Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781B6A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-323D · AIRBUS A-320neo

Hex
781B6A
Octal
36015552
Decimal
7,871,338
Country
CN
Tail
B-323D
Type
A20N
No current signal · last broadcast 9d ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 781B6A.

Country allocation

The ICAO 24-bit address 781B6A 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
DKH2009 - 7 2026-06-22
DKH1353 - 7 2026-06-11
DKH1576 - 6 2026-06-25
DKH1575 - 5 2026-06-25
DKH1562 - 5 2026-07-01
DKH1564 - 4 2026-07-04
DKH1563 - 4 2026-07-04
DKH1365 Juneyao Airlines 4 2026-06-06
DKH2010 - 3 2026-06-16
DKH1561 - 3 2026-07-01
DKH1354 Juneyao Airlines 3 2026-06-11
DKH1351 Juneyao Airlines 3 2026-06-12
DKH1366 Juneyao Airlines 2 2026-06-06
DKH1307 Juneyao Airlines 2 2026-04-20
DKH1192 Juneyao Airlines 2 2026-06-17
DKH2118 - 1 2026-06-19
DKH2117 - 1 2026-06-19
DKH1902 Juneyao Airlines 1 2026-04-24
DKH1901 Juneyao Airlines 1 2026-04-24
DKH1355 Juneyao Airlines 1 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 DKH1564 - Jul 4, 20:35 UTCJul 5, 00:00 UTC3h 25m
2026-07-04 DKH1563 - Jul 4, 15:55 UTCJul 4, 19:30 UTC3h 35m
2026-07-01 DKH1562 - Jul 1, 20:10 UTCJul 2, 00:20 UTC4h 10m
2026-07-01 DKH1561 - Jul 1, 06:30 UTCJul 1, 18:45 UTC12h 15m
2026-06-28 DKH1271 - Jun 28, 00:50 UTCJun 28, 01:59 UTC1h 10m
2026-06-25 DKH1576 - Jun 25, 16:24 UTCJun 25, 20:30 UTC4h 5m
2026-06-25 DKH1575 - Jun 25, 13:45 UTCJun 25, 13:59 UTC15m
2026-06-25 DKH1575 - Jun 25, 00:40 UTCJun 25, 11:04 UTC10h 25m
2026-06-24 DKH1575 - Jun 24, 13:50 UTCJun 25, 11:04 UTC21h 15m
2026-06-22 DKH2009 - Jun 22, 08:25 UTCJun 22, 11:54 UTC3h 30m
2026-06-19 DKH2117 - Jun 19, 23:09 UTCJun 20, 09:24 UTC10h 15m
2026-06-19 DKH2118 - Jun 19, 16:59 UTCJun 19, 17:09 UTC10m
2026-06-17 DKH1192 CGQ → PVG Jun 17, 20:35 UTCJun 18, 15:40 UTC19h 5m
2026-06-17 DKH1562 - Jun 17, 20:10 UTCJun 18, 15:40 UTC19h 30m
2026-06-17 DKH2009 - Jun 17, 06:20 UTCJun 17, 18:35 UTC12h 15m
2026-06-16 DKH2010 - Jun 16, 11:00 UTCJun 17, 10:25 UTC23h 26m
2026-06-16 DKH2009 - Jun 16, 06:50 UTCJun 16, 11:20 UTC4h 30m
2026-06-15 DKH2009 - Jun 15, 12:45 UTCJun 16, 11:20 UTC22h 35m
2026-06-14 DKH1576 - Jun 14, 19:40 UTCJun 15, 12:45 UTC17h 5m
2026-06-14 DKH1576 - Jun 14, 16:35 UTCJun 15, 12:45 UTC20h 10m
2026-06-14 DKH1576 - Jun 14, 16:25 UTCJun 15, 12:45 UTC20h 20m
2026-06-14 DKH1575 - Jun 14, 09:45 UTCJun 14, 14:00 UTC4h 15m
2026-06-12 DKH1352 BKK → PVG Jun 12, 18:40 UTCJun 12, 20:55 UTC2h 15m
2026-06-12 DKH1351 PVG → BKK Jun 12, 15:30 UTCJun 12, 17:10 UTC1h 40m
2026-06-11 DKH1351 PVG → BKK Jun 11, 20:45 UTCJun 12, 17:10 UTC20h 25m
2026-06-11 DKH1351 PVG → BKK Jun 11, 20:00 UTCJun 12, 17:10 UTC21h 11m
2026-06-11 DKH1354 KUL → PVG Jun 11, 16:50 UTCJun 12, 15:55 UTC23h 6m
2026-06-11 DKH1353 - Jun 11, 14:35 UTCJun 11, 14:50 UTC15m
2026-06-11 DKH1353 - Jun 11, 10:35 UTCJun 11, 11:40 UTC1h 5m
2026-06-06 DKH1355 PVG → DPS Jun 6, 19:04 UTCJun 7, 14:10 UTC19h 5m
2026-06-06 DKH1366 PEN → PVG Jun 6, 15:59 UTCJun 6, 16:10 UTC10m
2026-06-06 DKH1365 PVG → PEN Jun 6, 14:30 UTCJun 6, 14:40 UTC10m
2026-06-06 DKH1365 PVG → PEN Jun 6, 10:25 UTCJun 6, 11:45 UTC1h 20m
2026-06-04 DKH1366 PEN → PVG Jun 4, 16:10 UTCJun 4, 16:20 UTC10m
2026-06-04 DKH1365 PVG → PEN Jun 4, 14:35 UTCJun 4, 14:50 UTC15m
2026-06-04 DKH1365 PVG → PEN Jun 4, 10:30 UTCJun 4, 11:50 UTC1h 20m
2026-06-02 DKH1035 - Jun 2, 10:55 UTCJun 2, 11:10 UTC15m
2026-05-24 DKH1562 SIN → WUX May 24, 23:00 UTCMay 25, 17:20 UTC18h 20m
2026-05-24 DKH1562 SIN → WUX May 24, 19:55 UTCMay 25, 17:20 UTC21h 25m
2026-05-24 DKH1561 WUX → SIN May 24, 06:50 UTCMay 24, 18:05 UTC11h 15m
2026-05-18 DKH2009 WUX → SYX May 18, 06:20 UTCMay 18, 11:40 UTC5h 20m
2026-05-16 DKH1564 KUL → WUX May 16, 20:30 UTCMay 17, 00:35 UTC4h 5m
2026-05-16 DKH1563 WUX → KUL May 16, 06:35 UTCMay 16, 19:00 UTC12h 25m
2026-05-12 DKH1354 KUL → PVG May 12, 16:35 UTCMay 12, 20:45 UTC4h 10m
2026-05-12 DKH1353 PVG → KUL May 12, 10:40 UTCMay 12, 15:05 UTC4h 25m
2026-05-11 DKH1353 PVG → KUL May 11, 14:40 UTCMay 12, 14:30 UTC23h 51m
2026-05-11 DKH1353 PVG → KUL May 11, 14:10 UTCMay 12, 11:50 UTC21h 41m
2026-05-10 DKH1192 CGQ → PVG May 10, 23:15 UTCMay 11, 14:40 UTC15h 25m
2026-05-10 DKH1562 SIN → WUX May 10, 20:09 UTCMay 11, 14:40 UTC18h 30m
2026-05-10 DKH1561 WUX → SIN May 10, 06:25 UTCMay 10, 18:09 UTC11h 45m

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-323D page for operator, model, and routing details .

Mode-S 781B6A frequently asked

What is Mode-S code 781B6A?
781B6A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-323D.
Where is Mode-S 781B6A registered?
Mode-S code 781B6A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781B6A broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781B6A, octal 36015552, decimal 7,871,338.
What flights does 781B6A operate?
Mode-S 781B6A has broadcast 20 distinct callsigns, including DKH2009, DKH1353, DKH1576, DKH1575, DKH1562.