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
No current signal · last broadcast 8d ago
Flights observed
87
Distinct callsigns
13
Country
CN
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 78137A.

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

DateFlightRouteTakeoffLandingDuration
2026-07-09 CBJ5649 - Jul 9, 01:30 UTCJul 9, 01:45 UTC15m
2026-07-01 CBJ5148 - Jul 1, 12:20 UTCJul 1, 12:30 UTC10m
2026-06-30 CBJ5083 - Jun 30, 08:30 UTCJun 30, 09:00 UTC30m
2026-06-25 CBJ5949 - Jun 25, 07:05 UTCJun 25, 07:45 UTC40m
2026-06-24 CBJ420 - Jun 24, 06:10 UTCJun 24, 08:24 UTC2h 15m
2026-06-24 CBJ419 - Jun 24, 02:15 UTCJun 24, 04:20 UTC2h 5m
2026-06-22 CBJ620 - Jun 22, 08:44 UTCJun 22, 11:00 UTC2h 15m
2026-06-22 CBJ619 - Jun 22, 04:59 UTCJun 22, 07:10 UTC2h 10m
2026-06-21 CBJ619 - Jun 21, 10:34 UTCJun 22, 07:10 UTC20h 35m
2026-06-21 CBJ620 - Jun 21, 08:49 UTCJun 22, 07:10 UTC22h 20m
2026-06-21 CBJ619 - Jun 21, 04:44 UTCJun 21, 07:00 UTC2h 15m
2026-06-20 CBJ620 - Jun 20, 08:34 UTCJun 21, 07:00 UTC22h 25m
2026-06-20 CBJ619 - Jun 20, 04:54 UTCJun 20, 07:00 UTC2h 5m
2026-06-19 CBJ619 - Jun 19, 10:35 UTCJun 20, 07:00 UTC20h 25m
2026-06-19 CBJ620 - Jun 19, 08:59 UTCJun 20, 07:00 UTC22h 0m
2026-06-19 CBJ619 - Jun 19, 04:54 UTCJun 19, 07:09 UTC2h 15m
2026-06-18 CBJ619 - Jun 18, 10:35 UTCJun 19, 07:09 UTC20h 34m
2026-06-18 CBJ620 - Jun 18, 08:55 UTCJun 19, 07:09 UTC22h 14m
2026-06-18 CBJ619 - Jun 18, 05:25 UTCJun 18, 07:05 UTC1h 40m
2026-06-17 CBJ620 - Jun 17, 08:35 UTCJun 18, 07:05 UTC22h 30m
2026-06-17 CBJ619 - Jun 17, 05:30 UTCJun 17, 07:10 UTC1h 40m
2026-06-15 CBJ620 - Jun 15, 08:45 UTCJun 16, 01:30 UTC16h 45m
2026-06-15 CBJ619 - Jun 15, 05:00 UTCJun 15, 07:15 UTC2h 15m
2026-06-14 CBJ619 - Jun 14, 10:35 UTCJun 15, 07:15 UTC20h 39m
2026-06-14 CBJ620 - Jun 14, 08:55 UTCJun 15, 07:15 UTC22h 19m
2026-06-14 CBJ619 - Jun 14, 04:55 UTCJun 14, 07:05 UTC2h 10m
2026-06-13 CBJ620 BKK → BKK Jun 13, 08:35 UTCJun 14, 07:05 UTC22h 30m
2026-06-13 CBJ619 - Jun 13, 04:55 UTCJun 13, 07:10 UTC2h 15m
2026-06-12 CBJ619 - Jun 12, 08:45 UTCJun 13, 07:10 UTC22h 24m
2026-06-12 CBJ619 - Jun 12, 04:55 UTCJun 12, 07:10 UTC2h 15m
2026-06-11 CBJ620 - Jun 11, 08:50 UTCJun 12, 07:10 UTC22h 21m
2026-06-11 CBJ619 - Jun 11, 04:50 UTCJun 11, 07:10 UTC2h 20m
2026-06-10 CBJ620 - Jun 10, 08:45 UTCJun 11, 07:10 UTC22h 25m
2026-06-10 CBJ619 - Jun 10, 07:05 UTCJun 10, 07:30 UTC25m
2026-06-10 CBJ619 - Jun 10, 05:15 UTCJun 10, 05:55 UTC40m
2026-06-09 CBJ620 - Jun 9, 09:00 UTCJun 10, 05:55 UTC20h 55m
2026-06-09 CBJ619 - Jun 9, 04:55 UTCJun 9, 07:15 UTC2h 20m
2026-06-08 CBJ619 - Jun 8, 10:35 UTCJun 9, 07:15 UTC20h 40m
2026-06-08 CBJ620 - Jun 8, 09:00 UTCJun 9, 07:15 UTC22h 15m
2026-06-08 CBJ619 - Jun 8, 05:30 UTCJun 8, 07:30 UTC2h 0m
2026-06-07 CBJ619 - Jun 7, 10:45 UTCJun 8, 07:30 UTC20h 45m
2026-06-07 CBJ619 - Jun 7, 08:40 UTCJun 8, 07:30 UTC22h 50m
2026-06-07 CBJ619 - Jun 7, 04:45 UTCJun 7, 07:10 UTC2h 25m
2026-06-05 CBJ5131 - Jun 5, 10:35 UTCJun 6, 05:05 UTC18h 30m
2026-06-05 CBJ620 - Jun 5, 08:50 UTCJun 6, 05:05 UTC20h 15m
2026-06-05 CBJ619 - Jun 5, 05:10 UTCJun 5, 07:25 UTC2h 15m
2026-06-04 CBJ619 - Jun 4, 10:35 UTCJun 5, 07:25 UTC20h 50m
2026-06-04 CBJ620 - Jun 4, 08:50 UTCJun 5, 05:25 UTC20h 35m
2026-06-04 CBJ619 - Jun 4, 05:05 UTCJun 4, 07:40 UTC2h 35m
2026-06-03 CBJ619 - Jun 3, 10:35 UTCJun 4, 07:40 UTC21h 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 .

Mode-S 78137A frequently asked

What is Mode-S code 78137A?
78137A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1245.
Where is Mode-S 78137A registered?
Mode-S code 78137A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78137A broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78137A, octal 36011572, decimal 7,869,306.
What flights does 78137A operate?
Mode-S 78137A has broadcast 13 distinct callsigns, including CBJ619, CBJ620, CBJ5131, CBJ5649, CBJ420.