sensors Mode-S transponder
78137B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1246 · AIRBUS A-320neo
- Hex
- 78137B
- Octal
- 36011573
- Decimal
- 7,869,307
- Country
- CN
- Tail
- B-1246
- Type
- A20N
- Flights observed
- 29
- Distinct callsigns
- 17
- Country
- CN
- Last broadcast
- 5d ago
Last known position
Country allocation
The ICAO 24-bit address 78137B 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 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CBJ619 | - | 5 | 2026-05-28 |
| CBJ5618 | - | 4 | 2026-04-19 |
| CBJ5685 | - | 3 | 2026-05-21 |
| CBJ5617 | - | 2 | 2026-04-18 |
| CBJ5156 | - | 2 | 2026-05-06 |
| CBJ5126 | - | 2 | 2026-04-20 |
| CBJ620 | - | 1 | 2026-05-28 |
| CBJ5896 | - | 1 | 2026-04-21 |
| CBJ5595 | - | 1 | 2026-04-15 |
| CBJ5537 | - | 1 | 2026-04-14 |
| CBJ5291 | - | 1 | 2026-05-02 |
| CBJ5221 | - | 1 | 2026-05-21 |
| CBJ5220 | - | 1 | 2026-05-19 |
| CBJ5219 | - | 1 | 2026-05-19 |
| CBJ5218 | - | 1 | 2026-04-28 |
| CBJ5217 | - | 1 | 2026-04-28 |
| CBJ5112 | - | 1 | 2026-05-03 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | CBJ620 | - | May 28, 08:50 UTC | May 28, 10:40 UTC | 1h 50m |
| 2026-05-28 | CBJ619 | - | May 28, 05:00 UTC | May 28, 07:25 UTC | 2h 25m |
| 2026-05-27 | CBJ619 | - | May 27, 08:50 UTC | May 28, 07:25 UTC | 22h 35m |
| 2026-05-27 | CBJ619 | - | May 27, 04:49 UTC | May 27, 07:20 UTC | 2h 31m |
| 2026-05-26 | CBJ619 | - | May 26, 09:04 UTC | May 27, 07:20 UTC | 22h 16m |
| 2026-05-26 | CBJ619 | - | May 26, 05:15 UTC | May 26, 07:45 UTC | 2h 30m |
| 2026-05-21 | CBJ5221 | - | May 21, 12:25 UTC | May 21, 12:50 UTC | 25m |
| 2026-05-21 | CBJ5685 | - | May 21, 00:00 UTC | May 21, 00:20 UTC | 20m |
| 2026-05-19 | CBJ5220 | - | May 19, 15:30 UTC | May 19, 15:45 UTC | 15m |
| 2026-05-19 | CBJ5219 | - | May 19, 07:30 UTC | May 19, 07:55 UTC | 25m |
| 2026-05-06 | CBJ5156 | - | May 6, 23:50 UTC | May 7, 08:10 UTC | 8h 20m |
| 2026-05-06 | CBJ5156 | - | May 6, 12:01 UTC | May 7, 08:10 UTC | 20h 9m |
| 2026-05-03 | CBJ5112 | - | May 3, 06:45 UTC | May 3, 06:55 UTC | 10m |
| 2026-05-02 | CBJ5291 | - | May 2, 08:35 UTC | May 2, 08:45 UTC | 10m |
| 2026-05-02 | CBJ5685 | - | May 2, 00:00 UTC | May 2, 00:25 UTC | 25m |
| 2026-04-30 | CBJ5685 | - | Apr 30, 00:00 UTC | Apr 30, 00:10 UTC | 10m |
| 2026-04-28 | CBJ5218 | - | Apr 28, 08:20 UTC | Apr 28, 08:35 UTC | 15m |
| 2026-04-28 | CBJ5217 | - | Apr 28, 00:05 UTC | Apr 28, 00:20 UTC | 15m |
| 2026-04-21 | CBJ5896 | - | Apr 21, 04:05 UTC | Apr 21, 14:10 UTC | 10h 5m |
| 2026-04-20 | CBJ5126 | - | Apr 20, 12:35 UTC | Apr 21, 04:30 UTC | 15h 55m |
| 2026-04-20 | CBJ5126 | - | Apr 20, 08:00 UTC | Apr 21, 04:30 UTC | 20h 30m |
| 2026-04-19 | CBJ5618 | - | Apr 19, 13:55 UTC | Apr 20, 12:45 UTC | 22h 50m |
| 2026-04-19 | CBJ5618 | - | Apr 19, 09:55 UTC | Apr 20, 08:00 UTC | 22h 5m |
| 2026-04-18 | CBJ5618 | - | Apr 18, 09:10 UTC | Apr 19, 01:40 UTC | 16h 30m |
| 2026-04-18 | CBJ5617 | - | Apr 18, 01:25 UTC | Apr 18, 01:45 UTC | 20m |
| 2026-04-17 | CBJ5618 | - | Apr 17, 13:25 UTC | Apr 17, 14:30 UTC | 1h 5m |
| 2026-04-17 | CBJ5617 | - | Apr 17, 01:50 UTC | Apr 17, 02:15 UTC | 25m |
| 2026-04-15 | CBJ5595 | - | Apr 15, 03:05 UTC | Apr 15, 03:20 UTC | 15m |
| 2026-04-14 | CBJ5537 | - | Apr 14, 11:10 UTC | Apr 14, 11:30 UTC | 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-1246 page for operator, model, and routing details .