sensors Mode-S transponder
780BB4
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-9983 · AIRBUS A-320
- Hex
- 780BB4
- Octal
- 36005664
- Decimal
- 7,867,316
- Country
- CN
- Tail
- B-9983
- Type
- A320
- Flights observed
- 34
- Distinct callsigns
- 14
- Country
- CN
- Last broadcast
- 26d ago
Last known position
Country allocation
The ICAO 24-bit address 780BB4 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 |
|---|---|---|---|
| GCR6528 | Tianjin Airlines | 5 | 2026-07-25 |
| GCR6527 | Tianjin Airlines | 5 | 2026-07-25 |
| GCR6450 | - | 5 | 2026-07-20 |
| GCR6602 | - | 4 | 2026-07-13 |
| GCR7964 | Tianjin Airlines | 2 | 2026-07-22 |
| GCR7751 | Tianjin Airlines | 2 | 2026-07-24 |
| GCR6554 | - | 2 | 2026-07-08 |
| GCR6553 | - | 2 | 2026-07-12 |
| GCR6449 | - | 2 | 2026-07-17 |
| GCR7963 | Tianjin Airlines | 1 | 2026-07-22 |
| GCR7752 | Tianjin Airlines | 1 | 2026-07-24 |
| GCR7578 | Tianjin Airlines | 1 | 2026-06-24 |
| GCR6601 | - | 1 | 2026-07-10 |
| GCR6586 | Tianjin Airlines | 1 | 2026-07-21 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | GCR6528 | CGQ → SJW | Jul 25, 08:20 UTC | Jul 25, 08:30 UTC | 10m |
| 2026-07-25 | GCR6527 | SJW → CGQ | Jul 25, 04:15 UTC | Jul 25, 04:50 UTC | 35m |
| 2026-07-24 | GCR6527 | SJW → CGQ | Jul 24, 23:50 UTC | Jul 25, 02:15 UTC | 2h 25m |
| 2026-07-24 | GCR7751 | TSN → XNN | Jul 24, 09:00 UTC | Jul 24, 16:00 UTC | 7h 0m |
| 2026-07-24 | GCR7752 | XNN → TSN | Jul 24, 06:45 UTC | Jul 24, 07:10 UTC | 25m |
| 2026-07-22 | GCR7964 | SIN → KWE | Jul 22, 21:05 UTC | Jul 23, 15:50 UTC | 18h 45m |
| 2026-07-22 | GCR7964 | SIN → KWE | Jul 22, 20:40 UTC | Jul 23, 15:50 UTC | 19h 10m |
| 2026-07-22 | GCR7963 | KWE → SIN | Jul 22, 16:20 UTC | Jul 22, 19:25 UTC | 3h 5m |
| 2026-07-21 | GCR6586 | TSN → CKG | Jul 21, 11:15 UTC | Jul 21, 16:30 UTC | 5h 15m |
| 2026-07-20 | GCR6450 | - | Jul 20, 14:30 UTC | Jul 20, 14:40 UTC | 10m |
| 2026-07-19 | GCR6450 | - | Jul 19, 15:05 UTC | Jul 19, 15:25 UTC | 20m |
| 2026-07-17 | GCR6450 | - | Jul 17, 15:00 UTC | Jul 17, 15:15 UTC | 15m |
| 2026-07-17 | GCR6449 | - | Jul 17, 13:40 UTC | Jul 17, 13:50 UTC | 10m |
| 2026-07-16 | GCR6450 | - | Jul 16, 15:00 UTC | Jul 16, 15:10 UTC | 10m |
| 2026-07-15 | GCR6450 | - | Jul 15, 15:10 UTC | Jul 15, 15:25 UTC | 15m |
| 2026-07-15 | GCR6449 | - | Jul 15, 13:40 UTC | Jul 15, 13:50 UTC | 10m |
| 2026-07-14 | GCR6528 | - | Jul 14, 08:20 UTC | Jul 14, 08:30 UTC | 10m |
| 2026-07-14 | GCR6527 | - | Jul 14, 03:50 UTC | Jul 14, 04:05 UTC | 15m |
| 2026-07-13 | GCR6602 | - | Jul 13, 08:10 UTC | Jul 13, 08:30 UTC | 20m |
| 2026-07-12 | GCR6553 | - | Jul 12, 14:35 UTC | Jul 13, 04:15 UTC | 13h 40m |
| 2026-07-12 | GCR6528 | - | Jul 12, 07:35 UTC | Jul 12, 07:45 UTC | 10m |
| 2026-07-11 | GCR7751 | - | Jul 11, 10:15 UTC | Jul 12, 04:10 UTC | 17h 55m |
| 2026-07-10 | GCR6602 | - | Jul 10, 08:45 UTC | Jul 10, 09:00 UTC | 15m |
| 2026-07-10 | GCR6601 | - | Jul 10, 04:35 UTC | Jul 10, 04:45 UTC | 10m |
| 2026-07-09 | GCR6528 | - | Jul 9, 08:05 UTC | Jul 9, 08:15 UTC | 10m |
| 2026-07-09 | GCR6527 | - | Jul 9, 04:15 UTC | Jul 9, 04:30 UTC | 15m |
| 2026-07-08 | GCR6554 | - | Jul 8, 16:30 UTC | Jul 8, 16:40 UTC | 10m |
| 2026-07-08 | GCR6602 | - | Jul 8, 08:15 UTC | Jul 8, 08:25 UTC | 10m |
| 2026-07-06 | GCR6553 | - | Jul 6, 14:30 UTC | Jul 7, 03:30 UTC | 13h 0m |
| 2026-07-06 | GCR6528 | - | Jul 6, 07:45 UTC | Jul 6, 08:00 UTC | 15m |
| 2026-07-06 | GCR6527 | - | Jul 6, 03:50 UTC | Jul 6, 04:05 UTC | 15m |
| 2026-07-05 | GCR6554 | - | Jul 5, 16:25 UTC | Jul 5, 16:45 UTC | 20m |
| 2026-07-05 | GCR6602 | - | Jul 5, 09:00 UTC | Jul 5, 09:10 UTC | 10m |
| 2026-06-24 | GCR7578 | TSN → URC | Jun 24, 14:00 UTC | Jun 24, 14:20 UTC | 20m |
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-9983 page for operator, model, and routing details .