Apparatus

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sensors Mode-S transponder

780A1C

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LJD · BOEING 747-8

Hex
780A1C
Octal
36005034
Decimal
7,866,908
Country
CN
Tail
B-LJD
Type
B748
Broadcasting now · callsign CPA2083 · 39,700 ft
Flights observed
285
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Current position

780A1C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780A1C 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
CPA037 - 19 2026-07-10
CPA072 - 12 2026-06-26
CPA097 Cathay Pacific 10 2026-06-11
CPA090 Cathay Pacific 10 2026-04-18
CPA014 - 10 2026-06-29
CPA3298 - 9 2026-06-23
CPA2087 Cathay Pacific 9 2026-04-17
CPA096 Cathay Pacific 9 2026-06-10
CPA085 - 9 2026-06-24
CPA2086 Cathay Pacific 8 2026-04-15
CPA015 Cathay Pacific 8 2026-06-28
CPA086 - 7 2026-06-30
CPA061 Cathay Pacific 7 2026-07-04
CPA035 - 7 2026-07-09
CPA3170 - 6 2026-07-02
CPA2084 - 6 2026-07-14
CPA2046 Cathay Pacific 6 2026-06-02
CPA080 - 6 2026-07-12
CPA3286 - 5 2026-04-13
CPA3275 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CPA2084 - Jul 14, 03:05 UTCJul 14, 04:45 UTC1h 40m
2026-07-13 CPA2084 - Jul 13, 19:25 UTCJul 14, 00:15 UTC4h 50m
2026-07-13 CPA2084 HKG → ANC Jul 13, 08:20 UTCJul 13, 17:50 UTC9h 30m
2026-07-12 CPA081 - Jul 12, 19:35 UTCJul 13, 05:15 UTC9h 40m
2026-07-12 CPA081 ORD → ANC Jul 12, 12:35 UTCJul 12, 18:15 UTC5h 40m
2026-07-12 CPA080 - Jul 12, 04:01 UTCJul 12, 09:30 UTC5h 30m
2026-07-11 CPA080 - Jul 11, 16:40 UTCJul 12, 01:30 UTC8h 50m
2026-07-11 CPA080 - Jul 11, 15:55 UTCJul 11, 16:10 UTC15m
2026-07-11 CPA038 ZGN → HKG Jul 11, 10:50 UTCJul 11, 11:20 UTC30m
2026-07-11 CPA038 - Jul 11, 00:45 UTCJul 11, 04:05 UTC3h 20m
2026-07-10 CPA038 - Jul 10, 21:00 UTCJul 10, 22:25 UTC1h 25m
2026-07-10 CPA037 - Jul 10, 08:20 UTCJul 10, 18:05 UTC9h 45m
2026-07-10 CPA037 - Jul 10, 06:50 UTCJul 10, 07:00 UTC10m
2026-07-10 CPA037 - Jul 10, 01:20 UTCJul 10, 02:45 UTC1h 25m
2026-07-09 CPA037 - Jul 9, 23:40 UTCJul 9, 23:55 UTC15m
2026-07-09 CPA035 ICN → HKG Jul 9, 13:45 UTCJul 9, 16:50 UTC3h 5m
2026-07-09 CPA035 KIX → ICN Jul 9, 10:00 UTCJul 9, 11:20 UTC1h 20m
2026-07-09 CPA036 HKG → KIX Jul 9, 04:15 UTCJul 9, 07:40 UTC3h 25m
2026-07-09 CPA2061 - Jul 9, 00:40 UTCJul 9, 01:10 UTC30m
2026-07-08 CPA2062 - Jul 8, 17:55 UTCJul 8, 18:10 UTC15m
2026-07-08 CPA3036 HKG → ICN Jul 8, 14:55 UTCJul 8, 15:25 UTC30m
2026-07-08 CPA3037 ICN → KIX Jul 8, 10:25 UTCJul 8, 10:45 UTC20m
2026-07-08 CPA3037 ICN → KIX Jul 8, 09:35 UTCJul 8, 09:45 UTC10m
2026-07-07 CPA028 - Jul 7, 21:15 UTCJul 7, 21:30 UTC15m
2026-07-07 CPA028 - Jul 7, 13:10 UTCJul 7, 20:25 UTC7h 15m
2026-07-07 CPA028 MEL → BNE Jul 7, 09:15 UTCJul 7, 11:00 UTC1h 45m
2026-07-07 CPA028 SYD → MEL Jul 7, 06:10 UTCJul 7, 07:20 UTC1h 10m
2026-07-06 CPA2023 - Jul 6, 21:00 UTCJul 7, 04:05 UTC7h 5m
2026-07-06 CPA2023 - Jul 6, 20:00 UTCJul 6, 20:20 UTC20m
2026-07-06 CPA3128 - Jul 6, 14:40 UTCJul 6, 15:05 UTC25m
2026-07-06 CPA3128 - Jul 6, 06:10 UTCJul 6, 13:50 UTC7h 40m
2026-07-06 CPA3128 SYD → MEL Jul 6, 02:30 UTCJul 6, 03:35 UTC1h 5m
2026-07-05 CPA3129 HKG → SYD Jul 5, 15:20 UTCJul 5, 23:45 UTC8h 25m
2026-07-05 CPA064 FRA → AMS Jul 5, 06:55 UTCJul 5, 07:40 UTC45m
2026-07-04 CPA064 FRA → AMS Jul 4, 20:15 UTCJul 5, 00:05 UTC3h 50m
2026-07-04 CPA064 FRA → AMS Jul 4, 17:10 UTCJul 4, 18:00 UTC50m
2026-07-04 CPA061 BOM → FRA Jul 4, 06:05 UTCJul 4, 11:30 UTC5h 25m
2026-07-04 CPA061 BOM → FRA Jul 4, 04:35 UTCJul 4, 04:45 UTC10m
2026-07-03 CPA061 BOM → FRA Jul 3, 22:40 UTCJul 4, 02:40 UTC4h 0m
2026-07-03 CPA061 BOM → FRA Jul 3, 21:45 UTCJul 3, 22:00 UTC15m
2026-07-03 CPA3275 - Jul 3, 17:05 UTCJul 3, 17:40 UTC35m
2026-07-03 CPA3275 - Jul 3, 06:35 UTCJul 3, 16:35 UTC10h 0m
2026-07-02 CPA3275 - Jul 2, 22:55 UTCJul 3, 05:10 UTC6h 15m
2026-07-02 CPA3170 - Jul 2, 18:40 UTCJul 2, 20:55 UTC2h 15m
2026-07-02 CPA3170 - Jul 2, 08:05 UTCJul 2, 15:30 UTC7h 25m
2026-07-01 CPA3170 HKG → ANC Jul 1, 21:30 UTCJul 2, 06:51 UTC9h 21m
2026-07-01 CPA3409 - Jul 1, 17:20 UTCJul 1, 17:40 UTC20m
2026-07-01 CPA3409 - Jul 1, 07:20 UTCJul 1, 16:50 UTC9h 30m
2026-06-30 CPA3409 - Jun 30, 22:30 UTCJul 1, 05:50 UTC7h 20m
2026-06-30 CPA086 - Jun 30, 13:15 UTCJun 30, 19:05 UTC5h 50m

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-LJD page for operator, model, and routing details .

Mode-S 780A1C frequently asked

What is Mode-S code 780A1C?
780A1C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LJD.
Where is Mode-S 780A1C registered?
Mode-S code 780A1C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A1C broadcasting right now?
Yes. Mode-S 780A1C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A1C, octal 36005034, decimal 7,866,908.
What flights does 780A1C operate?
Mode-S 780A1C has broadcast 20 distinct callsigns, including CPA037, CPA072, CPA097, CPA090, CPA014.