sensors Mode-S transponder
780B5F
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5853 · BOEING 737-800
- Hex
- 780B5F
- Octal
- 36005537
- Decimal
- 7,867,231
- Country
- CN
- Tail
- B-5853
- Type
- B738
- Flights observed
- 52
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 17d ago
Last known position
Country allocation
The ICAO 24-bit address 780B5F 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 |
|---|---|---|---|
| CHH7320 | Hainan Airlines | 4 | 2026-05-24 |
| CHH7209 | - | 4 | 2026-07-09 |
| CHH7016 | - | 3 | 2026-06-23 |
| CHH7468 | Hainan Airlines | 2 | 2026-07-25 |
| CHH7322 | - | 2 | 2026-07-18 |
| CHH7312 | - | 2 | 2026-07-07 |
| CHH6369 | Hainan Airlines | 2 | 2026-07-24 |
| CHH6354 | - | 2 | 2026-07-16 |
| CHH6353 | - | 2 | 2026-07-16 |
| CHH7889 | - | 1 | 2026-07-16 |
| CHH7877 | Hainan Airlines | 1 | 2026-06-14 |
| CHH7851 | Hainan Airlines | 1 | 2026-05-03 |
| CHH7834 | Hainan Airlines | 1 | 2026-05-29 |
| CHH7833 | Hainan Airlines | 1 | 2026-05-29 |
| CHH783 | - | 1 | 2026-07-23 |
| CHH7698 | - | 1 | 2026-06-27 |
| CHH7654 | - | 1 | 2026-06-24 |
| CHH7653 | - | 1 | 2026-06-24 |
| CHH7613 | Hainan Airlines | 1 | 2026-07-16 |
| CHH7522 | Hainan Airlines | 1 | 2026-06-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CHH7488 | CGQ → HGH | Jul 26, 12:35 UTC | Jul 26, 13:15 UTC | 40m |
| 2026-07-25 | CHH7468 | ZUH → HGH | Jul 25, 11:35 UTC | Jul 25, 11:45 UTC | 10m |
| 2026-07-24 | CHH6369 | HAK → PEK | Jul 24, 11:35 UTC | Jul 24, 12:10 UTC | 35m |
| 2026-07-23 | CHH6369 | HAK → PEK | Jul 23, 14:40 UTC | Jul 24, 12:10 UTC | 21h 30m |
| 2026-07-23 | CHH783 | - | Jul 23, 12:25 UTC | Jul 23, 12:35 UTC | 10m |
| 2026-07-21 | CHH7120 | PVG → HAK | Jul 21, 11:00 UTC | Jul 22, 01:45 UTC | 14h 45m |
| 2026-07-18 | CHH7322 | - | Jul 18, 23:55 UTC | Jul 19, 04:50 UTC | 4h 55m |
| 2026-07-17 | CHH7337 | - | Jul 17, 14:20 UTC | Jul 17, 14:35 UTC | 15m |
| 2026-07-16 | CHH7613 | PEK → PVG | Jul 16, 23:49 UTC | Jul 16, 23:59 UTC | 10m |
| 2026-07-16 | CHH6354 | - | Jul 16, 17:25 UTC | Jul 16, 17:45 UTC | 20m |
| 2026-07-16 | CHH6353 | - | Jul 16, 09:10 UTC | Jul 16, 09:25 UTC | 15m |
| 2026-07-16 | CHH7889 | - | Jul 16, 00:15 UTC | Jul 16, 00:30 UTC | 15m |
| 2026-07-15 | CHH6354 | - | Jul 15, 17:20 UTC | Jul 15, 17:40 UTC | 20m |
| 2026-07-15 | CHH6353 | - | Jul 15, 09:30 UTC | Jul 15, 09:55 UTC | 25m |
| 2026-07-15 | CHH7481 | - | Jul 15, 06:55 UTC | Jul 15, 07:05 UTC | 10m |
| 2026-07-14 | CHH7008 | - | Jul 14, 05:45 UTC | Jul 14, 05:55 UTC | 10m |
| 2026-07-11 | CHH7004 | - | Jul 11, 00:30 UTC | Jul 11, 00:40 UTC | 10m |
| 2026-07-09 | CHH7209 | - | Jul 9, 04:10 UTC | Jul 9, 09:55 UTC | 5h 45m |
| 2026-07-08 | CHH7209 | - | Jul 8, 15:15 UTC | Jul 9, 09:45 UTC | 18h 30m |
| 2026-07-08 | CHH7209 | - | Jul 8, 09:00 UTC | Jul 9, 04:30 UTC | 19h 30m |
| 2026-07-08 | CHH7209 | - | Jul 8, 06:35 UTC | Jul 9, 04:30 UTC | 21h 55m |
| 2026-07-07 | CHH7312 | - | Jul 7, 12:20 UTC | Jul 8, 09:05 UTC | 20h 45m |
| 2026-07-04 | CHH7322 | - | Jul 4, 23:55 UTC | Jul 5, 01:05 UTC | 1h 10m |
| 2026-06-28 | CHH7312 | - | Jun 28, 14:25 UTC | Jun 28, 14:39 UTC | 15m |
| 2026-06-27 | CHH7698 | - | Jun 27, 05:10 UTC | Jun 27, 09:15 UTC | 4h 5m |
| 2026-06-24 | CHH7654 | - | Jun 24, 15:00 UTC | Jun 25, 00:24 UTC | 9h 25m |
| 2026-06-24 | CHH7653 | - | Jun 24, 08:35 UTC | Jun 24, 13:05 UTC | 4h 30m |
| 2026-06-23 | CHH7015 | - | Jun 23, 11:40 UTC | Jun 23, 11:54 UTC | 15m |
| 2026-06-23 | CHH7016 | - | Jun 23, 08:30 UTC | Jun 23, 08:54 UTC | 25m |
| 2026-06-22 | CHH7016 | - | Jun 22, 11:35 UTC | Jun 23, 08:54 UTC | 21h 20m |
| 2026-06-22 | CHH7016 | - | Jun 22, 08:40 UTC | Jun 22, 11:44 UTC | 3h 5m |
| 2026-06-21 | CHH7468 | - | Jun 21, 07:55 UTC | Jun 21, 08:04 UTC | 10m |
| 2026-06-20 | CHH7177 | PEK → HGH | Jun 20, 13:14 UTC | Jun 20, 13:24 UTC | 10m |
| 2026-06-20 | CHH7335 | - | Jun 20, 04:14 UTC | Jun 20, 04:34 UTC | 20m |
| 2026-06-20 | CHH6223 | URC → PEK | Jun 20, 02:00 UTC | Jun 20, 02:19 UTC | 20m |
| 2026-06-14 | CHH7877 | XIY → SYX | Jun 14, 08:45 UTC | Jun 14, 12:45 UTC | 4h 0m |
| 2026-06-13 | CHH7522 | ZUH → XIY | Jun 13, 12:25 UTC | Jun 13, 12:40 UTC | 15m |
| 2026-06-12 | CHH7512 | ZUH → XIY | Jun 12, 03:50 UTC | Jun 12, 04:00 UTC | 10m |
| 2026-06-11 | CHH6217 | PEK → XIY | Jun 11, 07:40 UTC | Jun 11, 08:00 UTC | 20m |
| 2026-05-29 | CHH7834 | TSN → URC | May 29, 11:15 UTC | May 29, 11:30 UTC | 15m |
| 2026-05-29 | CHH7833 | URC → TSN | May 29, 09:00 UTC | May 29, 09:20 UTC | 20m |
| 2026-05-24 | CHH7320 | PVG → HAK | May 24, 02:30 UTC | May 24, 15:35 UTC | 13h 5m |
| 2026-05-23 | CHH7320 | PVG → HAK | May 23, 12:45 UTC | May 24, 02:50 UTC | 14h 6m |
| 2026-05-23 | CHH7320 | PVG → HAK | May 23, 02:30 UTC | May 23, 12:55 UTC | 10h 25m |
| 2026-05-22 | CHH7320 | PVG → HAK | May 22, 13:30 UTC | May 23, 02:45 UTC | 13h 15m |
| 2026-05-22 | CHH7073 | HAK → HRB | May 22, 02:35 UTC | May 22, 13:30 UTC | 10h 55m |
| 2026-05-16 | CHH7041 | HAK → HGH | May 16, 07:31 UTC | May 16, 13:25 UTC | 5h 55m |
| 2026-05-15 | CHH7075 | HAK → KHN | May 15, 00:35 UTC | May 15, 04:00 UTC | 3h 25m |
| 2026-05-12 | CHH7026 | SZX → HAK | May 12, 13:05 UTC | May 12, 13:20 UTC | 15m |
| 2026-05-12 | CHH7375 | SZX → TFU | May 12, 06:10 UTC | May 12, 06:20 UTC | 10m |
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-5853 page for operator, model, and routing details .