Apparatus

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sensors Mode-S transponder

7801CB

ICAO 24-bit transponder address · allocated to China

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

Hex
7801CB
Octal
36000713
Decimal
7,864,779
Country
CN
Tail
B-LAF
Type
A333
No current signal · last broadcast 2h ago
Flights observed
305
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7801CB.

Country allocation

The ICAO 24-bit address 7801CB 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
CPA347 - 13 2026-07-10
CPA312 - 12 2026-07-09
CPA503 - 10 2026-06-19
CPA780 - 8 2026-06-29
CPA655 - 8 2026-06-26
CPA629 - 8 2026-06-28
CPA600 Cathay Pacific 8 2026-06-26
CPA783 - 7 2026-07-13
CPA782 - 7 2026-07-13
CPA710 - 7 2026-06-30
CPA778 Cathay Pacific 6 2026-04-29
CPA659 - 6 2026-06-29
CPA658 Cathay Pacific 6 2026-06-02
CPA502 - 6 2026-06-18
CPA998 Cathay Pacific 5 2026-05-22
CPA776 Cathay Pacific 5 2026-05-12
CPA773 Cathay Pacific 5 2026-04-29
CPA651 Cathay Pacific 5 2026-06-21
CPA495 - 5 2026-07-09
CPA997 Cathay Pacific 4 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CPA334 - Jul 14, 23:50 UTCJul 15, 00:05 UTC15m
2026-07-14 CPA393 - Jul 14, 14:00 UTCJul 14, 14:30 UTC30m
2026-07-14 CPA393 - Jul 14, 11:35 UTCJul 14, 11:50 UTC15m
2026-07-14 CPA392 - Jul 14, 06:25 UTCJul 14, 06:40 UTC15m
2026-07-14 CPA509 NRT → HKG Jul 14, 00:55 UTCJul 14, 04:40 UTC3h 45m
2026-07-13 CPA524 HKG → NRT Jul 13, 18:15 UTCJul 13, 22:35 UTC4h 20m
2026-07-13 CPA782 - Jul 13, 15:35 UTCJul 13, 15:55 UTC20m
2026-07-13 CPA783 - Jul 13, 04:40 UTCJul 13, 13:45 UTC9h 5m
2026-07-13 CPA983 - Jul 13, 02:25 UTCJul 13, 02:55 UTC30m
2026-07-13 CPA982 - Jul 13, 00:05 UTCJul 13, 00:25 UTC20m
2026-07-12 CPA989 - Jul 12, 14:55 UTCJul 12, 15:30 UTC35m
2026-07-12 CPA988 - Jul 12, 12:30 UTCJul 12, 12:50 UTC20m
2026-07-12 CPA3969 - Jul 12, 05:40 UTCJul 12, 06:45 UTC1h 5m
2026-07-12 CPA3968 - Jul 12, 01:15 UTCJul 12, 01:50 UTC35m
2026-07-12 CPA3968 - Jul 12, 00:25 UTCJul 12, 00:40 UTC15m
2026-07-11 CPA770 - Jul 11, 08:30 UTCJul 11, 08:50 UTC20m
2026-07-11 CPA771 - Jul 11, 02:50 UTCJul 11, 06:35 UTC3h 45m
2026-07-11 CPA771 - Jul 11, 01:00 UTCJul 11, 01:15 UTC15m
2026-07-10 CPA337 - Jul 10, 12:40 UTCJul 10, 15:25 UTC2h 45m
2026-07-10 CPA336 - Jul 10, 07:30 UTCJul 10, 07:50 UTC20m
2026-07-10 CPA347 - Jul 10, 03:05 UTCJul 10, 05:55 UTC2h 50m
2026-07-09 CPA312 - Jul 9, 09:55 UTCJul 9, 10:15 UTC20m
2026-07-09 CPA495 TPE → HKG Jul 9, 05:35 UTCJul 9, 06:50 UTC1h 15m
2026-07-09 CPA494 HKG → TPE Jul 9, 02:40 UTCJul 9, 04:00 UTC1h 20m
2026-07-09 CPA612 - Jul 9, 00:20 UTCJul 9, 00:40 UTC20m
2026-07-08 CPA611 HKG → CMB Jul 8, 14:15 UTCJul 8, 22:45 UTC8h 30m
2026-07-08 CPA611 HKG → CMB Jul 8, 12:50 UTCJul 8, 13:05 UTC15m
2026-07-08 CPA335 - Jul 8, 04:40 UTCJul 8, 07:45 UTC3h 5m
2026-07-07 CPA334 HKG → PEK Jul 7, 23:45 UTCJul 8, 00:05 UTC20m
2026-06-30 CPA393 - Jun 30, 14:55 UTCJun 30, 15:25 UTC30m
2026-06-30 CPA393 - Jun 30, 12:25 UTCJun 30, 12:50 UTC25m
2026-06-30 CPA392 - Jun 30, 06:30 UTCJun 30, 06:50 UTC20m
2026-06-30 CPA710 - Jun 30, 02:55 UTCJun 30, 03:10 UTC15m
2026-06-29 CPA710 - Jun 29, 23:39 UTCJun 30, 00:09 UTC30m
2026-06-29 CPA659 - Jun 29, 18:44 UTCJun 29, 21:54 UTC3h 10m
2026-06-29 CPA979 - Jun 29, 13:00 UTCJun 29, 13:44 UTC45m
2026-06-29 CPA978 - Jun 29, 10:20 UTCJun 29, 10:29 UTC10m
2026-06-29 CPA780 - Jun 29, 07:15 UTCJun 29, 07:30 UTC15m
2026-06-28 CPA629 - Jun 28, 08:50 UTCJun 29, 05:24 UTC20h 35m
2026-06-28 CPA629 - Jun 28, 08:39 UTCJun 29, 05:24 UTC20h 45m
2026-06-28 CPA347 - Jun 28, 02:25 UTCJun 28, 05:24 UTC3h 0m
2026-06-27 CPA312 - Jun 27, 09:55 UTCJun 27, 10:14 UTC20m
2026-06-27 CPA766 - Jun 27, 07:30 UTCJun 27, 07:49 UTC20m
2026-06-27 CPA767 - Jun 27, 01:35 UTCJun 27, 02:04 UTC30m
2026-06-26 CPA600 PNH → HKG Jun 26, 13:55 UTCJun 26, 14:09 UTC15m
2026-06-26 CPA655 - Jun 26, 07:55 UTCJun 26, 08:10 UTC15m
2026-06-26 CPA740 - Jun 26, 05:35 UTCJun 26, 06:15 UTC40m
2026-06-26 CPA740 - Jun 26, 04:30 UTCJun 26, 04:55 UTC25m
2026-06-26 CPA741 - Jun 26, 01:10 UTCJun 26, 02:40 UTC1h 30m
2026-06-25 CPA979 - Jun 25, 15:50 UTCJun 25, 16:24 UTC35m

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

Mode-S 7801CB frequently asked

What is Mode-S code 7801CB?
7801CB is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LAF.
Where is Mode-S 7801CB registered?
Mode-S code 7801CB is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7801CB 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 7801CB, octal 36000713, decimal 7,864,779.
What flights does 7801CB operate?
Mode-S 7801CB has broadcast 20 distinct callsigns, including CPA347, CPA312, CPA503, CPA780, CPA655.