sensors Mode-S transponder
3C4A07
ICAO 24-bit transponder address · allocated to Germany
- Hex
- 3C4A07
- Octal
- 17045007
- Decimal
- 3,951,111
- Country
- DE
- Flights observed
- 44
- Distinct callsigns
- 17
- Country
- DE
- Last broadcast
- Jul 26, 18:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 3C4A07 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 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DLH761 | - | 6 | 2026-07-18 |
| DLH760 | - | 6 | 2026-07-18 |
| BOE507 | - | 6 | 2026-06-04 |
| DLH797 | Lufthansa | 4 | 2026-07-22 |
| DLH752 | Lufthansa | 3 | 2026-07-26 |
| DLH9899 | Lufthansa | 2 | 2026-06-09 |
| DLH796 | - | 2 | 2026-07-21 |
| DLH590 | - | 2 | 2026-07-16 |
| DLH501 | Lufthansa | 2 | 2026-07-24 |
| DLH500 | Lufthansa | 2 | 2026-07-23 |
| DLH479 | - | 2 | 2026-07-20 |
| DLH478 | - | 2 | 2026-07-20 |
| DLH9911 | - | 1 | 2026-06-26 |
| DLH7JF | - | 1 | 2026-07-01 |
| DLH753 | - | 1 | 2026-07-08 |
| DLH591 | - | 1 | 2026-07-17 |
| DLH107 | - | 1 | 2026-07-01 |
Recent flights last 44
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | DLH752 | FRA → HYD | Jul 26, 11:30 UTC | Jul 26, 18:30 UTC | 7h 0m |
| 2026-07-24 | DLH501 | GIG → MUC | Jul 24, 19:40 UTC | Jul 25, 06:15 UTC | 10h 35m |
| 2026-07-23 | DLH500 | MUC → GIG | Jul 23, 20:50 UTC | Jul 24, 07:35 UTC | 10h 45m |
| 2026-07-22 | DLH797 | HKG → FRA | Jul 22, 18:00 UTC | Jul 23, 04:10 UTC | 10h 10m |
| 2026-07-22 | DLH797 | HKG → FRA | Jul 22, 15:50 UTC | Jul 22, 16:05 UTC | 15m |
| 2026-07-21 | DLH796 | - | Jul 21, 20:10 UTC | Jul 21, 23:35 UTC | 3h 25m |
| 2026-07-20 | DLH479 | YUL → FRA | Jul 20, 22:25 UTC | Jul 21, 04:50 UTC | 6h 25m |
| 2026-07-20 | DLH478 | - | Jul 20, 12:35 UTC | Jul 20, 19:35 UTC | 7h 0m |
| 2026-07-18 | DLH761 | - | Jul 18, 21:50 UTC | Jul 19, 05:20 UTC | 7h 30m |
| 2026-07-18 | DLH760 | FRA → DEL | Jul 18, 11:45 UTC | Jul 18, 18:45 UTC | 7h 0m |
| 2026-07-17 | DLH761 | - | Jul 17, 22:49 UTC | Jul 18, 06:20 UTC | 7h 31m |
| 2026-07-17 | DLH760 | - | Jul 17, 13:20 UTC | Jul 17, 20:25 UTC | 7h 5m |
| 2026-07-17 | DLH591 | - | Jul 17, 00:45 UTC | Jul 17, 04:10 UTC | 3h 25m |
| 2026-07-16 | DLH590 | - | Jul 16, 17:10 UTC | Jul 16, 17:25 UTC | 15m |
| 2026-07-16 | DLH590 | - | Jul 16, 10:00 UTC | Jul 16, 12:55 UTC | 2h 55m |
| 2026-07-15 | DLH761 | DEL → FRA | Jul 15, 21:40 UTC | Jul 16, 05:25 UTC | 7h 45m |
| 2026-07-15 | DLH760 | FRA → DEL | Jul 15, 12:10 UTC | Jul 15, 19:10 UTC | 7h 0m |
| 2026-07-13 | DLH752 | - | Jul 13, 11:50 UTC | Jul 14, 06:45 UTC | 18h 55m |
| 2026-07-13 | DLH752 | FRA → FRA | Jul 13, 11:35 UTC | Jul 14, 06:45 UTC | 19h 10m |
| 2026-07-12 | DLH761 | - | Jul 12, 21:45 UTC | Jul 13, 05:31 UTC | 7h 45m |
| 2026-07-12 | DLH760 | FRA → DEL | Jul 12, 11:55 UTC | Jul 12, 18:45 UTC | 6h 50m |
| 2026-07-11 | DLH761 | - | Jul 11, 21:40 UTC | Jul 12, 05:30 UTC | 7h 50m |
| 2026-07-11 | DLH760 | FRA → DEL | Jul 11, 12:30 UTC | Jul 11, 19:20 UTC | 6h 50m |
| 2026-07-10 | DLH797 | - | Jul 10, 18:05 UTC | Jul 11, 04:20 UTC | 10h 16m |
| 2026-07-10 | DLH797 | - | Jul 10, 16:00 UTC | Jul 10, 16:20 UTC | 20m |
| 2026-07-09 | DLH796 | FRA → HKG | Jul 9, 20:00 UTC | Jul 10, 06:30 UTC | 10h 30m |
| 2026-07-08 | DLH753 | FRA → FRA | Jul 8, 11:20 UTC | Jul 9, 06:40 UTC | 19h 20m |
| 2026-07-07 | DLH761 | - | Jul 7, 21:50 UTC | Jul 8, 05:35 UTC | 7h 45m |
| 2026-07-07 | DLH760 | FRA → DEL | Jul 7, 11:55 UTC | Jul 7, 18:50 UTC | 6h 55m |
| 2026-07-06 | DLH501 | - | Jul 6, 19:30 UTC | Jul 7, 06:25 UTC | 10h 55m |
| 2026-07-05 | DLH500 | - | Jul 5, 20:40 UTC | Jul 6, 07:40 UTC | 11h 0m |
| 2026-07-01 | DLH107 | - | Jul 1, 15:35 UTC | Jul 1, 16:10 UTC | 35m |
| 2026-07-01 | DLH7JF | - | Jul 1, 13:15 UTC | Jul 1, 14:00 UTC | 45m |
| 2026-07-01 | DLH479 | YUL → FRA | Jul 1, 00:05 UTC | Jul 1, 06:30 UTC | 6h 25m |
| 2026-06-30 | DLH478 | FRA → YUL | Jun 30, 14:35 UTC | Jun 30, 21:30 UTC | 6h 55m |
| 2026-06-26 | DLH9911 | BER → FRA | Jun 26, 18:44 UTC | Jun 26, 19:30 UTC | 45m |
| 2026-06-09 | DLH9899 | SKG → FRA | Jun 9, 16:45 UTC | Jun 9, 17:05 UTC | 20m |
| 2026-06-09 | DLH9899 | SKG → FRA | Jun 9, 08:05 UTC | Jun 9, 15:50 UTC | 7h 45m |
| 2026-06-04 | BOE507 | - | Jun 4, 16:45 UTC | Jun 4, 18:20 UTC | 1h 35m |
| 2026-05-30 | BOE507 | - | May 30, 21:05 UTC | May 30, 21:45 UTC | 40m |
| 2026-05-30 | BOE507 | - | May 30, 16:55 UTC | May 30, 20:20 UTC | 3h 25m |
| 2026-05-29 | BOE507 | - | May 29, 17:00 UTC | May 29, 17:45 UTC | 45m |
| 2026-05-16 | BOE507 | - | May 16, 17:05 UTC | May 16, 19:45 UTC | 2h 40m |
| 2026-04-24 | BOE507 | - | Apr 24, 20:20 UTC | Apr 25, 00:10 UTC | 3h 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.