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 15h ago
Flights observed
162
Distinct callsigns
20
Country
CN
Last broadcast
15h 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
CPA312 Cathay Pacific 7 2026-05-29
CPA778 Cathay Pacific 6 2026-04-29
CPA347 Cathay Pacific 6 2026-05-30
CPA998 Cathay Pacific 5 2026-05-22
CPA776 Cathay Pacific 5 2026-05-12
CPA773 Cathay Pacific 5 2026-04-29
CPA655 Cathay Pacific 5 2026-05-25
CPA600 Cathay Pacific 5 2026-05-25
CPA997 Cathay Pacific 4 2026-05-23
CPA783 Cathay Pacific 4 2026-05-26
CPA782 Cathay Pacific 4 2026-05-26
CPA780 Cathay Pacific 4 2026-05-15
CPA658 Cathay Pacific 4 2026-05-02
CPA489 Cathay Pacific 4 2026-05-25
CPA777 Cathay Pacific 3 2026-05-12
CPA629 Cathay Pacific 3 2026-05-14
CPA995 Cathay Pacific 2 2026-05-06
CPA991 Cathay Pacific 2 2026-05-23
CPA990 Cathay Pacific 2 2026-05-23
CPA954 Cathay Pacific 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CPA621 HKG → PEN May 30, 07:50 UTCMay 30, 08:05 UTC15m
2026-05-30 CPA347 PEK → HKG May 30, 04:45 UTCMay 30, 05:15 UTC30m
2026-05-29 CPA312 HKG → PEK May 29, 15:55 UTCMay 29, 16:10 UTC15m
2026-05-29 CPA954 HKG → TAO May 29, 03:05 UTCMay 29, 10:30 UTC7h 25m
2026-05-28 CPA963 HGH → HKG May 28, 13:55 UTCMay 28, 14:10 UTC15m
2026-05-28 CPA962 HKG → HGH May 28, 08:45 UTCMay 28, 09:00 UTC15m
2026-05-28 CPA948 CEB → HKG May 28, 06:25 UTCMay 28, 06:45 UTC20m
2026-05-28 CPA921 HKG → CEB May 28, 00:15 UTCMay 28, 05:35 UTC5h 20m
2026-05-27 CPA704 BKK → HKG May 27, 14:30 UTCMay 27, 14:45 UTC15m
2026-05-27 CPA704 BKK → HKG May 27, 12:20 UTCMay 27, 13:00 UTC40m
2026-05-27 CPA701 HKG → BKK May 27, 10:00 UTCMay 27, 10:40 UTC40m
2026-05-27 CPA701 HKG → BKK May 27, 08:20 UTCMay 27, 08:35 UTC15m
2026-05-27 CPA921 HKG → CEB May 27, 00:30 UTCMay 27, 06:40 UTC6h 10m
2026-05-26 CPA782 DPS → HKG May 26, 15:14 UTCMay 26, 15:35 UTC20m
2026-05-26 CPA783 HKG → DPS May 26, 04:54 UTCMay 26, 13:24 UTC8h 30m
2026-05-26 CPA710 SIN → HKG May 26, 02:39 UTCMay 26, 02:55 UTC15m
2026-05-25 CPA659 HKG → SIN May 25, 18:10 UTCMay 25, 21:24 UTC3h 14m
2026-05-25 CPA600 PNH → HKG May 25, 13:45 UTCMay 25, 14:05 UTC20m
2026-05-25 CPA655 HKG → PNH May 25, 07:55 UTCMay 25, 08:10 UTC15m
2026-05-25 CPA489 TPE → HKG May 25, 04:40 UTCMay 25, 04:55 UTC15m
2026-05-25 CPA489 TPE → HKG May 25, 03:40 UTCMay 25, 04:05 UTC25m
2026-05-24 CPA654 BKK → HKG May 24, 10:55 UTCMay 24, 11:15 UTC20m
2026-05-24 CPA654 BKK → HKG May 24, 08:45 UTCMay 24, 09:25 UTC40m
2026-05-24 CPA653 HKG → BKK May 24, 06:20 UTCMay 24, 07:00 UTC40m
2026-05-24 CPA653 HKG → BKK May 24, 04:45 UTCMay 24, 05:00 UTC15m
2026-05-23 CPA991 FOC → HKG May 23, 13:45 UTCMay 23, 14:10 UTC25m
2026-05-23 CPA990 HKG → FOC May 23, 10:00 UTCMay 23, 10:15 UTC15m
2026-05-23 CPA997 URC → HKG May 23, 07:30 UTCMay 23, 08:05 UTC35m
2026-05-22 CPA998 HKG → URC May 22, 17:40 UTCMay 22, 17:55 UTC15m
2026-05-22 CPA991 FOC → HKG May 22, 14:00 UTCMay 22, 14:10 UTC10m
2026-05-22 CPA990 HKG → FOC May 22, 10:15 UTCMay 22, 10:30 UTC15m
2026-05-22 CPA937 WUH → HKG May 22, 05:35 UTCMay 22, 06:15 UTC40m
2026-05-22 CPA924 HKG → WUH May 22, 01:20 UTCMay 22, 01:35 UTC15m
2026-05-21 CPA369 PVG → HKG May 21, 07:00 UTCMay 21, 12:05 UTC5h 5m
2026-05-21 CPA360 HKG → PVG May 21, 06:05 UTCMay 21, 06:20 UTC15m
2026-05-20 CPA345 PEK → HKG May 20, 23:40 UTCMay 21, 02:40 UTC3h 0m
2026-05-20 CPA344 HKG → PEK May 20, 13:55 UTCMay 20, 14:05 UTC10m
2026-05-20 CPA344 HKG → PEK May 20, 11:20 UTCMay 20, 11:40 UTC20m
2026-05-20 CPA958 HKG → HGH May 20, 00:05 UTCMay 20, 05:55 UTC5h 51m
2026-05-19 CPA782 DPS → HKG May 19, 15:15 UTCMay 19, 15:30 UTC15m
2026-05-19 CPA783 HKG → DPS May 19, 04:55 UTCMay 19, 13:10 UTC8h 15m
2026-05-18 CPA337 PEK → HKG May 18, 12:00 UTCMay 18, 15:00 UTC3h 0m
2026-05-18 CPA336 HKG → PEK May 18, 07:15 UTCMay 18, 07:35 UTC20m
2026-05-15 CPA780 SUB → HKG May 15, 05:30 UTCMay 15, 05:50 UTC20m
2026-05-14 CPA629 HKG → SUB May 14, 09:00 UTCMay 15, 03:30 UTC18h 30m
2026-05-14 CPA629 HKG → SUB May 14, 06:55 UTCMay 15, 03:30 UTC20h 35m
2026-05-14 CPA503 KIX → HKG May 14, 04:35 UTCMay 14, 04:51 UTC15m
2026-05-14 CPA503 KIX → HKG May 14, 01:10 UTCMay 14, 03:55 UTC2h 45m
2026-05-13 CPA502 HKG → KIX May 13, 08:45 UTCMay 13, 11:55 UTC3h 10m
2026-05-13 CPA608 PNH → HKG May 13, 06:50 UTCMay 13, 07:10 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-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 15h 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 CPA312, CPA778, CPA347, CPA998, CPA776.