Apparatus

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sensors Mode-S transponder

78929D

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LPY · AIRBUS A-320

Hex
78929D
Octal
36111235
Decimal
7,901,853
Country
CN
Tail
B-LPY
Type
A320
Broadcasting now · 32,125 ft
Flights observed
403
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:10 UTC

Current position

78929D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 78929D 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
CRK236 Hong Kong Airlines 65 2026-07-26
CRK237 Hong Kong Airlines 56 2026-07-26
CRK337 Hong Kong Airlines 27 2026-07-26
CRK336 Hong Kong Airlines 27 2026-07-26
CRK261 - 27 2026-06-30
CRK260 - 15 2026-06-30
CRK631 Hong Kong Airlines 11 2026-07-22
CRK630 Hong Kong Airlines 11 2026-07-22
CRK605 Hong Kong Airlines 11 2026-07-21
CRK768 Hong Kong Airlines 8 2026-06-05
CRK767 Hong Kong Airlines 8 2026-06-05
CRK604 Hong Kong Airlines 8 2026-07-21
CRK547 - 8 2026-06-27
CRK546 - 8 2026-06-27
CRK305 Hong Kong Airlines 8 2026-07-22
CRK217 - 8 2026-06-24
CRK304 - 7 2026-07-21
CRK741 Hong Kong Airlines 6 2026-05-06
CRK452 - 6 2026-07-18
CRK619 Hong Kong Airlines 5 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CRK337 PEK → HKG Jul 26, 18:55 UTCJul 26, 19:10 UTC15m
2026-07-26 CRK336 HKG → PEK Jul 26, 14:30 UTCJul 26, 14:50 UTC20m
2026-07-26 CRK237 PVG → HKG Jul 26, 12:25 UTCJul 26, 12:35 UTC10m
2026-07-26 CRK236 HKG → PVG Jul 26, 06:20 UTCJul 26, 11:45 UTC5h 26m
2026-07-25 CRK337 PEK → HKG Jul 25, 14:05 UTCJul 25, 17:10 UTC3h 5m
2026-07-25 CRK336 HKG → PEK Jul 25, 09:35 UTCJul 25, 09:45 UTC10m
2026-07-25 CRK236 HKG → PVG Jul 25, 00:25 UTCJul 25, 06:30 UTC6h 5m
2026-07-24 CRK337 PEK → HKG Jul 24, 13:15 UTCJul 24, 16:20 UTC3h 5m
2026-07-24 CRK336 HKG → PEK Jul 24, 08:40 UTCJul 24, 11:10 UTC2h 30m
2026-07-24 CRK237 PVG → HKG Jul 24, 00:30 UTCJul 24, 06:30 UTC6h 0m
2026-07-23 CRK337 PEK → HKG Jul 23, 13:40 UTCJul 23, 16:40 UTC3h 0m
2026-07-23 CRK336 HKG → PEK Jul 23, 11:10 UTCJul 23, 11:20 UTC10m
2026-07-23 CRK336 HKG → PEK Jul 23, 08:35 UTCJul 23, 08:55 UTC20m
2026-07-23 CRK236 HKG → HKG Jul 23, 00:25 UTCJul 23, 06:35 UTC6h 10m
2026-07-22 CRK631 NRT → HKG Jul 22, 12:20 UTCJul 22, 16:30 UTC4h 10m
2026-07-22 CRK630 HKG → NRT Jul 22, 11:15 UTCJul 22, 11:25 UTC10m
2026-07-22 CRK305 PEK → HKG Jul 22, 01:50 UTCJul 22, 05:00 UTC3h 10m
2026-07-21 CRK304 - Jul 21, 13:05 UTCJul 21, 13:25 UTC20m
2026-07-21 CRK605 NRT → HKG Jul 21, 07:05 UTCJul 21, 11:10 UTC4h 5m
2026-07-21 CRK604 HKG → NRT Jul 21, 01:20 UTCJul 21, 05:35 UTC4h 15m
2026-07-20 CRK337 PEK → HKG Jul 20, 14:40 UTCJul 20, 17:55 UTC3h 15m
2026-07-20 CRK336 HKG → PEK Jul 20, 11:25 UTCJul 20, 11:35 UTC10m
2026-07-20 CRK336 HKG → PEK Jul 20, 08:45 UTCJul 20, 09:10 UTC25m
2026-07-20 CRK236 - Jul 20, 01:05 UTCJul 20, 06:55 UTC5h 50m
2026-07-19 CRK337 PEK → HKG Jul 19, 13:55 UTCJul 19, 17:00 UTC3h 5m
2026-07-19 CRK336 HKG → PEK Jul 19, 11:30 UTCJul 19, 11:45 UTC15m
2026-07-19 CRK336 HKG → PEK Jul 19, 08:50 UTCJul 19, 09:20 UTC30m
2026-07-19 CRK236 HKG → HKG Jul 19, 00:25 UTCJul 19, 06:35 UTC6h 10m
2026-07-18 CRK453 - Jul 18, 15:00 UTCJul 18, 15:30 UTC30m
2026-07-18 CRK452 - Jul 18, 09:10 UTCJul 18, 09:30 UTC20m
2026-07-18 CRK679 - Jul 18, 06:15 UTCJul 18, 07:35 UTC1h 20m
2026-07-18 CRK676 - Jul 18, 04:05 UTCJul 18, 04:15 UTC10m
2026-07-18 CRK676 - Jul 18, 01:54 UTCJul 18, 03:20 UTC1h 26m
2026-07-17 CRK337 - Jul 17, 13:29 UTCJul 17, 16:29 UTC3h 0m
2026-07-17 CRK336 HKG → PEK Jul 17, 11:25 UTCJul 17, 11:35 UTC10m
2026-07-17 CRK336 HKG → PEK Jul 17, 08:49 UTCJul 17, 09:10 UTC20m
2026-07-17 CRK236 HKG → HKG Jul 17, 00:25 UTCJul 17, 06:29 UTC6h 5m
2026-07-16 CRK337 - Jul 16, 13:30 UTCJul 16, 16:25 UTC2h 55m
2026-07-16 CRK336 - Jul 16, 09:10 UTCJul 16, 09:30 UTC20m
2026-07-16 CRK237 - Jul 16, 07:30 UTCJul 16, 07:45 UTC15m
2026-07-16 CRK236 - Jul 16, 01:05 UTCJul 16, 06:50 UTC5h 45m
2026-07-15 CRK337 - Jul 15, 14:40 UTCJul 15, 17:30 UTC2h 50m
2026-07-15 CRK336 - Jul 15, 12:05 UTCJul 15, 12:20 UTC15m
2026-07-15 CRK336 - Jul 15, 09:30 UTCJul 15, 09:50 UTC20m
2026-07-15 CRK237 - Jul 15, 06:30 UTCJul 15, 06:50 UTC20m
2026-07-15 CRK236 - Jul 15, 00:40 UTCJul 15, 05:50 UTC5h 10m
2026-07-14 CRK453 - Jul 14, 15:05 UTCJul 14, 15:40 UTC35m
2026-07-14 CRK452 - Jul 14, 09:30 UTCJul 14, 09:45 UTC15m
2026-07-14 CRK679 - Jul 14, 05:10 UTCJul 14, 07:05 UTC1h 55m
2026-07-14 CRK676 - Jul 14, 01:15 UTCJul 14, 02:50 UTC1h 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-LPY page for operator, model, and routing details .

Mode-S 78929D frequently asked

What is Mode-S code 78929D?
78929D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LPY.
Where is Mode-S 78929D registered?
Mode-S code 78929D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78929D broadcasting right now?
Yes. Mode-S 78929D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78929D, octal 36111235, decimal 7,901,853.
What flights does 78929D operate?
Mode-S 78929D has broadcast 20 distinct callsigns, including CRK236, CRK237, CRK337, CRK336, CRK261.