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
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
317
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S 780A1C.

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
CPA015 Cathay Pacific 14 2026-07-21
CPA2087 - 12 2026-07-17
CPA072 - 12 2026-06-26
CPA3298 - 11 2026-07-21
CPA2086 - 10 2026-07-15
CPA097 Cathay Pacific 10 2026-06-11
CPA090 Cathay Pacific 10 2026-04-18
CPA085 Cathay Pacific 10 2026-07-22
CPA014 - 10 2026-06-29
CPA096 Cathay Pacific 9 2026-06-10
CPA081 Cathay Pacific 8 2026-07-20
CPA080 Cathay Pacific 8 2026-07-19
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
CPA3286 - 5 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA095 ANC → HKG Jul 26, 20:05 UTCJul 26, 20:40 UTC35m
2026-07-26 CPA095 ANC → HKG Jul 26, 05:35 UTCJul 26, 09:15 UTC3h 41m
2026-07-25 CPA094 HKG → JFK Jul 25, 20:05 UTCJul 26, 02:20 UTC6h 15m
2026-07-25 CPA094 HKG → JFK Jul 25, 09:20 UTCJul 25, 18:45 UTC9h 25m
2026-07-25 CPA2048 HAN → HKG Jul 25, 04:40 UTCJul 25, 05:20 UTC40m
2026-07-25 CPA2049 HKG → HAN Jul 25, 00:25 UTCJul 25, 00:50 UTC25m
2026-07-24 CPA2049 HKG → HAN Jul 24, 23:15 UTCJul 24, 23:25 UTC10m
2026-07-23 CPA3251 PVG → HKG Jul 23, 13:10 UTCJul 24, 04:35 UTC15h 25m
2026-07-22 CPA085 JFK → HKG Jul 22, 11:10 UTCJul 23, 01:50 UTC14h 40m
2026-07-21 CPA3298 - Jul 21, 21:30 UTCJul 22, 03:35 UTC6h 5m
2026-07-21 CPA3298 HKG → ANC Jul 21, 10:30 UTCJul 21, 19:40 UTC9h 10m
2026-07-21 CPA015 NRT → TPE Jul 21, 05:55 UTCJul 21, 07:10 UTC1h 15m
2026-07-21 CPA015 NRT → TPE Jul 21, 02:30 UTCJul 21, 02:55 UTC25m
2026-07-21 CPA015 NRT → TPE Jul 21, 00:00 UTCJul 21, 01:15 UTC1h 15m
2026-07-20 CPA006 HKG → NRT Jul 20, 17:25 UTCJul 20, 21:20 UTC3h 55m
2026-07-20 CPA081 ORD → HKG Jul 20, 01:50 UTCJul 20, 11:45 UTC9h 55m
2026-07-19 CPA081 ORD → HKG Jul 19, 23:25 UTCJul 20, 00:25 UTC1h 0m
2026-07-19 CPA081 ORD → HKG Jul 19, 18:45 UTCJul 19, 23:20 UTC4h 35m
2026-07-19 CPA080 ANC → ORD Jul 19, 10:20 UTCJul 19, 15:35 UTC5h 15m
2026-07-18 CPA080 ANC → ORD Jul 18, 22:55 UTCJul 19, 08:25 UTC9h 30m
2026-07-18 CPA015 NRT → TPE Jul 18, 06:20 UTCJul 18, 07:35 UTC1h 15m
2026-07-18 CPA015 NRT → TPE Jul 18, 03:30 UTCJul 18, 03:50 UTC20m
2026-07-18 CPA015 NRT → TPE Jul 18, 01:10 UTCJul 18, 02:14 UTC1h 5m
2026-07-17 CPA006 HKG → NRT Jul 17, 17:40 UTCJul 17, 21:39 UTC4h 0m
2026-07-17 CPA3259 HKG → HKG Jul 17, 06:20 UTCJul 17, 13:25 UTC7h 5m
2026-07-17 CPA2087 - Jul 17, 02:25 UTCJul 17, 02:39 UTC15m
2026-07-16 CPA2087 - Jul 16, 16:15 UTCJul 17, 01:45 UTC9h 30m
2026-07-16 CPA2087 MPB → ANC Jul 16, 04:55 UTCJul 16, 12:40 UTC7h 45m
2026-07-15 CPA2086 - Jul 15, 19:05 UTCJul 16, 02:15 UTC7h 10m
2026-07-15 CPA2086 HKG → ANC Jul 15, 08:05 UTCJul 15, 17:40 UTC9h 35m
2026-07-14 CPA2083 ANC → HKG Jul 14, 11:40 UTCJul 14, 21:55 UTC10h 15m
2026-07-14 CPA2083 PDX → ANC Jul 14, 06:40 UTCJul 14, 09:50 UTC3h 10m
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

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?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
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, CPA015, CPA2087, CPA072, CPA3298.