sensors Mode-S transponder
781CBC
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-327A · AIRBUS A-320neo
- Hex
- 781CBC
- Octal
- 36016274
- Decimal
- 7,871,676
- Country
- CN
- Tail
- B-327A
- Type
- A20N
- Flights observed
- 66
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address 781CBC 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 |
|---|---|---|---|
| CES2040 | China Eastern Airlines | 8 | 2026-05-30 |
| CES6903 | - | 7 | 2026-07-10 |
| CES2039 | China Eastern Airlines | 6 | 2026-05-30 |
| CES894 | China Eastern Airlines | 5 | 2026-06-03 |
| CES893 | China Eastern Airlines | 5 | 2026-06-03 |
| CES2034 | - | 4 | 2026-06-24 |
| CES2033 | - | 4 | 2026-06-24 |
| CES857 | - | 3 | 2026-06-18 |
| CES898 | China Eastern Airlines | 2 | 2026-04-15 |
| CES897 | China Eastern Airlines | 2 | 2026-04-15 |
| CES858 | - | 2 | 2026-06-18 |
| CES2411 | - | 2 | 2026-06-27 |
| CES892 | - | 1 | 2026-07-14 |
| CES891 | - | 1 | 2026-07-14 |
| CES7368 | - | 1 | 2026-07-12 |
| CES7367 | - | 1 | 2026-07-12 |
| CES6704 | - | 1 | 2026-07-07 |
| CES6703 | - | 1 | 2026-07-06 |
| CES6491 | - | 1 | 2026-06-23 |
| CES6098 | - | 1 | 2026-06-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CES5245 | - | Jul 17, 12:30 UTC | Jul 17, 12:50 UTC | 20m |
| 2026-07-14 | CES892 | - | Jul 14, 06:50 UTC | Jul 14, 12:00 UTC | 5h 10m |
| 2026-07-14 | CES891 | - | Jul 14, 05:15 UTC | Jul 14, 05:35 UTC | 20m |
| 2026-07-12 | CES7368 | - | Jul 12, 17:35 UTC | Jul 12, 18:55 UTC | 1h 20m |
| 2026-07-12 | CES7367 | - | Jul 12, 14:45 UTC | Jul 12, 16:05 UTC | 1h 20m |
| 2026-07-11 | CES5068 | - | Jul 11, 08:05 UTC | Jul 11, 08:25 UTC | 20m |
| 2026-07-11 | CES5067 | - | Jul 11, 06:05 UTC | Jul 11, 06:25 UTC | 20m |
| 2026-07-10 | CES6903 | - | Jul 10, 00:25 UTC | Jul 10, 01:00 UTC | 35m |
| 2026-07-09 | CES6903 | - | Jul 9, 01:05 UTC | Jul 10, 01:00 UTC | 23h 55m |
| 2026-07-09 | CES6903 | - | Jul 9, 00:55 UTC | Jul 9, 01:10 UTC | 15m |
| 2026-07-07 | CES6704 | - | Jul 7, 01:10 UTC | Jul 7, 01:30 UTC | 20m |
| 2026-07-06 | CES6703 | - | Jul 6, 23:10 UTC | Jul 6, 23:40 UTC | 30m |
| 2026-07-03 | CES6903 | - | Jul 3, 00:40 UTC | Jul 3, 01:05 UTC | 25m |
| 2026-07-01 | CES6903 | - | Jul 1, 00:35 UTC | Jul 1, 00:50 UTC | 15m |
| 2026-06-28 | CES2130 | - | Jun 28, 04:05 UTC | Jun 28, 04:15 UTC | 10m |
| 2026-06-27 | CES2411 | - | Jun 27, 01:09 UTC | Jun 27, 01:24 UTC | 15m |
| 2026-06-26 | CES6098 | - | Jun 26, 04:50 UTC | Jun 26, 04:59 UTC | 10m |
| 2026-06-26 | CES6097 | - | Jun 26, 02:30 UTC | Jun 26, 03:20 UTC | 50m |
| 2026-06-24 | CES2034 | - | Jun 24, 04:30 UTC | Jun 24, 04:55 UTC | 25m |
| 2026-06-24 | CES2033 | - | Jun 24, 02:20 UTC | Jun 24, 02:49 UTC | 30m |
| 2026-06-23 | CES6491 | - | Jun 23, 08:45 UTC | Jun 23, 09:14 UTC | 30m |
| 2026-06-18 | CES858 | - | Jun 18, 20:20 UTC | Jun 19, 10:44 UTC | 14h 24m |
| 2026-06-18 | CES857 | - | Jun 18, 18:35 UTC | Jun 18, 18:50 UTC | 15m |
| 2026-06-18 | CES857 | - | Jun 18, 15:55 UTC | Jun 18, 16:30 UTC | 35m |
| 2026-06-13 | CES2197 | CSX → FOC | Jun 13, 09:10 UTC | Jun 13, 09:20 UTC | 10m |
| 2026-06-10 | CES2400 | - | Jun 10, 10:50 UTC | Jun 10, 11:05 UTC | 15m |
| 2026-06-09 | CES858 | KUL → KMG | Jun 9, 20:15 UTC | Jun 10, 09:05 UTC | 12h 50m |
| 2026-06-09 | CES857 | KMG → KUL | Jun 9, 16:45 UTC | Jun 9, 19:30 UTC | 2h 45m |
| 2026-06-03 | CES894 | BKK → LHW | Jun 3, 19:35 UTC | Jun 4, 11:15 UTC | 15h 40m |
| 2026-06-03 | CES893 | LHW → BKK | Jun 3, 17:00 UTC | Jun 3, 17:55 UTC | 55m |
| 2026-05-30 | CES2040 | ICN → TAO | May 30, 03:05 UTC | May 30, 03:35 UTC | 30m |
| 2026-05-30 | CES2039 | TAO → ICN | May 30, 01:25 UTC | May 30, 01:40 UTC | 15m |
| 2026-05-29 | CES6903 | PVG → KWL | May 29, 00:30 UTC | May 29, 00:55 UTC | 25m |
| 2026-05-22 | CES2040 | ICN → TAO | May 22, 03:40 UTC | May 22, 04:10 UTC | 30m |
| 2026-05-22 | CES2039 | TAO → ICN | May 22, 01:15 UTC | May 22, 01:40 UTC | 25m |
| 2026-05-21 | CES2040 | ICN → TAO | May 21, 03:15 UTC | May 21, 03:45 UTC | 30m |
| 2026-05-21 | CES2039 | TAO → ICN | May 21, 01:15 UTC | May 21, 01:45 UTC | 30m |
| 2026-05-20 | CES2040 | ICN → TAO | May 20, 03:25 UTC | May 20, 03:45 UTC | 20m |
| 2026-05-20 | CES2039 | TAO → ICN | May 20, 01:20 UTC | May 20, 01:45 UTC | 25m |
| 2026-05-19 | CES2034 | ICN → TAO | May 19, 04:45 UTC | May 19, 09:15 UTC | 4h 30m |
| 2026-05-19 | CES2033 | TAO → ICN | May 19, 03:00 UTC | May 19, 03:30 UTC | 30m |
| 2026-05-18 | CES2034 | ICN → TAO | May 18, 04:25 UTC | May 18, 04:45 UTC | 20m |
| 2026-05-18 | CES2033 | TAO → ICN | May 18, 02:30 UTC | May 18, 02:45 UTC | 15m |
| 2026-05-16 | CES2040 | ICN → TAO | May 16, 03:10 UTC | May 16, 03:35 UTC | 25m |
| 2026-05-16 | CES2039 | TAO → ICN | May 16, 01:30 UTC | May 16, 01:45 UTC | 15m |
| 2026-05-15 | CES2040 | ICN → TAO | May 15, 03:30 UTC | May 15, 03:55 UTC | 25m |
| 2026-05-15 | CES2039 | TAO → ICN | May 15, 01:35 UTC | May 15, 01:40 UTC | 5m |
| 2026-05-13 | CES2040 | ICN → TAO | May 13, 03:20 UTC | May 13, 03:30 UTC | 10m |
| 2026-05-12 | CES2040 | ICN → TAO | May 12, 03:10 UTC | May 12, 03:35 UTC | 25m |
| 2026-05-06 | CES894 | BKK → LHW | May 6, 19:45 UTC | May 6, 20:40 UTC | 55m |
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-327A page for operator, model, and routing details .