Apparatus

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sensors Mode-S transponder

780A6B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LPK · AIRBUS A-320

Hex
780A6B
Octal
36005153
Decimal
7,866,987
Country
CN
Tail
B-LPK
Type
A320
Broadcasting now · callsign CRK304 · 10,725 ft
Flights observed
269
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:50 UTC

Current position

780A6B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780A6B 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
CRK630 Hong Kong Airlines 52 2026-07-26
CRK604 Hong Kong Airlines 37 2026-07-25
CRK631 Hong Kong Airlines 36 2026-07-26
CRK605 Hong Kong Airlines 32 2026-07-25
CRK305 Hong Kong Airlines 27 2026-07-26
CRK615 - 20 2026-07-17
CRK304 Hong Kong Airlines 14 2026-07-25
CRK614 - 9 2026-07-17
CRK546 Hong Kong Airlines 4 2026-07-22
CRK771 Hong Kong Airlines 3 2026-05-05
CRK619 Hong Kong Airlines 3 2026-04-25
CRK618 Hong Kong Airlines 3 2026-04-25
CRK547 Hong Kong Airlines 3 2026-06-07
CRK237 - 3 2026-07-02
CRK767 Hong Kong Airlines 2 2026-04-17
CRK741 Hong Kong Airlines 2 2026-05-01
CRK633 Hong Kong Airlines 2 2026-04-20
CRK261 Hong Kong Airlines 2 2026-04-17
CRK260 Hong Kong Airlines 2 2026-04-17
CRK253 Hong Kong Airlines 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CRK631 NRT → HKG Jul 26, 13:25 UTCJul 26, 16:50 UTC3h 25m
2026-07-26 CRK630 HKG → NRT Jul 26, 06:40 UTCJul 26, 10:55 UTC4h 15m
2026-07-26 CRK305 PEK → HKG Jul 26, 04:25 UTCJul 26, 05:20 UTC55m
2026-07-26 CRK305 PEK → HKG Jul 26, 01:45 UTCJul 26, 02:05 UTC20m
2026-07-25 CRK304 HKG → PEK Jul 25, 13:15 UTCJul 25, 13:30 UTC15m
2026-07-25 CRK605 NRT → HKG Jul 25, 06:40 UTCJul 25, 10:05 UTC3h 25m
2026-07-25 CRK604 HKG → NRT Jul 25, 00:50 UTCJul 25, 05:00 UTC4h 10m
2026-07-24 CRK631 NRT → HKG Jul 24, 12:15 UTCJul 24, 15:45 UTC3h 30m
2026-07-24 CRK630 HKG → NRT Jul 24, 06:35 UTCJul 24, 10:40 UTC4h 5m
2026-07-23 CRK304 HKG → PEK Jul 23, 13:25 UTCJul 23, 13:40 UTC15m
2026-07-23 CRK605 NRT → HKG Jul 23, 06:30 UTCJul 23, 09:50 UTC3h 20m
2026-07-23 CRK604 HKG → NRT Jul 23, 00:50 UTCJul 23, 05:00 UTC4h 10m
2026-07-22 CRK546 HKG → DAD Jul 22, 11:15 UTCJul 22, 11:30 UTC15m
2026-07-21 CRK631 NRT → HKG Jul 21, 12:15 UTCJul 22, 03:50 UTC15h 35m
2026-07-21 CRK630 HKG → NRT Jul 21, 06:45 UTCJul 21, 10:50 UTC4h 5m
2026-07-21 CRK305 PEK → HKG Jul 21, 01:35 UTCJul 21, 04:45 UTC3h 10m
2026-07-20 CRK304 - Jul 20, 13:10 UTCJul 20, 13:25 UTC15m
2026-07-20 CRK605 NRT → HKG Jul 20, 07:20 UTCJul 20, 10:50 UTC3h 30m
2026-07-20 CRK604 HKG → NRT Jul 20, 01:55 UTCJul 20, 05:55 UTC4h 0m
2026-07-19 CRK631 - Jul 19, 12:10 UTCJul 19, 15:35 UTC3h 25m
2026-07-19 CRK630 HKG → NRT Jul 19, 06:45 UTCJul 19, 10:50 UTC4h 5m
2026-07-19 CRK305 PEK → HKG Jul 19, 02:05 UTCJul 19, 05:10 UTC3h 5m
2026-07-18 CRK605 NRT → HKG Jul 18, 06:40 UTCJul 18, 10:00 UTC3h 20m
2026-07-18 CRK604 HKG → NRT Jul 18, 00:55 UTCJul 18, 05:15 UTC4h 21m
2026-07-17 CRK546 - Jul 17, 12:30 UTCJul 17, 12:45 UTC15m
2026-07-17 CRK615 - Jul 17, 09:35 UTCJul 17, 09:40 UTC5m
2026-07-17 CRK615 - Jul 17, 06:05 UTCJul 17, 08:59 UTC2h 55m
2026-07-17 CRK614 - Jul 17, 01:35 UTCJul 17, 03:59 UTC2h 25m
2026-07-16 CRK631 - Jul 16, 14:20 UTCJul 16, 17:35 UTC3h 15m
2026-07-16 CRK630 HKG → NRT Jul 16, 07:10 UTCJul 16, 11:30 UTC4h 20m
2026-07-16 CRK305 - Jul 16, 04:25 UTCJul 16, 05:10 UTC45m
2026-07-16 CRK305 - Jul 16, 01:45 UTCJul 16, 02:05 UTC20m
2026-07-15 CRK605 - Jul 15, 06:40 UTCJul 15, 10:00 UTC3h 20m
2026-07-15 CRK604 HKG → NRT Jul 15, 00:55 UTCJul 15, 05:15 UTC4h 20m
2026-07-14 CRK631 - Jul 14, 12:30 UTCJul 14, 15:50 UTC3h 20m
2026-07-14 CRK630 HKG → NRT Jul 14, 06:35 UTCJul 14, 10:55 UTC4h 20m
2026-07-13 CRK304 - Jul 13, 13:15 UTCJul 13, 13:30 UTC15m
2026-07-13 CRK605 - Jul 13, 06:35 UTCJul 13, 10:00 UTC3h 25m
2026-07-13 CRK604 - Jul 13, 00:45 UTCJul 13, 04:55 UTC4h 10m
2026-07-12 CRK631 - Jul 12, 12:20 UTCJul 12, 15:40 UTC3h 20m
2026-07-12 CRK630 HKG → NRT Jul 12, 06:35 UTCJul 12, 10:55 UTC4h 20m
2026-07-11 CRK605 - Jul 11, 11:30 UTCJul 11, 11:40 UTC10m
2026-07-11 CRK605 - Jul 11, 07:30 UTCJul 11, 08:05 UTC35m
2026-07-11 CRK604 - Jul 11, 04:01 UTCJul 11, 05:55 UTC1h 55m
2026-07-11 CRK604 - Jul 11, 01:30 UTCJul 11, 01:50 UTC20m
2026-07-10 CRK631 - Jul 10, 12:15 UTCJul 10, 15:40 UTC3h 25m
2026-07-10 CRK630 HKG → NRT Jul 10, 06:35 UTCJul 10, 10:45 UTC4h 10m
2026-07-10 CRK305 - Jul 10, 04:40 UTCJul 10, 05:10 UTC30m
2026-07-10 CRK305 - Jul 10, 02:15 UTCJul 10, 02:35 UTC20m
2026-07-09 CRK304 - Jul 9, 13:20 UTCJul 9, 13:35 UTC15m

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

Mode-S 780A6B frequently asked

What is Mode-S code 780A6B?
780A6B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LPK.
Where is Mode-S 780A6B registered?
Mode-S code 780A6B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A6B broadcasting right now?
Yes. Mode-S 780A6B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A6B, octal 36005153, decimal 7,866,987.
What flights does 780A6B operate?
Mode-S 780A6B has broadcast 20 distinct callsigns, including CRK630, CRK604, CRK631, CRK605, CRK305.