sensors Mode-S transponder
7804C6
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2071 · BOEING 777-200LR
- Hex
- 7804C6
- Octal
- 36002306
- Decimal
- 7,865,542
- Country
- CN
- Tail
- B-2071
- Type
- B77L
- Flights observed
- 218
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 7804C6 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 |
|---|---|---|---|
| CSG2526 | - | 24 | 2026-07-11 |
| CSG2525 | - | 22 | 2026-07-11 |
| CSG2509 | - | 16 | 2026-07-16 |
| CSG2521 | - | 13 | 2026-07-05 |
| CSG2653 | - | 11 | 2026-06-30 |
| CSG2654 | - | 10 | 2026-07-10 |
| CSG2598 | - | 9 | 2026-07-16 |
| CSG2597 | - | 9 | 2026-07-16 |
| CSG2522 | - | 9 | 2026-07-05 |
| CSG2513 | - | 9 | 2026-07-13 |
| CSG2510 | - | 9 | 2026-07-06 |
| CSG2515 | - | 5 | 2026-05-11 |
| CSG2545 | - | 4 | 2026-05-29 |
| CSG2539 | - | 4 | 2026-05-30 |
| CSG2537 | - | 4 | 2026-05-25 |
| CSG2516 | - | 4 | 2026-05-11 |
| CSG2514 | - | 4 | 2026-07-14 |
| CSG2505 | - | 4 | 2026-05-23 |
| CSG2502 | - | 4 | 2026-07-13 |
| CSG2696 | - | 3 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CSG2538 | - | Jul 17, 20:00 UTC | Jul 18, 07:20 UTC | 11h 21m |
| 2026-07-16 | CSG2509 | - | Jul 16, 21:35 UTC | Jul 17, 17:09 UTC | 19h 35m |
| 2026-07-16 | CSG2509 | - | Jul 16, 20:49 UTC | Jul 17, 17:09 UTC | 20h 20m |
| 2026-07-16 | CSG2598 | - | Jul 16, 11:34 UTC | Jul 17, 07:40 UTC | 20h 5m |
| 2026-07-16 | CSG2598 | - | Jul 16, 09:55 UTC | Jul 17, 07:40 UTC | 21h 45m |
| 2026-07-16 | CSG2598 | - | Jul 16, 08:15 UTC | Jul 16, 22:49 UTC | 14h 35m |
| 2026-07-16 | CSG2597 | - | Jul 16, 01:55 UTC | Jul 16, 04:05 UTC | 2h 10m |
| 2026-07-14 | CSG2514 | - | Jul 14, 12:35 UTC | Jul 15, 00:10 UTC | 11h 34m |
| 2026-07-13 | CSG2513 | - | Jul 13, 15:35 UTC | Jul 14, 10:15 UTC | 18h 40m |
| 2026-07-13 | CSG2513 | - | Jul 13, 14:40 UTC | Jul 14, 10:15 UTC | 19h 35m |
| 2026-07-13 | CSG2513 | - | Jul 13, 09:55 UTC | Jul 14, 09:30 UTC | 23h 35m |
| 2026-07-13 | CSG2502 | - | Jul 13, 05:35 UTC | Jul 14, 00:50 UTC | 19h 15m |
| 2026-07-13 | CSG2502 | - | Jul 13, 03:40 UTC | Jul 14, 00:50 UTC | 21h 10m |
| 2026-07-13 | CSG2502 | - | Jul 13, 03:15 UTC | Jul 14, 00:50 UTC | 21h 35m |
| 2026-07-12 | CSG2501 | ANC → ORD | Jul 12, 19:10 UTC | Jul 13, 00:25 UTC | 5h 15m |
| 2026-07-12 | CSG2501 | - | Jul 12, 04:35 UTC | Jul 12, 17:50 UTC | 13h 15m |
| 2026-07-11 | CSG2501 | - | Jul 11, 21:35 UTC | Jul 12, 17:50 UTC | 20h 15m |
| 2026-07-11 | CSG2526 | - | Jul 11, 19:35 UTC | Jul 12, 17:50 UTC | 22h 15m |
| 2026-07-11 | CSG2526 | - | Jul 11, 17:35 UTC | Jul 12, 17:30 UTC | 23h 55m |
| 2026-07-11 | CSG2526 | - | Jul 11, 14:05 UTC | Jul 12, 04:45 UTC | 14h 40m |
| 2026-07-11 | CSG2525 | - | Jul 11, 04:15 UTC | Jul 11, 10:25 UTC | 6h 10m |
| 2026-07-10 | CSG2525 | - | Jul 10, 07:35 UTC | Jul 11, 02:50 UTC | 19h 15m |
| 2026-07-10 | CSG2654 | - | Jul 10, 06:25 UTC | Jul 11, 02:50 UTC | 20h 25m |
| 2026-07-10 | CSG2654 | - | Jul 10, 03:35 UTC | Jul 11, 02:50 UTC | 23h 15m |
| 2026-07-10 | CSG2654 | - | Jul 10, 02:40 UTC | Jul 11, 01:30 UTC | 22h 50m |
| 2026-07-09 | CSG2509 | - | Jul 9, 13:00 UTC | Jul 9, 23:55 UTC | 10h 55m |
| 2026-07-08 | CSG2509 | - | Jul 8, 21:15 UTC | Jul 9, 14:35 UTC | 17h 20m |
| 2026-07-08 | CSG2674 | - | Jul 8, 09:00 UTC | Jul 8, 22:00 UTC | 13h 0m |
| 2026-07-08 | CSG2673 | - | Jul 8, 00:55 UTC | Jul 8, 06:50 UTC | 5h 55m |
| 2026-07-07 | CSG2673 | - | Jul 7, 09:10 UTC | Jul 7, 23:25 UTC | 14h 15m |
| 2026-07-06 | CSG2673 | - | Jul 6, 23:35 UTC | Jul 7, 23:25 UTC | 23h 50m |
| 2026-07-06 | CSG2510 | - | Jul 6, 22:55 UTC | Jul 7, 17:35 UTC | 18h 40m |
| 2026-07-06 | CSG2509 | - | Jul 6, 01:45 UTC | Jul 6, 20:50 UTC | 19h 5m |
| 2026-07-05 | CSG2522 | - | Jul 5, 15:35 UTC | Jul 6, 11:50 UTC | 20h 15m |
| 2026-07-05 | CSG2522 | - | Jul 5, 14:20 UTC | Jul 6, 11:50 UTC | 21h 30m |
| 2026-07-05 | CSG2522 | - | Jul 5, 12:35 UTC | Jul 6, 11:30 UTC | 22h 55m |
| 2026-07-05 | CSG2521 | - | Jul 5, 03:10 UTC | Jul 5, 09:05 UTC | 5h 55m |
| 2026-07-04 | CSG2521 | - | Jul 4, 05:35 UTC | Jul 5, 02:00 UTC | 20h 25m |
| 2026-07-04 | CSG2521 | - | Jul 4, 04:30 UTC | Jul 5, 02:00 UTC | 21h 30m |
| 2026-07-03 | CSG2510 | - | Jul 3, 19:35 UTC | Jul 4, 19:30 UTC | 23h 55m |
| 2026-07-03 | CSG2510 | - | Jul 3, 18:35 UTC | Jul 4, 06:30 UTC | 11h 55m |
| 2026-07-02 | CSG2509 | - | Jul 2, 21:55 UTC | Jul 3, 15:45 UTC | 17h 50m |
| 2026-07-02 | CSG2509 | - | Jul 2, 11:45 UTC | Jul 3, 06:50 UTC | 19h 5m |
| 2026-07-02 | CSG2598 | - | Jul 2, 09:45 UTC | Jul 3, 06:50 UTC | 21h 5m |
| 2026-07-02 | CSG2598 | - | Jul 2, 08:20 UTC | Jul 3, 06:50 UTC | 22h 30m |
| 2026-07-02 | CSG2597 | - | Jul 2, 01:50 UTC | Jul 2, 03:55 UTC | 2h 5m |
| 2026-07-01 | CSG2597 | - | Jul 1, 08:35 UTC | Jul 2, 03:55 UTC | 19h 20m |
| 2026-06-30 | CSG2654 | - | Jun 30, 19:55 UTC | Jul 1, 08:35 UTC | 12h 40m |
| 2026-06-30 | CSG2653 | - | Jun 30, 07:25 UTC | Jun 30, 17:45 UTC | 10h 20m |
| 2026-06-29 | CSG2653 | - | Jun 29, 13:34 UTC | Jun 30, 08:50 UTC | 19h 16m |
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 B-2071 page for operator, model, and routing details .