sensors Mode-S transponder
780F52
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8421 · AIRBUS A-320
- Hex
- 780F52
- Octal
- 36007522
- Decimal
- 7,868,242
- Country
- CN
- Tail
- B-8421
- Type
- A320
- Flights observed
- 36
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 780F52 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CHB6413 | - | 4 | 2026-06-18 |
| CHB6322 | - | 4 | 2026-07-02 |
| CHB6264 | - | 4 | 2026-06-18 |
| CHB6449 | - | 3 | 2026-06-20 |
| CHB6321 | - | 3 | 2026-07-02 |
| CHB6285 | - | 3 | 2026-06-27 |
| CHB6203 | - | 3 | 2026-07-07 |
| CHB6204 | China West Air | 2 | 2026-06-15 |
| CHB6508 | - | 1 | 2026-05-29 |
| CHB6507 | - | 1 | 2026-05-29 |
| CHB6450 | - | 1 | 2026-05-19 |
| CHB6424 | - | 1 | 2026-06-30 |
| CHB6423 | - | 1 | 2026-06-30 |
| CHB6414 | China West Air | 1 | 2026-06-18 |
| CHB6302 | - | 1 | 2026-05-29 |
| CHB6286 | - | 1 | 2026-06-25 |
| CHB6263 | - | 1 | 2026-06-18 |
| CHB6235 | - | 1 | 2026-06-16 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-07 | CHB6203 | - | Jul 7, 02:10 UTC | Jul 7, 10:00 UTC | 7h 50m |
| 2026-07-02 | CHB6322 | - | Jul 2, 17:00 UTC | Jul 2, 17:15 UTC | 15m |
| 2026-07-02 | CHB6321 | - | Jul 2, 15:20 UTC | Jul 2, 15:50 UTC | 30m |
| 2026-06-30 | CHB6424 | - | Jun 30, 11:50 UTC | Jun 30, 12:10 UTC | 20m |
| 2026-06-30 | CHB6423 | - | Jun 30, 09:45 UTC | Jun 30, 10:00 UTC | 15m |
| 2026-06-27 | CHB6285 | - | Jun 27, 00:14 UTC | Jun 27, 04:39 UTC | 4h 25m |
| 2026-06-25 | CHB6286 | - | Jun 25, 04:20 UTC | Jun 25, 04:29 UTC | 10m |
| 2026-06-24 | CHB6285 | - | Jun 24, 04:34 UTC | Jun 25, 00:19 UTC | 19h 45m |
| 2026-06-24 | CHB6285 | - | Jun 24, 00:05 UTC | Jun 24, 04:39 UTC | 4h 35m |
| 2026-06-20 | CHB6449 | - | Jun 20, 14:14 UTC | Jun 20, 16:14 UTC | 2h 0m |
| 2026-06-18 | CHB6264 | - | Jun 18, 16:05 UTC | Jun 18, 16:20 UTC | 15m |
| 2026-06-18 | CHB6414 | KWE → HFE | Jun 18, 13:55 UTC | Jun 18, 14:15 UTC | 20m |
| 2026-06-18 | CHB6413 | - | Jun 18, 02:15 UTC | Jun 18, 02:30 UTC | 15m |
| 2026-06-18 | CHB6263 | - | Jun 18, 00:25 UTC | Jun 18, 00:35 UTC | 10m |
| 2026-06-16 | CHB6235 | - | Jun 16, 01:50 UTC | Jun 16, 02:00 UTC | 10m |
| 2026-06-15 | CHB6204 | SYX → CKG | Jun 15, 09:49 UTC | Jun 15, 10:24 UTC | 35m |
| 2026-06-15 | CHB6203 | CKG → SYX | Jun 15, 02:24 UTC | Jun 15, 07:29 UTC | 5h 5m |
| 2026-06-12 | CHB6264 | ZUH → CKG | Jun 12, 15:45 UTC | Jun 12, 16:00 UTC | 15m |
| 2026-06-12 | CHB6413 | HFE → KWE | Jun 12, 02:05 UTC | Jun 12, 02:20 UTC | 15m |
| 2026-06-10 | CHB6264 | ZUH → CKG | Jun 10, 15:35 UTC | Jun 10, 15:50 UTC | 15m |
| 2026-06-10 | CHB6413 | HFE → KWE | Jun 10, 02:00 UTC | Jun 10, 02:10 UTC | 10m |
| 2026-06-09 | CHB6449 | - | Jun 9, 11:40 UTC | Jun 9, 12:00 UTC | 20m |
| 2026-06-07 | CHB6264 | ZUH → CKG | Jun 7, 18:00 UTC | Jun 7, 18:15 UTC | 15m |
| 2026-06-07 | CHB6413 | HFE → KWE | Jun 7, 01:55 UTC | Jun 7, 02:10 UTC | 15m |
| 2026-06-06 | CHB6204 | SYX → CKG | Jun 6, 09:04 UTC | Jun 6, 09:39 UTC | 35m |
| 2026-06-06 | CHB6203 | CKG → SYX | Jun 6, 06:50 UTC | Jun 6, 07:25 UTC | 35m |
| 2026-06-05 | CHB6322 | SZX → HFE | Jun 5, 16:15 UTC | Jun 5, 16:30 UTC | 15m |
| 2026-06-05 | CHB6321 | HFE → SZX | Jun 5, 14:55 UTC | Jun 5, 15:05 UTC | 10m |
| 2026-05-29 | CHB6508 | - | May 29, 13:25 UTC | May 29, 13:55 UTC | 30m |
| 2026-05-29 | CHB6507 | - | May 29, 09:15 UTC | May 29, 09:35 UTC | 20m |
| 2026-05-29 | CHB6302 | - | May 29, 02:05 UTC | May 29, 02:30 UTC | 25m |
| 2026-05-22 | CHB6322 | SZX → HFE | May 22, 17:00 UTC | May 22, 17:15 UTC | 15m |
| 2026-05-19 | CHB6450 | - | May 19, 14:40 UTC | May 19, 14:55 UTC | 15m |
| 2026-05-19 | CHB6449 | - | May 19, 12:35 UTC | May 19, 12:50 UTC | 15m |
| 2026-05-08 | CHB6322 | SZX → HFE | May 8, 15:15 UTC | May 8, 15:25 UTC | 10m |
| 2026-05-08 | CHB6321 | HFE → SZX | May 8, 13:25 UTC | May 8, 13:50 UTC | 25m |
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-8421 page for operator, model, and routing details .