sensors Mode-S transponder
780CC1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1991 · BOEING 737-800
- Hex
- 780CC1
- Octal
- 36006301
- Decimal
- 7,867,585
- Country
- CN
- Tail
- B-1991
- Type
- B738
- Flights observed
- 64
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 780CC1 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 |
|---|---|---|---|
| KNA8369 | - | 14 | 2026-07-08 |
| KNA8370 | - | 12 | 2026-07-08 |
| KNA8272 | - | 5 | 2026-07-14 |
| KNA8270 | Knight Air | 5 | 2026-05-09 |
| KNA8269 | Knight Air | 5 | 2026-05-09 |
| KNA8286 | Knight Air | 4 | 2026-06-08 |
| KNA8278 | - | 3 | 2026-07-04 |
| KNA8249 | Knight Air | 3 | 2026-06-24 |
| KNA8267 | Knight Air | 2 | 2026-07-21 |
| KNA8368 | - | 1 | 2026-04-16 |
| KNA8367 | Knight Air | 1 | 2026-04-16 |
| KNA8282 | - | 1 | 2026-07-14 |
| KNA8277 | - | 1 | 2026-07-04 |
| KNA8274 | - | 1 | 2026-07-08 |
| KNA8273 | - | 1 | 2026-07-08 |
| KNA8271 | Knight Air | 1 | 2026-05-03 |
| KNA8268 | - | 1 | 2026-07-19 |
| KNA8245 | Knight Air | 1 | 2026-04-22 |
| KNA8242 | Knight Air | 1 | 2026-05-01 |
| KNA8215 | - | 1 | 2026-07-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-21 | KNA8267 | KMG → PEK | Jul 21, 11:05 UTC | Jul 21, 11:20 UTC | 15m |
| 2026-07-19 | KNA8268 | - | Jul 19, 14:00 UTC | Jul 19, 14:20 UTC | 20m |
| 2026-07-19 | KNA8267 | - | Jul 19, 10:40 UTC | Jul 19, 11:05 UTC | 25m |
| 2026-07-14 | KNA8272 | - | Jul 14, 23:15 UTC | Jul 14, 23:30 UTC | 15m |
| 2026-07-14 | KNA8282 | - | Jul 14, 04:15 UTC | Jul 14, 04:25 UTC | 10m |
| 2026-07-12 | KNA8215 | - | Jul 12, 10:40 UTC | Jul 12, 10:55 UTC | 15m |
| 2026-07-08 | KNA8370 | - | Jul 8, 14:20 UTC | Jul 8, 15:40 UTC | 1h 20m |
| 2026-07-08 | KNA8369 | - | Jul 8, 10:55 UTC | Jul 8, 12:10 UTC | 1h 15m |
| 2026-07-08 | KNA8274 | - | Jul 8, 06:55 UTC | Jul 8, 07:10 UTC | 15m |
| 2026-07-08 | KNA8273 | - | Jul 8, 04:40 UTC | Jul 8, 04:50 UTC | 10m |
| 2026-07-04 | KNA8278 | - | Jul 4, 03:00 UTC | Jul 4, 04:00 UTC | 1h 0m |
| 2026-07-04 | KNA8277 | - | Jul 4, 01:00 UTC | Jul 4, 01:10 UTC | 10m |
| 2026-07-03 | KNA8370 | - | Jul 3, 13:25 UTC | Jul 3, 14:45 UTC | 1h 20m |
| 2026-07-03 | KNA8369 | - | Jul 3, 10:25 UTC | Jul 3, 11:50 UTC | 1h 25m |
| 2026-06-24 | KNA8249 | KHN → HRB | Jun 24, 13:05 UTC | Jun 25, 01:19 UTC | 12h 15m |
| 2026-06-24 | KNA8249 | KHN → HRB | Jun 24, 01:44 UTC | Jun 24, 13:20 UTC | 11h 35m |
| 2026-06-23 | KNA8249 | KHN → HRB | Jun 23, 13:09 UTC | Jun 24, 01:55 UTC | 12h 45m |
| 2026-06-22 | KNA8370 | - | Jun 22, 13:35 UTC | Jun 22, 13:54 UTC | 20m |
| 2026-06-22 | KNA8369 | - | Jun 22, 11:04 UTC | Jun 22, 11:35 UTC | 30m |
| 2026-06-20 | KNA8370 | - | Jun 20, 13:19 UTC | Jun 20, 13:39 UTC | 20m |
| 2026-06-20 | KNA8369 | - | Jun 20, 11:05 UTC | Jun 20, 11:40 UTC | 35m |
| 2026-06-19 | KNA8370 | - | Jun 19, 14:34 UTC | Jun 19, 14:59 UTC | 25m |
| 2026-06-19 | KNA8369 | - | Jun 19, 11:14 UTC | Jun 19, 12:29 UTC | 1h 15m |
| 2026-06-17 | KNA8370 | - | Jun 17, 13:35 UTC | Jun 17, 14:00 UTC | 25m |
| 2026-06-17 | KNA8369 | - | Jun 17, 11:00 UTC | Jun 17, 11:25 UTC | 25m |
| 2026-06-15 | KNA8370 | - | Jun 15, 13:34 UTC | Jun 15, 14:00 UTC | 25m |
| 2026-06-15 | KNA8369 | - | Jun 15, 11:05 UTC | Jun 15, 11:39 UTC | 35m |
| 2026-06-14 | KNA8369 | BKK → BKK | Jun 14, 13:30 UTC | Jun 15, 11:39 UTC | 22h 9m |
| 2026-06-14 | KNA8369 | - | Jun 14, 11:05 UTC | Jun 14, 11:30 UTC | 25m |
| 2026-06-12 | KNA8278 | WUH → KMG | Jun 12, 02:15 UTC | Jun 12, 02:25 UTC | 10m |
| 2026-06-08 | KNA8286 | HUZ → KMG | Jun 8, 14:45 UTC | Jun 8, 15:00 UTC | 15m |
| 2026-06-05 | KNA8370 | BKK → KMG | Jun 5, 13:25 UTC | Jun 5, 14:15 UTC | 50m |
| 2026-06-05 | KNA8369 | KMG → BKK | Jun 5, 10:35 UTC | Jun 5, 11:30 UTC | 55m |
| 2026-06-03 | KNA8370 | BKK → KMG | Jun 3, 13:20 UTC | Jun 3, 14:15 UTC | 55m |
| 2026-06-03 | KNA8369 | KMG → BKK | Jun 3, 10:35 UTC | Jun 3, 11:30 UTC | 55m |
| 2026-05-21 | KNA8286 | HUZ → KMG | May 21, 16:40 UTC | May 21, 17:00 UTC | 20m |
| 2026-05-17 | KNA8286 | HUZ → KMG | May 17, 15:05 UTC | May 17, 15:25 UTC | 20m |
| 2026-05-15 | KNA8370 | BKK → KMG | May 15, 13:20 UTC | May 15, 14:15 UTC | 55m |
| 2026-05-15 | KNA8369 | KMG → BKK | May 15, 10:40 UTC | May 15, 11:40 UTC | 1h 0m |
| 2026-05-15 | KNA8278 | WUH → KMG | May 15, 02:45 UTC | May 15, 02:55 UTC | 10m |
| 2026-05-14 | KNA8370 | BKK → KMG | May 14, 13:20 UTC | May 14, 14:15 UTC | 55m |
| 2026-05-14 | KNA8369 | KMG → BKK | May 14, 10:45 UTC | May 14, 11:35 UTC | 50m |
| 2026-05-11 | KNA8272 | SZX → KMG | May 11, 01:34 UTC | May 11, 01:50 UTC | 15m |
| 2026-05-09 | KNA8270 | PEK → KMG | May 9, 05:35 UTC | May 9, 06:00 UTC | 25m |
| 2026-05-09 | KNA8269 | KMG → PEK | May 9, 03:25 UTC | May 9, 03:45 UTC | 20m |
| 2026-05-06 | KNA8272 | SZX → KMG | May 6, 00:46 UTC | May 6, 00:55 UTC | 10m |
| 2026-05-05 | KNA8272 | SZX → KMG | May 5, 02:30 UTC | May 5, 02:40 UTC | 10m |
| 2026-05-04 | KNA8272 | SZX → KMG | May 4, 00:50 UTC | May 4, 01:00 UTC | 10m |
| 2026-05-03 | KNA8271 | KMG → SZX | May 3, 17:45 UTC | May 3, 18:00 UTC | 15m |
| 2026-05-03 | KNA8270 | PEK → KMG | May 3, 05:40 UTC | May 3, 05:55 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-1991 page for operator, model, and routing details .