sensors Mode-S transponder
7805AA
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2075 · BOEING 777-200LR
- Hex
- 7805AA
- Octal
- 36002652
- Decimal
- 7,865,770
- Country
- CN
- Tail
- B-2075
- Type
- B77L
- Flights observed
- 202
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 7805AA 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 |
|---|---|---|---|
| CSG2545 | - | 24 | 2026-06-14 |
| CSG2543 | - | 19 | 2026-07-16 |
| CSG2544 | - | 14 | 2026-07-16 |
| CSG2535 | - | 10 | 2026-07-17 |
| CSG2546 | - | 9 | 2026-06-14 |
| CSG2539 | - | 8 | 2026-07-12 |
| CSG2540 | - | 7 | 2026-07-12 |
| CSG2529 | - | 7 | 2026-06-09 |
| CSG2530 | - | 6 | 2026-06-10 |
| CSG2505 | - | 6 | 2026-07-03 |
| CSG2698 | - | 5 | 2026-06-25 |
| CSG2697 | - | 5 | 2026-06-25 |
| CSG2536 | - | 5 | 2026-07-17 |
| CSG2515 | - | 5 | 2026-06-26 |
| CSG2694 | - | 4 | 2026-06-22 |
| CSG2691 | - | 4 | 2026-06-07 |
| CSG2518 | - | 4 | 2026-06-24 |
| CSG2507 | - | 4 | 2026-05-10 |
| CSG2501 | - | 4 | 2026-07-07 |
| CSG2692 | - | 3 | 2026-06-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CSG2536 | - | Jul 17, 22:20 UTC | Jul 17, 23:25 UTC | 1h 5m |
| 2026-07-17 | CSG2535 | - | Jul 17, 15:00 UTC | Jul 17, 19:49 UTC | 4h 50m |
| 2026-07-17 | CSG2535 | - | Jul 17, 06:15 UTC | Jul 17, 13:35 UTC | 7h 20m |
| 2026-07-16 | CSG2535 | - | Jul 16, 15:55 UTC | Jul 17, 13:35 UTC | 21h 40m |
| 2026-07-16 | CSG2535 | - | Jul 16, 10:35 UTC | Jul 17, 07:50 UTC | 21h 15m |
| 2026-07-16 | CSG2544 | - | Jul 16, 09:55 UTC | Jul 17, 07:50 UTC | 21h 55m |
| 2026-07-16 | CSG2543 | - | Jul 16, 00:55 UTC | Jul 16, 06:50 UTC | 5h 55m |
| 2026-07-15 | CSG2543 | - | Jul 15, 16:15 UTC | Jul 15, 23:25 UTC | 7h 10m |
| 2026-07-14 | CSG2544 | - | Jul 14, 06:35 UTC | Jul 14, 13:05 UTC | 6h 30m |
| 2026-07-13 | CSG2543 | - | Jul 13, 21:45 UTC | Jul 14, 04:10 UTC | 6h 25m |
| 2026-07-13 | CSG2543 | - | Jul 13, 00:35 UTC | Jul 13, 20:25 UTC | 19h 50m |
| 2026-07-12 | CSG2540 | - | Jul 12, 23:40 UTC | Jul 13, 20:25 UTC | 20h 45m |
| 2026-07-12 | CSG2540 | - | Jul 12, 14:35 UTC | Jul 13, 13:05 UTC | 22h 30m |
| 2026-07-12 | CSG2540 | - | Jul 12, 13:55 UTC | Jul 13, 01:30 UTC | 11h 35m |
| 2026-07-12 | CSG2539 | - | Jul 12, 06:35 UTC | Jul 12, 11:20 UTC | 4h 45m |
| 2026-07-11 | CSG2539 | - | Jul 11, 21:50 UTC | Jul 12, 05:20 UTC | 7h 30m |
| 2026-07-11 | CSG2544 | - | Jul 11, 16:35 UTC | Jul 11, 16:45 UTC | 10m |
| 2026-07-11 | CSG2544 | - | Jul 11, 01:40 UTC | Jul 11, 14:35 UTC | 12h 55m |
| 2026-07-10 | CSG2543 | ANC → JFK | Jul 10, 16:35 UTC | Jul 10, 22:55 UTC | 6h 21m |
| 2026-07-10 | CSG2543 | - | Jul 10, 07:55 UTC | Jul 10, 15:20 UTC | 7h 25m |
| 2026-07-07 | CSG2502 | - | Jul 7, 12:15 UTC | Jul 8, 01:05 UTC | 12h 50m |
| 2026-07-07 | CSG2501 | ANC → ORD | Jul 7, 04:30 UTC | Jul 7, 10:05 UTC | 5h 35m |
| 2026-07-06 | CSG2501 | - | Jul 6, 19:35 UTC | Jul 7, 03:15 UTC | 7h 40m |
| 2026-07-06 | CSG2512 | - | Jul 6, 01:15 UTC | Jul 6, 13:05 UTC | 11h 50m |
| 2026-07-05 | CSG2539 | - | Jul 5, 17:40 UTC | Jul 5, 22:35 UTC | 4h 55m |
| 2026-07-05 | CSG2539 | - | Jul 5, 09:00 UTC | Jul 5, 16:30 UTC | 7h 30m |
| 2026-07-04 | CSG2539 | - | Jul 4, 13:20 UTC | Jul 5, 10:30 UTC | 21h 10m |
| 2026-07-04 | CSG2684 | - | Jul 4, 00:50 UTC | Jul 4, 13:35 UTC | 12h 45m |
| 2026-07-03 | CSG2505 | - | Jul 3, 21:10 UTC | Jul 3, 22:25 UTC | 1h 15m |
| 2026-07-03 | CSG2505 | ANC → DTW | Jul 3, 13:05 UTC | Jul 3, 19:10 UTC | 6h 5m |
| 2026-07-03 | CSG2505 | - | Jul 3, 04:50 UTC | Jul 3, 11:55 UTC | 7h 5m |
| 2026-07-02 | CSG2664 | - | Jul 2, 10:35 UTC | Jul 3, 10:30 UTC | 23h 55m |
| 2026-07-01 | CSG2664 | - | Jul 1, 23:55 UTC | Jul 2, 12:25 UTC | 12h 30m |
| 2026-07-01 | CSG2539 | - | Jul 1, 15:55 UTC | Jul 1, 20:35 UTC | 4h 40m |
| 2026-07-01 | CSG2539 | - | Jul 1, 07:35 UTC | Jul 1, 14:45 UTC | 7h 10m |
| 2026-06-30 | CSG2536 | - | Jun 30, 10:35 UTC | Jul 1, 09:00 UTC | 22h 25m |
| 2026-06-30 | CSG2536 | - | Jun 30, 00:25 UTC | Jun 30, 12:20 UTC | 11h 56m |
| 2026-06-29 | CSG2535 | - | Jun 29, 17:05 UTC | Jun 29, 21:30 UTC | 4h 25m |
| 2026-06-29 | CSG2535 | - | Jun 29, 08:29 UTC | Jun 29, 15:45 UTC | 7h 15m |
| 2026-06-28 | CSG2558 | - | Jun 28, 16:49 UTC | Jun 28, 19:49 UTC | 3h 0m |
| 2026-06-28 | CSG2557 | - | Jun 28, 07:44 UTC | Jun 28, 13:45 UTC | 6h 0m |
| 2026-06-26 | CSG2516 | - | Jun 26, 21:20 UTC | Jun 27, 03:25 UTC | 6h 5m |
| 2026-06-26 | CSG2515 | - | Jun 26, 12:05 UTC | Jun 26, 19:09 UTC | 7h 5m |
| 2026-06-25 | CSG2515 | - | Jun 25, 20:49 UTC | Jun 26, 19:09 UTC | 22h 20m |
| 2026-06-25 | CSG2515 | - | Jun 25, 16:35 UTC | Jun 26, 15:39 UTC | 23h 5m |
| 2026-06-25 | CSG2698 | - | Jun 25, 15:20 UTC | Jun 26, 12:55 UTC | 21h 35m |
| 2026-06-25 | CSG2697 | - | Jun 25, 06:00 UTC | Jun 25, 12:25 UTC | 6h 25m |
| 2026-06-24 | CSG2697 | - | Jun 24, 12:34 UTC | Jun 25, 12:25 UTC | 23h 50m |
| 2026-06-24 | CSG2518 | - | Jun 24, 12:09 UTC | Jun 25, 06:30 UTC | 18h 20m |
| 2026-06-24 | CSG2518 | - | Jun 24, 08:35 UTC | Jun 25, 06:30 UTC | 21h 55m |
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-2075 page for operator, model, and routing details .