sensors Mode-S transponder
7806EF
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6741 · AIRBUS A-321
- Hex
- 7806EF
- Octal
- 36003357
- Decimal
- 7,866,095
- Country
- CN
- Tail
- B-6741
- Type
- A321
- Flights observed
- 135
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address 7806EF 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 |
|---|---|---|---|
| CCA149 | - | 12 | 2026-06-29 |
| CCA727 | - | 7 | 2026-07-07 |
| CCA115 | - | 6 | 2026-06-25 |
| CCA150 | - | 5 | 2026-06-28 |
| CCA145 | - | 5 | 2026-06-29 |
| CCA740 | - | 4 | 2026-06-24 |
| CCA728 | - | 4 | 2026-07-07 |
| CCA146 | - | 4 | 2026-06-29 |
| CCA126 | Air China | 4 | 2026-05-01 |
| CCA125 | Air China | 4 | 2026-05-01 |
| CCA739 | - | 3 | 2026-06-23 |
| CCA1885 | - | 3 | 2026-06-26 |
| CCA1639 | Air China | 3 | 2026-05-03 |
| CCA1373 | - | 3 | 2026-07-03 |
| CCA134 | - | 3 | 2026-06-27 |
| CCA1286 | - | 3 | 2026-05-04 |
| CCA1285 | - | 3 | 2026-05-04 |
| CCA116 | - | 3 | 2026-06-25 |
| CCA928 | Air China | 2 | 2026-05-25 |
| CCA927 | Air China | 2 | 2026-05-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CCA136 | - | Jul 17, 06:54 UTC | Jul 17, 07:20 UTC | 25m |
| 2026-07-17 | CCA135 | - | Jul 17, 04:49 UTC | Jul 17, 05:15 UTC | 25m |
| 2026-07-16 | CCA1653 | - | Jul 16, 13:05 UTC | Jul 16, 13:15 UTC | 10m |
| 2026-07-16 | CCA1541 | - | Jul 16, 05:40 UTC | Jul 16, 05:55 UTC | 15m |
| 2026-07-15 | CCA8352 | - | Jul 15, 08:40 UTC | Jul 15, 08:55 UTC | 15m |
| 2026-07-15 | CCA8351 | - | Jul 15, 04:00 UTC | Jul 15, 04:20 UTC | 20m |
| 2026-07-13 | CCA1793 | - | Jul 13, 07:15 UTC | Jul 13, 07:55 UTC | 40m |
| 2026-07-10 | CCA1714 | - | Jul 10, 05:15 UTC | Jul 10, 05:25 UTC | 10m |
| 2026-07-09 | CCA184 | - | Jul 9, 23:35 UTC | Jul 10, 01:35 UTC | 2h 0m |
| 2026-07-09 | CCA183 | - | Jul 9, 12:00 UTC | Jul 9, 13:55 UTC | 1h 55m |
| 2026-07-09 | CCA1370 | - | Jul 9, 08:25 UTC | Jul 9, 08:40 UTC | 15m |
| 2026-07-08 | CCA1369 | - | Jul 8, 23:55 UTC | Jul 9, 00:15 UTC | 20m |
| 2026-07-08 | CCA1843 | - | Jul 8, 06:00 UTC | Jul 8, 06:10 UTC | 10m |
| 2026-07-07 | CCA728 | - | Jul 7, 11:00 UTC | Jul 7, 12:05 UTC | 1h 5m |
| 2026-07-07 | CCA727 | - | Jul 7, 00:25 UTC | Jul 7, 09:05 UTC | 8h 40m |
| 2026-07-06 | CCA727 | - | Jul 6, 10:55 UTC | Jul 7, 09:05 UTC | 22h 10m |
| 2026-07-06 | CCA727 | - | Jul 6, 03:10 UTC | Jul 6, 08:45 UTC | 5h 35m |
| 2026-07-05 | CCA726 | - | Jul 5, 04:00 UTC | Jul 6, 03:35 UTC | 23h 35m |
| 2026-07-04 | CCA725 | - | Jul 4, 12:50 UTC | Jul 5, 02:40 UTC | 13h 50m |
| 2026-07-03 | CCA1845 | - | Jul 3, 14:15 UTC | Jul 3, 14:25 UTC | 10m |
| 2026-07-03 | CCA1374 | - | Jul 3, 10:45 UTC | Jul 3, 10:55 UTC | 10m |
| 2026-07-03 | CCA1373 | - | Jul 3, 05:10 UTC | Jul 3, 05:30 UTC | 20m |
| 2026-07-02 | CCA1587 | - | Jul 2, 23:20 UTC | Jul 2, 23:30 UTC | 10m |
| 2026-07-01 | CCA1443 | - | Jul 1, 10:45 UTC | Jul 1, 11:05 UTC | 20m |
| 2026-07-01 | CCA1710 | - | Jul 1, 03:00 UTC | Jul 1, 03:15 UTC | 15m |
| 2026-06-30 | CCA1525 | - | Jun 30, 14:55 UTC | Jun 30, 15:05 UTC | 10m |
| 2026-06-30 | CCA1373 | - | Jun 30, 06:40 UTC | Jun 30, 07:00 UTC | 20m |
| 2026-06-29 | CCA146 | - | Jun 29, 12:14 UTC | Jun 29, 13:54 UTC | 1h 40m |
| 2026-06-29 | CCA145 | - | Jun 29, 04:50 UTC | Jun 29, 10:24 UTC | 5h 35m |
| 2026-06-29 | CCA149 | - | Jun 29, 02:39 UTC | Jun 29, 03:14 UTC | 35m |
| 2026-06-28 | CCA150 | TPE → TPE | Jun 28, 04:50 UTC | Jun 29, 03:14 UTC | 22h 25m |
| 2026-06-28 | CCA149 | - | Jun 28, 02:25 UTC | Jun 28, 02:54 UTC | 30m |
| 2026-06-27 | CCA134 | - | Jun 27, 07:30 UTC | Jun 27, 09:34 UTC | 2h 5m |
| 2026-06-27 | CCA133 | - | Jun 27, 03:15 UTC | Jun 27, 05:15 UTC | 2h 0m |
| 2026-06-26 | CCA1544 | - | Jun 26, 08:30 UTC | Jun 26, 08:40 UTC | 10m |
| 2026-06-26 | CCA1885 | - | Jun 26, 02:20 UTC | Jun 26, 02:30 UTC | 10m |
| 2026-06-25 | CCA116 | - | Jun 25, 12:54 UTC | Jun 25, 13:05 UTC | 10m |
| 2026-06-25 | CCA115 | - | Jun 25, 10:50 UTC | Jun 25, 11:19 UTC | 30m |
| 2026-06-25 | CCA115 | - | Jun 25, 08:24 UTC | Jun 25, 08:40 UTC | 15m |
| 2026-06-25 | CCA1885 | - | Jun 25, 02:30 UTC | Jun 25, 02:39 UTC | 10m |
| 2026-06-24 | CCA740 | - | Jun 24, 05:34 UTC | Jun 24, 06:25 UTC | 50m |
| 2026-06-23 | CCA739 | - | Jun 23, 13:39 UTC | Jun 24, 03:40 UTC | 14h 0m |
| 2026-06-22 | CCA740 | - | Jun 22, 05:40 UTC | Jun 22, 06:15 UTC | 35m |
| 2026-06-22 | CCA739 | - | Jun 22, 03:30 UTC | Jun 22, 04:15 UTC | 45m |
| 2026-06-21 | CCA134 | - | Jun 21, 07:49 UTC | Jun 22, 04:15 UTC | 20h 25m |
| 2026-06-21 | CCA134 | HND → ICN | Jun 21, 07:25 UTC | Jun 22, 04:15 UTC | 20h 50m |
| 2026-06-21 | CCA133 | - | Jun 21, 02:10 UTC | Jun 21, 04:44 UTC | 2h 35m |
| 2026-06-20 | CCA116 | - | Jun 20, 12:30 UTC | Jun 20, 12:50 UTC | 20m |
| 2026-06-20 | CCA115 | - | Jun 20, 10:20 UTC | Jun 20, 10:55 UTC | 35m |
| 2026-06-20 | CCA115 | - | Jun 20, 07:44 UTC | Jun 20, 08:05 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-6741 page for operator, model, and routing details .