sensors Mode-S transponder
781EDA
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32DA · AIRBUS A-320neo
- Hex
- 781EDA
- Octal
- 36017332
- Decimal
- 7,872,218
- Country
- CN
- Tail
- B-32DA
- Type
- A20N
- Flights observed
- 58
- Distinct callsigns
- 11
- Country
- CN
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 781EDA 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| GCR7829 | - | 13 | 2026-07-15 |
| GCR7910 | - | 11 | 2026-07-14 |
| GCR7830 | - | 11 | 2026-07-13 |
| GCR7909 | - | 7 | 2026-07-14 |
| GCR7560 | Tianjin Airlines | 6 | 2026-04-21 |
| GCR7559 | Tianjin Airlines | 4 | 2026-04-21 |
| GCR7920 | - | 1 | 2026-07-14 |
| GCR7919 | - | 1 | 2026-07-11 |
| GCR7896 | Tianjin Airlines | 1 | 2026-06-03 |
| GCR7870 | - | 1 | 2026-07-08 |
| GCR7869 | Tianjin Airlines | 1 | 2026-06-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-15 | GCR7829 | - | Jul 15, 02:30 UTC | Jul 15, 05:40 UTC | 3h 10m |
| 2026-07-14 | GCR7920 | - | Jul 14, 15:20 UTC | Jul 14, 15:30 UTC | 10m |
| 2026-07-14 | GCR7910 | - | Jul 14, 05:30 UTC | Jul 14, 05:45 UTC | 15m |
| 2026-07-14 | GCR7909 | - | Jul 14, 03:40 UTC | Jul 14, 03:55 UTC | 15m |
| 2026-07-13 | GCR7830 | - | Jul 13, 05:15 UTC | Jul 13, 05:31 UTC | 15m |
| 2026-07-13 | GCR7829 | - | Jul 13, 02:35 UTC | Jul 13, 03:01 UTC | 25m |
| 2026-07-11 | GCR7919 | - | Jul 11, 11:00 UTC | Jul 11, 11:10 UTC | 10m |
| 2026-07-11 | GCR7910 | - | Jul 11, 05:25 UTC | Jul 11, 05:35 UTC | 10m |
| 2026-07-08 | GCR7870 | - | Jul 8, 12:20 UTC | Jul 8, 12:45 UTC | 25m |
| 2026-07-06 | GCR7829 | - | Jul 6, 04:05 UTC | Jul 6, 07:05 UTC | 3h 0m |
| 2026-07-03 | GCR7830 | - | Jul 3, 06:45 UTC | Jul 3, 07:05 UTC | 20m |
| 2026-07-03 | GCR7829 | - | Jul 3, 03:00 UTC | Jul 3, 03:20 UTC | 20m |
| 2026-07-02 | GCR7910 | - | Jul 2, 06:35 UTC | Jul 2, 06:51 UTC | 16m |
| 2026-07-02 | GCR7909 | - | Jul 2, 05:00 UTC | Jul 2, 05:15 UTC | 15m |
| 2026-07-01 | GCR7830 | - | Jul 1, 05:30 UTC | Jul 1, 05:50 UTC | 20m |
| 2026-07-01 | GCR7829 | - | Jul 1, 02:45 UTC | Jul 1, 03:00 UTC | 15m |
| 2026-06-30 | GCR7910 | - | Jun 30, 06:55 UTC | Jun 30, 07:10 UTC | 15m |
| 2026-06-30 | GCR7909 | - | Jun 30, 05:20 UTC | Jun 30, 05:30 UTC | 10m |
| 2026-06-28 | GCR7830 | - | Jun 28, 06:34 UTC | Jun 29, 01:39 UTC | 19h 5m |
| 2026-06-28 | GCR7830 | - | Jun 28, 06:24 UTC | Jun 29, 01:39 UTC | 19h 15m |
| 2026-06-28 | GCR7829 | - | Jun 28, 02:44 UTC | Jun 29, 01:39 UTC | 22h 55m |
| 2026-06-24 | GCR7829 | - | Jun 24, 02:34 UTC | Jun 24, 05:44 UTC | 3h 10m |
| 2026-06-21 | GCR7829 | - | Jun 21, 03:00 UTC | Jun 21, 05:59 UTC | 3h 0m |
| 2026-06-20 | GCR7910 | - | Jun 20, 06:05 UTC | Jun 20, 06:14 UTC | 10m |
| 2026-06-20 | GCR7909 | - | Jun 20, 03:29 UTC | Jun 20, 03:49 UTC | 20m |
| 2026-06-15 | GCR7829 | - | Jun 15, 03:50 UTC | Jun 15, 06:45 UTC | 2h 55m |
| 2026-06-14 | GCR7830 | - | Jun 14, 06:40 UTC | Jun 14, 06:50 UTC | 10m |
| 2026-06-14 | GCR7829 | - | Jun 14, 03:10 UTC | Jun 14, 03:25 UTC | 15m |
| 2026-06-12 | GCR7830 | - | Jun 12, 02:50 UTC | Jun 12, 05:55 UTC | 3h 5m |
| 2026-06-04 | - | - | Jun 4, 13:10 UTC | Jun 4, 13:20 UTC | 10m |
| 2026-06-03 | GCR7896 | CAN → TSN | Jun 3, 10:20 UTC | Jun 3, 10:30 UTC | 10m |
| 2026-06-01 | GCR7869 | TSN → SYX | Jun 1, 09:45 UTC | Jun 1, 10:20 UTC | 35m |
| 2026-05-28 | GCR7910 | JHG → TSN | May 28, 06:45 UTC | May 28, 06:55 UTC | 10m |
| 2026-05-21 | GCR7910 | JHG → TSN | May 21, 12:40 UTC | May 21, 12:55 UTC | 15m |
| 2026-05-17 | GCR7830 | - | May 17, 07:00 UTC | May 17, 07:20 UTC | 20m |
| 2026-05-17 | GCR7829 | - | May 17, 03:30 UTC | May 17, 03:50 UTC | 20m |
| 2026-05-15 | GCR7830 | - | May 15, 03:20 UTC | May 15, 07:25 UTC | 4h 5m |
| 2026-05-14 | GCR7910 | JHG → TSN | May 14, 07:50 UTC | May 14, 08:00 UTC | 10m |
| 2026-05-14 | GCR7909 | TSN → JHG | May 14, 06:00 UTC | May 14, 06:20 UTC | 20m |
| 2026-05-12 | GCR7910 | JHG → TSN | May 12, 07:05 UTC | May 12, 07:15 UTC | 10m |
| 2026-05-12 | GCR7909 | TSN → JHG | May 12, 05:30 UTC | May 12, 05:40 UTC | 10m |
| 2026-05-10 | GCR7830 | - | May 10, 06:25 UTC | May 10, 06:45 UTC | 20m |
| 2026-05-10 | GCR7829 | - | May 10, 03:10 UTC | May 10, 03:35 UTC | 25m |
| 2026-05-07 | GCR7910 | JHG → TSN | May 7, 06:00 UTC | May 7, 06:10 UTC | 10m |
| 2026-05-07 | GCR7909 | TSN → JHG | May 7, 03:40 UTC | May 7, 03:50 UTC | 10m |
| 2026-05-05 | GCR7910 | JHG → TSN | May 5, 05:35 UTC | May 5, 05:50 UTC | 15m |
| 2026-05-03 | GCR7830 | - | May 3, 05:35 UTC | May 3, 05:50 UTC | 15m |
| 2026-05-03 | GCR7829 | - | May 3, 02:40 UTC | May 3, 03:05 UTC | 25m |
| 2026-04-21 | GCR7560 | SZX → URC | Apr 21, 11:30 UTC | Apr 21, 11:40 UTC | 10m |
| 2026-04-21 | GCR7559 | URC → SZX | Apr 21, 09:40 UTC | Apr 21, 09:50 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-32DA page for operator, model, and routing details .