sensors Mode-S transponder
781213
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1306 · BOEING 737-800
- Hex
- 781213
- Octal
- 36011023
- Decimal
- 7,868,947
- Country
- CN
- Tail
- B-1306
- Type
- B738
- Flights observed
- 146
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 10:25 UTC
Current position
Country allocation
The ICAO 24-bit address 781213 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 |
|---|---|---|---|
| CES742 | China Eastern Airlines | 22 | 2026-07-26 |
| CES741 | - | 22 | 2026-07-14 |
| CES555 | China Eastern Airlines | 18 | 2026-07-25 |
| CES556 | China Eastern Airlines | 17 | 2026-07-25 |
| CES2036 | - | 12 | 2026-07-08 |
| CES2035 | - | 12 | 2026-06-18 |
| CES9621 | - | 8 | 2026-07-07 |
| CES9622 | - | 5 | 2026-07-08 |
| CES5082 | - | 4 | 2026-07-10 |
| CES9658 | - | 3 | 2026-06-30 |
| CES9624 | - | 3 | 2026-06-24 |
| CES5081 | - | 3 | 2026-07-10 |
| CES9623 | - | 2 | 2026-06-24 |
| CES5760 | China Eastern Airlines | 2 | 2026-05-21 |
| CES5758 | - | 2 | 2026-07-11 |
| CES9620 | China Eastern Airlines | 1 | 2026-04-24 |
| CES9619 | China Eastern Airlines | 1 | 2026-04-24 |
| CES9614 | China Eastern Airlines | 1 | 2026-05-02 |
| CES9613 | China Eastern Airlines | 1 | 2026-05-02 |
| CES9604 | China Eastern Airlines | 1 | 2026-05-08 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CES742 | BKK → KMG | Jul 26, 09:00 UTC | Jul 26, 10:25 UTC | 1h 25m |
| 2026-07-25 | CES556 | CCU → KMG | Jul 25, 19:40 UTC | Jul 26, 07:30 UTC | 11h 51m |
| 2026-07-25 | CES555 | KMG → CCU | Jul 25, 16:35 UTC | Jul 25, 18:00 UTC | 1h 25m |
| 2026-07-24 | CES742 | BKK → KMG | Jul 24, 09:15 UTC | Jul 24, 10:35 UTC | 1h 20m |
| 2026-07-23 | CES556 | CCU → KMG | Jul 23, 19:35 UTC | Jul 24, 07:55 UTC | 12h 20m |
| 2026-07-23 | CES555 | KMG → CCU | Jul 23, 16:45 UTC | Jul 23, 18:10 UTC | 1h 25m |
| 2026-07-22 | CES9603 | KMG → VTE | Jul 22, 00:30 UTC | Jul 22, 10:25 UTC | 9h 55m |
| 2026-07-20 | CES556 | CCU → KMG | Jul 20, 20:15 UTC | Jul 20, 21:40 UTC | 1h 25m |
| 2026-07-20 | CES555 | KMG → CCU | Jul 20, 17:20 UTC | Jul 20, 19:00 UTC | 1h 40m |
| 2026-07-18 | CES556 | CCU → KMG | Jul 18, 19:30 UTC | Jul 18, 20:55 UTC | 1h 25m |
| 2026-07-18 | CES556 | CCU → KMG | Jul 18, 19:20 UTC | Jul 18, 19:25 UTC | 5m |
| 2026-07-18 | CES555 | KMG → CCU | Jul 18, 16:45 UTC | Jul 18, 18:05 UTC | 1h 20m |
| 2026-07-17 | CES742 | - | Jul 17, 09:15 UTC | Jul 17, 10:30 UTC | 1h 15m |
| 2026-07-16 | CES556 | - | Jul 16, 19:35 UTC | Jul 17, 07:50 UTC | 12h 15m |
| 2026-07-16 | CES555 | - | Jul 16, 17:10 UTC | Jul 16, 18:19 UTC | 1h 10m |
| 2026-07-14 | CES742 | - | Jul 14, 09:25 UTC | Jul 14, 10:55 UTC | 1h 30m |
| 2026-07-14 | CES741 | - | Jul 14, 07:35 UTC | Jul 14, 08:05 UTC | 30m |
| 2026-07-13 | CES556 | - | Jul 13, 19:35 UTC | Jul 14, 06:35 UTC | 11h 0m |
| 2026-07-13 | CES555 | - | Jul 13, 16:45 UTC | Jul 13, 18:10 UTC | 1h 25m |
| 2026-07-12 | CES742 | - | Jul 12, 09:00 UTC | Jul 12, 10:25 UTC | 1h 25m |
| 2026-07-12 | CES741 | - | Jul 12, 07:15 UTC | Jul 12, 07:40 UTC | 25m |
| 2026-07-11 | CES556 | - | Jul 11, 20:15 UTC | Jul 12, 06:20 UTC | 10h 5m |
| 2026-07-11 | CES555 | - | Jul 11, 16:50 UTC | Jul 11, 19:05 UTC | 2h 15m |
| 2026-07-11 | CES5758 | - | Jul 11, 10:00 UTC | Jul 11, 10:10 UTC | 10m |
| 2026-07-10 | CES5082 | - | Jul 10, 05:10 UTC | Jul 10, 14:55 UTC | 9h 45m |
| 2026-07-10 | CES5081 | - | Jul 10, 00:10 UTC | Jul 10, 03:15 UTC | 3h 5m |
| 2026-07-08 | CES2036 | - | Jul 8, 08:35 UTC | Jul 8, 10:00 UTC | 1h 25m |
| 2026-07-08 | CES9622 | BKK → DAC | Jul 8, 00:55 UTC | Jul 8, 06:45 UTC | 5h 50m |
| 2026-07-07 | CES9621 | - | Jul 7, 15:40 UTC | Jul 7, 17:00 UTC | 1h 20m |
| 2026-07-05 | CES556 | - | Jul 5, 19:30 UTC | Jul 6, 06:35 UTC | 11h 5m |
| 2026-07-05 | CES555 | - | Jul 5, 12:30 UTC | Jul 5, 18:15 UTC | 5h 45m |
| 2026-07-05 | CES5758 | - | Jul 5, 11:45 UTC | Jul 5, 11:55 UTC | 10m |
| 2026-07-05 | CES5757 | - | Jul 5, 10:10 UTC | Jul 5, 10:20 UTC | 10m |
| 2026-07-03 | CES742 | - | Jul 3, 09:20 UTC | Jul 3, 10:45 UTC | 1h 25m |
| 2026-07-02 | CES556 | - | Jul 2, 19:35 UTC | Jul 3, 08:00 UTC | 12h 25m |
| 2026-07-02 | CES555 | - | Jul 2, 04:45 UTC | Jul 2, 18:10 UTC | 13h 25m |
| 2026-07-01 | CES742 | - | Jul 1, 09:15 UTC | Jul 2, 07:20 UTC | 22h 5m |
| 2026-06-30 | CES741 | - | Jun 30, 14:40 UTC | Jul 1, 08:00 UTC | 17h 20m |
| 2026-06-30 | CES9658 | - | Jun 30, 13:50 UTC | Jun 30, 14:00 UTC | 10m |
| 2026-06-30 | CES5082 | - | Jun 30, 04:55 UTC | Jun 30, 12:05 UTC | 7h 10m |
| 2026-06-29 | CES556 | - | Jun 29, 19:54 UTC | Jun 30, 03:15 UTC | 7h 20m |
| 2026-06-29 | CES555 | - | Jun 29, 17:14 UTC | Jun 29, 18:39 UTC | 1h 25m |
| 2026-06-28 | CES742 | - | Jun 28, 09:25 UTC | Jun 28, 09:55 UTC | 30m |
| 2026-06-27 | CES741 | - | Jun 27, 19:39 UTC | Jun 28, 07:44 UTC | 12h 5m |
| 2026-06-27 | CES555 | - | Jun 27, 17:34 UTC | Jun 27, 18:20 UTC | 45m |
| 2026-06-26 | CES742 | - | Jun 26, 09:24 UTC | Jun 26, 09:55 UTC | 30m |
| 2026-06-25 | CES556 | CCU → BKK | Jun 25, 19:24 UTC | Jun 26, 08:00 UTC | 12h 35m |
| 2026-06-25 | CES555 | - | Jun 25, 11:30 UTC | Jun 25, 18:10 UTC | 6h 40m |
| 2026-06-24 | CES556 | - | Jun 24, 19:39 UTC | Jun 25, 09:29 UTC | 13h 50m |
| 2026-06-24 | CES555 | - | Jun 24, 04:44 UTC | Jun 24, 17:59 UTC | 13h 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-1306 page for operator, model, and routing details .