sensors Mode-S transponder
781019
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-7600 · BOEING 737-800
- Hex
- 781019
- Octal
- 36010031
- Decimal
- 7,868,441
- Country
- CN
- Tail
- B-7600
- Type
- B738
- Flights observed
- 34
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address 781019 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES9609 | China Eastern Airlines | 14 | 2026-07-22 |
| CES5781 | - | 5 | 2026-07-19 |
| CES9610 | China Eastern Airlines | 2 | 2026-07-24 |
| CES5772 | - | 2 | 2026-06-28 |
| CES9688 | - | 1 | 2026-07-24 |
| CES5798 | - | 1 | 2026-07-02 |
| CES5797 | - | 1 | 2026-07-01 |
| CES5783 | - | 1 | 2026-06-07 |
| CES5771 | - | 1 | 2026-06-28 |
| CES5758 | China Eastern Airlines | 1 | 2026-04-26 |
| CES5757 | China Eastern Airlines | 1 | 2026-04-26 |
| CES5740 | China Eastern Airlines | 1 | 2026-06-15 |
| CES5732 | China Eastern Airlines | 1 | 2026-06-09 |
| CES5707 | China Eastern Airlines | 1 | 2026-06-12 |
| CES2263 | China Eastern Airlines | 1 | 2026-04-30 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | CES9688 | - | Jul 24, 16:15 UTC | Jul 24, 16:25 UTC | 10m |
| 2026-07-24 | CES9610 | PNH → KMG | Jul 24, 02:40 UTC | Jul 24, 07:25 UTC | 4h 45m |
| 2026-07-22 | CES9609 | KMG → PNH | Jul 22, 02:35 UTC | Jul 22, 03:10 UTC | 35m |
| 2026-07-19 | CES5781 | - | Jul 19, 10:50 UTC | Jul 19, 11:00 UTC | 10m |
| 2026-07-18 | CES9609 | - | Jul 18, 02:29 UTC | Jul 18, 07:40 UTC | 5h 11m |
| 2026-07-15 | CES9609 | - | Jul 15, 02:35 UTC | Jul 15, 07:45 UTC | 5h 10m |
| 2026-07-14 | CES9609 | - | Jul 14, 11:10 UTC | Jul 15, 07:45 UTC | 20h 34m |
| 2026-07-13 | CES9609 | - | Jul 13, 02:30 UTC | Jul 13, 07:20 UTC | 4h 50m |
| 2026-07-12 | CES9609 | - | Jul 12, 10:55 UTC | Jul 13, 07:20 UTC | 20h 25m |
| 2026-07-10 | CES9609 | - | Jul 10, 12:20 UTC | Jul 11, 07:40 UTC | 19h 20m |
| 2026-07-07 | CES9609 | - | Jul 7, 02:35 UTC | Jul 7, 07:45 UTC | 5h 10m |
| 2026-07-06 | CES9609 | - | Jul 6, 11:05 UTC | Jul 7, 07:45 UTC | 20h 40m |
| 2026-07-05 | CES9609 | - | Jul 5, 02:25 UTC | Jul 5, 07:30 UTC | 5h 5m |
| 2026-07-02 | CES5798 | - | Jul 2, 01:55 UTC | Jul 2, 02:05 UTC | 10m |
| 2026-07-01 | CES5797 | - | Jul 1, 11:10 UTC | Jul 1, 23:50 UTC | 12h 40m |
| 2026-06-28 | CES5772 | - | Jun 28, 14:34 UTC | Jun 28, 15:05 UTC | 30m |
| 2026-06-28 | CES5771 | - | Jun 28, 11:35 UTC | Jun 28, 12:19 UTC | 45m |
| 2026-06-26 | CES9609 | KMG → PNH | Jun 26, 02:50 UTC | Jun 26, 08:00 UTC | 5h 10m |
| 2026-06-24 | CES9609 | KMG → PNH | Jun 24, 02:24 UTC | Jun 24, 07:30 UTC | 5h 5m |
| 2026-06-21 | CES5772 | SYX → KMG | Jun 21, 14:44 UTC | Jun 22, 06:35 UTC | 15h 50m |
| 2026-06-21 | CES9609 | KMG → PNH | Jun 21, 02:35 UTC | Jun 21, 12:14 UTC | 9h 40m |
| 2026-06-15 | CES5740 | CAN → KMG | Jun 15, 15:59 UTC | Jun 16, 05:55 UTC | 13h 55m |
| 2026-06-15 | CES9610 | PNH → KMG | Jun 15, 07:10 UTC | Jun 16, 05:55 UTC | 22h 45m |
| 2026-06-15 | CES9609 | KMG → PNH | Jun 15, 02:30 UTC | Jun 15, 16:45 UTC | 14h 15m |
| 2026-06-12 | CES5707 | KMG → PKX | Jun 12, 10:40 UTC | Jun 12, 10:55 UTC | 15m |
| 2026-06-09 | CES5732 | CAN → KMG | Jun 9, 03:55 UTC | Jun 9, 04:10 UTC | 15m |
| 2026-06-07 | CES5783 | - | Jun 7, 03:55 UTC | Jun 7, 04:05 UTC | 10m |
| 2026-05-05 | CES5781 | - | May 5, 10:45 UTC | May 5, 10:55 UTC | 10m |
| 2026-04-30 | CES2263 | XIY → SHE | Apr 30, 06:30 UTC | Apr 30, 06:40 UTC | 10m |
| 2026-04-26 | CES5758 | SZX → KMG | Apr 26, 09:55 UTC | Apr 26, 10:10 UTC | 15m |
| 2026-04-26 | CES5757 | KMG → SZX | Apr 26, 08:15 UTC | Apr 26, 08:25 UTC | 10m |
| 2026-04-22 | CES5781 | - | Apr 22, 06:01 UTC | Apr 22, 11:25 UTC | 5h 25m |
| 2026-04-21 | CES5781 | - | Apr 21, 10:45 UTC | Apr 22, 06:01 UTC | 19h 15m |
| 2026-04-21 | CES5781 | - | Apr 21, 05:55 UTC | Apr 21, 10:55 UTC | 5h 0m |
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-7600 page for operator, model, and routing details .