Apparatus

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sensors Mode-S transponder

780AC5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LEE · AIRBUS A-321

Hex
780AC5
Octal
36005305
Decimal
7,867,077
Country
CN
Tail
B-LEE
Type
A321
No current signal · last broadcast 2h ago
Flights observed
413
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 780AC5.

Country allocation

The ICAO 24-bit address 780AC5 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
HKE631 - 23 2026-07-13
HKE639 - 21 2026-07-10
HKE630 - 16 2026-07-13
HKE226 - 15 2026-07-13
HKE172 - 14 2026-07-04
HKE638 - 13 2026-07-14
HKE173 - 13 2026-07-04
HKE619 - 12 2026-07-07
HKE691 Hong Kong Express Airways 11 2026-05-24
HKE618 - 11 2026-07-06
HKE689 Hong Kong Express Airways 10 2026-06-11
HKE227 - 10 2026-06-23
HKE111 - 10 2026-07-08
HKE688 Hong Kong Express Airways 9 2026-06-11
HKE559 - 9 2026-06-29
HKE825 - 8 2026-07-07
HKE755 - 8 2026-07-11
HKE744 - 8 2026-07-11
HKE703 Hong Kong Express Airways 8 2026-05-22
HKE702 Hong Kong Express Airways 8 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HKE638 - Jul 14, 04:45 UTCJul 14, 06:15 UTC1h 30m
2026-07-13 HKE226 - Jul 13, 12:35 UTCJul 14, 03:25 UTC14h 50m
2026-07-13 HKE631 ICN → HKG Jul 13, 06:50 UTCJul 13, 10:00 UTC3h 10m
2026-07-13 HKE630 HKG → ICN Jul 13, 02:20 UTCJul 13, 05:31 UTC3h 10m
2026-07-12 HKE733 - Jul 12, 20:10 UTCJul 12, 20:15 UTC5m
2026-07-12 HKE733 - Jul 12, 17:55 UTCJul 12, 18:05 UTC10m
2026-07-12 HKE732 - Jul 12, 15:45 UTCJul 12, 16:05 UTC20m
2026-07-12 HKE732 - Jul 12, 13:40 UTCJul 12, 13:55 UTC15m
2026-07-12 HKE669 - Jul 12, 07:31 UTCJul 12, 10:15 UTC2h 45m
2026-07-12 HKE668 - Jul 12, 04:01 UTCJul 12, 06:05 UTC2h 5m
2026-07-12 HKE668 - Jul 12, 03:10 UTCJul 12, 03:30 UTC20m
2026-07-11 HKE755 - Jul 11, 14:35 UTCJul 11, 14:50 UTC15m
2026-07-11 HKE755 - Jul 11, 12:30 UTCJul 11, 12:55 UTC25m
2026-07-11 HKE744 - Jul 11, 10:55 UTCJul 11, 11:30 UTC35m
2026-07-11 HKE744 - Jul 11, 09:00 UTCJul 11, 09:15 UTC15m
2026-07-10 HKE517 - Jul 10, 19:35 UTCJul 10, 19:50 UTC15m
2026-07-10 HKE517 - Jul 10, 18:10 UTCJul 10, 18:45 UTC35m
2026-07-10 HKE516 - Jul 10, 16:15 UTCJul 10, 16:50 UTC35m
2026-07-10 HKE516 - Jul 10, 15:10 UTCJul 10, 15:30 UTC20m
2026-07-10 HKE639 - Jul 10, 12:05 UTCJul 10, 12:20 UTC15m
2026-07-10 HKE639 - Jul 10, 10:45 UTCJul 10, 11:30 UTC45m
2026-07-10 HKE639 - Jul 10, 09:20 UTCJul 10, 09:30 UTC10m
2026-07-10 HKE638 - Jul 10, 04:45 UTCJul 10, 07:35 UTC2h 50m
2026-07-09 HKE226 HKG → HKG Jul 9, 12:30 UTCJul 10, 03:20 UTC14h 50m
2026-07-09 HKE631 ICN → HKG Jul 9, 06:50 UTCJul 9, 09:50 UTC3h 0m
2026-07-09 HKE630 HKG → ICN Jul 9, 02:05 UTCJul 9, 05:25 UTC3h 20m
2026-07-08 HKE755 - Jul 8, 15:00 UTCJul 8, 15:05 UTC5m
2026-07-08 HKE755 - Jul 8, 12:50 UTCJul 8, 14:25 UTC1h 35m
2026-07-08 HKE744 - Jul 8, 11:20 UTCJul 8, 11:50 UTC30m
2026-07-08 HKE744 - Jul 8, 09:25 UTCJul 8, 09:40 UTC15m
2026-07-08 HKE111 - Jul 8, 07:15 UTCJul 8, 07:30 UTC15m
2026-07-08 HKE111 - Jul 8, 05:55 UTCJul 8, 06:35 UTC40m
2026-07-08 HKE110 HKG → TPE Jul 8, 03:25 UTCJul 8, 04:45 UTC1h 20m
2026-07-07 HKE825 - Jul 7, 12:05 UTCJul 7, 14:15 UTC2h 10m
2026-07-07 HKE824 - Jul 7, 08:35 UTCJul 7, 10:05 UTC1h 30m
2026-07-07 HKE619 ICN → HKG Jul 7, 04:15 UTCJul 7, 07:20 UTC3h 5m
2026-07-06 HKE618 HKG → ICN Jul 6, 23:30 UTCJul 7, 02:45 UTC3h 15m
2026-07-06 HKE755 - Jul 6, 14:30 UTCJul 6, 14:55 UTC25m
2026-07-06 HKE755 - Jul 6, 12:25 UTCJul 6, 13:55 UTC1h 30m
2026-07-06 HKE744 - Jul 6, 11:10 UTCJul 6, 11:30 UTC20m
2026-07-06 HKE744 - Jul 6, 09:00 UTCJul 6, 09:15 UTC15m
2026-07-06 HKE619 - Jul 6, 04:15 UTCJul 6, 07:20 UTC3h 5m
2026-07-05 HKE618 HKG → ICN Jul 5, 23:25 UTCJul 6, 02:40 UTC3h 15m
2026-07-05 HKE755 - Jul 5, 14:50 UTCJul 5, 15:20 UTC30m
2026-07-05 HKE755 - Jul 5, 12:45 UTCJul 5, 13:15 UTC30m
2026-07-05 HKE744 - Jul 5, 09:50 UTCJul 5, 11:35 UTC1h 45m
2026-07-05 HKE744 - Jul 5, 09:05 UTCJul 5, 09:15 UTC10m
2026-07-05 HKE601 - Jul 5, 06:45 UTCJul 5, 07:00 UTC15m
2026-07-05 HKE601 - Jul 5, 04:10 UTCJul 5, 06:10 UTC2h 0m
2026-07-05 HKE600 - Jul 5, 02:25 UTCJul 5, 02:45 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-LEE page for operator, model, and routing details .

Mode-S 780AC5 frequently asked

What is Mode-S code 780AC5?
780AC5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LEE.
Where is Mode-S 780AC5 registered?
Mode-S code 780AC5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AC5 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AC5, octal 36005305, decimal 7,867,077.
What flights does 780AC5 operate?
Mode-S 780AC5 has broadcast 20 distinct callsigns, including HKE631, HKE639, HKE630, HKE226, HKE172.