Apparatus

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sensors Mode-S transponder

780A6A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LPJ · AIRBUS A-320

Hex
780A6A
Octal
36005152
Decimal
7,866,986
Country
CN
Tail
B-LPJ
Type
A320
Broadcasting now · callsign CRK615 · 2,375 ft
Flights observed
404
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 11:50 UTC

Current position

780A6A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780A6A 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
CRK605 - 47 2026-07-17
CRK604 Hong Kong Airlines 42 2026-07-17
CRK630 Hong Kong Airlines 41 2026-07-18
CRK615 Hong Kong Airlines 40 2026-07-26
CRK631 - 38 2026-07-18
CRK614 Hong Kong Airlines 35 2026-07-26
CRK305 Hong Kong Airlines 31 2026-07-18
CRK304 - 30 2026-07-17
CRK546 Hong Kong Airlines 20 2026-07-25
CRK547 Hong Kong Airlines 14 2026-07-25
CRK772 Hong Kong Airlines 6 2026-05-06
CRK771 Hong Kong Airlines 6 2026-05-06
CRK659 Hong Kong Airlines 4 2026-04-27
CRK236 - 4 2026-07-22
CRK627 Hong Kong Airlines 3 2026-04-17
CRK619 Hong Kong Airlines 3 2026-06-06
CRK618 Hong Kong Airlines 3 2026-06-06
CRK337 Hong Kong Airlines 3 2026-07-22
CRK768 Hong Kong Airlines 2 2026-05-07
CRK659D - 2 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CRK615 KIX → HKG Jul 26, 11:20 UTCJul 26, 11:35 UTC15m
2026-07-26 CRK615 KIX → HKG Jul 26, 08:00 UTCJul 26, 10:45 UTC2h 45m
2026-07-26 CRK614 HKG → KIX Jul 26, 02:45 UTCJul 26, 06:10 UTC3h 25m
2026-07-25 CRK547 DAD → HKG Jul 25, 16:00 UTCJul 25, 16:20 UTC20m
2026-07-25 CRK546 HKG → DAD Jul 25, 12:00 UTCJul 25, 12:15 UTC15m
2026-07-25 CRK615 KIX → HKG Jul 25, 05:55 UTCJul 25, 09:55 UTC4h 0m
2026-07-25 CRK614 HKG → KIX Jul 25, 00:40 UTCJul 25, 04:20 UTC3h 40m
2026-07-24 CRK547 DAD → HKG Jul 24, 15:15 UTCJul 24, 15:35 UTC20m
2026-07-24 CRK546 HKG → DAD Jul 24, 11:10 UTCJul 24, 11:25 UTC15m
2026-07-24 CRK615 KIX → HKG Jul 24, 05:50 UTCJul 24, 09:20 UTC3h 30m
2026-07-24 CRK614 HKG → KIX Jul 24, 00:40 UTCJul 24, 04:10 UTC3h 30m
2026-07-23 CRK546 HKG → DAD Jul 23, 11:10 UTCJul 23, 11:20 UTC10m
2026-07-23 CRK615 KIX → HKG Jul 23, 05:50 UTCJul 23, 09:15 UTC3h 25m
2026-07-23 CRK614 HKG → KIX Jul 23, 01:05 UTCJul 23, 04:35 UTC3h 30m
2026-07-22 CRK337 PEK → HKG Jul 22, 17:50 UTCJul 22, 18:10 UTC20m
2026-07-22 CRK337 PEK → HKG Jul 22, 14:50 UTCJul 22, 15:30 UTC40m
2026-07-22 CRK236 - Jul 22, 00:35 UTCJul 22, 12:15 UTC11h 40m
2026-07-21 CRK337 PEK → HKG Jul 21, 13:55 UTCJul 21, 17:00 UTC3h 5m
2026-07-21 CRK336 HKG → PEK Jul 21, 11:25 UTCJul 21, 11:35 UTC10m
2026-07-21 CRK336 HKG → PEK Jul 21, 08:45 UTCJul 21, 09:00 UTC15m
2026-07-21 CRK236 HKG → HKG Jul 21, 00:30 UTCJul 21, 06:30 UTC6h 0m
2026-07-20 CRK547 DAD → HKG Jul 20, 15:40 UTCJul 20, 16:00 UTC20m
2026-07-20 CRK546 HKG → DAD Jul 20, 11:45 UTCJul 20, 12:05 UTC20m
2026-07-20 CRK615 KIX → HKG Jul 20, 06:50 UTCJul 20, 10:15 UTC3h 25m
2026-07-20 CRK614 HKG → KIX Jul 20, 02:00 UTCJul 20, 05:25 UTC3h 25m
2026-07-19 CRK547 - Jul 19, 15:15 UTCJul 19, 15:30 UTC15m
2026-07-19 CRK546 HKG → DAD Jul 19, 11:10 UTCJul 19, 11:25 UTC15m
2026-07-19 CRK615 KIX → HKG Jul 19, 05:45 UTCJul 19, 09:15 UTC3h 30m
2026-07-19 CRK614 HKG → KIX Jul 19, 00:45 UTCJul 19, 04:20 UTC3h 35m
2026-07-18 CRK631 - Jul 18, 12:15 UTCJul 18, 16:10 UTC3h 55m
2026-07-18 CRK630 HKG → NRT Jul 18, 06:35 UTCJul 18, 10:55 UTC4h 20m
2026-07-18 CRK305 PEK → HKG Jul 18, 01:45 UTCJul 18, 04:55 UTC3h 11m
2026-07-17 CRK304 - Jul 17, 12:45 UTCJul 17, 13:05 UTC20m
2026-07-17 CRK605 - Jul 17, 06:50 UTCJul 17, 10:44 UTC3h 55m
2026-07-17 CRK604 HKG → NRT Jul 17, 01:09 UTCJul 17, 05:20 UTC4h 10m
2026-07-16 CRK547 - Jul 16, 15:30 UTCJul 16, 15:49 UTC20m
2026-07-16 CRK546 - Jul 16, 11:15 UTCJul 16, 11:25 UTC10m
2026-07-16 CRK615 KIX → HKG Jul 16, 06:20 UTCJul 16, 09:40 UTC3h 20m
2026-07-16 CRK614 HKG → KIX Jul 16, 01:20 UTCJul 16, 05:05 UTC3h 45m
2026-07-15 CRK631 - Jul 15, 12:45 UTCJul 15, 17:05 UTC4h 20m
2026-07-15 CRK630 HKG → NRT Jul 15, 07:10 UTCJul 15, 11:25 UTC4h 15m
2026-07-15 CRK305 - Jul 15, 04:05 UTCJul 15, 04:50 UTC45m
2026-07-15 CRK305 - Jul 15, 01:35 UTCJul 15, 02:00 UTC25m
2026-07-14 CRK304 - Jul 14, 13:00 UTCJul 14, 13:20 UTC20m
2026-07-14 CRK605 - Jul 14, 06:35 UTCJul 14, 10:30 UTC3h 55m
2026-07-14 CRK604 HKG → NRT Jul 14, 00:50 UTCJul 14, 05:10 UTC4h 20m
2026-07-13 - - Jul 13, 15:25 UTCJul 13, 15:35 UTC10m
2026-07-13 CRK546 - Jul 13, 11:10 UTCJul 13, 11:25 UTC15m
2026-07-13 CRK615 - Jul 13, 06:05 UTCJul 13, 09:30 UTC3h 25m
2026-07-13 CRK614 HKG → KIX Jul 13, 00:35 UTCJul 13, 04:10 UTC3h 35m

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-LPJ page for operator, model, and routing details .

Mode-S 780A6A frequently asked

What is Mode-S code 780A6A?
780A6A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LPJ.
Where is Mode-S 780A6A registered?
Mode-S code 780A6A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A6A broadcasting right now?
Yes. Mode-S 780A6A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A6A, octal 36005152, decimal 7,866,986.
What flights does 780A6A operate?
Mode-S 780A6A has broadcast 20 distinct callsigns, including CRK605, CRK604, CRK630, CRK615, CRK631.