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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 Jul 26, 19:35 UTC
Flights observed
246
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:35 UTC

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 SF Airlines 47 2026-07-20
CSS396 SF Airlines 28 2026-07-23
CSS185 SF Airlines 22 2026-07-22
CSS186 - 21 2026-07-20
CSS382 SF Airlines 20 2026-07-18
CSS219 - 14 2026-07-25
CSS335 SF Airlines 13 2026-07-26
CSS220 - 12 2026-07-26
CSS332 SF Airlines 9 2026-06-07
CSS336 - 7 2026-07-18
CSS165 SF Airlines 7 2026-06-06
CSS181 SF Airlines 6 2026-04-15
CSS111 SF Airlines 6 2026-04-23
CSS182 SF Airlines 4 2026-04-15
CSS140 - 4 2026-05-14
CSS139 - 4 2026-05-13
CSS120 SF Airlines 4 2026-04-23
CSS383 SF Airlines 2 2026-07-24
CSS306 - 2 2026-07-04
CSS305 - 2 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSS335 SZX → MAA Jul 26, 17:25 UTCJul 26, 19:35 UTC2h 10m
2026-07-26 CSS220 - Jul 26, 11:05 UTCJul 26, 11:15 UTC10m
2026-07-25 CSS220 - Jul 25, 23:20 UTCJul 26, 10:25 UTC11h 6m
2026-07-25 CSS219 - Jul 25, 19:10 UTCJul 25, 19:30 UTC20m
2026-07-25 CSS219 - Jul 25, 16:25 UTCJul 25, 16:35 UTC10m
2026-07-24 CSS384 LAX → SZX Jul 24, 14:20 UTCJul 25, 01:45 UTC11h 25m
2026-07-24 CSS383 SZX → ANC Jul 24, 05:25 UTCJul 24, 09:50 UTC4h 25m
2026-07-23 CSS383 SZX → ANC Jul 23, 20:35 UTCJul 24, 03:50 UTC7h 15m
2026-07-23 CSS396 JFK → ANC Jul 23, 07:25 UTCJul 23, 07:45 UTC20m
2026-07-22 CSS396 JFK → ANC Jul 22, 21:05 UTCJul 23, 05:20 UTC8h 15m
2026-07-22 CSS396 JFK → ANC Jul 22, 12:35 UTCJul 22, 19:35 UTC7h 0m
2026-07-22 CSS185 LGG → LGG Jul 22, 02:55 UTCJul 22, 03:45 UTC50m
2026-07-21 CSS185 LGG → LGG Jul 21, 17:20 UTCJul 22, 00:30 UTC7h 10m
2026-07-21 CSS185 LGG → LGG Jul 21, 03:20 UTCJul 22, 00:30 UTC21h 10m
2026-07-21 CSS185 LGG → LGG Jul 21, 01:35 UTCJul 22, 00:30 UTC22h 55m
2026-07-20 CSS186 - Jul 20, 15:45 UTCJul 21, 03:25 UTC11h 39m
2026-07-20 CSS381 HGH → LAX Jul 20, 01:15 UTCJul 20, 12:15 UTC11h 0m
2026-07-19 CSS381 - Jul 19, 20:25 UTCJul 19, 20:40 UTC15m
2026-07-19 CSS220 - Jul 19, 16:55 UTCJul 19, 17:15 UTC20m
2026-07-19 CSS220 - Jul 19, 11:15 UTCJul 19, 16:00 UTC4h 45m
2026-07-19 CSS220 - Jul 19, 08:05 UTCJul 19, 08:20 UTC15m
2026-07-19 CSS219 - Jul 19, 03:35 UTCJul 19, 04:05 UTC30m
2026-07-19 CSS219 - Jul 19, 00:55 UTCJul 19, 01:05 UTC10m
2026-07-18 CSS336 - Jul 18, 20:00 UTCJul 18, 20:10 UTC10m
2026-07-18 CSS336 - Jul 18, 10:05 UTCJul 18, 18:05 UTC8h 0m
2026-07-18 CSS335 - Jul 18, 08:00 UTCJul 18, 08:15 UTC15m
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

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 Jul 26, 19:35 UTC.
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, CSS185, CSS186, CSS382.