sensors Mode-S transponder
7821E2
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32KH · AIRBUS A-320neo
- Hex
- 7821E2
- Octal
- 36020742
- Decimal
- 7,872,994
- Country
- CN
- Tail
- B-32KH
- Type
- A20N
- Flights observed
- 71
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address 7821E2 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 |
|---|---|---|---|
| CES891 | - | 8 | 2026-07-13 |
| CES892 | - | 7 | 2026-07-13 |
| CES6263 | - | 5 | 2026-06-25 |
| CES726 | - | 3 | 2026-07-09 |
| CES725 | - | 3 | 2026-07-09 |
| CES509 | China Eastern Airlines | 3 | 2026-06-06 |
| CES6551 | China Eastern Airlines | 2 | 2026-05-21 |
| CES6350 | China Eastern Airlines | 2 | 2026-06-09 |
| CES6346 | - | 2 | 2026-07-12 |
| CES6311 | China Eastern Airlines | 2 | 2026-05-04 |
| CES5644 | - | 2 | 2026-07-07 |
| CES5068 | - | 2 | 2026-07-02 |
| CES5067 | - | 2 | 2026-07-02 |
| CES5056 | - | 2 | 2026-06-15 |
| CES2040 | China Eastern Airlines | 2 | 2026-04-21 |
| CES204 | China Eastern Airlines | 2 | 2026-06-08 |
| CES203 | China Eastern Airlines | 2 | 2026-06-08 |
| CES6545 | China Eastern Airlines | 1 | 2026-04-17 |
| CES6355 | China Eastern Airlines | 1 | 2026-04-22 |
| CES6345 | - | 1 | 2026-07-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CES892 | - | Jul 13, 06:55 UTC | Jul 13, 11:45 UTC | 4h 50m |
| 2026-07-13 | CES891 | - | Jul 13, 05:01 UTC | Jul 13, 05:20 UTC | 20m |
| 2026-07-12 | CES6346 | - | Jul 12, 13:45 UTC | Jul 12, 14:01 UTC | 15m |
| 2026-07-12 | CES6345 | - | Jul 12, 11:25 UTC | Jul 12, 11:50 UTC | 25m |
| 2026-07-09 | CES726 | - | Jul 9, 23:35 UTC | Jul 10, 13:55 UTC | 14h 20m |
| 2026-07-09 | CES725 | - | Jul 9, 14:15 UTC | Jul 9, 15:40 UTC | 1h 25m |
| 2026-07-07 | CES5644 | - | Jul 7, 23:15 UTC | Jul 8, 07:40 UTC | 8h 25m |
| 2026-07-02 | CES5068 | - | Jul 2, 08:15 UTC | Jul 2, 08:30 UTC | 15m |
| 2026-07-02 | CES5067 | - | Jul 2, 06:15 UTC | Jul 2, 06:41 UTC | 26m |
| 2026-07-01 | CES5068 | - | Jul 1, 08:25 UTC | Jul 1, 08:45 UTC | 20m |
| 2026-07-01 | CES5067 | - | Jul 1, 06:45 UTC | Jul 1, 07:25 UTC | 40m |
| 2026-06-28 | CES726 | HKG → PVG | Jun 28, 23:44 UTC | Jun 29, 01:00 UTC | 1h 15m |
| 2026-06-28 | CES725 | - | Jun 28, 07:25 UTC | Jun 28, 15:29 UTC | 8h 5m |
| 2026-06-25 | CES6263 | - | Jun 25, 13:40 UTC | Jun 25, 13:59 UTC | 20m |
| 2026-06-24 | CES6263 | - | Jun 24, 13:24 UTC | Jun 24, 13:50 UTC | 25m |
| 2026-06-22 | CES6263 | - | Jun 22, 14:05 UTC | Jun 22, 14:29 UTC | 25m |
| 2026-06-21 | CES6263 | - | Jun 21, 13:29 UTC | Jun 21, 13:50 UTC | 20m |
| 2026-06-20 | CES6263 | - | Jun 20, 13:39 UTC | Jun 20, 13:59 UTC | 20m |
| 2026-06-15 | CES5056 | - | Jun 15, 07:50 UTC | Jun 15, 08:29 UTC | 40m |
| 2026-06-14 | CES892 | - | Jun 14, 06:55 UTC | Jun 14, 07:20 UTC | 25m |
| 2026-06-14 | CES891 | - | Jun 14, 04:40 UTC | Jun 14, 05:35 UTC | 55m |
| 2026-06-12 | CES5398 | SYX → PVG | Jun 12, 15:55 UTC | Jun 13, 01:25 UTC | 9h 30m |
| 2026-06-11 | CES5054 | TAE → PVG | Jun 11, 03:10 UTC | Jun 11, 03:20 UTC | 10m |
| 2026-06-10 | CES892 | ICN → YNJ | Jun 10, 06:55 UTC | Jun 10, 11:35 UTC | 4h 40m |
| 2026-06-10 | CES891 | YNJ → ICN | Jun 10, 04:50 UTC | Jun 10, 05:45 UTC | 55m |
| 2026-06-09 | CES891 | YNJ → ICN | Jun 9, 08:45 UTC | Jun 10, 05:45 UTC | 21h 0m |
| 2026-06-09 | CES6350 | DSN → PVG | Jun 9, 00:45 UTC | Jun 9, 09:55 UTC | 9h 10m |
| 2026-06-08 | CES6350 | DSN → PVG | Jun 8, 08:35 UTC | Jun 9, 06:00 UTC | 21h 25m |
| 2026-06-08 | CES204 | HKG → XIY | Jun 8, 08:20 UTC | Jun 9, 06:00 UTC | 21h 40m |
| 2026-06-08 | CES203 | XIY → HKG | Jun 8, 04:45 UTC | Jun 8, 05:25 UTC | 40m |
| 2026-06-06 | CES510 | HKG → PVG | Jun 6, 15:15 UTC | Jun 6, 16:39 UTC | 1h 25m |
| 2026-06-06 | CES509 | PVG → HKG | Jun 6, 13:09 UTC | Jun 6, 13:25 UTC | 15m |
| 2026-06-05 | CES509 | PVG → HKG | Jun 5, 11:25 UTC | Jun 6, 06:25 UTC | 19h 0m |
| 2026-06-05 | CES509 | PVG → HKG | Jun 5, 06:40 UTC | Jun 6, 06:25 UTC | 23h 45m |
| 2026-06-05 | CES891 | YNJ → ICN | Jun 5, 05:00 UTC | Jun 5, 05:25 UTC | 25m |
| 2026-05-29 | CES6278 | DSN → PVG | May 29, 07:15 UTC | May 29, 15:05 UTC | 7h 50m |
| 2026-05-28 | CES2130 | LHW → PKX | May 28, 04:05 UTC | May 28, 04:15 UTC | 10m |
| 2026-05-27 | CES5016 | HKG → PKX | May 27, 05:55 UTC | May 27, 06:09 UTC | 15m |
| 2026-05-27 | CES5015 | PKX → HKG | May 27, 03:14 UTC | May 27, 03:59 UTC | 45m |
| 2026-05-24 | CES892 | ICN → YNJ | May 24, 06:50 UTC | May 24, 12:50 UTC | 6h 0m |
| 2026-05-24 | CES891 | YNJ → ICN | May 24, 05:00 UTC | May 24, 05:25 UTC | 25m |
| 2026-05-21 | CES6551 | HFE → HRB | May 21, 11:05 UTC | May 21, 15:30 UTC | 4h 25m |
| 2026-05-20 | CES2068 | HKG → HFE | May 20, 10:20 UTC | May 20, 10:35 UTC | 15m |
| 2026-05-20 | CES2067 | HFE → HKG | May 20, 08:10 UTC | May 20, 08:50 UTC | 40m |
| 2026-05-19 | CES6551 | HFE → HRB | May 19, 11:20 UTC | May 19, 15:45 UTC | 4h 25m |
| 2026-05-19 | CES5056 | MFM → HFE | May 19, 06:40 UTC | May 19, 06:55 UTC | 15m |
| 2026-05-17 | CES726 | HKG → PVG | May 17, 23:55 UTC | May 18, 01:10 UTC | 1h 15m |
| 2026-05-17 | CES725 | PVG → HKG | May 17, 08:15 UTC | May 17, 15:20 UTC | 7h 5m |
| 2026-05-16 | CES5644 | TSN → SHA | May 16, 06:50 UTC | May 16, 07:25 UTC | 35m |
| 2026-05-15 | CES5392 | SZX → PKX | May 15, 08:10 UTC | May 15, 08:25 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-32KH page for operator, model, and routing details .