sensors Mode-S transponder
780C3B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1827 · AIRBUS A-320
- Hex
- 780C3B
- Octal
- 36006073
- Decimal
- 7,867,451
- Country
- CN
- Tail
- B-1827
- Type
- A320
- Flights observed
- 65
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 08:50 UTC
Last known position
Country allocation
The ICAO 24-bit address 780C3B 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 |
|---|---|---|---|
| CQN2074 | - | 12 | 2026-07-01 |
| CQN2103 | - | 11 | 2026-06-22 |
| CQN2361 | - | 6 | 2026-07-17 |
| CQN2362 | - | 4 | 2026-07-17 |
| CQN2111 | - | 3 | 2026-07-15 |
| CQN2025 | - | 3 | 2026-07-22 |
| CQN2386 | - | 2 | 2026-06-15 |
| CQN2346 | - | 2 | 2026-06-28 |
| CQN2342 | - | 2 | 2026-07-26 |
| CQN2139 | - | 2 | 2026-04-15 |
| CQN2105 | - | 2 | 2026-07-25 |
| CQN2066 | - | 2 | 2026-06-06 |
| CQN2065 | Chongqing Airlines | 2 | 2026-05-04 |
| CQN2345 | - | 1 | 2026-06-28 |
| CQN2341 | - | 1 | 2026-07-26 |
| CQN2332 | - | 1 | 2026-07-13 |
| CQN2331 | - | 1 | 2026-07-11 |
| CQN2330 | - | 1 | 2026-06-24 |
| CQN2326 | - | 1 | 2026-06-23 |
| CQN2133 | - | 1 | 2026-05-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CQN2342 | - | Jul 26, 08:40 UTC | Jul 26, 08:50 UTC | 10m |
| 2026-07-26 | CQN2341 | - | Jul 26, 06:30 UTC | Jul 26, 06:40 UTC | 11m |
| 2026-07-25 | CQN2106 | - | Jul 25, 12:30 UTC | Jul 25, 12:40 UTC | 10m |
| 2026-07-25 | CQN2105 | - | Jul 25, 09:40 UTC | Jul 25, 09:55 UTC | 15m |
| 2026-07-22 | CQN2025 | - | Jul 22, 00:30 UTC | Jul 22, 01:30 UTC | 1h 0m |
| 2026-07-17 | CQN2362 | - | Jul 17, 18:40 UTC | Jul 17, 20:04 UTC | 1h 25m |
| 2026-07-17 | CQN2361 | - | Jul 17, 15:40 UTC | Jul 17, 17:05 UTC | 1h 25m |
| 2026-07-16 | CQN2105 | - | Jul 16, 07:30 UTC | Jul 16, 08:30 UTC | 1h 0m |
| 2026-07-15 | CQN2111 | - | Jul 15, 10:35 UTC | Jul 15, 11:25 UTC | 50m |
| 2026-07-13 | CQN2332 | - | Jul 13, 12:25 UTC | Jul 13, 14:50 UTC | 2h 25m |
| 2026-07-11 | CQN2331 | - | Jul 11, 11:45 UTC | Jul 11, 12:05 UTC | 20m |
| 2026-07-08 | CQN2039 | - | Jul 8, 23:50 UTC | Jul 9, 00:05 UTC | 15m |
| 2026-07-01 | CQN2074 | - | Jul 1, 01:45 UTC | Jul 1, 14:15 UTC | 12h 30m |
| 2026-06-30 | CQN2074 | - | Jun 30, 14:50 UTC | Jul 1, 14:15 UTC | 23h 25m |
| 2026-06-30 | CQN2074 | - | Jun 30, 14:25 UTC | Jul 1, 10:15 UTC | 19h 50m |
| 2026-06-30 | CQN2076 | - | Jun 30, 11:30 UTC | Jul 1, 10:15 UTC | 22h 45m |
| 2026-06-30 | CQN2074 | - | Jun 30, 02:00 UTC | Jun 30, 14:55 UTC | 12h 55m |
| 2026-06-29 | CQN2074 | - | Jun 29, 13:54 UTC | Jun 30, 11:55 UTC | 22h 1m |
| 2026-06-29 | CQN2074 | - | Jun 29, 10:04 UTC | Jun 30, 02:25 UTC | 16h 21m |
| 2026-06-29 | CQN2074 | - | Jun 29, 02:05 UTC | Jun 29, 14:25 UTC | 12h 20m |
| 2026-06-28 | CQN2346 | - | Jun 28, 15:24 UTC | Jun 28, 15:40 UTC | 15m |
| 2026-06-28 | CQN2345 | - | Jun 28, 13:34 UTC | Jun 28, 13:55 UTC | 20m |
| 2026-06-27 | CQN2342 | - | Jun 27, 08:44 UTC | Jun 27, 09:00 UTC | 15m |
| 2026-06-26 | CQN2074 | - | Jun 26, 13:59 UTC | Jun 27, 06:35 UTC | 16h 35m |
| 2026-06-26 | CQN2074 | - | Jun 26, 09:55 UTC | Jun 27, 06:35 UTC | 20h 40m |
| 2026-06-26 | CQN2073 | - | Jun 26, 01:54 UTC | Jun 26, 14:19 UTC | 12h 25m |
| 2026-06-25 | CQN2074 | - | Jun 25, 13:40 UTC | Jun 26, 10:20 UTC | 20h 40m |
| 2026-06-25 | CQN2074 | - | Jun 25, 09:55 UTC | Jun 26, 02:24 UTC | 16h 30m |
| 2026-06-25 | CQN2074 | - | Jun 25, 02:05 UTC | Jun 25, 14:04 UTC | 12h 0m |
| 2026-06-24 | CQN2330 | - | Jun 24, 04:59 UTC | Jun 25, 02:35 UTC | 21h 35m |
| 2026-06-23 | CQN2326 | - | Jun 23, 14:59 UTC | Jun 23, 15:09 UTC | 10m |
| 2026-06-22 | CQN2103 | - | Jun 22, 23:39 UTC | Jun 23, 00:45 UTC | 1h 5m |
| 2026-06-22 | CQN2103 | - | Jun 22, 01:05 UTC | Jun 22, 02:00 UTC | 55m |
| 2026-06-21 | CQN2103 | - | Jun 21, 01:19 UTC | Jun 21, 01:35 UTC | 15m |
| 2026-06-15 | CQN2386 | - | Jun 15, 12:35 UTC | Jun 15, 12:49 UTC | 15m |
| 2026-06-06 | CQN2066 | - | Jun 6, 12:30 UTC | Jun 6, 12:40 UTC | 10m |
| 2026-06-03 | CQN2003 | - | Jun 3, 10:00 UTC | Jun 3, 10:30 UTC | 30m |
| 2026-06-02 | CQN2103 | - | Jun 2, 00:55 UTC | Jun 2, 01:45 UTC | 50m |
| 2026-06-01 | CQN2103 | - | Jun 1, 01:10 UTC | Jun 1, 01:35 UTC | 25m |
| 2026-05-30 | CQN2103 | - | May 30, 01:05 UTC | May 30, 01:45 UTC | 40m |
| 2026-05-29 | CQN2111 | - | May 29, 13:25 UTC | May 29, 13:45 UTC | 20m |
| 2026-05-23 | CQN2111 | - | May 23, 10:30 UTC | May 23, 10:45 UTC | 15m |
| 2026-05-21 | CQN2133 | - | May 21, 09:55 UTC | May 21, 10:10 UTC | 15m |
| 2026-05-20 | CQN2103 | - | May 20, 01:35 UTC | May 20, 01:50 UTC | 15m |
| 2026-05-19 | CQN2103 | - | May 19, 01:00 UTC | May 19, 01:15 UTC | 15m |
| 2026-05-15 | CQN2386 | - | May 15, 15:15 UTC | May 15, 15:30 UTC | 15m |
| 2026-05-12 | CQN2362 | BKK → CKG | May 12, 18:20 UTC | May 12, 19:20 UTC | 1h 0m |
| 2026-05-12 | CQN2361 | CKG → BKK | May 12, 15:55 UTC | May 12, 16:50 UTC | 55m |
| 2026-05-11 | CQN2361 | CKG → BKK | May 11, 18:50 UTC | May 12, 16:50 UTC | 22h 0m |
| 2026-05-11 | CQN2362 | BKK → CKG | May 11, 18:05 UTC | May 12, 16:45 UTC | 22h 40m |
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-1827 page for operator, model, and routing details .