Apparatus

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sensors Mode-S transponder

78924C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-HPG · AIRBUS A-321neo

Hex
78924C
Octal
36111114
Decimal
7,901,772
Country
CN
Tail
B-HPG
Type
A21N
Transponder active on ground
Flights observed
349
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:20 UTC

Last known position

Most recent position reported by Mode-S 78924C.

Country allocation

The ICAO 24-bit address 78924C 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
CPA774 - 14 2026-07-08
CPA729 Cathay Pacific 14 2026-07-26
CPA730 - 12 2026-07-16
CPA717 - 12 2026-07-08
CPA313 - 12 2026-07-01
CPA310 - 12 2026-07-01
CPA563 - 11 2026-06-30
CPA439 Cathay Pacific 11 2026-07-22
CPA305 - 9 2026-07-05
CPA304 - 9 2026-07-04
CPA732 - 8 2026-07-08
CPA706 Cathay Pacific 8 2026-07-23
CPA956 - 7 2026-06-22
CPA955 - 7 2026-06-22
CPA775 Cathay Pacific 7 2026-07-23
CPA733 - 7 2026-07-08
CPA532 - 7 2026-06-29
CPA512 Cathay Pacific 7 2026-07-25
CPA434 Cathay Pacific 7 2026-07-22
CPA917 Cathay Pacific 6 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA729 HKG → KUL Jul 26, 13:40 UTCJul 26, 14:20 UTC40m
2026-07-26 CPA729 HKG → KUL Jul 26, 10:40 UTCJul 26, 10:55 UTC15m
2026-07-25 CPA991 FOC → HKG Jul 25, 15:40 UTCJul 25, 16:10 UTC30m
2026-07-25 CPA990 HKG → FOC Jul 25, 12:05 UTCJul 25, 13:00 UTC55m
2026-07-25 CPA513 FUK → HKG Jul 25, 06:05 UTCJul 25, 09:35 UTC3h 30m
2026-07-25 CPA512 HKG → FUK Jul 25, 03:20 UTCJul 25, 03:45 UTC25m
2026-07-25 CPA512 HKG → FUK Jul 25, 00:45 UTCJul 25, 02:15 UTC1h 30m
2026-07-24 CPA469 TPE → HKG Jul 24, 17:25 UTCJul 24, 18:45 UTC1h 20m
2026-07-24 CPA464 HKG → TPE Jul 24, 15:25 UTCJul 24, 16:10 UTC45m
2026-07-24 CPA464 HKG → TPE Jul 24, 12:00 UTCJul 24, 14:15 UTC2h 15m
2026-07-24 CPA513 FUK → HKG Jul 24, 07:10 UTCJul 24, 08:35 UTC1h 25m
2026-07-24 CPA513 FUK → HKG Jul 24, 05:40 UTCJul 24, 05:55 UTC15m
2026-07-24 CPA512 HKG → FUK Jul 24, 00:35 UTCJul 24, 03:35 UTC3h 0m
2026-07-23 CPA706 BKK → HKG Jul 23, 12:30 UTCJul 23, 12:40 UTC10m
2026-07-23 CPA706 BKK → HKG Jul 23, 10:20 UTCJul 23, 11:55 UTC1h 35m
2026-07-23 CPA775 HKG → BKK Jul 23, 07:15 UTCJul 23, 08:35 UTC1h 20m
2026-07-23 CPA775 HKG → BKK Jul 23, 05:25 UTCJul 23, 05:40 UTC15m
2026-07-23 CPA917 TFU → HKG Jul 23, 02:00 UTCJul 23, 02:30 UTC30m
2026-07-22 CPA916 HKG → TFU Jul 22, 11:40 UTCJul 22, 11:55 UTC15m
2026-07-22 CPA439 ICN → HKG Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 CPA434 HKG → ICN Jul 22, 00:10 UTCJul 22, 03:20 UTC3h 10m
2026-07-21 CPA931 WUH → HKG Jul 21, 14:25 UTCJul 21, 15:00 UTC35m
2026-07-21 CPA938 - Jul 21, 09:55 UTCJul 21, 10:15 UTC20m
2026-07-21 CPA439 ICN → HKG Jul 21, 05:10 UTCJul 21, 08:15 UTC3h 5m
2026-07-21 CPA434 HKG → ICN Jul 21, 00:10 UTCJul 21, 03:25 UTC3h 15m
2026-07-20 CPA962 HKG → HKG Jul 20, 08:30 UTCJul 20, 14:00 UTC5h 30m
2026-07-20 CPA513D FUK → HKG Jul 20, 03:10 UTCJul 20, 06:00 UTC2h 50m
2026-07-18 CPA512 - Jul 18, 00:50 UTCJul 18, 03:40 UTC2h 51m
2026-07-17 CPA307 - Jul 17, 13:25 UTCJul 17, 14:10 UTC45m
2026-07-17 CPA396 - Jul 17, 09:40 UTCJul 17, 10:35 UTC55m
2026-07-17 CPA309 HKG → HKG Jul 17, 01:55 UTCJul 17, 06:15 UTC4h 20m
2026-07-16 CPA569 KIX → HKG Jul 16, 11:30 UTCJul 16, 14:50 UTC3h 20m
2026-07-16 CPA598 HKG → KIX Jul 16, 06:15 UTCJul 16, 10:00 UTC3h 45m
2026-07-16 CPA730 - Jul 16, 03:35 UTCJul 16, 04:00 UTC25m
2026-07-16 CPA730 - Jul 16, 00:20 UTCJul 16, 00:45 UTC25m
2026-07-15 CPA729 - Jul 15, 13:05 UTCJul 15, 13:50 UTC45m
2026-07-15 CPA729 - Jul 15, 10:15 UTCJul 15, 10:30 UTC15m
2026-07-15 CPA740 - Jul 15, 06:20 UTCJul 15, 06:40 UTC20m
2026-07-15 CPA740 - Jul 15, 05:35 UTCJul 15, 05:45 UTC10m
2026-07-15 CPA740 - Jul 15, 04:30 UTCJul 15, 04:40 UTC10m
2026-07-15 CPA741 - Jul 15, 02:05 UTCJul 15, 02:20 UTC15m
2026-07-15 CPA741 - Jul 15, 01:10 UTCJul 15, 01:20 UTC10m
2026-07-14 CPA307 - Jul 14, 13:30 UTCJul 14, 14:15 UTC45m
2026-07-14 CPA396 - Jul 14, 09:50 UTCJul 14, 10:05 UTC15m
2026-07-14 CPA513 - Jul 14, 05:10 UTCJul 14, 08:05 UTC2h 55m
2026-07-14 CPA512 - Jul 14, 03:15 UTCJul 14, 03:25 UTC10m
2026-07-14 CPA512 - Jul 14, 00:45 UTCJul 14, 02:15 UTC1h 30m
2026-07-13 CPA469 TPE → HKG Jul 13, 14:30 UTCJul 13, 15:55 UTC1h 25m
2026-07-13 CPA464 - Jul 13, 11:50 UTCJul 13, 13:10 UTC1h 20m
2026-07-13 CPA439 - Jul 13, 04:55 UTCJul 13, 08:01 UTC3h 5m

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

Mode-S 78924C frequently asked

What is Mode-S code 78924C?
78924C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HPG.
Where is Mode-S 78924C registered?
Mode-S code 78924C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78924C broadcasting right now?
Mode-S 78924C is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78924C, octal 36111114, decimal 7,901,772.
What flights does 78924C operate?
Mode-S 78924C has broadcast 20 distinct callsigns, including CPA774, CPA729, CPA730, CPA717, CPA313.