sensors Mode-S transponder
781678
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5732 · BOEING 737-800
- Hex
- 781678
- Octal
- 36013170
- Decimal
- 7,870,072
- Country
- CN
- Tail
- B-5732
- Type
- B738
- Flights observed
- 55
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address 781678 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 |
|---|---|---|---|
| LKE9844 | - | 6 | 2026-06-21 |
| LKE9708 | - | 6 | 2026-07-14 |
| LKE9976 | - | 5 | 2026-06-20 |
| LKE9972 | - | 5 | 2026-06-26 |
| LKE9965 | - | 4 | 2026-06-29 |
| LKE9843 | Lucky Air | 4 | 2026-06-07 |
| LKE9980 | - | 3 | 2026-06-27 |
| LKE9890 | - | 3 | 2026-07-15 |
| LKE9879 | - | 3 | 2026-06-22 |
| LKE9707 | - | 3 | 2026-07-10 |
| LKE9971 | Lucky Air | 2 | 2026-06-06 |
| LKE9877 | - | 2 | 2026-07-05 |
| LKE9662 | - | 2 | 2026-07-17 |
| LKE9979 | - | 1 | 2026-06-28 |
| LKE9889 | - | 1 | 2026-07-15 |
| LKE9884 | - | 1 | 2026-06-18 |
| LKE9695 | Lucky Air | 1 | 2026-06-14 |
| LKE9597 | Lucky Air | 1 | 2026-05-19 |
| LKE9561 | Lucky Air | 1 | 2026-04-24 |
| LKE9556 | Lucky Air | 1 | 2026-05-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | LKE9662 | - | Jul 17, 02:45 UTC | Jul 17, 06:45 UTC | 4h 0m |
| 2026-07-15 | LKE9890 | - | Jul 15, 21:10 UTC | Jul 15, 21:20 UTC | 10m |
| 2026-07-15 | LKE9889 | - | Jul 15, 19:00 UTC | Jul 15, 19:20 UTC | 20m |
| 2026-07-14 | LKE9708 | - | Jul 14, 02:15 UTC | Jul 14, 02:35 UTC | 20m |
| 2026-07-10 | LKE9708 | - | Jul 10, 02:40 UTC | Jul 10, 03:00 UTC | 20m |
| 2026-07-10 | LKE9707 | - | Jul 10, 00:35 UTC | Jul 10, 00:45 UTC | 10m |
| 2026-07-06 | LKE9890 | - | Jul 6, 20:25 UTC | Jul 6, 20:40 UTC | 15m |
| 2026-07-05 | LKE9877 | - | Jul 5, 13:20 UTC | Jul 6, 00:45 UTC | 11h 25m |
| 2026-06-30 | LKE9708 | - | Jun 30, 02:30 UTC | Jun 30, 03:35 UTC | 1h 5m |
| 2026-06-29 | LKE9707 | - | Jun 29, 23:39 UTC | Jun 30, 00:45 UTC | 1h 5m |
| 2026-06-29 | LKE9707 | - | Jun 29, 03:39 UTC | Jun 30, 00:45 UTC | 21h 5m |
| 2026-06-29 | LKE9965 | - | Jun 29, 00:10 UTC | Jun 29, 23:44 UTC | 23h 35m |
| 2026-06-28 | LKE9965 | - | Jun 28, 16:25 UTC | Jun 29, 03:39 UTC | 11h 15m |
| 2026-06-28 | LKE9979 | - | Jun 28, 13:59 UTC | Jun 28, 14:09 UTC | 10m |
| 2026-06-27 | LKE9980 | - | Jun 27, 14:00 UTC | Jun 27, 14:54 UTC | 55m |
| 2026-06-26 | LKE9972 | - | Jun 26, 03:15 UTC | Jun 26, 14:50 UTC | 11h 35m |
| 2026-06-23 | LKE9965 | KMG → SYX | Jun 23, 15:09 UTC | Jun 24, 03:50 UTC | 12h 40m |
| 2026-06-22 | LKE9879 | - | Jun 22, 04:59 UTC | Jun 23, 03:54 UTC | 22h 55m |
| 2026-06-21 | LKE9879 | - | Jun 21, 12:49 UTC | Jun 22, 02:00 UTC | 13h 10m |
| 2026-06-21 | LKE9844 | - | Jun 21, 02:40 UTC | Jun 21, 10:25 UTC | 7h 45m |
| 2026-06-20 | LKE9976 | - | Jun 20, 14:39 UTC | Jun 21, 00:25 UTC | 9h 45m |
| 2026-06-20 | LKE9976 | - | Jun 20, 02:04 UTC | Jun 21, 00:25 UTC | 22h 20m |
| 2026-06-20 | LKE9976 | - | Jun 20, 01:50 UTC | Jun 20, 14:59 UTC | 13h 10m |
| 2026-06-19 | LKE9976 | - | Jun 19, 16:04 UTC | Jun 20, 14:59 UTC | 22h 55m |
| 2026-06-19 | LKE9890 | - | Jun 19, 15:14 UTC | Jun 20, 02:04 UTC | 10h 50m |
| 2026-06-18 | LKE9884 | - | Jun 18, 04:40 UTC | Jun 18, 05:10 UTC | 30m |
| 2026-06-14 | LKE9695 | TFU → SYX | Jun 14, 10:45 UTC | Jun 14, 14:00 UTC | 3h 15m |
| 2026-06-13 | LKE9972 | HAK → KMG | Jun 13, 12:55 UTC | Jun 14, 11:05 UTC | 22h 10m |
| 2026-06-13 | LKE9972 | HAK → KMG | Jun 13, 00:05 UTC | Jun 13, 13:15 UTC | 13h 9m |
| 2026-06-12 | LKE9972 | HAK → KMG | Jun 12, 11:05 UTC | Jun 13, 00:10 UTC | 13h 5m |
| 2026-06-12 | LKE9972 | HAK → KMG | Jun 12, 03:45 UTC | Jun 13, 00:10 UTC | 20h 25m |
| 2026-06-10 | LKE9980 | SZX → KMG | Jun 10, 12:45 UTC | Jun 10, 12:55 UTC | 10m |
| 2026-06-10 | LKE9980 | SZX → KMG | Jun 10, 12:05 UTC | Jun 10, 12:15 UTC | 10m |
| 2026-06-07 | LKE9662 | ZUH → TFU | Jun 7, 13:40 UTC | Jun 8, 06:40 UTC | 17h 0m |
| 2026-06-07 | LKE9843 | KOW → HGH | Jun 7, 03:25 UTC | Jun 7, 03:35 UTC | 10m |
| 2026-06-06 | LKE9971 | KMG → HAK | Jun 6, 17:44 UTC | Jun 7, 00:14 UTC | 6h 30m |
| 2026-06-02 | LKE9844 | KOW → HAK | Jun 2, 04:10 UTC | Jun 2, 14:20 UTC | 10h 10m |
| 2026-06-02 | LKE9971 | KMG → HAK | Jun 2, 00:05 UTC | Jun 2, 00:20 UTC | 15m |
| 2026-05-31 | LKE9965 | KMG → SYX | May 31, 00:30 UTC | May 31, 00:55 UTC | 25m |
| 2026-05-29 | LKE9843 | KOW → HGH | May 29, 00:10 UTC | May 29, 15:30 UTC | 15h 20m |
| 2026-05-27 | LKE9976 | CAN → KMG | May 27, 14:55 UTC | May 27, 15:35 UTC | 40m |
| 2026-05-26 | LKE9844 | KOW → HAK | May 26, 04:20 UTC | May 26, 12:40 UTC | 8h 20m |
| 2026-05-24 | LKE9708 | - | May 24, 00:45 UTC | May 24, 02:55 UTC | 2h 10m |
| 2026-05-19 | LKE9597 | CGO → SYX | May 19, 08:40 UTC | May 19, 08:55 UTC | 15m |
| 2026-05-13 | LKE9844 | KOW → HAK | May 13, 03:25 UTC | May 13, 11:40 UTC | 8h 15m |
| 2026-05-07 | LKE9708 | - | May 7, 02:30 UTC | May 7, 02:55 UTC | 25m |
| 2026-05-06 | LKE9844 | KOW → HAK | May 6, 10:05 UTC | May 7, 00:30 UTC | 14h 24m |
| 2026-05-03 | LKE9556 | SJW → KMG | May 3, 08:50 UTC | May 3, 09:05 UTC | 15m |
| 2026-04-28 | LKE9877 | - | Apr 28, 13:45 UTC | Apr 28, 13:55 UTC | 10m |
| 2026-04-26 | LKE9879 | KMG → FOC | Apr 26, 01:55 UTC | Apr 26, 02:10 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-5732 page for operator, model, and routing details .