sensors Mode-S transponder

780A4B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LAZ · AIRBUS A-330-300

Hex
780A4B
Octal
36005113
Decimal
7,866,955
Country
CN
Tail
B-LAZ
Type
A333
No current signal · last broadcast 9h ago
Flights observed
334
Distinct callsigns
20
Country
CN
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 780A4B.

Country allocation

The ICAO 24-bit address 780A4B 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
CPA711 - 15 2026-07-14
CPA658 - 14 2026-07-09
CPA419 - 14 2026-07-13
CPA725 - 12 2026-06-18
CPA724 - 12 2026-06-18
CPA722 - 12 2026-06-27
CPA673 Cathay Pacific 10 2026-06-17
CPA629 - 10 2026-06-25
CPA418 - 10 2026-07-13
CPA723 - 9 2026-06-27
CPA672 - 8 2026-06-18
CPA413 - 8 2026-07-10
CPA780 - 7 2026-06-26
CPA509 - 7 2026-07-13
CPA503 - 7 2026-07-10
CPA473 - 6 2026-06-26
CPA667 Cathay Pacific 5 2026-05-25
CPA597 - 5 2026-07-06
CPA472 - 5 2026-06-26
CPA430 - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CPA711 - Jul 14, 12:15 UTCJul 14, 12:45 UTC30m
2026-07-14 CPA711 - Jul 14, 09:25 UTCJul 14, 09:45 UTC20m
2026-07-14 CPA495 TPE → HKG Jul 14, 06:25 UTCJul 14, 07:45 UTC1h 20m
2026-07-14 CPA494 - Jul 14, 03:20 UTCJul 14, 04:40 UTC1h 20m
2026-07-13 CPA419 ICN → HKG Jul 13, 11:45 UTCJul 13, 14:45 UTC3h 0m
2026-07-13 CPA418 HKG → ICN Jul 13, 06:40 UTCJul 13, 09:50 UTC3h 10m
2026-07-13 CPA509 - Jul 13, 00:45 UTCJul 13, 04:25 UTC3h 40m
2026-07-12 CPA524 HKG → NRT Jul 12, 17:40 UTCJul 12, 21:40 UTC4h 0m
2026-07-12 CPA776 - Jul 12, 11:55 UTCJul 12, 12:25 UTC30m
2026-07-12 CPA776 - Jul 12, 07:40 UTCJul 12, 09:10 UTC1h 30m
2026-07-12 CPA777 - Jul 12, 05:40 UTCJul 12, 05:55 UTC15m
2026-07-12 CPA777 - Jul 12, 01:30 UTCJul 12, 01:50 UTC20m
2026-07-11 CPA957 - Jul 11, 11:30 UTCJul 11, 12:05 UTC35m
2026-07-11 CPA952 - Jul 11, 05:01 UTCJul 11, 05:20 UTC20m
2026-07-10 CPA413 ICN → HKG Jul 10, 23:10 UTCJul 11, 02:05 UTC2h 55m
2026-07-10 CPA430 HKG → ICN Jul 10, 10:05 UTCJul 10, 13:10 UTC3h 5m
2026-07-10 CPA503 KIX → HKG Jul 10, 01:10 UTCJul 10, 04:35 UTC3h 25m
2026-07-09 CPA502 HKG → KIX Jul 9, 09:05 UTCJul 9, 12:35 UTC3h 30m
2026-07-09 CPA658 - Jul 9, 05:25 UTCJul 9, 05:45 UTC20m
2026-07-09 CPA658 - Jul 9, 02:10 UTCJul 9, 02:35 UTC25m
2026-07-08 CPA711 - Jul 8, 13:00 UTCJul 8, 13:30 UTC30m
2026-07-08 CPA711 - Jul 8, 10:15 UTCJul 8, 10:30 UTC15m
2026-07-08 CPA608 - Jul 8, 07:15 UTCJul 8, 07:25 UTC10m
2026-07-08 CPA607 - Jul 8, 01:25 UTCJul 8, 01:40 UTC15m
2026-07-07 CPA714 - Jul 7, 21:45 UTCJul 7, 22:10 UTC25m
2026-07-07 CPA714 - Jul 7, 18:40 UTCJul 7, 19:10 UTC30m
2026-07-07 CPA715 - Jul 7, 13:30 UTCJul 7, 16:40 UTC3h 10m
2026-07-07 CPA758 - Jul 7, 09:15 UTCJul 7, 09:45 UTC30m
2026-07-07 CPA758 - Jul 7, 06:05 UTCJul 7, 06:30 UTC25m
2026-07-07 CPA759 - Jul 7, 04:05 UTCJul 7, 04:35 UTC30m
2026-07-07 CPA759 - Jul 7, 01:25 UTCJul 7, 01:40 UTC15m
2026-07-06 CPA419 ICN → HKG Jul 6, 11:40 UTCJul 6, 14:45 UTC3h 5m
2026-07-06 CPA418 HKG → ICN Jul 6, 06:55 UTCJul 6, 10:10 UTC3h 15m
2026-07-06 CPA597 KIX → HKG Jul 6, 00:20 UTCJul 6, 03:50 UTC3h 30m
2026-07-05 CPA566 HKG → KIX Jul 5, 18:05 UTCJul 5, 21:20 UTC3h 15m
2026-07-05 CPA782 - Jul 5, 15:05 UTCJul 5, 15:30 UTC25m
2026-07-05 CPA783 - Jul 5, 05:00 UTCJul 5, 13:15 UTC8h 15m
2026-07-05 CPA622 - Jul 5, 02:45 UTCJul 5, 03:05 UTC20m
2026-07-04 CPA622 - Jul 4, 23:40 UTCJul 4, 23:50 UTC10m
2026-07-04 CPA621 - Jul 4, 11:25 UTCJul 4, 11:40 UTC15m
2026-07-04 CPA621 - Jul 4, 08:30 UTCJul 4, 08:50 UTC20m
2026-07-04 CPA509 - Jul 4, 04:40 UTCJul 4, 05:00 UTC20m
2026-07-04 CPA509 - Jul 4, 00:50 UTCJul 4, 04:00 UTC3h 10m
2026-07-03 CPA524 - Jul 3, 18:15 UTCJul 3, 22:10 UTC3h 55m
2026-07-03 CPA369 - Jul 3, 07:20 UTCJul 3, 16:10 UTC8h 50m
2026-07-03 CPA710 - Jul 3, 02:55 UTCJul 3, 03:15 UTC20m
2026-07-02 CPA710 - Jul 2, 23:45 UTCJul 3, 00:15 UTC30m
2026-07-02 CPA659 - Jul 2, 20:50 UTCJul 2, 21:20 UTC30m
2026-07-02 CPA659 - Jul 2, 18:10 UTCJul 2, 18:25 UTC15m
2026-07-02 CPA419 ICN → HKG Jul 2, 14:30 UTCJul 2, 14:50 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-LAZ page for operator, model, and routing details .

Mode-S 780A4B frequently asked

What is Mode-S code 780A4B?
780A4B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LAZ.
Where is Mode-S 780A4B registered?
Mode-S code 780A4B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A4B broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A4B, octal 36005113, decimal 7,866,955.
What flights does 780A4B operate?
Mode-S 780A4B has broadcast 20 distinct callsigns, including CPA711, CPA658, CPA419, CPA725, CPA724.