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
Transponder active on ground
Flights observed
181
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

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
CPA771 Cathay Pacific 7 2026-05-25
CPA395 Cathay Pacific 7 2026-05-22
CPA926 Cathay Pacific 6 2026-05-27
CPA925 Cathay Pacific 6 2026-05-28
CPA770 Cathay Pacific 6 2026-05-25
CPA730 Cathay Pacific 6 2026-05-24
CPA563 Cathay Pacific 6 2026-05-27
CPA773 Cathay Pacific 5 2026-05-10
CPA732 Cathay Pacific 5 2026-05-17
CPA439 Cathay Pacific 5 2026-05-29
CPA340 Cathay Pacific 5 2026-05-22
CPA774 Cathay Pacific 4 2026-04-25
CPA733 Cathay Pacific 4 2026-05-17
CPA729 Cathay Pacific 4 2026-05-23
CPA721 Cathay Pacific 4 2026-04-28
CPA532 Cathay Pacific 4 2026-05-26
CPA427 Cathay Pacific 4 2026-05-06
CPA309 Cathay Pacific 4 2026-05-26
CPA962 Cathay Pacific 3 2026-05-30
CPA959 Cathay Pacific 3 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CPA962 HKG → HGH May 30, 08:25 UTCMay 30, 09:20 UTC55m
2026-05-30 CPA917 TFU → HKG May 30, 01:55 UTCMay 30, 02:15 UTC20m
2026-05-29 CPA916 HKG → TFU May 29, 11:30 UTCMay 29, 11:50 UTC20m
2026-05-29 CPA439 ICN → HKG May 29, 05:15 UTCMay 29, 08:20 UTC3h 5m
2026-05-29 CPA434 HKG → ICN May 29, 00:05 UTCMay 29, 03:20 UTC3h 15m
2026-05-28 CPA925 HKG → CEB May 28, 08:15 UTCMay 28, 14:15 UTC6h 0m
2026-05-28 CPA945 CKG → HKG May 28, 05:40 UTCMay 28, 06:15 UTC35m
2026-05-28 CPA928 HKG → CKG May 28, 00:25 UTCMay 28, 00:45 UTC20m
2026-05-27 CPA926 CEB → HKG May 27, 13:50 UTCMay 27, 14:10 UTC20m
2026-05-27 CPA925 HKG → CEB May 27, 07:35 UTCMay 27, 13:00 UTC5h 25m
2026-05-27 CPA563 NGO → HKG May 27, 04:30 UTCMay 27, 04:45 UTC15m
2026-05-27 CPA563 NGO → HKG May 27, 01:24 UTCMay 27, 03:54 UTC2h 30m
2026-05-26 CPA532 HKG → NGO May 26, 08:39 UTCMay 26, 12:00 UTC3h 20m
2026-05-26 CPA309 CSX → HKG May 26, 05:20 UTCMay 26, 05:59 UTC40m
2026-05-26 CPA330 HKG → CSX May 26, 01:55 UTCMay 26, 02:15 UTC20m
2026-05-25 CPA770 HKT → HKG May 25, 14:55 UTCMay 25, 15:15 UTC20m
2026-05-25 CPA771 HKG → HKT May 25, 02:05 UTCMay 25, 13:10 UTC11h 5m
2026-05-24 CPA569 KIX → HKG May 24, 10:55 UTCMay 24, 14:20 UTC3h 25m
2026-05-24 CPA598 HKG → KIX May 24, 05:50 UTCMay 24, 09:05 UTC3h 15m
2026-05-24 CPA730 KUL → HKG May 24, 03:45 UTCMay 24, 04:00 UTC15m
2026-05-24 CPA730 KUL → HKG May 24, 00:30 UTCMay 24, 00:55 UTC25m
2026-05-23 CPA729 HKG → KUL May 23, 12:25 UTCMay 23, 12:45 UTC20m
2026-05-23 CPA729 HKG → KUL May 23, 09:30 UTCMay 23, 09:45 UTC15m
2026-05-23 CPA423 KHH → HKG May 23, 05:40 UTCMay 23, 06:45 UTC1h 5m
2026-05-23 CPA424 HKG → KHH May 23, 03:15 UTCMay 23, 04:20 UTC1h 5m
2026-05-22 CPA395 PEK → HKG May 22, 21:50 UTCMay 22, 22:20 UTC30m
2026-05-22 CPA340 HKG → PEK May 22, 14:35 UTCMay 22, 14:55 UTC20m
2026-05-22 CPA770 HKT → HKG May 22, 07:55 UTCMay 22, 08:15 UTC20m
2026-05-22 CPA770 HKT → HKG May 22, 02:10 UTCMay 22, 06:30 UTC4h 20m
2026-05-22 CPA771 HKG → HKT May 22, 00:20 UTCMay 22, 00:40 UTC20m
2026-05-21 CPA395 PEK → HKG May 21, 19:45 UTCMay 21, 22:55 UTC3h 10m
2026-05-21 CPA340 HKG → PEK May 21, 14:50 UTCMay 21, 15:00 UTC10m
2026-05-21 CPA947 XIY → HKG May 21, 03:50 UTCMay 21, 11:05 UTC7h 15m
2026-05-20 CPA991 FOC → HKG May 20, 14:35 UTCMay 20, 15:00 UTC25m
2026-05-20 CPA990 HKG → FOC May 20, 10:45 UTCMay 20, 11:00 UTC15m
2026-05-20 CPA770 HKT → HKG May 20, 08:35 UTCMay 20, 08:55 UTC20m
2026-05-20 CPA771 HKG → HKT May 20, 02:35 UTCMay 20, 07:00 UTC4h 26m
2026-05-20 CPA771 HKG → HKT May 20, 00:45 UTCMay 20, 00:55 UTC10m
2026-05-19 CPA926 CEB → HKG May 19, 07:50 UTCMay 19, 14:10 UTC6h 20m
2026-05-19 CPA563 NGO → HKG May 19, 04:25 UTCMay 19, 05:15 UTC50m
2026-05-19 CPA563 NGO → HKG May 19, 01:15 UTCMay 19, 03:50 UTC2h 35m
2026-05-18 CPA532 HKG → NGO May 18, 08:45 UTCMay 18, 12:20 UTC3h 35m
2026-05-18 CPA740 HAN → HKG May 18, 05:10 UTCMay 18, 05:45 UTC35m
2026-05-18 CPA741 HKG → HAN May 18, 01:00 UTCMay 18, 01:10 UTC10m
2026-05-17 CPA732 KUL → HKG May 17, 22:30 UTCMay 17, 22:45 UTC15m
2026-05-17 CPA732 KUL → HKG May 17, 19:10 UTCMay 17, 19:35 UTC25m
2026-05-17 CPA733 HKG → KUL May 17, 14:01 UTCMay 17, 17:20 UTC3h 20m
2026-05-12 CPA963 HGH → HKG May 12, 13:35 UTCMay 12, 14:00 UTC25m
2026-05-12 CPA962 HKG → HGH May 12, 08:25 UTCMay 12, 09:00 UTC35m
2026-05-12 CPA563 NGO → HKG May 12, 04:55 UTCMay 12, 05:10 UTC15m

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?
Mode-S 78928F 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 78928F, octal 36111217, decimal 7,901,839.
What flights does 78928F operate?
Mode-S 78928F has broadcast 20 distinct callsigns, including CPA771, CPA395, CPA926, CPA925, CPA770.