sensors Mode-S transponder

780A4A

ICAO 24-bit transponder address · allocated to China

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

Hex
780A4A
Octal
36005112
Decimal
7,866,954
Country
CN
Tail
B-LAX
Type
A333
No current signal · last broadcast 2h ago
Flights observed
223
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 780A4A.

Country allocation

The ICAO 24-bit address 780A4A 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
CPA369 Cathay Pacific 11 2026-05-26
CPA673 Cathay Pacific 10 2026-05-19
CPA725 Cathay Pacific 9 2026-05-17
CPA710 Cathay Pacific 9 2026-05-16
CPA659 Cathay Pacific 9 2026-05-16
CPA724 Cathay Pacific 8 2026-05-17
CPA360 Cathay Pacific 8 2026-05-26
CPA335 Cathay Pacific 7 2026-05-25
CPA791 Cathay Pacific 6 2026-04-25
CPA759 Cathay Pacific 6 2026-05-18
CPA758 Cathay Pacific 6 2026-05-18
CPA711 Cathay Pacific 6 2026-05-27
CPA672 Cathay Pacific 6 2026-05-19
CPA611 Cathay Pacific 6 2026-05-18
CPA716 Cathay Pacific 5 2026-04-25
CPA658 Cathay Pacific 5 2026-05-28
CPA589 Cathay Pacific 5 2026-05-19
CPA334 Cathay Pacific 5 2026-05-20
CPA365 Cathay Pacific 4 2026-05-25
CPA777 Cathay Pacific 3 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CPA430 HKG → ICN May 30, 10:00 UTCMay 30, 11:30 UTC1h 30m
2026-05-30 CPA342 HKG → SHA May 30, 02:15 UTCMay 30, 07:35 UTC5h 20m
2026-05-29 CPA780 SUB → HKG May 29, 05:30 UTCMay 29, 05:45 UTC15m
2026-05-28 CPA780 SUB → HKG May 28, 09:40 UTCMay 29, 03:45 UTC18h 5m
2026-05-28 CPA629 HKG → SUB May 28, 07:35 UTCMay 29, 03:45 UTC20h 10m
2026-05-28 CPA658 SIN → HKG May 28, 05:30 UTCMay 28, 05:45 UTC15m
2026-05-28 CPA658 SIN → HKG May 28, 02:20 UTCMay 28, 02:45 UTC25m
2026-05-27 CPA711 HKG → SIN May 27, 12:05 UTCMay 27, 12:25 UTC20m
2026-05-27 CPA711 HKG → SIN May 27, 09:20 UTCMay 27, 09:40 UTC20m
2026-05-27 CPA608 PNH → HKG May 27, 06:44 UTCMay 27, 07:25 UTC41m
2026-05-27 CPA607 HKG → PNH May 27, 00:55 UTCMay 27, 01:09 UTC15m
2026-05-26 CPA369 PVG → HKG May 26, 11:54 UTCMay 26, 12:05 UTC10m
2026-05-26 CPA369 PVG → HKG May 26, 06:39 UTCMay 26, 11:24 UTC4h 45m
2026-05-26 CPA360 HKG → PVG May 26, 05:49 UTCMay 26, 06:04 UTC15m
2026-05-25 CPA365 PVG → HKG May 25, 11:20 UTCMay 26, 04:04 UTC16h 44m
2026-05-25 CPA364 HKG → PVG May 25, 10:00 UTCMay 25, 10:15 UTC15m
2026-05-25 CPA335 PEK → HKG May 25, 06:55 UTCMay 25, 07:35 UTC40m
2026-05-24 CPA369 PVG → HKG May 24, 11:45 UTCMay 24, 11:55 UTC10m
2026-05-24 CPA369 PVG → HKG May 24, 06:55 UTCMay 24, 10:55 UTC4h 0m
2026-05-24 CPA360 HKG → PVG May 24, 05:55 UTCMay 24, 06:10 UTC15m
2026-05-24 CPA597 KIX → HKG May 24, 03:30 UTCMay 24, 03:45 UTC15m
2026-05-24 CPA597 KIX → HKG May 24, 00:20 UTCMay 24, 02:55 UTC2h 35m
2026-05-23 CPA566 HKG → KIX May 23, 18:15 UTCMay 23, 21:30 UTC3h 15m
2026-05-23 CPA539 NGO → HKG May 23, 07:50 UTCMay 23, 11:15 UTC3h 25m
2026-05-23 CPA536 HKG → NGO May 23, 02:45 UTCMay 23, 06:00 UTC3h 15m
2026-05-22 CPA449 KHH → HKG May 22, 23:30 UTCMay 23, 00:30 UTC1h 0m
2026-05-22 CPA448 HKG → KHH May 22, 14:10 UTCMay 22, 15:10 UTC1h 0m
2026-05-22 CPA369 PVG → HKG May 22, 11:55 UTCMay 22, 12:20 UTC25m
2026-05-22 CPA369 PVG → HKG May 22, 06:50 UTCMay 22, 11:15 UTC4h 25m
2026-05-22 CPA360 HKG → PVG May 22, 05:55 UTCMay 22, 06:10 UTC15m
2026-05-22 CPA365 PVG → HKG May 22, 03:50 UTCMay 22, 04:00 UTC10m
2026-05-21 CPA364 HKG → PVG May 21, 09:55 UTCMay 22, 03:10 UTC17h 15m
2026-05-21 CPA335 PEK → HKG May 21, 07:15 UTCMay 21, 08:10 UTC55m
2026-05-21 CPA335 PEK → HKG May 21, 04:45 UTCMay 21, 04:55 UTC10m
2026-05-20 CPA334 HKG → PEK May 20, 23:50 UTCMay 21, 00:10 UTC20m
2026-05-20 CPA654 BKK → HKG May 20, 10:30 UTCMay 20, 10:55 UTC25m
2026-05-20 CPA654 BKK → HKG May 20, 08:25 UTCMay 20, 08:50 UTC25m
2026-05-20 CPA653 HKG → BKK May 20, 06:00 UTCMay 20, 06:40 UTC40m
2026-05-20 CPA653 HKG → BKK May 20, 04:10 UTCMay 20, 04:25 UTC15m
2026-05-19 CPA672 HYD → HKG May 19, 16:50 UTCMay 20, 02:20 UTC9h 30m
2026-05-19 CPA673 HKG → HYD May 19, 15:05 UTCMay 19, 15:15 UTC10m
2026-05-19 CPA589 FUK → HKG May 19, 10:50 UTCMay 19, 11:05 UTC15m
2026-05-19 CPA589 FUK → HKG May 19, 09:35 UTCMay 19, 10:10 UTC35m
2026-05-19 CPA589 FUK → HKG May 19, 08:10 UTCMay 19, 08:20 UTC10m
2026-05-19 CPA588 HKG → FUK May 19, 04:15 UTCMay 19, 04:45 UTC30m
2026-05-19 CPA588 HKG → FUK May 19, 03:20 UTCMay 19, 03:35 UTC15m
2026-05-19 CPA612 CMB → HKG May 19, 00:40 UTCMay 19, 00:45 UTC5m
2026-05-18 CPA611 HKG → CMB May 18, 14:45 UTCMay 18, 23:00 UTC8h 14m
2026-05-18 CPA611 HKG → CMB May 18, 12:55 UTCMay 18, 13:05 UTC10m
2026-05-18 CPA758 SIN → HKG May 18, 09:00 UTCMay 18, 09:15 UTC15m

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

Mode-S 780A4A frequently asked

What is Mode-S code 780A4A?
780A4A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LAX.
Where is Mode-S 780A4A registered?
Mode-S code 780A4A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A4A broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A4A, octal 36005112, decimal 7,866,954.
What flights does 780A4A operate?
Mode-S 780A4A has broadcast 20 distinct callsigns, including CPA369, CPA673, CPA725, CPA710, CPA659.