sensors Mode-S transponder
78137A
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1245 · AIRBUS A-320neo
- Hex
- 78137A
- Octal
- 36011572
- Decimal
- 7,869,306
- Country
- CN
- Tail
- B-1245
- Type
- A20N
- Flights observed
- 34
- Distinct callsigns
- 10
- Country
- CN
- Last broadcast
- 8h ago
Last known position
Country allocation
The ICAO 24-bit address 78137A 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 10 distinct
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CBJ620 | - | Jun 2, 09:15 UTC | Jun 2, 10:55 UTC | 1h 40m |
| 2026-06-02 | CBJ619 | - | Jun 2, 05:20 UTC | Jun 2, 07:10 UTC | 1h 50m |
| 2026-05-17 | CBJ420 | - | May 17, 06:10 UTC | May 17, 08:25 UTC | 2h 15m |
| 2026-05-17 | CBJ419 | - | May 17, 02:20 UTC | May 17, 04:35 UTC | 2h 15m |
| 2026-05-10 | - | - | May 10, 13:19 UTC | May 10, 13:30 UTC | 10m |
| 2026-05-09 | CBJ5270 | - | May 9, 14:30 UTC | May 9, 14:40 UTC | 10m |
| 2026-05-02 | CBJ5649 | - | May 2, 01:10 UTC | May 2, 01:20 UTC | 10m |
| 2026-05-01 | CBJ5131 | - | May 1, 04:05 UTC | May 2, 01:20 UTC | 21h 15m |
| 2026-04-30 | CBJ620 | - | Apr 30, 09:10 UTC | May 1, 04:20 UTC | 19h 10m |
| 2026-04-30 | CBJ619 | - | Apr 30, 07:05 UTC | Apr 30, 07:35 UTC | 30m |
| 2026-04-29 | CBJ620 | BKK → BKK | Apr 29, 09:05 UTC | Apr 30, 07:35 UTC | 22h 29m |
| 2026-04-29 | CBJ619 | - | Apr 29, 05:25 UTC | Apr 29, 07:40 UTC | 2h 15m |
| 2026-04-28 | CBJ619 | - | Apr 28, 09:10 UTC | Apr 29, 07:40 UTC | 22h 30m |
| 2026-04-28 | CBJ619 | - | Apr 28, 04:55 UTC | Apr 28, 07:40 UTC | 2h 45m |
| 2026-04-27 | CBJ5131 | - | Apr 27, 04:05 UTC | Apr 27, 04:25 UTC | 20m |
| 2026-04-26 | CBJ620 | - | Apr 26, 08:50 UTC | Apr 26, 09:20 UTC | 30m |
| 2026-04-26 | CBJ619 | - | Apr 26, 04:45 UTC | Apr 26, 07:20 UTC | 2h 35m |
| 2026-04-25 | CBJ619 | - | Apr 25, 08:55 UTC | Apr 26, 07:20 UTC | 22h 25m |
| 2026-04-25 | CBJ619 | - | Apr 25, 05:00 UTC | Apr 25, 07:40 UTC | 2h 40m |
| 2026-04-23 | CBJ5388 | - | Apr 23, 11:05 UTC | Apr 23, 11:25 UTC | 20m |
| 2026-04-22 | CBJ326 | - | Apr 22, 13:05 UTC | Apr 23, 11:25 UTC | 22h 20m |
| 2026-04-22 | CBJ325 | - | Apr 22, 11:00 UTC | Apr 22, 11:15 UTC | 15m |
| 2026-04-22 | CBJ5131 | - | Apr 22, 04:20 UTC | Apr 22, 04:30 UTC | 10m |
| 2026-04-21 | CBJ5649 | - | Apr 21, 01:40 UTC | Apr 21, 01:55 UTC | 15m |
| 2026-04-18 | CBJ620 | - | Apr 18, 09:50 UTC | Apr 18, 10:10 UTC | 20m |
| 2026-04-18 | CBJ619 | - | Apr 18, 08:15 UTC | Apr 18, 08:35 UTC | 20m |
| 2026-04-18 | CBJ619 | - | Apr 18, 06:00 UTC | Apr 18, 06:25 UTC | 25m |
| 2026-04-17 | CBJ620 | - | Apr 17, 08:55 UTC | Apr 17, 09:15 UTC | 20m |
| 2026-04-17 | CBJ619 | - | Apr 17, 07:20 UTC | Apr 17, 07:30 UTC | 10m |
| 2026-04-17 | CBJ619 | - | Apr 17, 05:00 UTC | Apr 17, 05:15 UTC | 15m |
| 2026-04-16 | CBJ620 | - | Apr 16, 09:10 UTC | Apr 16, 09:19 UTC | 10m |
| 2026-04-16 | CBJ620 | - | Apr 16, 08:50 UTC | Apr 16, 09:05 UTC | 15m |
| 2026-04-16 | CBJ619 | - | Apr 16, 07:09 UTC | Apr 16, 07:34 UTC | 25m |
| 2026-04-16 | CBJ619 | - | Apr 16, 05:09 UTC | Apr 16, 07:05 UTC | 1h 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-1245 page for operator, model, and routing details .