sensors Mode-S transponder
78061B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5503 · BOEING 737-800
- Hex
- 78061B
- Octal
- 36003033
- Decimal
- 7,865,883
- Country
- CN
- Tail
- B-5503
- Type
- B738
- Flights observed
- 69
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 78061B 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| FZA6573 | - | 13 | 2026-07-06 |
| FZA6531 | - | 13 | 2026-07-13 |
| FZA6532 | - | 10 | 2026-07-13 |
| FZA6636 | - | 9 | 2026-07-16 |
| FZA6635 | - | 8 | 2026-07-16 |
| FZA6768 | - | 3 | 2026-07-15 |
| FZA6574 | Fuzhou Airlines | 3 | 2026-05-04 |
| FZA6767 | - | 2 | 2026-07-15 |
| FZA6658 | - | 2 | 2026-07-02 |
| FZA6748 | - | 1 | 2026-07-09 |
| FZA6747 | - | 1 | 2026-07-11 |
| FZA6666 | Fuzhou Airlines | 1 | 2026-04-19 |
| FZA6648 | - | 1 | 2026-06-03 |
| FZA6631 | Fuzhou Airlines | 1 | 2026-05-25 |
| FZA6597 | Fuzhou Airlines | 1 | 2026-07-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | FZA6597 | HRB → CSX | Jul 17, 02:20 UTC | Jul 17, 14:55 UTC | 12h 35m |
| 2026-07-16 | FZA6636 | - | Jul 16, 13:40 UTC | Jul 17, 02:34 UTC | 12h 55m |
| 2026-07-16 | FZA6635 | - | Jul 16, 02:35 UTC | Jul 16, 02:45 UTC | 10m |
| 2026-07-15 | FZA6768 | - | Jul 15, 14:20 UTC | Jul 15, 14:35 UTC | 15m |
| 2026-07-15 | FZA6767 | - | Jul 15, 02:25 UTC | Jul 15, 02:35 UTC | 10m |
| 2026-07-14 | FZA6636 | - | Jul 14, 13:55 UTC | Jul 14, 14:10 UTC | 15m |
| 2026-07-14 | FZA6635 | - | Jul 14, 02:30 UTC | Jul 14, 02:40 UTC | 10m |
| 2026-07-13 | FZA6532 | - | Jul 13, 09:35 UTC | Jul 13, 12:25 UTC | 2h 50m |
| 2026-07-13 | FZA6531 | - | Jul 13, 06:40 UTC | Jul 13, 07:15 UTC | 35m |
| 2026-07-11 | FZA6747 | - | Jul 11, 04:05 UTC | Jul 11, 04:20 UTC | 15m |
| 2026-07-09 | FZA6748 | - | Jul 9, 12:10 UTC | Jul 9, 12:20 UTC | 10m |
| 2026-07-06 | FZA6573 | - | Jul 6, 04:00 UTC | Jul 6, 08:00 UTC | 4h 0m |
| 2026-07-05 | FZA6532 | - | Jul 5, 10:55 UTC | Jul 5, 11:10 UTC | 15m |
| 2026-07-04 | FZA6531 | - | Jul 4, 17:10 UTC | Jul 5, 08:40 UTC | 15h 30m |
| 2026-07-04 | FZA6635 | - | Jul 4, 02:20 UTC | Jul 4, 02:30 UTC | 10m |
| 2026-07-03 | FZA6532 | - | Jul 3, 09:55 UTC | Jul 3, 10:10 UTC | 15m |
| 2026-07-02 | FZA6658 | - | Jul 2, 14:00 UTC | Jul 3, 07:25 UTC | 17h 25m |
| 2026-07-01 | FZA6658 | - | Jul 1, 15:40 UTC | Jul 2, 14:20 UTC | 22h 40m |
| 2026-07-01 | FZA6531 | - | Jul 1, 06:50 UTC | Jul 1, 15:40 UTC | 8h 50m |
| 2026-06-30 | FZA6636 | - | Jun 30, 13:50 UTC | Jul 1, 09:50 UTC | 20h 0m |
| 2026-06-30 | FZA6636 | - | Jun 30, 06:55 UTC | Jun 30, 14:10 UTC | 7h 15m |
| 2026-06-30 | FZA6635 | - | Jun 30, 02:20 UTC | Jun 30, 02:30 UTC | 10m |
| 2026-06-29 | FZA6531 | - | Jun 29, 07:40 UTC | Jun 29, 11:14 UTC | 3h 35m |
| 2026-06-28 | FZA6531 | - | Jun 28, 14:19 UTC | Jun 29, 11:14 UTC | 20h 55m |
| 2026-06-28 | FZA6768 | - | Jun 28, 09:45 UTC | Jun 29, 07:59 UTC | 22h 15m |
| 2026-06-28 | FZA6768 | - | Jun 28, 01:34 UTC | Jun 28, 14:34 UTC | 13h 0m |
| 2026-06-27 | FZA6767 | - | Jun 27, 14:25 UTC | Jun 28, 10:39 UTC | 20h 15m |
| 2026-06-15 | FZA6573 | - | Jun 15, 04:30 UTC | Jun 15, 04:40 UTC | 10m |
| 2026-06-14 | FZA6573 | - | Jun 14, 03:00 UTC | Jun 14, 04:05 UTC | 1h 5m |
| 2026-06-12 | FZA6573 | - | Jun 12, 03:40 UTC | Jun 12, 06:45 UTC | 3h 5m |
| 2026-06-03 | FZA6648 | - | Jun 3, 15:50 UTC | Jun 4, 02:55 UTC | 11h 5m |
| 2026-06-03 | FZA6532 | HAK → FOC | Jun 3, 09:45 UTC | Jun 3, 10:00 UTC | 15m |
| 2026-06-02 | FZA6531 | FOC → HAK | Jun 2, 13:20 UTC | Jun 3, 07:20 UTC | 18h 0m |
| 2026-06-02 | FZA6636 | XNT → HRB | Jun 2, 09:15 UTC | Jun 3, 07:20 UTC | 22h 5m |
| 2026-06-02 | FZA6635 | HRB → XNT | Jun 2, 07:00 UTC | Jun 2, 07:15 UTC | 15m |
| 2026-06-01 | FZA6531 | FOC → HAK | Jun 1, 06:55 UTC | Jun 1, 10:00 UTC | 3h 5m |
| 2026-05-30 | FZA6636 | XNT → HRB | May 30, 06:45 UTC | May 30, 13:40 UTC | 6h 55m |
| 2026-05-28 | FZA6636 | XNT → HRB | May 28, 13:35 UTC | May 28, 13:50 UTC | 15m |
| 2026-05-28 | FZA6635 | HRB → XNT | May 28, 02:30 UTC | May 28, 02:40 UTC | 10m |
| 2026-05-26 | FZA6636 | XNT → HRB | May 26, 13:24 UTC | May 26, 13:40 UTC | 15m |
| 2026-05-26 | FZA6635 | HRB → XNT | May 26, 02:24 UTC | May 26, 02:39 UTC | 15m |
| 2026-05-25 | FZA6631 | TAO → HRB | May 25, 12:30 UTC | May 25, 12:40 UTC | 10m |
| 2026-05-25 | FZA6532 | HAK → FOC | May 25, 09:45 UTC | May 25, 10:00 UTC | 15m |
| 2026-05-25 | FZA6531 | FOC → HAK | May 25, 06:40 UTC | May 25, 07:05 UTC | 25m |
| 2026-05-18 | FZA6573 | FOC → NNG | May 18, 03:30 UTC | May 18, 08:05 UTC | 4h 35m |
| 2026-05-17 | FZA6573 | FOC → NNG | May 17, 03:35 UTC | May 17, 04:00 UTC | 25m |
| 2026-05-15 | FZA6532 | HAK → FOC | May 15, 07:10 UTC | May 15, 10:40 UTC | 3h 30m |
| 2026-05-13 | FZA6531 | FOC → HAK | May 13, 06:50 UTC | May 13, 09:55 UTC | 3h 5m |
| 2026-05-11 | FZA6531 | FOC → HAK | May 11, 07:00 UTC | May 11, 09:55 UTC | 2h 55m |
| 2026-05-09 | FZA6636 | XNT → HRB | May 9, 13:30 UTC | May 9, 13:45 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-5503 page for operator, model, and routing details .