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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
Broadcasting now · callsign CPA423 · 4,525 ft
Flights observed
353
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 18:20 UTC

Current position

7801CB is currently broadcasting. Map zoomed to live position.

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 - 15 2026-07-16
CPA312 - 13 2026-07-15
CPA629 - 10 2026-07-17
CPA503 - 10 2026-06-19
CPA782 Cathay Pacific 9 2026-07-22
CPA780 Cathay Pacific 9 2026-07-18
CPA783 Cathay Pacific 8 2026-07-22
CPA655 - 8 2026-06-26
CPA600 Cathay Pacific 8 2026-06-26
CPA998 Cathay Pacific 7 2026-07-26
CPA710 - 7 2026-06-30
CPA651 - 7 2026-07-20
CPA778 Cathay Pacific 6 2026-04-29
CPA659 - 6 2026-06-29
CPA658 Cathay Pacific 6 2026-06-02
CPA632 Cathay Pacific 6 2026-07-21
CPA502 - 6 2026-06-18
CPA495 Cathay Pacific 6 2026-07-21
CPA337 - 6 2026-07-18
CPA336 - 6 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA998 HKG → URC Jul 26, 18:05 UTCJul 26, 18:20 UTC15m
2026-07-26 CPA961 HGH → HKG Jul 26, 10:50 UTCJul 26, 11:05 UTC15m
2026-07-26 CPA961 HGH → HKG Jul 26, 10:05 UTCJul 26, 10:20 UTC15m
2026-07-25 CPA964 HKG → HGH Jul 25, 13:25 UTCJul 25, 14:35 UTC1h 10m
2026-07-25 CPA770 HKT → HKG Jul 25, 09:00 UTCJul 25, 09:10 UTC10m
2026-07-25 CPA771 HKG → HKT Jul 25, 01:10 UTCJul 25, 06:35 UTC5h 25m
2026-07-25 CPA771 HKG → HKT Jul 25, 00:25 UTCJul 25, 00:40 UTC15m
2026-07-24 CPA724 KUL → HKG Jul 24, 14:10 UTCJul 24, 14:25 UTC15m
2026-07-24 CPA724 KUL → HKG Jul 24, 10:45 UTCJul 24, 11:15 UTC30m
2026-07-24 CPA725 HKG → KUL Jul 24, 08:30 UTCJul 24, 09:10 UTC40m
2026-07-24 CPA725 HKG → KUL Jul 24, 05:40 UTCJul 24, 05:55 UTC15m
2026-07-24 CPA597 KIX → HKG Jul 24, 00:15 UTCJul 24, 03:45 UTC3h 30m
2026-07-23 CPA566 HKG → KIX Jul 23, 18:15 UTCJul 23, 21:25 UTC3h 10m
2026-07-23 CPA902 MNL → HKG Jul 23, 15:05 UTCJul 23, 16:40 UTC1h 35m
2026-07-23 CPA903 HKG → MNL Jul 23, 11:10 UTCJul 23, 13:00 UTC1h 50m
2026-07-23 CPA634 - Jul 23, 09:15 UTCJul 23, 09:30 UTC15m
2026-07-23 CPA634 - Jul 23, 05:55 UTCJul 23, 06:05 UTC10m
2026-07-23 CPA633 HKG → PEN Jul 23, 04:00 UTCJul 23, 04:15 UTC15m
2026-07-23 CPA633 HKG → PEN Jul 23, 01:05 UTCJul 23, 01:20 UTC15m
2026-07-22 CPA782 DPS → HKG Jul 22, 15:40 UTCJul 22, 16:00 UTC20m
2026-07-22 CPA782 DPS → HKG Jul 22, 13:10 UTCJul 22, 13:45 UTC35m
2026-07-22 CPA783 HKG → DPS Jul 22, 04:50 UTCJul 22, 05:10 UTC20m
2026-07-21 CPA413 ICN → HKG Jul 21, 23:30 UTCJul 22, 02:35 UTC3h 5m
2026-07-21 CPA430 HKG → ICN Jul 21, 09:55 UTCJul 21, 13:05 UTC3h 10m
2026-07-21 CPA495 TPE → HKG Jul 21, 05:35 UTCJul 21, 06:55 UTC1h 20m
2026-07-21 CPA494 HKG → TPE Jul 21, 02:25 UTCJul 21, 03:55 UTC1h 30m
2026-07-21 CPA632 MAA → HKG Jul 21, 00:35 UTCJul 21, 00:55 UTC20m
2026-07-20 CPA632 MAA → HKG Jul 20, 22:15 UTCJul 20, 22:55 UTC40m
2026-07-20 CPA651 - Jul 20, 17:35 UTCJul 20, 17:55 UTC20m
2026-07-20 CPA651 - Jul 20, 13:15 UTCJul 20, 16:10 UTC2h 55m
2026-07-20 CPA951 TAO → HKG Jul 20, 04:00 UTCJul 20, 11:05 UTC7h 5m
2026-07-20 CPA965 - Jul 20, 01:20 UTCJul 20, 02:10 UTC50m
2026-07-19 CPA964 HKG → HGH Jul 19, 12:35 UTCJul 19, 14:00 UTC1h 25m
2026-07-19 CPA997 URC → HKG Jul 19, 07:20 UTCJul 19, 07:45 UTC25m
2026-07-18 CPA998 - Jul 18, 17:30 UTCJul 18, 17:50 UTC20m
2026-07-18 CPA337 - Jul 18, 13:05 UTCJul 18, 16:05 UTC3h 0m
2026-07-18 CPA336 - Jul 18, 10:35 UTCJul 18, 10:50 UTC15m
2026-07-18 CPA336 - Jul 18, 08:05 UTCJul 18, 08:25 UTC20m
2026-07-18 CPA780 SUB → HKG Jul 18, 05:15 UTCJul 18, 05:35 UTC20m
2026-07-17 CPA629 - Jul 17, 09:40 UTCJul 18, 03:25 UTC17h 46m
2026-07-17 CPA629 - Jul 17, 07:35 UTCJul 18, 03:25 UTC19h 51m
2026-07-16 CPA337 - Jul 16, 14:29 UTCJul 16, 14:55 UTC25m
2026-07-16 CPA337 - Jul 16, 12:05 UTCJul 16, 12:25 UTC20m
2026-07-16 CPA336 - Jul 16, 07:35 UTCJul 16, 07:50 UTC15m
2026-07-16 CPA347 - Jul 16, 05:00 UTCJul 16, 05:40 UTC40m
2026-07-16 CPA347 - Jul 16, 02:35 UTCJul 16, 02:55 UTC20m
2026-07-15 CPA312 - Jul 15, 10:20 UTCJul 15, 10:35 UTC15m
2026-07-15 CPA335 - Jul 15, 04:30 UTCJul 15, 07:40 UTC3h 10m
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

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?
Yes. Mode-S 7801CB is currently airborne.
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, CPA629, CPA503, CPA782.