Apparatus

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sensors Mode-S transponder

7802FD

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2422 · BOEING 747-400

Hex
7802FD
Octal
36001375
Decimal
7,865,085
Country
CN
Tail
B-2422
Type
B744
No current signal · last broadcast 2h ago
Flights observed
220
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7802FD.

Country allocation

The ICAO 24-bit address 7802FD 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
CSS381 - 45 2026-07-16
CSS396 - 25 2026-07-16
CSS382 SF Airlines 20 2026-07-18
CSS186 - 20 2026-07-14
CSS185 - 18 2026-07-15
CSS335 - 11 2026-07-11
CSS219 - 10 2026-07-12
CSS332 SF Airlines 9 2026-06-07
CSS220 - 7 2026-07-12
CSS165 SF Airlines 7 2026-06-06
CSS181 SF Airlines 6 2026-04-15
CSS111 SF Airlines 6 2026-04-23
CSS336 - 5 2026-07-11
CSS182 SF Airlines 4 2026-04-15
CSS140 - 4 2026-05-14
CSS139 - 4 2026-05-13
CSS120 SF Airlines 4 2026-04-23
CSS306 - 2 2026-07-04
CSS305 - 2 2026-07-04
CSS170 - 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CSS382 LAX → SZX Jul 18, 02:25 UTCJul 18, 02:45 UTC20m
2026-07-17 CSS382 LAX → SZX Jul 17, 13:00 UTCJul 18, 00:25 UTC11h 25m
2026-07-16 CSS381 - Jul 16, 23:10 UTCJul 17, 10:20 UTC11h 10m
2026-07-16 CSS381 - Jul 16, 18:29 UTCJul 16, 18:44 UTC15m
2026-07-16 CSS396 - Jul 16, 13:05 UTCJul 16, 13:15 UTC10m
2026-07-16 CSS396 - Jul 16, 03:25 UTCJul 16, 11:05 UTC7h 40m
2026-07-15 CSS396 JFK → ANC Jul 15, 17:20 UTCJul 16, 00:50 UTC7h 30m
2026-07-15 CSS185 - Jul 15, 09:25 UTCJul 15, 15:25 UTC6h 0m
2026-07-14 CSS185 - Jul 14, 15:10 UTCJul 15, 07:05 UTC15h 54m
2026-07-14 CSS186 - Jul 14, 05:30 UTCJul 14, 23:45 UTC18h 14m
2026-07-13 CSS381 - Jul 13, 14:35 UTCJul 14, 01:50 UTC11h 15m
2026-07-13 CSS381 - Jul 13, 09:35 UTCJul 13, 09:50 UTC15m
2026-07-12 CSS220 - Jul 12, 21:45 UTCJul 13, 07:10 UTC9h 25m
2026-07-12 CSS219 - Jul 12, 17:35 UTCJul 12, 18:05 UTC30m
2026-07-12 CSS219 - Jul 12, 15:01 UTCJul 12, 15:10 UTC10m
2026-07-11 CSS336 - Jul 11, 22:01 UTCJul 11, 22:10 UTC10m
2026-07-11 CSS336 - Jul 11, 12:10 UTCJul 11, 20:00 UTC7h 50m
2026-07-11 CSS335 - Jul 11, 10:10 UTCJul 11, 10:25 UTC15m
2026-07-11 CSS382 - Jul 11, 04:40 UTCJul 11, 05:05 UTC25m
2026-07-10 CSS382 - Jul 10, 14:35 UTCJul 11, 02:40 UTC12h 5m
2026-07-10 CSS381 - Jul 10, 00:25 UTCJul 10, 11:15 UTC10h 50m
2026-07-09 CSS381 - Jul 9, 19:45 UTCJul 9, 19:55 UTC10m
2026-07-09 CSS396 - Jul 9, 06:05 UTCJul 9, 06:25 UTC20m
2026-07-08 CSS396 - Jul 8, 20:40 UTCJul 9, 04:10 UTC7h 30m
2026-07-08 CSS396 JFK → ANC Jul 8, 12:10 UTCJul 8, 19:05 UTC6h 55m
2026-07-08 CSS185 ANC → JFK Jul 8, 04:05 UTCJul 8, 10:30 UTC6h 25m
2026-07-07 CSS186 - Jul 7, 03:05 UTCJul 7, 18:35 UTC15h 30m
2026-07-06 CSS186 - Jul 6, 17:00 UTCJul 7, 05:05 UTC12h 5m
2026-07-06 CSS381 - Jul 6, 03:05 UTCJul 6, 13:25 UTC10h 20m
2026-07-05 CSS381 - Jul 5, 22:20 UTCJul 5, 22:35 UTC15m
2026-07-05 CSS220 - Jul 5, 10:45 UTCJul 5, 19:45 UTC9h 0m
2026-07-05 CSS219 - Jul 5, 06:05 UTCJul 5, 06:40 UTC35m
2026-07-05 CSS219 - Jul 5, 03:25 UTCJul 5, 03:35 UTC10m
2026-07-04 CSS306 - Jul 4, 22:30 UTCJul 4, 22:50 UTC20m
2026-07-04 CSS306 - Jul 4, 13:00 UTCJul 4, 17:00 UTC4h 0m
2026-07-04 CSS305 - Jul 4, 08:25 UTCJul 4, 09:20 UTC55m
2026-07-04 CSS305 - Jul 4, 05:40 UTCJul 4, 05:50 UTC10m
2026-07-04 CSS382 - Jul 4, 01:40 UTCJul 4, 02:00 UTC20m
2026-07-03 CSS382 - Jul 3, 11:00 UTCJul 3, 23:20 UTC12h 20m
2026-07-02 CSS381 - Jul 2, 21:40 UTCJul 3, 07:45 UTC10h 5m
2026-07-02 CSS381 - Jul 2, 16:55 UTCJul 2, 17:10 UTC15m
2026-07-02 CSS396 JFK → ANC Jul 2, 05:30 UTCJul 2, 06:00 UTC30m
2026-07-01 CSS396 JFK → ANC Jul 1, 19:40 UTCJul 1, 20:55 UTC1h 15m
2026-07-01 CSS396 JFK → ANC Jul 1, 11:05 UTCJul 1, 17:50 UTC6h 45m
2026-07-01 CSS185 LGG → LGG Jul 1, 02:50 UTCJul 1, 09:15 UTC6h 25m
2026-06-30 CSS185 LGG → LGG Jun 30, 17:20 UTCJul 1, 01:00 UTC7h 40m
2026-06-29 CSS186 - Jun 29, 13:00 UTCJun 30, 01:14 UTC12h 15m
2026-06-28 CSS381 - Jun 28, 23:39 UTCJun 29, 09:40 UTC10h 0m
2026-06-28 CSS381 - Jun 28, 19:09 UTCJun 28, 19:20 UTC10m
2026-06-28 CSS220 - Jun 28, 15:29 UTCJun 28, 15:55 UTC25m

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-2422 page for operator, model, and routing details .

Mode-S 7802FD frequently asked

What is Mode-S code 7802FD?
7802FD is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2422.
Where is Mode-S 7802FD registered?
Mode-S code 7802FD is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7802FD 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 7802FD, octal 36001375, decimal 7,865,085.
What flights does 7802FD operate?
Mode-S 7802FD has broadcast 20 distinct callsigns, including CSS381, CSS396, CSS382, CSS186, CSS185.