sensors Mode-S transponder
780654
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-2081 · BOEING 777-200LR
- Hex
- 780654
- Octal
- 36003124
- Decimal
- 7,865,940
- Country
- CN
- Tail
- B-2081
- Type
- B77L
- Flights observed
- 123
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 780654 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 |
|---|---|---|---|
| CSG2691 | - | 11 | 2026-05-19 |
| CSG2683 | - | 7 | 2026-04-18 |
| CSG2545 | - | 7 | 2026-05-26 |
| CSG2503 | - | 7 | 2026-04-16 |
| CSG2529 | - | 6 | 2026-05-04 |
| CSG2692 | - | 5 | 2026-05-19 |
| CSG2549 | - | 5 | 2026-04-23 |
| CSG2523 | - | 5 | 2026-04-14 |
| CSG2694 | - | 4 | 2026-05-25 |
| CSG2686 | - | 4 | 2026-04-19 |
| CSG2682 | - | 4 | 2026-04-24 |
| CSG2530 | - | 4 | 2026-05-04 |
| CSG2524 | - | 4 | 2026-04-14 |
| CSG2513 | - | 4 | 2026-05-15 |
| CSG2510 | - | 4 | 2026-05-13 |
| CSG2547 | - | 3 | 2026-04-21 |
| CSG2546 | - | 3 | 2026-05-27 |
| CSG2537 | - | 3 | 2026-05-05 |
| CSG2521 | - | 3 | 2026-05-07 |
| CSG2698 | - | 2 | 2026-04-30 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | CSG2558 | - | May 28, 17:20 UTC | May 28, 20:20 UTC | 3h 0m |
| 2026-05-28 | CSG2557 | - | May 28, 07:30 UTC | May 28, 10:55 UTC | 3h 25m |
| 2026-05-27 | CSG2557 | - | May 27, 13:10 UTC | May 28, 10:55 UTC | 21h 45m |
| 2026-05-27 | CSG2546 | - | May 27, 07:00 UTC | May 27, 13:25 UTC | 6h 25m |
| 2026-05-26 | CSG2545 | ANC → JFK | May 26, 22:15 UTC | May 27, 04:19 UTC | 6h 5m |
| 2026-05-26 | CSG2545 | - | May 26, 13:15 UTC | May 26, 20:24 UTC | 7h 10m |
| 2026-05-25 | CSG2694 | - | May 25, 17:05 UTC | May 26, 13:29 UTC | 20h 24m |
| 2026-05-25 | CSG2694 | - | May 25, 16:50 UTC | May 26, 13:29 UTC | 20h 39m |
| 2026-05-25 | CSG2693 | - | May 25, 06:50 UTC | May 25, 13:20 UTC | 6h 30m |
| 2026-05-23 | CSG2546 | - | May 23, 23:20 UTC | May 24, 05:45 UTC | 6h 25m |
| 2026-05-23 | CSG2545 | ANC → JFK | May 23, 13:10 UTC | May 23, 19:45 UTC | 6h 35m |
| 2026-05-23 | CSG2545 | - | May 23, 10:40 UTC | May 23, 11:55 UTC | 1h 15m |
| 2026-05-22 | CSG2545 | - | May 22, 15:05 UTC | May 23, 11:55 UTC | 20h 49m |
| 2026-05-22 | CSG2694 | - | May 22, 13:05 UTC | May 23, 11:55 UTC | 22h 49m |
| 2026-05-22 | CSG2694 | - | May 22, 11:35 UTC | May 23, 10:55 UTC | 23h 20m |
| 2026-05-22 | CSG2693 | - | May 22, 00:50 UTC | May 22, 07:25 UTC | 6h 35m |
| 2026-05-19 | CSG2692 | - | May 19, 12:40 UTC | May 19, 18:40 UTC | 6h 0m |
| 2026-05-19 | CSG2691 | - | May 19, 02:55 UTC | May 19, 09:35 UTC | 6h 40m |
| 2026-05-18 | CSG2691 | - | May 18, 13:30 UTC | May 19, 09:35 UTC | 20h 4m |
| 2026-05-18 | CSG2691 | - | May 18, 07:05 UTC | May 19, 06:40 UTC | 23h 34m |
| 2026-05-18 | CSG2691 | - | May 18, 06:45 UTC | May 19, 03:40 UTC | 20h 54m |
| 2026-05-18 | CSG2568 | - | May 18, 00:45 UTC | May 18, 13:45 UTC | 13h 0m |
| 2026-05-17 | CSG2567 | ANC → JFK | May 17, 15:25 UTC | May 17, 21:40 UTC | 6h 15m |
| 2026-05-17 | CSG2567 | - | May 17, 06:40 UTC | May 17, 13:55 UTC | 7h 15m |
| 2026-05-16 | CSG2542 | - | May 16, 10:05 UTC | May 16, 22:10 UTC | 12h 5m |
| 2026-05-15 | CSG2513 | - | May 15, 13:30 UTC | May 16, 06:10 UTC | 16h 40m |
| 2026-05-15 | CSG2513 | - | May 15, 09:05 UTC | May 16, 06:10 UTC | 21h 5m |
| 2026-05-15 | CSG2514 | - | May 15, 07:25 UTC | May 16, 06:10 UTC | 22h 45m |
| 2026-05-15 | CSG2514 | - | May 15, 03:05 UTC | May 15, 21:30 UTC | 18h 24m |
| 2026-05-14 | CSG2513 | - | May 14, 13:50 UTC | May 15, 00:45 UTC | 10h 55m |
| 2026-05-14 | CSG2513 | - | May 14, 03:05 UTC | May 15, 00:45 UTC | 21h 40m |
| 2026-05-13 | CSG2510 | - | May 13, 21:05 UTC | May 14, 15:20 UTC | 18h 15m |
| 2026-05-13 | CSG2510 | - | May 13, 20:45 UTC | May 14, 15:20 UTC | 18h 35m |
| 2026-05-13 | CSG2510 | - | May 13, 17:05 UTC | May 14, 15:20 UTC | 22h 15m |
| 2026-05-13 | CSG2510 | - | May 13, 16:35 UTC | May 14, 15:01 UTC | 22h 25m |
| 2026-05-12 | CSG2509 | - | May 12, 20:10 UTC | May 13, 13:50 UTC | 17h 40m |
| 2026-05-12 | CSG2509 | - | May 12, 14:25 UTC | May 13, 13:00 UTC | 22h 35m |
| 2026-05-12 | CSG2502 | - | May 12, 09:05 UTC | May 13, 05:10 UTC | 20h 5m |
| 2026-05-12 | CSG2502 | - | May 12, 08:10 UTC | May 13, 05:10 UTC | 21h 0m |
| 2026-05-12 | CSG2501 | - | May 12, 02:45 UTC | May 12, 05:25 UTC | 2h 40m |
| 2026-05-11 | CSG2501 | - | May 11, 03:35 UTC | May 11, 22:35 UTC | 19h 0m |
| 2026-05-10 | CSG2528 | - | May 10, 10:40 UTC | May 10, 16:04 UTC | 5h 25m |
| 2026-05-09 | CSG2511 | - | May 9, 20:34 UTC | May 10, 06:15 UTC | 9h 40m |
| 2026-05-08 | CSG2522 | - | May 8, 06:35 UTC | May 8, 13:25 UTC | 6h 50m |
| 2026-05-07 | CSG2521 | - | May 7, 19:40 UTC | May 8, 01:35 UTC | 5h 55m |
| 2026-05-07 | CSG2521 | - | May 7, 10:25 UTC | May 7, 17:25 UTC | 7h 0m |
| 2026-05-06 | CSG2521 | - | May 6, 13:05 UTC | May 7, 11:35 UTC | 22h 30m |
| 2026-05-06 | CSG2654 | - | May 6, 11:30 UTC | May 7, 10:50 UTC | 23h 20m |
| 2026-05-06 | CSG2654 | - | May 6, 00:55 UTC | May 6, 13:15 UTC | 12h 20m |
| 2026-05-05 | CSG2537 | - | May 5, 17:10 UTC | May 5, 21:55 UTC | 4h 45m |
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-2081 page for operator, model, and routing details .