Apparatus

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sensors Mode-S transponder

780AA8

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LJN · BOEING 747-8

Hex
780AA8
Octal
36005250
Decimal
7,867,048
Country
CN
Tail
B-LJN
Type
B748
Transponder active on ground
Flights observed
316
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S 780AA8.

Country allocation

The ICAO 24-bit address 780AA8 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
CPA097 Cathay Pacific 15 2026-07-26
CPA072 - 14 2026-06-28
CPA008 - 12 2026-07-13
CPA005 - 11 2026-05-27
CPA077 - 10 2026-06-29
CPA3283 Cathay Pacific 9 2026-04-16
CPA3174 Cathay Pacific 9 2026-04-16
CPA3027 Cathay Pacific 9 2026-05-17
CPA028 - 9 2026-07-14
CPA096 Cathay Pacific 8 2026-07-25
CPA087 - 8 2026-07-05
CPA085 - 8 2026-07-03
CPA007 - 8 2026-07-12
CPA3298 - 7 2026-07-02
CPA2014 Cathay Pacific 7 2026-07-25
CPA3291 - 6 2026-06-23
CPA3290 Cathay Pacific 6 2026-06-22
CPA3128 Cathay Pacific 6 2026-07-20
CPA2090 Cathay Pacific 6 2026-05-20
CPA086 - 6 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA097 LAX → HKG Jul 26, 14:15 UTCJul 26, 21:35 UTC7h 20m
2026-07-26 CPA097 LAX → HKG Jul 26, 00:30 UTCJul 26, 10:05 UTC9h 36m
2026-07-25 CPA096 ANC → HKG Jul 25, 15:10 UTCJul 25, 21:25 UTC6h 15m
2026-07-25 CPA096 ANC → HKG Jul 25, 04:30 UTCJul 25, 13:50 UTC9h 20m
2026-07-25 CPA2014 CDG → HKG Jul 25, 00:10 UTCJul 25, 00:30 UTC20m
2026-07-24 CPA2014 CDG → HKG Jul 24, 13:25 UTCJul 24, 17:15 UTC3h 50m
2026-07-23 CPA2014 CDG → HKG Jul 23, 14:25 UTCJul 23, 19:45 UTC5h 20m
2026-07-23 CPA2014 CDG → HKG Jul 23, 10:25 UTCJul 23, 11:10 UTC45m
2026-07-22 CPA037 MXP → HKG Jul 22, 22:50 UTCJul 23, 07:50 UTC9h 0m
2026-07-22 CPA037 MXP → HKG Jul 22, 15:50 UTCJul 22, 20:45 UTC4h 55m
2026-07-21 CPA3295 - Jul 21, 19:10 UTCJul 21, 22:50 UTC3h 40m
2026-07-21 CPA3286 ANC → JFK Jul 21, 09:35 UTCJul 21, 16:00 UTC6h 25m
2026-07-20 CPA3286 ANC → JFK Jul 20, 22:35 UTCJul 21, 07:50 UTC9h 14m
2026-07-20 CPA3128 MEL → HKG Jul 20, 14:45 UTCJul 20, 15:10 UTC25m
2026-07-20 CPA3128 MEL → HKG Jul 20, 06:15 UTCJul 20, 14:00 UTC7h 45m
2026-07-20 CPA3128 MEL → HKG Jul 20, 02:10 UTCJul 20, 03:25 UTC1h 15m
2026-07-19 CPA3129 MEL → HKG Jul 19, 15:25 UTCJul 19, 23:55 UTC8h 30m
2026-07-19 CPA064 FRA → AMS Jul 19, 07:40 UTCJul 19, 08:10 UTC30m
2026-07-18 CPA064 FRA → AMS Jul 18, 20:45 UTCJul 19, 00:40 UTC3h 55m
2026-07-18 CPA064 FRA → AMS Jul 18, 18:00 UTCJul 18, 18:45 UTC45m
2026-07-18 CPA061 BOM → FRA Jul 18, 04:45 UTCJul 18, 14:35 UTC9h 50m
2026-07-18 CPA061 BOM → FRA Jul 18, 02:09 UTCJul 18, 02:29 UTC20m
2026-07-17 CPA061 BOM → FRA Jul 17, 23:39 UTCJul 18, 00:55 UTC1h 15m
2026-07-17 CPA061 BOM → FRA Jul 17, 21:44 UTCJul 17, 22:00 UTC15m
2026-07-17 CPA056D HKG → HKG Jul 17, 11:10 UTCJul 17, 18:00 UTC6h 50m
2026-07-16 CPA2093 YYZ → HKG Jul 16, 16:19 UTCJul 17, 07:25 UTC15h 5m
2026-07-16 CPA2093 ORD → YYZ Jul 16, 13:10 UTCJul 16, 14:10 UTC1h 0m
2026-07-16 CPA090 - Jul 16, 04:40 UTCJul 16, 10:00 UTC5h 20m
2026-07-15 CPA090 - Jul 15, 17:40 UTCJul 16, 03:20 UTC9h 40m
2026-07-14 CPA028 BNE → HKG Jul 14, 10:50 UTCJul 14, 19:10 UTC8h 20m
2026-07-14 CPA028 MEL → BNE Jul 14, 07:05 UTCJul 14, 08:55 UTC1h 50m
2026-07-14 CPA028 SYD → MEL Jul 14, 03:40 UTCJul 14, 04:50 UTC1h 10m
2026-07-13 CPA2023 - Jul 13, 18:20 UTCJul 14, 01:40 UTC7h 20m
2026-07-13 CPA2023 - Jul 13, 17:20 UTCJul 13, 17:35 UTC15m
2026-07-13 CPA008 - Jul 13, 08:40 UTCJul 13, 09:05 UTC25m
2026-07-12 CPA008 - Jul 12, 21:55 UTCJul 13, 00:35 UTC2h 40m
2026-07-12 CPA008 - Jul 12, 19:01 UTCJul 12, 19:40 UTC40m
2026-07-12 CPA007 - Jul 12, 06:10 UTCJul 12, 15:40 UTC9h 30m
2026-07-12 CPA007 - Jul 12, 04:45 UTCJul 12, 05:05 UTC20m
2026-07-11 CPA007 - Jul 11, 23:05 UTCJul 12, 01:50 UTC2h 45m
2026-07-11 CPA007 - Jul 11, 21:05 UTCJul 11, 21:20 UTC15m
2026-07-10 CPA087D - Jul 10, 12:30 UTCJul 10, 22:25 UTC9h 55m
2026-07-10 CPA087D - Jul 10, 05:40 UTCJul 10, 10:50 UTC5h 10m
2026-07-10 CPA087D - Jul 10, 03:50 UTCJul 10, 04:00 UTC10m
2026-07-09 CPA086D - Jul 9, 16:05 UTCJul 9, 22:00 UTC5h 55m
2026-07-09 CPA086D HKG → ANC Jul 9, 04:55 UTCJul 9, 14:40 UTC9h 45m
2026-07-08 CPA3253 - Jul 8, 09:25 UTCJul 8, 09:45 UTC20m
2026-07-08 CPA050D - Jul 8, 01:50 UTCJul 8, 08:50 UTC7h 0m
2026-07-07 CPA2083 ANC → HKG Jul 7, 10:55 UTCJul 7, 20:40 UTC9h 45m
2026-07-07 CPA2083 PDX → ANC Jul 7, 06:35 UTCJul 7, 09:35 UTC3h 0m

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

Mode-S 780AA8 frequently asked

What is Mode-S code 780AA8?
780AA8 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LJN.
Where is Mode-S 780AA8 registered?
Mode-S code 780AA8 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AA8 broadcasting right now?
Mode-S 780AA8 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AA8, octal 36005250, decimal 7,867,048.
What flights does 780AA8 operate?
Mode-S 780AA8 has broadcast 20 distinct callsigns, including CPA097, CPA072, CPA008, CPA005, CPA077.