sensors Mode-S transponder
780B2D
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5840 · BOEING 737-800
- Hex
- 780B2D
- Octal
- 36005455
- Decimal
- 7,867,181
- Country
- CN
- Tail
- B-5840
- Type
- B738
- Flights observed
- 44
- Distinct callsigns
- 12
- Country
- CN
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address 780B2D 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 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES5610 | - | 13 | 2026-06-27 |
| CES6972 | - | 8 | 2026-07-13 |
| CES6562 | - | 8 | 2026-06-29 |
| CES5506 | China Eastern Airlines | 4 | 2026-04-16 |
| CES6651 | - | 2 | 2026-06-12 |
| CES6399 | China Eastern Airlines | 2 | 2026-06-05 |
| CES6652 | - | 1 | 2026-06-12 |
| CES6346 | - | 1 | 2026-06-24 |
| CES6325 | - | 1 | 2026-07-13 |
| CES5675 | China Eastern Airlines | 1 | 2026-05-19 |
| CES5392 | - | 1 | 2026-06-19 |
| CES5391 | - | 1 | 2026-06-19 |
Recent flights last 44
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CES6325 | - | Jul 13, 06:55 UTC | Jul 13, 07:05 UTC | 10m |
| 2026-07-13 | CES6972 | - | Jul 13, 02:30 UTC | Jul 13, 02:55 UTC | 25m |
| 2026-07-10 | CES6972 | - | Jul 10, 02:40 UTC | Jul 10, 02:55 UTC | 15m |
| 2026-07-09 | CES6972 | - | Jul 9, 04:55 UTC | Jul 9, 05:15 UTC | 20m |
| 2026-07-08 | CES6972 | - | Jul 8, 03:15 UTC | Jul 8, 03:40 UTC | 25m |
| 2026-07-07 | CES6972 | - | Jul 7, 04:30 UTC | Jul 7, 04:55 UTC | 25m |
| 2026-07-06 | CES6972 | - | Jul 6, 04:20 UTC | Jul 6, 04:40 UTC | 20m |
| 2026-07-05 | CES6972 | - | Jul 5, 02:40 UTC | Jul 5, 03:00 UTC | 20m |
| 2026-07-03 | CES6972 | - | Jul 3, 02:55 UTC | Jul 3, 03:20 UTC | 25m |
| 2026-06-29 | CES6562 | - | Jun 29, 08:50 UTC | Jun 29, 12:39 UTC | 3h 50m |
| 2026-06-28 | CES6562 | - | Jun 28, 12:09 UTC | Jun 29, 08:54 UTC | 20h 45m |
| 2026-06-27 | CES5610 | - | Jun 27, 06:05 UTC | Jun 27, 06:50 UTC | 45m |
| 2026-06-25 | CES6562 | - | Jun 25, 12:10 UTC | Jun 26, 05:19 UTC | 17h 10m |
| 2026-06-24 | CES6346 | - | Jun 24, 17:25 UTC | Jun 25, 12:40 UTC | 19h 15m |
| 2026-06-23 | CES6562 | - | Jun 23, 12:49 UTC | Jun 23, 13:05 UTC | 15m |
| 2026-06-22 | CES5610 | - | Jun 22, 05:10 UTC | Jun 22, 05:44 UTC | 35m |
| 2026-06-21 | CES5610 | - | Jun 21, 05:00 UTC | Jun 21, 05:10 UTC | 10m |
| 2026-06-19 | CES5392 | - | Jun 19, 07:54 UTC | Jun 19, 08:14 UTC | 20m |
| 2026-06-19 | CES5391 | - | Jun 19, 05:14 UTC | Jun 19, 06:10 UTC | 55m |
| 2026-06-18 | CES5610 | - | Jun 18, 05:35 UTC | Jun 19, 05:14 UTC | 23h 39m |
| 2026-06-17 | CES5610 | - | Jun 17, 12:30 UTC | Jun 18, 05:45 UTC | 17h 15m |
| 2026-06-17 | CES5610 | - | Jun 17, 08:45 UTC | Jun 18, 05:45 UTC | 21h 0m |
| 2026-06-16 | CES5610 | - | Jun 16, 04:50 UTC | Jun 16, 05:25 UTC | 35m |
| 2026-06-14 | CES5610 | - | Jun 14, 05:10 UTC | Jun 14, 05:45 UTC | 35m |
| 2026-06-13 | CES5610 | - | Jun 13, 05:50 UTC | Jun 14, 05:15 UTC | 23h 25m |
| 2026-06-12 | CES6652 | - | Jun 12, 04:00 UTC | Jun 12, 04:10 UTC | 10m |
| 2026-06-12 | CES6651 | - | Jun 12, 01:30 UTC | Jun 12, 01:45 UTC | 15m |
| 2026-06-05 | CES6399 | HFE → TYN | Jun 5, 04:30 UTC | Jun 5, 12:45 UTC | 8h 15m |
| 2026-06-05 | CES6651 | - | Jun 5, 01:40 UTC | Jun 5, 02:00 UTC | 20m |
| 2026-05-19 | CES5675 | KHN → HAK | May 19, 04:05 UTC | May 19, 07:20 UTC | 3h 15m |
| 2026-05-16 | - | - | May 16, 10:55 UTC | May 16, 11:11 UTC | 15m |
| 2026-05-15 | CES6562 | HRB → PVG | May 15, 12:15 UTC | May 16, 11:11 UTC | 22h 55m |
| 2026-05-14 | CES6562 | HRB → PVG | May 14, 12:00 UTC | May 14, 12:35 UTC | 35m |
| 2026-05-11 | CES6399 | HFE → TYN | May 11, 09:50 UTC | May 12, 04:15 UTC | 18h 25m |
| 2026-05-05 | CES6562 | HRB → PVG | May 5, 12:25 UTC | May 6, 06:00 UTC | 17h 35m |
| 2026-05-05 | CES6562 | HRB → PVG | May 5, 08:55 UTC | May 6, 06:00 UTC | 21h 5m |
| 2026-05-04 | CES5610 | SHA → XMN | May 4, 05:30 UTC | May 4, 06:00 UTC | 30m |
| 2026-04-29 | CES5610 | SHA → XMN | Apr 29, 13:35 UTC | Apr 30, 05:15 UTC | 15h 39m |
| 2026-04-19 | CES5610 | SHA → XMN | Apr 19, 01:55 UTC | Apr 19, 05:10 UTC | 3h 15m |
| 2026-04-17 | CES5610 | SHA → XMN | Apr 17, 05:00 UTC | Apr 17, 05:10 UTC | 10m |
| 2026-04-16 | CES5506 | FOC → PVG | Apr 16, 09:35 UTC | Apr 16, 09:45 UTC | 10m |
| 2026-04-15 | CES5506 | FOC → PVG | Apr 15, 10:40 UTC | Apr 15, 10:50 UTC | 10m |
| 2026-04-15 | CES5506 | FOC → PVG | Apr 15, 09:55 UTC | Apr 15, 10:05 UTC | 10m |
| 2026-04-14 | CES5506 | FOC → PVG | Apr 14, 09:30 UTC | Apr 14, 09:45 UTC | 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 B-5840 page for operator, model, and routing details .