sensors Mode-S transponder
78137C
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1247 · AIRBUS A-320neo
- Hex
- 78137C
- Octal
- 36011574
- Decimal
- 7,869,308
- Country
- CN
- Tail
- B-1247
- Type
- A20N
- Flights observed
- 43
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 78137C 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 |
|---|---|---|---|
| CBJ619 | - | 9 | 2026-05-24 |
| CBJ5724 | - | 6 | 2026-05-29 |
| CBJ620 | - | 3 | 2026-05-24 |
| CBJ5618 | - | 3 | 2026-04-26 |
| CBJ5554 | - | 3 | 2026-05-06 |
| CBJ5553 | - | 3 | 2026-05-05 |
| CBJ5896 | - | 1 | 2026-04-29 |
| CBJ5726 | - | 1 | 2026-05-29 |
| CBJ5685 | - | 1 | 2026-05-27 |
| CBJ5649 | - | 1 | 2026-04-17 |
| CBJ5569 | - | 1 | 2026-04-27 |
| CBJ5537 | - | 1 | 2026-05-07 |
| CBJ5513 | - | 1 | 2026-04-13 |
| CBJ5388 | - | 1 | 2026-04-20 |
| CBJ5291 | - | 1 | 2026-05-28 |
| CBJ5131 | - | 1 | 2026-04-18 |
| CBJ5084 | - | 1 | 2026-05-30 |
| CBJ5036 | - | 1 | 2026-04-15 |
| CBJ420 | - | 1 | 2026-05-04 |
| CBJ419 | - | 1 | 2026-05-04 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CBJ5084 | - | May 30, 11:20 UTC | May 30, 11:55 UTC | 35m |
| 2026-05-29 | CBJ5724 | - | May 29, 23:30 UTC | May 30, 09:50 UTC | 10h 20m |
| 2026-05-29 | CBJ5724 | - | May 29, 13:55 UTC | May 30, 09:50 UTC | 19h 55m |
| 2026-05-29 | CBJ5726 | - | May 29, 08:25 UTC | May 29, 23:30 UTC | 15h 5m |
| 2026-05-28 | CBJ5291 | - | May 28, 08:40 UTC | May 28, 08:50 UTC | 10m |
| 2026-05-27 | CBJ5685 | - | May 27, 23:55 UTC | May 28, 00:10 UTC | 15m |
| 2026-05-24 | CBJ620 | - | May 24, 09:10 UTC | May 24, 10:05 UTC | 55m |
| 2026-05-24 | CBJ619 | - | May 24, 05:40 UTC | May 24, 07:55 UTC | 2h 15m |
| 2026-05-23 | CBJ619 | - | May 23, 09:05 UTC | May 24, 07:55 UTC | 22h 51m |
| 2026-05-23 | CBJ620 | - | May 23, 08:45 UTC | May 24, 05:50 UTC | 21h 6m |
| 2026-05-23 | CBJ619 | - | May 23, 06:15 UTC | May 23, 07:05 UTC | 50m |
| 2026-05-22 | CBJ619 | - | May 22, 09:05 UTC | May 23, 07:05 UTC | 21h 59m |
| 2026-05-22 | CBJ620 | - | May 22, 08:45 UTC | May 23, 07:00 UTC | 22h 14m |
| 2026-05-22 | CBJ619 | - | May 22, 05:05 UTC | May 22, 07:30 UTC | 2h 25m |
| 2026-05-21 | CBJ619 | - | May 21, 09:05 UTC | May 22, 07:30 UTC | 22h 25m |
| 2026-05-21 | CBJ619 | - | May 21, 08:45 UTC | May 22, 07:00 UTC | 22h 15m |
| 2026-05-21 | CBJ619 | - | May 21, 04:55 UTC | May 21, 07:15 UTC | 2h 20m |
| 2026-05-20 | CBJ619 | - | May 20, 08:10 UTC | May 21, 07:00 UTC | 22h 50m |
| 2026-05-07 | CBJ5537 | - | May 7, 11:50 UTC | May 7, 12:15 UTC | 25m |
| 2026-05-06 | CBJ5554 | - | May 6, 08:45 UTC | May 6, 12:20 UTC | 3h 35m |
| 2026-05-05 | CBJ5553 | - | May 5, 08:50 UTC | May 6, 02:55 UTC | 18h 5m |
| 2026-05-04 | CBJ5724 | - | May 4, 23:20 UTC | May 5, 09:15 UTC | 9h 55m |
| 2026-05-04 | CBJ420 | - | May 4, 06:25 UTC | May 4, 23:35 UTC | 17h 11m |
| 2026-05-04 | CBJ419 | - | May 4, 02:19 UTC | May 4, 04:44 UTC | 2h 25m |
| 2026-04-29 | CBJ5896 | - | Apr 29, 04:25 UTC | Apr 29, 14:20 UTC | 9h 56m |
| 2026-04-28 | CBJ5724 | - | Apr 28, 09:05 UTC | Apr 29, 04:39 UTC | 19h 35m |
| 2026-04-27 | CBJ5724 | - | Apr 27, 23:25 UTC | Apr 28, 09:30 UTC | 10h 5m |
| 2026-04-27 | CBJ5724 | - | Apr 27, 11:45 UTC | Apr 28, 09:30 UTC | 21h 45m |
| 2026-04-27 | CBJ5569 | - | Apr 27, 01:20 UTC | Apr 27, 23:40 UTC | 22h 20m |
| 2026-04-26 | CBJ5618 | - | Apr 26, 13:55 UTC | Apr 27, 11:45 UTC | 21h 50m |
| 2026-04-25 | CBJ5618 | - | Apr 25, 09:20 UTC | Apr 26, 01:50 UTC | 16h 30m |
| 2026-04-25 | CBJ5618 | - | Apr 25, 01:45 UTC | Apr 25, 14:25 UTC | 12h 40m |
| 2026-04-24 | CBJ5554 | - | Apr 24, 09:05 UTC | Apr 25, 01:45 UTC | 16h 40m |
| 2026-04-24 | CBJ5554 | - | Apr 24, 06:15 UTC | Apr 24, 06:50 UTC | 35m |
| 2026-04-24 | CBJ5553 | - | Apr 24, 02:20 UTC | Apr 24, 02:45 UTC | 25m |
| 2026-04-23 | CBJ5553 | - | Apr 23, 23:40 UTC | Apr 23, 23:55 UTC | 15m |
| 2026-04-20 | CBJ5388 | - | Apr 20, 02:40 UTC | Apr 20, 11:05 UTC | 8h 25m |
| 2026-04-18 | CBJ326 | - | Apr 18, 12:50 UTC | Apr 18, 13:05 UTC | 15m |
| 2026-04-18 | CBJ325 | - | Apr 18, 11:05 UTC | Apr 18, 11:25 UTC | 20m |
| 2026-04-18 | CBJ5131 | - | Apr 18, 04:05 UTC | Apr 18, 04:20 UTC | 15m |
| 2026-04-17 | CBJ5649 | - | Apr 17, 01:20 UTC | Apr 17, 01:30 UTC | 10m |
| 2026-04-15 | CBJ5036 | - | Apr 15, 02:55 UTC | Apr 15, 03:15 UTC | 20m |
| 2026-04-13 | CBJ5513 | - | Apr 13, 08:45 UTC | Apr 13, 12:05 UTC | 3h 20m |
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-1247 page for operator, model, and routing details .