Apparatus

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sensors Mode-S transponder

780A71

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LCJ · AIRBUS A-320

Hex
780A71
Octal
36005161
Decimal
7,866,993
Country
CN
Tail
B-LCJ
Type
A320
Broadcasting now · callsign HKE131 · 23,225 ft
Flights observed
404
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Current position

780A71 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780A71 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
HKE845 - 28 2026-07-12
HKE791 - 25 2026-07-06
HKE844 - 24 2026-07-12
HKE790 - 19 2026-07-06
HKE747 - 16 2026-07-04
HKE717 - 15 2026-07-11
HKE746 - 14 2026-07-04
HKE879 - 13 2026-07-09
HKE858 - 10 2026-07-09
HKE131 - 9 2026-07-01
HKE115 Hong Kong Express Airways 9 2026-06-03
HKE251 - 8 2026-07-06
HKE250 - 8 2026-07-06
HKE130 - 8 2026-07-14
HKE769 - 7 2026-06-22
HKE768 Hong Kong Express Airways 7 2026-06-22
HKE599 - 7 2026-06-13
HKE598 Hong Kong Express Airways 7 2026-06-13
HKE135 Hong Kong Express Airways 7 2026-06-15
HKE716 - 6 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HKE130 HKG → KHH Jul 14, 00:15 UTCJul 14, 01:25 UTC1h 10m
2026-07-13 HKE759 - Jul 13, 10:50 UTCJul 13, 11:05 UTC15m
2026-07-13 HKE758 - Jul 13, 09:25 UTCJul 13, 09:40 UTC15m
2026-07-13 HKE758 - Jul 13, 07:25 UTCJul 13, 07:35 UTC10m
2026-07-12 HKE845 - Jul 12, 10:25 UTCJul 12, 12:05 UTC1h 40m
2026-07-12 HKE844 - Jul 12, 06:35 UTCJul 12, 08:45 UTC2h 10m
2026-07-12 HKE553 - Jul 12, 04:25 UTCJul 12, 04:45 UTC20m
2026-07-12 HKE552 - Jul 12, 00:45 UTCJul 12, 01:00 UTC15m
2026-07-11 HKE597 - Jul 11, 15:40 UTCJul 11, 16:05 UTC25m
2026-07-11 HKE596 - Jul 11, 09:50 UTCJul 11, 10:10 UTC20m
2026-07-11 HKE717 - Jul 11, 08:10 UTCJul 11, 08:35 UTC25m
2026-07-11 HKE717 - Jul 11, 05:05 UTCJul 11, 05:15 UTC10m
2026-07-11 HKE716 - Jul 11, 03:25 UTCJul 11, 03:45 UTC20m
2026-07-11 HKE716 - Jul 11, 00:30 UTCJul 11, 00:45 UTC15m
2026-07-10 HKE651 NRT → HKG Jul 10, 11:45 UTCJul 10, 15:50 UTC4h 5m
2026-07-10 HKE650 HKG → NRT Jul 10, 06:30 UTCJul 10, 10:30 UTC4h 0m
2026-07-09 HKE845 - Jul 9, 10:10 UTCJul 9, 12:20 UTC2h 10m
2026-07-09 HKE844 - Jul 9, 06:35 UTCJul 9, 08:05 UTC1h 30m
2026-07-09 HKE879 - Jul 9, 03:00 UTCJul 9, 04:25 UTC1h 25m
2026-07-09 HKE858 - Jul 9, 00:05 UTCJul 9, 01:20 UTC1h 15m
2026-07-08 HKE845 - Jul 8, 10:00 UTCJul 8, 12:05 UTC2h 5m
2026-07-08 HKE844 - Jul 8, 06:45 UTCJul 8, 08:15 UTC1h 30m
2026-07-07 HKE759 - Jul 7, 13:25 UTCJul 7, 13:50 UTC25m
2026-07-07 HKE759 - Jul 7, 11:10 UTCJul 7, 12:45 UTC1h 35m
2026-07-07 HKE758 HKG → BKK Jul 7, 07:25 UTCJul 7, 10:00 UTC2h 35m
2026-07-07 HKE879 - Jul 7, 03:10 UTCJul 7, 04:40 UTC1h 30m
2026-07-07 HKE858 HKG → ISG Jul 7, 00:10 UTCJul 7, 01:20 UTC1h 10m
2026-07-06 HKE791 BKI → HKG Jul 6, 17:35 UTCJul 6, 20:05 UTC2h 30m
2026-07-06 HKE790 - Jul 6, 16:15 UTCJul 6, 16:40 UTC25m
2026-07-06 HKE790 - Jul 6, 14:05 UTCJul 6, 14:25 UTC20m
2026-07-06 HKE845 - Jul 6, 10:20 UTCJul 6, 12:00 UTC1h 40m
2026-07-06 HKE844 - Jul 6, 06:30 UTCJul 6, 08:40 UTC2h 10m
2026-07-06 HKE251 - Jul 6, 04:55 UTCJul 6, 05:15 UTC20m
2026-07-06 HKE250 - Jul 6, 01:05 UTCJul 6, 01:20 UTC15m
2026-07-05 HKE251 - Jul 5, 14:40 UTCJul 5, 15:00 UTC20m
2026-07-05 HKE250 - Jul 5, 10:55 UTCJul 5, 11:10 UTC15m
2026-07-04 HKE747 - Jul 4, 11:55 UTCJul 4, 12:10 UTC15m
2026-07-04 HKE747 - Jul 4, 08:45 UTCJul 4, 08:55 UTC10m
2026-07-04 HKE746 - Jul 4, 04:25 UTCJul 4, 04:45 UTC20m
2026-07-03 HKE747 - Jul 3, 11:40 UTCJul 3, 12:05 UTC25m
2026-07-03 HKE747 - Jul 3, 08:45 UTCJul 3, 08:55 UTC10m
2026-07-03 HKE746 - Jul 3, 07:30 UTCJul 3, 07:40 UTC10m
2026-07-03 HKE746 - Jul 3, 04:20 UTCJul 3, 04:40 UTC20m
2026-07-03 HKE673 - Jul 3, 01:25 UTCJul 3, 01:45 UTC20m
2026-07-02 HKE673 - Jul 2, 22:40 UTCJul 3, 00:50 UTC2h 10m
2026-07-02 HKE656 - Jul 2, 18:25 UTCJul 2, 21:15 UTC2h 50m
2026-07-02 HKE643 - Jul 2, 10:10 UTCJul 2, 10:25 UTC15m
2026-07-02 HKE643 - Jul 2, 07:10 UTCJul 2, 09:30 UTC2h 20m
2026-07-02 HKE642 - Jul 2, 02:55 UTCJul 2, 06:00 UTC3h 5m
2026-07-01 HKE845 - Jul 1, 11:40 UTCJul 1, 12:00 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-LCJ page for operator, model, and routing details .

Mode-S 780A71 frequently asked

What is Mode-S code 780A71?
780A71 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LCJ.
Where is Mode-S 780A71 registered?
Mode-S code 780A71 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A71 broadcasting right now?
Yes. Mode-S 780A71 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A71, octal 36005161, decimal 7,866,993.
What flights does 780A71 operate?
Mode-S 780A71 has broadcast 20 distinct callsigns, including HKE845, HKE791, HKE844, HKE790, HKE747.