Apparatus

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sensors Mode-S transponder

78929C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LHR · AIRBUS A-330-300

Hex
78929C
Octal
36111234
Decimal
7,901,852
Country
CN
Tail
B-LHR
Type
A333
No current signal · last broadcast Jul 26, 17:35 UTC
Flights observed
247
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 17:35 UTC

Last known position

Most recent position reported by Mode-S 78929C.

Country allocation

The ICAO 24-bit address 78929C 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
CRK609 Hong Kong Airlines 38 2026-07-21
CRK018 Hong Kong Airlines 36 2026-07-26
CRK608 Hong Kong Airlines 31 2026-07-21
CRK036 Hong Kong Airlines 29 2026-07-25
CRK017 Hong Kong Airlines 28 2026-07-26
CRK081 Hong Kong Airlines 18 2026-07-18
CRK080 Hong Kong Airlines 18 2026-07-17
CRK035 Hong Kong Airlines 18 2026-07-24
CRK619 - 6 2026-06-28
CRK791 Hong Kong Airlines 4 2026-07-20
CRK641 Hong Kong Airlines 4 2026-05-03
CRK618 - 4 2026-06-28
CRK792 Hong Kong Airlines 2 2026-07-20
CRK640 Hong Kong Airlines 2 2026-05-03
CRK238 - 2 2026-07-07
CRK8309 - 1 2026-06-03
CRK8306 - 1 2026-06-18
CRK707 - 1 2026-06-30
CRK706 - 1 2026-07-01
CRK253 - 1 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CRK017 HKG → SYD Jul 26, 16:20 UTCJul 26, 17:35 UTC1h 15m
2026-07-26 CRK017 HKG → SYD Jul 26, 15:35 UTCJul 26, 15:45 UTC10m
2026-07-26 CRK018 SYD → HKG Jul 26, 12:55 UTCJul 26, 13:05 UTC10m
2026-07-26 CRK018 SYD → HKG Jul 26, 03:30 UTCJul 26, 12:10 UTC8h 41m
2026-07-25 CRK017 HKG → SYD Jul 25, 17:10 UTCJul 26, 00:45 UTC7h 35m
2026-07-25 CRK017 HKG → SYD Jul 25, 16:05 UTCJul 25, 16:20 UTC15m
2026-07-25 CRK036 MEL → HKG Jul 25, 11:30 UTCJul 25, 11:40 UTC10m
2026-07-25 CRK036 MEL → HKG Jul 25, 02:15 UTCJul 25, 10:20 UTC8h 5m
2026-07-24 CRK035 HKG → MEL Jul 24, 15:20 UTCJul 24, 23:50 UTC8h 30m
2026-07-24 CRK018 SYD → HKG Jul 24, 01:15 UTCJul 24, 10:35 UTC9h 20m
2026-07-23 CRK017 HKG → SYD Jul 23, 14:30 UTCJul 23, 23:05 UTC8h 35m
2026-07-23 CRK036 MEL → HKG Jul 23, 02:25 UTCJul 23, 12:05 UTC9h 40m
2026-07-22 CRK035 HKG → MEL Jul 22, 15:50 UTCJul 23, 00:10 UTC8h 20m
2026-07-22 CRK018 SYD → HKG Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-22 CRK018 SYD → HKG Jul 22, 01:55 UTCJul 22, 10:25 UTC8h 30m
2026-07-21 CRK017 HKG → SYD Jul 21, 14:30 UTCJul 21, 23:10 UTC8h 40m
2026-07-21 CRK609 NRT → HKG Jul 21, 08:00 UTCJul 21, 11:50 UTC3h 50m
2026-07-21 CRK608 HKG → NRT Jul 21, 02:20 UTCJul 21, 06:30 UTC4h 10m
2026-07-20 CRK792 MLE → HKG Jul 20, 22:10 UTCJul 20, 22:25 UTC15m
2026-07-20 CRK791 HKG → MLE Jul 20, 08:50 UTCJul 20, 21:35 UTC12h 45m
2026-07-20 CRK791 HKG → MLE Jul 20, 08:05 UTCJul 20, 08:15 UTC10m
2026-07-19 CRK792 MLE → HKG Jul 19, 22:25 UTCJul 19, 22:40 UTC15m
2026-07-19 CRK791 HKG → MLE Jul 19, 09:30 UTCJul 19, 20:25 UTC10h 55m
2026-07-19 CRK791 HKG → MLE Jul 19, 07:30 UTCJul 19, 07:45 UTC15m
2026-07-18 CRK081 YVR → HKG Jul 18, 08:50 UTCJul 18, 21:40 UTC12h 50m
2026-07-17 CRK080 HKG → YVR Jul 17, 14:55 UTCJul 18, 03:20 UTC12h 26m
2026-07-17 CRK018 - Jul 17, 10:55 UTCJul 17, 11:10 UTC15m
2026-07-17 CRK018 - Jul 17, 02:30 UTCJul 17, 10:00 UTC7h 30m
2026-07-16 CRK017 HKG → SYD Jul 16, 15:14 UTCJul 17, 00:35 UTC9h 20m
2026-07-16 CRK036 - Jul 16, 10:50 UTCJul 16, 11:10 UTC20m
2026-07-16 CRK036 - Jul 16, 02:30 UTCJul 16, 09:50 UTC7h 20m
2026-07-15 CRK035 HKG → MEL Jul 15, 15:25 UTCJul 16, 00:35 UTC9h 10m
2026-07-15 CRK018 SYD → HKG Jul 15, 01:40 UTCJul 15, 10:50 UTC9h 10m
2026-07-14 CRK017 HKG → SYD Jul 14, 14:55 UTCJul 14, 23:50 UTC8h 54m
2026-07-14 CRK036 MEL → HKG Jul 14, 02:15 UTCJul 14, 11:30 UTC9h 15m
2026-07-13 CRK035 - Jul 13, 15:20 UTCJul 14, 00:25 UTC9h 5m
2026-07-13 CRK609 - Jul 13, 07:20 UTCJul 13, 11:10 UTC3h 50m
2026-07-13 CRK608 HKG → NRT Jul 13, 01:35 UTCJul 13, 05:40 UTC4h 5m
2026-07-12 CRK081 YVR → HKG Jul 12, 08:40 UTCJul 12, 21:20 UTC12h 40m
2026-07-11 CRK080 - Jul 11, 15:35 UTCJul 12, 03:05 UTC11h 30m
2026-07-11 CRK080 - Jul 11, 14:50 UTCJul 11, 15:05 UTC15m
2026-07-11 CRK036 - Jul 11, 11:35 UTCJul 11, 12:05 UTC30m
2026-07-11 CRK036 - Jul 11, 02:20 UTCJul 11, 10:50 UTC8h 30m
2026-07-10 CRK035 - Jul 10, 15:15 UTCJul 10, 23:55 UTC8h 41m
2026-07-10 CRK018 SYD → HKG Jul 10, 02:55 UTCJul 10, 12:20 UTC9h 25m
2026-07-09 CRK017 - Jul 9, 14:25 UTCJul 9, 23:35 UTC9h 10m
2026-07-09 CRK609 - Jul 9, 07:25 UTCJul 9, 11:20 UTC3h 55m
2026-07-09 CRK608 HKG → NRT Jul 9, 01:40 UTCJul 9, 05:45 UTC4h 5m
2026-07-08 CRK036 - Jul 8, 12:35 UTCJul 8, 12:50 UTC15m
2026-07-08 CRK036 - Jul 8, 03:00 UTCJul 8, 11:40 UTC8h 40m

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

Mode-S 78929C frequently asked

What is Mode-S code 78929C?
78929C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LHR.
Where is Mode-S 78929C registered?
Mode-S code 78929C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78929C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78929C, octal 36111234, decimal 7,901,852.
What flights does 78929C operate?
Mode-S 78929C has broadcast 20 distinct callsigns, including CRK609, CRK018, CRK608, CRK036, CRK017.