sensors Mode-S transponder
781308
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1200 · BOEING 737 MAX 8
- Hex
- 781308
- Octal
- 36011410
- Decimal
- 7,869,192
- Country
- CN
- Tail
- B-1200
- Type
- B38M
- Flights observed
- 29
- Distinct callsigns
- 14
- Country
- CN
- Last broadcast
- 14h ago
Current position
Country allocation
The ICAO 24-bit address 781308 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSN6002 | - | 7 | 2026-06-28 |
| CSN6001 | - | 5 | 2026-06-19 |
| CSN6857 | - | 4 | 2026-07-02 |
| CSN6913 | - | 2 | 2026-07-13 |
| CSN6858 | - | 2 | 2026-07-02 |
| CSN8996 | China Southern Airlines | 1 | 2026-06-24 |
| CSN8924 | China Southern Airlines | 1 | 2026-05-21 |
| CSN8896 | - | 1 | 2026-07-14 |
| CSN6916 | China Southern Airlines | 1 | 2026-04-30 |
| CSN6915 | China Southern Airlines | 1 | 2026-04-30 |
| CSN6914 | - | 1 | 2026-07-06 |
| CSN6912 | China Southern Airlines | 1 | 2026-05-08 |
| CSN6911 | China Southern Airlines | 1 | 2026-05-08 |
| CSN6906 | China Southern Airlines | 1 | 2026-06-24 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CSN8896 | - | Jul 14, 00:15 UTC | Jul 14, 00:25 UTC | 10m |
| 2026-07-13 | CSN6913 | - | Jul 13, 14:30 UTC | Jul 13, 14:40 UTC | 10m |
| 2026-07-06 | CSN6914 | - | Jul 6, 00:20 UTC | Jul 6, 00:35 UTC | 15m |
| 2026-07-05 | CSN6913 | - | Jul 5, 14:40 UTC | Jul 5, 15:10 UTC | 30m |
| 2026-07-02 | CSN6858 | - | Jul 2, 07:05 UTC | Jul 2, 07:20 UTC | 15m |
| 2026-07-02 | CSN6857 | - | Jul 2, 05:25 UTC | Jul 2, 05:35 UTC | 10m |
| 2026-06-28 | CSN6002 | - | Jun 28, 12:35 UTC | Jun 28, 23:20 UTC | 10h 45m |
| 2026-06-24 | CSN6906 | PKX → URC | Jun 24, 12:54 UTC | Jun 24, 13:10 UTC | 15m |
| 2026-06-24 | CSN8996 | AAT → PKX | Jun 24, 07:24 UTC | Jun 24, 07:40 UTC | 15m |
| 2026-06-19 | CSN6002 | - | Jun 19, 22:45 UTC | Jun 19, 23:09 UTC | 25m |
| 2026-06-19 | CSN6002 | SVO → SVO | Jun 19, 19:19 UTC | Jun 19, 19:54 UTC | 35m |
| 2026-06-19 | CSN6001 | - | Jun 19, 12:29 UTC | Jun 19, 12:44 UTC | 15m |
| 2026-05-24 | CSN6002 | SVO → URC | May 24, 20:30 UTC | May 24, 23:30 UTC | 3h 0m |
| 2026-05-24 | CSN6002 | SVO → URC | May 24, 19:20 UTC | May 24, 20:00 UTC | 40m |
| 2026-05-24 | CSN6001 | URC → SVO | May 24, 12:25 UTC | May 24, 15:30 UTC | 3h 5m |
| 2026-05-21 | CSN8924 | XNN → PKX | May 21, 09:35 UTC | May 21, 09:45 UTC | 10m |
| 2026-05-14 | CSN6857 | KHG → SZX | May 14, 05:25 UTC | May 14, 05:35 UTC | 10m |
| 2026-05-08 | CSN6912 | PKX → URC | May 8, 06:30 UTC | May 8, 06:45 UTC | 15m |
| 2026-05-08 | CSN6911 | URC → PKX | May 8, 04:00 UTC | May 8, 04:14 UTC | 15m |
| 2026-05-05 | CSN6858 | SZX → KHG | May 5, 07:30 UTC | May 5, 07:40 UTC | 10m |
| 2026-05-05 | CSN6857 | KHG → SZX | May 5, 05:25 UTC | May 5, 05:35 UTC | 10m |
| 2026-05-01 | CSN6001 | URC → SVO | May 1, 12:20 UTC | May 1, 15:25 UTC | 3h 5m |
| 2026-04-30 | CSN6916 | PKX → URC | Apr 30, 09:55 UTC | Apr 30, 10:10 UTC | 15m |
| 2026-04-30 | CSN6915 | URC → TNA | Apr 30, 07:20 UTC | Apr 30, 07:35 UTC | 15m |
| 2026-04-25 | CSN6857 | KHG → SZX | Apr 25, 05:30 UTC | Apr 25, 05:40 UTC | 10m |
| 2026-04-15 | CSN6002 | SVO → URC | Apr 15, 20:30 UTC | Apr 15, 20:40 UTC | 10m |
| 2026-04-15 | CSN6001 | URC → SVO | Apr 15, 13:01 UTC | Apr 15, 13:10 UTC | 10m |
| 2026-04-15 | CSN6001 | URC → SVO | Apr 15, 12:40 UTC | Apr 15, 12:55 UTC | 15m |
| 2026-04-12 | CSN6002 | SVO → SVO | Apr 12, 19:20 UTC | Apr 12, 19:50 UTC | 30m |
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-1200 page for operator, model, and routing details .