Apparatus

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sensors Mode-S transponder

780AA0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LCH · AIRBUS A-320

Hex
780AA0
Octal
36005240
Decimal
7,867,040
Country
CN
Tail
B-LCH
Type
A320
Broadcasting now · callsign HKE844 · 35,000 ft
Flights observed
328
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Current position

780AA0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780AA0 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
HKE717 - 26 2026-07-08
HKE845 - 18 2026-07-13
HKE599 - 18 2026-07-12
HKE598 - 18 2026-07-12
HKE844 - 14 2026-07-13
HKE272 - 13 2026-07-08
HKE716 - 12 2026-07-08
HKE858 - 10 2026-07-13
HKE553 - 9 2026-07-13
HKE552 - 9 2026-07-13
HKE791 Hong Kong Express Airways 8 2026-06-07
HKE747 Hong Kong Express Airways 8 2026-06-20
HKE273 - 8 2026-07-01
HKE879 - 7 2026-06-18
HKE863 - 7 2026-07-10
HKE746 Hong Kong Express Airways 7 2026-06-20
HKE163 Hong Kong Express Airways 7 2026-05-02
HKE862 - 6 2026-07-10
HKE790 Hong Kong Express Airways 6 2026-06-07
HKE115 - 6 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 HKE858 HKG → HKG Jul 13, 23:55 UTCJul 14, 04:55 UTC5h 0m
2026-07-13 HKE845 - Jul 13, 11:00 UTCJul 13, 12:35 UTC1h 35m
2026-07-13 HKE844 - Jul 13, 06:55 UTCJul 13, 09:00 UTC2h 5m
2026-07-13 HKE553 - Jul 13, 04:40 UTCJul 13, 04:55 UTC15m
2026-07-13 HKE552 - Jul 13, 00:45 UTCJul 13, 00:55 UTC10m
2026-07-12 HKE695 - Jul 12, 12:01 UTCJul 12, 14:45 UTC2h 45m
2026-07-12 HKE694 - Jul 12, 07:55 UTCJul 12, 10:40 UTC2h 45m
2026-07-12 HKE599 - Jul 12, 06:15 UTCJul 12, 06:30 UTC15m
2026-07-12 HKE598 - Jul 12, 00:01 UTCJul 12, 00:15 UTC15m
2026-07-10 HKE863 KIX → HKG Jul 10, 13:10 UTCJul 10, 16:30 UTC3h 20m
2026-07-10 HKE862 HKG → KIX Jul 10, 08:15 UTCJul 10, 11:45 UTC3h 30m
2026-07-10 HKE598 - Jul 10, 00:05 UTCJul 10, 00:20 UTC15m
2026-07-09 HKE599 - Jul 9, 06:10 UTCJul 9, 06:25 UTC15m
2026-07-09 HKE598 - Jul 9, 00:05 UTCJul 9, 00:15 UTC10m
2026-07-08 HKE272 - Jul 8, 10:30 UTCJul 8, 15:40 UTC5h 10m
2026-07-08 HKE717 - Jul 8, 08:20 UTCJul 8, 09:00 UTC40m
2026-07-08 HKE717 - Jul 8, 05:10 UTCJul 8, 05:25 UTC15m
2026-07-08 HKE716 - Jul 8, 00:20 UTCJul 8, 00:30 UTC10m
2026-07-07 HKE596 - Jul 7, 09:40 UTCJul 7, 09:55 UTC15m
2026-07-07 HKE173 - Jul 7, 06:50 UTCJul 7, 08:00 UTC1h 10m
2026-07-07 HKE172 - Jul 7, 04:35 UTCJul 7, 05:45 UTC1h 10m
2026-07-06 HKE272 HKG → HKG Jul 6, 10:15 UTCJul 6, 15:20 UTC5h 5m
2026-07-06 HKE717 - Jul 6, 08:20 UTCJul 6, 08:40 UTC20m
2026-07-06 HKE717 - Jul 6, 05:00 UTCJul 6, 05:15 UTC15m
2026-07-06 HKE716 - Jul 6, 00:15 UTCJul 6, 00:25 UTC10m
2026-07-05 HKE863 KIX → HKG Jul 5, 13:25 UTCJul 5, 16:55 UTC3h 30m
2026-07-05 HKE862 - Jul 5, 09:40 UTCJul 5, 12:15 UTC2h 35m
2026-07-05 HKE862 - Jul 5, 08:45 UTCJul 5, 08:55 UTC10m
2026-07-05 HKE563 - Jul 5, 06:55 UTCJul 5, 07:10 UTC15m
2026-07-05 HKE566 - Jul 5, 02:40 UTCJul 5, 02:55 UTC15m
2026-07-04 HKE212 - Jul 4, 07:05 UTCJul 4, 07:25 UTC20m
2026-07-04 HKE553 - Jul 4, 04:35 UTCJul 4, 05:00 UTC25m
2026-07-04 HKE552 - Jul 4, 00:50 UTCJul 4, 01:05 UTC15m
2026-07-03 HKE795 - Jul 3, 15:55 UTCJul 3, 16:00 UTC5m
2026-07-03 HKE795 - Jul 3, 10:20 UTCJul 3, 15:00 UTC4h 40m
2026-07-03 HKE784 - Jul 3, 08:30 UTCJul 3, 08:45 UTC15m
2026-07-03 HKE599 - Jul 3, 06:25 UTCJul 3, 06:35 UTC10m
2026-07-03 HKE598 HKG → PQC Jul 3, 00:05 UTCJul 3, 00:25 UTC20m
2026-07-02 HKE825 - Jul 2, 13:30 UTCJul 2, 13:35 UTC5m
2026-07-02 HKE825 - Jul 2, 12:05 UTCJul 2, 12:35 UTC30m
2026-07-02 HKE824 - Jul 2, 08:55 UTCJul 2, 09:20 UTC25m
2026-07-02 HKE824 - Jul 2, 08:00 UTCJul 2, 08:15 UTC15m
2026-07-02 HKE599 - Jul 2, 06:25 UTCJul 2, 06:35 UTC10m
2026-07-02 HKE598 HKG → PQC Jul 2, 00:05 UTCJul 2, 00:20 UTC15m
2026-07-01 HKE273 - Jul 1, 15:05 UTCJul 1, 15:20 UTC15m
2026-07-01 HKE272 - Jul 1, 10:10 UTCJul 1, 10:25 UTC15m
2026-07-01 HKE717 - Jul 1, 08:30 UTCJul 1, 08:45 UTC15m
2026-07-01 HKE717 - Jul 1, 05:10 UTCJul 1, 05:25 UTC15m
2026-07-01 HKE716 - Jul 1, 00:25 UTCJul 1, 00:35 UTC10m
2026-06-29 HKE671 - Jun 29, 15:34 UTCJun 29, 15:49 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-LCH page for operator, model, and routing details .

Mode-S 780AA0 frequently asked

What is Mode-S code 780AA0?
780AA0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LCH.
Where is Mode-S 780AA0 registered?
Mode-S code 780AA0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AA0 broadcasting right now?
Yes. Mode-S 780AA0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AA0, octal 36005240, decimal 7,867,040.
What flights does 780AA0 operate?
Mode-S 780AA0 has broadcast 20 distinct callsigns, including HKE717, HKE845, HKE599, HKE598, HKE844.