Apparatus

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sensors Mode-S transponder

78924D

ICAO 24-bit transponder address · allocated to China

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

Hex
78924D
Octal
36111115
Decimal
7,901,773
Country
CN
Tail
B-HPH
Type
A21N
Transponder active on ground
Flights observed
375
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 78924D.

Country allocation

The ICAO 24-bit address 78924D 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
CPA730 Cathay Pacific 14 2026-07-23
CPA729 Cathay Pacific 13 2026-07-22
CPA513 Cathay Pacific 13 2026-06-10
CPA423 - 13 2026-07-06
CPA774 Cathay Pacific 12 2026-07-21
CPA569 Cathay Pacific 12 2026-07-23
CPA717 Cathay Pacific 10 2026-07-21
CPA708 - 10 2026-06-20
CPA598 Cathay Pacific 10 2026-07-23
CPA427 Cathay Pacific 9 2026-07-21
CPA424 - 9 2026-07-06
CPA307 - 9 2026-07-07
CPA773 - 8 2026-07-03
CPA751 - 8 2026-06-20
CPA733 Cathay Pacific 8 2026-07-24
CPA732 Cathay Pacific 8 2026-07-24
CPA396 - 8 2026-07-07
CPA313 Cathay Pacific 8 2026-07-24
CPA310 Cathay Pacific 8 2026-07-24
CPA917 Cathay Pacific 7 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA742 RUH → HKG Jul 26, 16:05 UTCJul 26, 16:35 UTC30m
2026-07-26 CPA742 RUH → HKG Jul 26, 15:05 UTCJul 26, 15:30 UTC25m
2026-07-26 CPA743 HKG → BAH Jul 26, 11:25 UTCJul 26, 11:35 UTC10m
2026-07-25 CPA704 BKK → HKG Jul 25, 17:10 UTCJul 25, 17:30 UTC20m
2026-07-25 CPA704 BKK → HKG Jul 25, 15:05 UTCJul 25, 16:35 UTC1h 30m
2026-07-25 CPA701 HKG → BKK Jul 25, 10:20 UTCJul 25, 13:10 UTC2h 50m
2026-07-25 CPA309 CSX → HKG Jul 25, 05:30 UTCJul 25, 06:05 UTC35m
2026-07-25 CPA330 HKG → CSX Jul 25, 01:55 UTCJul 25, 02:10 UTC15m
2026-07-24 CPA732 KUL → HKG Jul 24, 22:50 UTCJul 24, 23:15 UTC25m
2026-07-24 CPA732 KUL → HKG Jul 24, 19:45 UTCJul 24, 20:10 UTC25m
2026-07-24 CPA733 HKG → KUL Jul 24, 17:30 UTCJul 24, 18:00 UTC30m
2026-07-24 CPA733 HKG → KUL Jul 24, 14:40 UTCJul 24, 14:50 UTC10m
2026-07-24 CPA313 HAK → HKG Jul 24, 09:50 UTCJul 24, 10:10 UTC20m
2026-07-24 CPA310 HKG → HAK Jul 24, 06:45 UTCJul 24, 07:00 UTC15m
2026-07-24 CPA906 MNL → HKG Jul 24, 04:50 UTCJul 24, 05:05 UTC15m
2026-07-24 CPA906 MNL → HKG Jul 24, 03:30 UTCJul 24, 03:55 UTC25m
2026-07-23 CPA907 HKG → MNL Jul 23, 23:50 UTCJul 24, 01:40 UTC1h 50m
2026-07-23 CPA569 KIX → HKG Jul 23, 10:50 UTCJul 23, 14:10 UTC3h 20m
2026-07-23 CPA598 HKG → KIX Jul 23, 05:50 UTCJul 23, 09:15 UTC3h 25m
2026-07-23 CPA730 KUL → HKG Jul 23, 03:25 UTCJul 23, 03:45 UTC20m
2026-07-23 CPA730 KUL → HKG Jul 23, 00:15 UTCJul 23, 00:40 UTC25m
2026-07-22 CPA729 HKG → KUL Jul 22, 12:05 UTCJul 22, 12:40 UTC35m
2026-07-22 CPA385 - Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-22 CPA384 - Jul 22, 00:55 UTCJul 22, 01:35 UTC40m
2026-07-21 CPA427 ICN → HKG Jul 21, 17:05 UTCJul 21, 20:10 UTC3h 5m
2026-07-21 CPA426 HKG → ICN Jul 21, 12:15 UTCJul 21, 15:20 UTC3h 5m
2026-07-21 CPA774 BKK → HKG Jul 21, 07:45 UTCJul 21, 08:05 UTC20m
2026-07-21 CPA774 BKK → HKG Jul 21, 05:30 UTCJul 21, 05:55 UTC25m
2026-07-21 CPA717 HKG → BKK Jul 21, 01:20 UTCJul 21, 03:45 UTC2h 25m
2026-07-20 CPA313 HAK → HKG Jul 20, 09:45 UTCJul 20, 10:05 UTC20m
2026-07-20 CPA310 - Jul 20, 06:20 UTCJul 20, 06:35 UTC15m
2026-07-19 CPA917 TFU → HKG Jul 19, 12:10 UTCJul 20, 02:40 UTC14h 30m
2026-07-19 CPA313 - Jul 19, 10:05 UTCJul 19, 10:20 UTC15m
2026-07-19 CPA310 - Jul 19, 06:15 UTCJul 19, 06:25 UTC10m
2026-07-19 CPA730 KUL → HKG Jul 19, 03:35 UTCJul 19, 03:50 UTC15m
2026-07-19 CPA730 KUL → HKG Jul 19, 00:20 UTCJul 19, 00:45 UTC25m
2026-07-18 CPA729 - Jul 18, 12:00 UTCJul 18, 12:35 UTC35m
2026-07-18 CPA729 - Jul 18, 09:15 UTCJul 18, 09:30 UTC15m
2026-07-18 CPA933 - Jul 18, 01:30 UTCJul 18, 02:05 UTC35m
2026-07-17 CPA942 - Jul 17, 13:25 UTCJul 17, 13:45 UTC20m
2026-07-17 CPA947 ZGN → HKG Jul 17, 10:44 UTCJul 17, 11:15 UTC30m
2026-07-17 CPA946 - Jul 17, 03:39 UTCJul 17, 03:59 UTC20m
2026-07-16 CPA469 - Jul 16, 14:40 UTCJul 16, 16:05 UTC1h 25m
2026-07-16 CPA464 HKG → TPE Jul 16, 11:40 UTCJul 16, 13:15 UTC1h 35m
2026-07-16 CPA529 - Jul 16, 08:00 UTCJul 16, 09:35 UTC1h 35m
2026-07-16 CPA529 - Jul 16, 06:35 UTCJul 16, 06:45 UTC10m
2026-07-16 CPA528 - Jul 16, 04:40 UTCJul 16, 05:10 UTC30m
2026-07-16 CPA528 - Jul 16, 02:05 UTCJul 16, 03:40 UTC1h 35m
2026-07-15 CPA395 - Jul 15, 19:35 UTCJul 15, 22:30 UTC2h 55m
2026-07-15 CPA340 - Jul 15, 14:15 UTCJul 15, 14:35 UTC20m

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

Mode-S 78924D frequently asked

What is Mode-S code 78924D?
78924D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HPH.
Where is Mode-S 78924D registered?
Mode-S code 78924D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78924D broadcasting right now?
Mode-S 78924D 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 78924D, octal 36111115, decimal 7,901,773.
What flights does 78924D operate?
Mode-S 78924D has broadcast 20 distinct callsigns, including CPA730, CPA729, CPA513, CPA423, CPA774.