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sensors Mode-S transponder

780AA1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LCI · AIRBUS A-320

Hex
780AA1
Octal
36005241
Decimal
7,867,041
Country
CN
Tail
B-LCI
Type
A320
No current signal · last broadcast Jul 26, 16:30 UTC
Flights observed
383
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:30 UTC

Last known position

Most recent position reported by Mode-S 780AA1.

Country allocation

The ICAO 24-bit address 780AA1 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
HKE746 - 32 2026-07-18
HKE747 - 31 2026-07-18
HKE717 - 29 2026-07-05
HKE791 - 20 2026-07-13
HKE716 - 15 2026-07-03
HKE790 - 14 2026-07-13
HKE845 Hong Kong Express Airways 13 2026-07-22
HKE844 - 11 2026-06-25
HKE251 Hong Kong Express Airways 11 2026-07-24
HKE552 Hong Kong Express Airways 10 2026-07-19
HKE250 Hong Kong Express Airways 10 2026-07-24
HKE553 Hong Kong Express Airways 9 2026-07-19
HKE212 Hong Kong Express Airways 9 2026-07-25
HKE833 - 8 2026-06-27
HKE599 Hong Kong Express Airways 8 2026-07-21
HKE272 - 8 2026-07-26
HKE163 Hong Kong Express Airways 8 2026-05-01
HKE858 Hong Kong Express Airways 7 2026-07-26
HKE706 - 7 2026-07-05
HKE598 - 7 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HKE273 - Jul 26, 16:15 UTCJul 26, 16:25 UTC10m
2026-07-26 HKE272 - Jul 26, 10:30 UTCJul 26, 11:55 UTC1h 25m
2026-07-26 HKE879 ISG → HKG Jul 26, 06:20 UTCJul 26, 08:00 UTC1h 41m
2026-07-26 HKE858 HKG → ISG Jul 26, 03:10 UTCJul 26, 04:15 UTC1h 5m
2026-07-25 HKE212 HKG → YIW Jul 25, 06:30 UTCJul 25, 11:55 UTC5h 25m
2026-07-24 HKE214 HKG → WUX Jul 24, 08:45 UTCJul 24, 16:10 UTC7h 25m
2026-07-24 HKE251 SYX → HKG Jul 24, 04:45 UTCJul 24, 05:00 UTC15m
2026-07-24 HKE250 HKG → SYX Jul 24, 00:55 UTCJul 24, 01:10 UTC15m
2026-07-23 HKE769 PEN → HKG Jul 23, 20:45 UTCJul 23, 21:10 UTC25m
2026-07-23 HKE769 PEN → HKG Jul 23, 17:45 UTCJul 23, 17:55 UTC10m
2026-07-23 HKE768 HKG → PEN Jul 23, 15:35 UTCJul 23, 15:50 UTC15m
2026-07-23 HKE768 HKG → PEN Jul 23, 12:40 UTCJul 23, 12:55 UTC15m
2026-07-23 HKE212 HKG → YIW Jul 23, 06:35 UTCJul 23, 11:00 UTC4h 25m
2026-07-23 HKE858 HKG → ISG Jul 23, 00:00 UTCJul 23, 04:45 UTC4h 45m
2026-07-22 HKE845 OKA → HKG Jul 22, 11:10 UTCJul 22, 12:30 UTC1h 20m
2026-07-22 HKE541 HAN → HKG Jul 22, 03:55 UTCJul 22, 04:20 UTC25m
2026-07-22 HKE541 HAN → HKG Jul 22, 02:55 UTCJul 22, 03:10 UTC15m
2026-07-22 HKE540 HKG → HAN Jul 22, 00:15 UTCJul 22, 00:30 UTC15m
2026-07-21 HKE214 HKG → WUX Jul 21, 08:40 UTCJul 21, 14:30 UTC5h 50m
2026-07-21 HKE599 PQC → HKG Jul 21, 06:10 UTCJul 21, 06:25 UTC15m
2026-07-21 HKE598 - Jul 21, 00:10 UTCJul 21, 00:25 UTC15m
2026-07-20 HKE214 HKG → WUX Jul 20, 08:40 UTCJul 20, 14:40 UTC6h 0m
2026-07-19 HKE272 HKG → HKG Jul 19, 10:10 UTCJul 19, 15:10 UTC5h 0m
2026-07-19 HKE553 DAD → HKG Jul 19, 06:35 UTCJul 19, 06:55 UTC20m
2026-07-19 HKE552 HKG → DAD Jul 19, 02:55 UTCJul 19, 03:05 UTC10m
2026-07-18 HKE747 - Jul 18, 11:40 UTCJul 18, 12:10 UTC30m
2026-07-18 HKE746 - Jul 18, 07:00 UTCJul 18, 07:15 UTC15m
2026-07-18 HKE746 - Jul 18, 04:05 UTCJul 18, 04:20 UTC15m
2026-07-17 HKE747 - Jul 17, 11:55 UTCJul 17, 12:15 UTC20m
2026-07-17 HKE747 - Jul 17, 08:40 UTCJul 17, 08:49 UTC10m
2026-07-17 HKE746 - Jul 17, 07:05 UTCJul 17, 07:20 UTC15m
2026-07-17 HKE746 - Jul 17, 04:10 UTCJul 17, 04:25 UTC15m
2026-07-16 HKE747 - Jul 16, 12:40 UTCJul 16, 12:55 UTC15m
2026-07-16 HKE747 - Jul 16, 09:15 UTCJul 16, 09:25 UTC10m
2026-07-16 HKE746 - Jul 16, 04:50 UTCJul 16, 05:05 UTC15m
2026-07-15 HKE747 - Jul 15, 11:55 UTCJul 15, 12:10 UTC15m
2026-07-15 HKE747 - Jul 15, 08:40 UTCJul 15, 08:50 UTC10m
2026-07-15 HKE746 - Jul 15, 04:20 UTCJul 15, 04:35 UTC15m
2026-07-14 HKE599 - Jul 14, 08:15 UTCJul 14, 08:35 UTC20m
2026-07-14 HKE598 - Jul 14, 02:30 UTCJul 14, 02:45 UTC15m
2026-07-13 HKE791 - Jul 13, 19:45 UTCJul 13, 20:05 UTC20m
2026-07-13 HKE791 - Jul 13, 17:30 UTCJul 13, 18:00 UTC30m
2026-07-13 HKE790 - Jul 13, 15:55 UTCJul 13, 16:25 UTC30m
2026-07-13 HKE790 - Jul 13, 13:55 UTCJul 13, 14:15 UTC20m
2026-07-13 HKE212 HKG → HKG Jul 13, 06:40 UTCJul 13, 11:40 UTC5h 0m
2026-07-12 HKE747 - Jul 12, 11:45 UTCJul 12, 12:10 UTC25m
2026-07-12 HKE746 - Jul 12, 04:10 UTCJul 12, 04:25 UTC15m
2026-07-11 HKE791 - Jul 11, 19:20 UTCJul 11, 19:50 UTC30m
2026-07-11 HKE791 - Jul 11, 17:10 UTCJul 11, 17:35 UTC25m
2026-07-11 HKE790 - Jul 11, 15:50 UTCJul 11, 16:10 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-LCI page for operator, model, and routing details .

Mode-S 780AA1 frequently asked

What is Mode-S code 780AA1?
780AA1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LCI.
Where is Mode-S 780AA1 registered?
Mode-S code 780AA1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AA1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AA1, octal 36005241, decimal 7,867,041.
What flights does 780AA1 operate?
Mode-S 780AA1 has broadcast 20 distinct callsigns, including HKE746, HKE747, HKE717, HKE791, HKE716.