:05 UTC | Jul 15, 08:25 UTC | 2h 20m |
| 2026-07-14 | GEC8443 | - | Jul 14, 22:00 UTC | Jul 14, 22:10 UTC | 10m |
| 2026-07-14 | GEC8442 | - | Jul 14, 18:20 UTC | Jul 14, 18:30 UTC | 10m |
| 2026-07-14 | GEC8442 | - | Jul 14, 07:40 UTC | Jul 14, 11:15 UTC | 3h 35m |
| 2026-07-14 | GEC8347 | - | Jul 14, 00:35 UTC | Jul 14, 03:10 UTC | 2h 35m |
| 2026-07-13 | GEC8346 | - | Jul 13, 19:05 UTC | Jul 13, 21:25 UTC | 2h 20m |
| 2026-07-13 | GEC8431 | - | Jul 13, 02:45 UTC | Jul 13, 07:01 UTC | 4h 15m |
| 2026-07-12 | GEC8431 | - | Jul 12, 19:50 UTC | Jul 12, 20:05 UTC | 15m |
| 2026-07-12 | GEC8430 | - | Jul 12, 16:10 UTC | Jul 12, 16:35 UTC | 25m |
| 2026-07-12 | GEC8430 | - | Jul 12, 07:10 UTC | Jul 12, 09:10 UTC | 2h 0m |
| 2026-07-11 | GEC8411 | - | Jul 11, 05:31 UTC | Jul 11, 10:00 UTC | 4h 30m |
| 2026-07-10 | GEC8411 | - | Jul 10, 11:50 UTC | Jul 11, 10:00 UTC | 22h 10m |
| 2026-07-10 | GEC8411 | - | Jul 10, 09:50 UTC | Jul 11, 09:45 UTC | 23h 55m |
| 2026-07-10 | GEC8410 | - | Jul 10, 09:00 UTC | Jul 11, 06:50 UTC | 21h 50m |
| 2026-07-09 | GEC8265 | - | Jul 9, 17:15 UTC | Jul 10, 06:20 UTC | 13h 5m |
| 2026-07-09 | GEC8264 | - | Jul 9, 14:40 UTC | Jul 9, 15:05 UTC | 25m |
| 2026-07-09 | GEC8264 | - | Jul 9, 10:35 UTC | Jul 9, 11:20 UTC | 45m |
| 2026-07-08 | GEC8264 | - | Jul 8, 20:30 UTC | Jul 9, 07:35 UTC | 11h 5m |
| 2026-07-07 | GEC8363 | - | Jul 7, 03:15 UTC | Jul 7, 12:10 UTC | 8h 55m |
| 2026-07-06 | GEC8362 | - | Jul 6, 16:05 UTC | Jul 7, 00:00 UTC | 7h 55m |
| 2026-07-06 | GEC8371 | DEL → FRA | Jul 6, 05:40 UTC | Jul 6, 13:40 UTC | 8h 0m |
| 2026-07-05 | GEC8370 | - | Jul 5, 19:20 UTC | Jul 6, 02:15 UTC | 6h 55m |
| 2026-07-05 | GEC8401 | - | Jul 5, 03:20 UTC | Jul 5, 14:35 UTC | 11h 15m |
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-ALFG page for operator, model, and routing details .