Apparatus

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sensors Mode-S transponder

78928F

ICAO 24-bit transponder address · allocated to China

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

Hex
78928F
Octal
36111217
Decimal
7,901,839
Country
CN
Tail
B-HPQ
Type
A21N
No current signal · last broadcast Jul 25, 13:00 UTC
Flights observed
410
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 13:00 UTC

Last known position

Most recent position reported by Mode-S 78928F.

Country allocation

The ICAO 24-bit address 78928F 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
CPA513 - 13 2026-07-12
CPA395 - 12 2026-07-05
CPA771 Cathay Pacific 11 2026-07-23
CPA770 Cathay Pacific 11 2026-07-23
CPA732 - 11 2026-07-15
CPA733 - 10 2026-07-15
CPA730 Cathay Pacific 10 2026-07-22
CPA721 - 10 2026-07-20
CPA427 - 10 2026-07-16
CPA774 - 9 2026-07-16
CPA717 - 9 2026-07-16
CPA512 - 9 2026-07-12
CPA439 Cathay Pacific 9 2026-07-25
CPA340 - 9 2026-07-05
CPA773 - 8 2026-06-28
CPA744 Cathay Pacific 8 2026-07-21
CPA729 Cathay Pacific 8 2026-07-21
CPA563 - 8 2026-06-28
CPA469 Cathay Pacific 8 2026-07-23
CPA426 - 8 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CPA916 HKG → TFU Jul 25, 12:45 UTCJul 25, 13:00 UTC15m
2026-07-25 CPA439 ICN → HKG Jul 25, 05:20 UTCJul 25, 09:00 UTC3h 40m
2026-07-25 CPA434 HKG → ICN Jul 25, 00:15 UTCJul 25, 03:35 UTC3h 20m
2026-07-24 CPA307 - Jul 24, 14:10 UTCJul 24, 14:40 UTC30m
2026-07-24 CPA396 - Jul 24, 09:50 UTCJul 24, 10:05 UTC15m
2026-07-24 CPA423 KHH → HKG Jul 24, 05:45 UTCJul 24, 06:50 UTC1h 5m
2026-07-24 CPA424 HKG → KHH Jul 24, 03:20 UTCJul 24, 04:25 UTC1h 5m
2026-07-23 CPA469 TPE → HKG Jul 23, 16:15 UTCJul 23, 17:35 UTC1h 20m
2026-07-23 CPA464 - Jul 23, 13:25 UTCJul 23, 14:50 UTC1h 25m
2026-07-23 CPA770 HKT → HKG Jul 23, 08:15 UTCJul 23, 08:35 UTC20m
2026-07-23 CPA770 HKT → HKG Jul 23, 01:30 UTCJul 23, 07:40 UTC6h 10m
2026-07-23 CPA771 HKG → HKT Jul 23, 00:40 UTCJul 23, 00:55 UTC15m
2026-07-22 CPA569 KIX → HKG Jul 22, 11:10 UTCJul 22, 14:10 UTC3h 0m
2026-07-22 CPA730 KUL → HKG Jul 22, 03:25 UTCJul 22, 03:50 UTC25m
2026-07-22 CPA730 KUL → HKG Jul 22, 00:20 UTCJul 22, 00:40 UTC20m
2026-07-21 CPA729 HKG → KUL Jul 21, 12:00 UTCJul 21, 12:30 UTC30m
2026-07-21 CPA729 HKG → KUL Jul 21, 09:10 UTCJul 21, 09:25 UTC15m
2026-07-21 CPA744 SGN → HKG Jul 21, 02:25 UTCJul 21, 02:40 UTC15m
2026-07-20 CPA721 - Jul 20, 15:40 UTCJul 20, 15:55 UTC15m
2026-07-20 CPA307 - Jul 20, 13:25 UTCJul 20, 14:05 UTC40m
2026-07-20 CPA396 - Jul 20, 09:20 UTCJul 20, 10:20 UTC1h 0m
2026-07-20 CPA309 CSX → HKG Jul 20, 03:00 UTCJul 20, 07:15 UTC4h 15m
2026-07-19 CPA962 HKG → HKG Jul 19, 09:10 UTCJul 19, 15:05 UTC5h 55m
2026-07-19 CPA608 PNH → HKG Jul 19, 07:00 UTCJul 19, 07:20 UTC20m
2026-07-19 CPA607 - Jul 19, 01:10 UTCJul 19, 01:25 UTC15m
2026-07-18 CPA991 - Jul 18, 13:25 UTCJul 18, 14:10 UTC45m
2026-07-18 CPA990 - Jul 18, 10:00 UTCJul 18, 10:20 UTC20m
2026-07-17 CPA962 - Jul 17, 08:30 UTCJul 17, 13:45 UTC5h 15m
2026-07-17 CPA906 MNL → HKG Jul 17, 04:54 UTCJul 17, 05:10 UTC15m
2026-07-17 CPA906 MNL → HKG Jul 17, 03:25 UTCJul 17, 03:59 UTC35m
2026-07-17 CPA907 HKG → MNL Jul 17, 01:05 UTCJul 17, 01:35 UTC30m
2026-07-16 CPA907 HKG → MNL Jul 16, 23:55 UTCJul 17, 00:04 UTC10m
2026-07-16 CPA427 ICN → HKG Jul 16, 17:10 UTCJul 16, 20:19 UTC3h 10m
2026-07-16 CPA426 - Jul 16, 12:05 UTCJul 16, 15:19 UTC3h 15m
2026-07-16 CPA774 - Jul 16, 08:35 UTCJul 16, 08:55 UTC20m
2026-07-16 CPA774 - Jul 16, 06:05 UTCJul 16, 06:25 UTC20m
2026-07-16 CPA717 - Jul 16, 04:25 UTCJul 16, 04:35 UTC10m
2026-07-16 CPA717 - Jul 16, 02:15 UTCJul 16, 02:30 UTC15m
2026-07-15 CPA732 - Jul 15, 22:10 UTCJul 15, 22:30 UTC20m
2026-07-15 CPA732 - Jul 15, 18:50 UTCJul 15, 19:20 UTC30m
2026-07-15 CPA733 - Jul 15, 16:35 UTCJul 15, 17:00 UTC25m
2026-07-15 CPA733 - Jul 15, 13:50 UTCJul 15, 14:00 UTC10m
2026-07-15 CPA956 HKG → HKG Jul 15, 03:25 UTCJul 15, 09:50 UTC6h 25m
2026-07-14 CPA957 HKG → HKG Jul 14, 05:05 UTCJul 14, 11:40 UTC6h 35m
2026-07-14 CPA305 - Jul 14, 01:30 UTCJul 14, 02:10 UTC40m
2026-07-13 CPA304 - Jul 13, 12:10 UTCJul 13, 13:15 UTC1h 5m
2026-07-13 CPA906 - Jul 13, 03:15 UTCJul 13, 05:05 UTC1h 50m
2026-07-12 CPA907 - Jul 12, 23:45 UTCJul 13, 01:35 UTC1h 50m
2026-07-12 CPA427 ICN → HKG Jul 12, 17:05 UTCJul 12, 20:05 UTC3h 0m
2026-07-12 CPA426 HKG → ICN Jul 12, 12:01 UTCJul 12, 15:10 UTC3h 10m

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

Mode-S 78928F frequently asked

What is Mode-S code 78928F?
78928F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HPQ.
Where is Mode-S 78928F registered?
Mode-S code 78928F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78928F broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 13:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78928F, octal 36111217, decimal 7,901,839.
What flights does 78928F operate?
Mode-S 78928F has broadcast 20 distinct callsigns, including CPA513, CPA395, CPA771, CPA770, CPA732.