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
- 87
- Distinct callsigns
- 13
- Country
- CN
- Last broadcast
- 8d 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CBJ619 | - | 45 | 2026-06-22 |
| CBJ620 | - | 23 | 2026-06-22 |
| CBJ5131 | - | 4 | 2026-06-05 |
| CBJ5649 | - | 3 | 2026-07-09 |
| CBJ420 | - | 2 | 2026-06-24 |
| CBJ419 | - | 2 | 2026-06-24 |
| CBJ5949 | - | 1 | 2026-06-25 |
| CBJ5388 | - | 1 | 2026-04-23 |
| CBJ5270 | - | 1 | 2026-05-09 |
| CBJ5148 | - | 1 | 2026-07-01 |
| CBJ5083 | - | 1 | 2026-06-30 |
| CBJ326 | - | 1 | 2026-04-22 |
| CBJ325 | - | 1 | 2026-04-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-09 | CBJ5649 | - | Jul 9, 01:30 UTC | Jul 9, 01:45 UTC | 15m |
| 2026-07-01 | CBJ5148 | - | Jul 1, 12:20 UTC | Jul 1, 12:30 UTC | 10m |
| 2026-06-30 | CBJ5083 | - | Jun 30, 08:30 UTC | Jun 30, 09:00 UTC | 30m |
| 2026-06-25 | CBJ5949 | - | Jun 25, 07:05 UTC | Jun 25, 07:45 UTC | 40m |
| 2026-06-24 | CBJ420 | - | Jun 24, 06:10 UTC | Jun 24, 08:24 UTC | 2h 15m |
| 2026-06-24 | CBJ419 | - | Jun 24, 02:15 UTC | Jun 24, 04:20 UTC | 2h 5m |
| 2026-06-22 | CBJ620 | - | Jun 22, 08:44 UTC | Jun 22, 11:00 UTC | 2h 15m |
| 2026-06-22 | CBJ619 | - | Jun 22, 04:59 UTC | Jun 22, 07:10 UTC | 2h 10m |
| 2026-06-21 | CBJ619 | - | Jun 21, 10:34 UTC | Jun 22, 07:10 UTC | 20h 35m |
| 2026-06-21 | CBJ620 | - | Jun 21, 08:49 UTC | Jun 22, 07:10 UTC | 22h 20m |
| 2026-06-21 | CBJ619 | - | Jun 21, 04:44 UTC | Jun 21, 07:00 UTC | 2h 15m |
| 2026-06-20 | CBJ620 | - | Jun 20, 08:34 UTC | Jun 21, 07:00 UTC | 22h 25m |
| 2026-06-20 | CBJ619 | - | Jun 20, 04:54 UTC | Jun 20, 07:00 UTC | 2h 5m |
| 2026-06-19 | CBJ619 | - | Jun 19, 10:35 UTC | Jun 20, 07:00 UTC | 20h 25m |
| 2026-06-19 | CBJ620 | - | Jun 19, 08:59 UTC | Jun 20, 07:00 UTC | 22h 0m |
| 2026-06-19 | CBJ619 | - | Jun 19, 04:54 UTC | Jun 19, 07:09 UTC | 2h 15m |
| 2026-06-18 | CBJ619 | - | Jun 18, 10:35 UTC | Jun 19, 07:09 UTC | 20h 34m |
| 2026-06-18 | CBJ620 | - | Jun 18, 08:55 UTC | Jun 19, 07:09 UTC | 22h 14m |
| 2026-06-18 | CBJ619 | - | Jun 18, 05:25 UTC | Jun 18, 07:05 UTC | 1h 40m |
| 2026-06-17 | CBJ620 | - | Jun 17, 08:35 UTC | Jun 18, 07:05 UTC | 22h 30m |
| 2026-06-17 | CBJ619 | - | Jun 17, 05:30 UTC | Jun 17, 07:10 UTC | 1h 40m |
| 2026-06-15 | CBJ620 | - | Jun 15, 08:45 UTC | Jun 16, 01:30 UTC | 16h 45m |
| 2026-06-15 | CBJ619 | - | Jun 15, 05:00 UTC | Jun 15, 07:15 UTC | 2h 15m |
| 2026-06-14 | CBJ619 | - | Jun 14, 10:35 UTC | Jun 15, 07:15 UTC | 20h 39m |
| 2026-06-14 | CBJ620 | - | Jun 14, 08:55 UTC | Jun 15, 07:15 UTC | 22h 19m |
| 2026-06-14 | CBJ619 | - | Jun 14, 04:55 UTC | Jun 14, 07:05 UTC | 2h 10m |
| 2026-06-13 | CBJ620 | BKK → BKK | Jun 13, 08:35 UTC | Jun 14, 07:05 UTC | 22h 30m |
| 2026-06-13 | CBJ619 | - | Jun 13, 04:55 UTC | Jun 13, 07:10 UTC | 2h 15m |
| 2026-06-12 | CBJ619 | - | Jun 12, 08:45 UTC | Jun 13, 07:10 UTC | 22h 24m |
| 2026-06-12 | CBJ619 | - | Jun 12, 04:55 UTC | Jun 12, 07:10 UTC | 2h 15m |
| 2026-06-11 | CBJ620 | - | Jun 11, 08:50 UTC | Jun 12, 07:10 UTC | 22h 21m |
| 2026-06-11 | CBJ619 | - | Jun 11, 04:50 UTC | Jun 11, 07:10 UTC | 2h 20m |
| 2026-06-10 | CBJ620 | - | Jun 10, 08:45 UTC | Jun 11, 07:10 UTC | 22h 25m |
| 2026-06-10 | CBJ619 | - | Jun 10, 07:05 UTC | Jun 10, 07:30 UTC | 25m |
| 2026-06-10 | CBJ619 | - | Jun 10, 05:15 UTC | Jun 10, 05:55 UTC | 40m |
| 2026-06-09 | CBJ620 | - | Jun 9, 09:00 UTC | Jun 10, 05:55 UTC | 20h 55m |
| 2026-06-09 | CBJ619 | - | Jun 9, 04:55 UTC | Jun 9, 07:15 UTC | 2h 20m |
| 2026-06-08 | CBJ619 | - | Jun 8, 10:35 UTC | Jun 9, 07:15 UTC | 20h 40m |
| 2026-06-08 | CBJ620 | - | Jun 8, 09:00 UTC | Jun 9, 07:15 UTC | 22h 15m |
| 2026-06-08 | CBJ619 | - | Jun 8, 05:30 UTC | Jun 8, 07:30 UTC | 2h 0m |
| 2026-06-07 | CBJ619 | - | Jun 7, 10:45 UTC | Jun 8, 07:30 UTC | 20h 45m |
| 2026-06-07 | CBJ619 | - | Jun 7, 08:40 UTC | Jun 8, 07:30 UTC | 22h 50m |
| 2026-06-07 | CBJ619 | - | Jun 7, 04:45 UTC | Jun 7, 07:10 UTC | 2h 25m |
| 2026-06-05 | CBJ5131 | - | Jun 5, 10:35 UTC | Jun 6, 05:05 UTC | 18h 30m |
| 2026-06-05 | CBJ620 | - | Jun 5, 08:50 UTC | Jun 6, 05:05 UTC | 20h 15m |
| 2026-06-05 | CBJ619 | - | Jun 5, 05:10 UTC | Jun 5, 07:25 UTC | 2h 15m |
| 2026-06-04 | CBJ619 | - | Jun 4, 10:35 UTC | Jun 5, 07:25 UTC | 20h 50m |
| 2026-06-04 | CBJ620 | - | Jun 4, 08:50 UTC | Jun 5, 05:25 UTC | 20h 35m |
| 2026-06-04 | CBJ619 | - | Jun 4, 05:05 UTC | Jun 4, 07:40 UTC | 2h 35m |
| 2026-06-03 | CBJ619 | - | Jun 3, 10:35 UTC | Jun 4, 07:40 UTC | 21h 5m |
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 .