Apparatus

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sensors Mode-S transponder

7802FE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-2423 · BOEING 747-400

Hex
7802FE
Octal
36001376
Decimal
7,865,086
Country
CN
Tail
B-2423
Type
B744
Broadcasting now · callsign CSS117 · 32,000 ft
Flights observed
112
Distinct callsigns
12
Country
CN
Last broadcast
Jul 26, 19:50 UTC

Current position

7802FE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7802FE 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 12 distinct

Callsign Airline Flights Last seen
CSS125 - 26 2026-05-24
CSS126 - 15 2026-05-24
CSS101 SF Airlines 13 2026-07-23
CSS102 SF Airlines 12 2026-07-24
CSS181 SF Airlines 11 2026-07-25
CSS182 SF Airlines 9 2026-07-26
CSS118 - 9 2026-07-22
CSS117 - 7 2026-07-21
CSS120 SF Airlines 3 2026-07-20
CSS105 - 3 2026-04-16
CSS111 SF Airlines 2 2026-07-19
CSS106 - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSS182 JFK → ANC Jul 26, 02:45 UTCJul 26, 19:50 UTC17h 6m
2026-07-25 CSS182 JFK → ANC Jul 25, 16:50 UTCJul 25, 23:45 UTC6h 55m
2026-07-25 CSS181 ANC → JFK Jul 25, 08:35 UTCJul 25, 14:45 UTC6h 10m
2026-07-24 CSS181 ANC → JFK Jul 24, 13:15 UTCJul 25, 06:55 UTC17h 40m
2026-07-24 CSS181 ANC → JFK Jul 24, 09:35 UTCJul 25, 06:55 UTC21h 20m
2026-07-24 CSS102 FRA → LAX Jul 24, 08:00 UTCJul 24, 23:35 UTC15h 35m
2026-07-23 CSS101 HGH → LAX Jul 23, 22:20 UTCJul 24, 04:30 UTC6h 10m
2026-07-22 CSS118 - Jul 22, 16:00 UTCJul 22, 18:45 UTC2h 45m
2026-07-21 CSS117 - Jul 21, 18:05 UTCJul 22, 12:55 UTC18h 50m
2026-07-21 CSS117 - Jul 21, 13:35 UTCJul 22, 12:55 UTC23h 20m
2026-07-21 CSS102 FRA → LAX Jul 21, 12:35 UTCJul 22, 11:30 UTC22h 55m
2026-07-21 CSS101 HGH → LAX Jul 21, 03:00 UTCJul 21, 09:20 UTC6h 20m
2026-07-20 CSS120 ALA → EHU Jul 20, 05:35 UTCJul 21, 03:40 UTC22h 4m
2026-07-20 CSS120 ALA → EHU Jul 20, 04:50 UTCJul 21, 03:30 UTC22h 39m
2026-07-19 CSS111 EHU → LGG Jul 19, 08:45 UTCJul 20, 01:20 UTC16h 35m
2026-05-24 CSS126 BUD → HKG May 24, 19:30 UTCMay 25, 10:10 UTC14h 40m
2026-05-24 CSS125 - May 24, 09:55 UTCMay 24, 16:00 UTC6h 5m
2026-05-23 CSS125 - May 23, 17:45 UTCMay 24, 16:00 UTC22h 15m
2026-05-23 CSS125 - May 23, 15:50 UTCMay 24, 15:30 UTC23h 40m
2026-05-23 CSS126 - May 23, 13:35 UTCMay 24, 13:30 UTC23h 55m
2026-05-23 CSS126 - May 23, 12:45 UTCMay 24, 10:40 UTC21h 55m
2026-05-23 CSS125 - May 23, 03:25 UTCMay 23, 09:10 UTC5h 45m
2026-05-22 CSS125 - May 22, 12:40 UTCMay 23, 09:10 UTC20h 29m
2026-05-22 CSS125 - May 22, 09:35 UTCMay 23, 09:10 UTC23h 34m
2026-05-22 CSS118 - May 22, 07:35 UTCMay 23, 05:05 UTC21h 29m
2026-05-22 CSS118 - May 22, 07:10 UTCMay 23, 05:05 UTC21h 54m
2026-05-21 CSS117 - May 21, 19:45 UTCMay 22, 02:50 UTC7h 5m
2026-05-20 CSS102 FRA → LAX May 20, 14:40 UTCMay 20, 20:30 UTC5h 50m
2026-05-20 CSS101 HGH → LAX May 20, 04:05 UTCMay 20, 10:30 UTC6h 26m
2026-05-18 CSS120 ALA → EHU May 18, 01:10 UTCMay 18, 03:35 UTC2h 25m
2026-05-17 CSS111 EHU → LGG May 17, 15:15 UTCMay 17, 21:55 UTC6h 40m
2026-05-16 CSS102 FRA → LAX May 16, 19:35 UTCMay 17, 18:10 UTC22h 35m
2026-05-16 CSS102 FRA → LAX May 16, 18:35 UTCMay 17, 16:10 UTC21h 35m
2026-05-16 CSS101 HGH → LAX May 16, 08:11 UTCMay 16, 14:35 UTC6h 25m
2026-05-15 CSS118 - May 15, 09:35 UTCMay 16, 08:55 UTC23h 20m
2026-05-15 CSS118 - May 15, 06:50 UTCMay 15, 13:20 UTC6h 30m
2026-05-14 CSS117 - May 14, 19:40 UTCMay 15, 02:30 UTC6h 50m
2026-05-12 CSS102 FRA → LAX May 12, 16:10 UTCMay 12, 18:25 UTC2h 15m
2026-05-12 CSS101 HGH → LAX May 12, 06:00 UTCMay 12, 12:40 UTC6h 40m
2026-05-10 CSS126 - May 10, 19:19 UTCMay 10, 21:25 UTC2h 5m
2026-05-10 CSS125 - May 10, 09:30 UTCMay 10, 15:39 UTC6h 10m
2026-05-09 CSS125 - May 9, 16:10 UTCMay 10, 15:29 UTC23h 20m
2026-05-09 CSS126 - May 9, 11:35 UTCMay 10, 10:19 UTC22h 45m
2026-05-09 CSS126 - May 9, 11:10 UTCMay 10, 09:30 UTC22h 20m
2026-05-09 CSS125 - May 9, 01:25 UTCMay 9, 07:55 UTC6h 30m
2026-05-08 CSS125 - May 8, 12:25 UTCMay 9, 07:55 UTC19h 30m
2026-05-08 CSS125 - May 8, 09:34 UTCMay 9, 07:55 UTC22h 20m
2026-05-08 CSS118 - May 8, 07:34 UTCMay 9, 07:30 UTC23h 55m
2026-05-08 CSS118 - May 8, 06:59 UTCMay 9, 05:15 UTC22h 15m
2026-05-07 CSS117 - May 7, 19:40 UTCMay 8, 02:59 UTC7h 19m

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-2423 page for operator, model, and routing details .

Mode-S 7802FE frequently asked

What is Mode-S code 7802FE?
7802FE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-2423.
Where is Mode-S 7802FE registered?
Mode-S code 7802FE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7802FE broadcasting right now?
Yes. Mode-S 7802FE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7802FE, octal 36001376, decimal 7,865,086.
What flights does 7802FE operate?
Mode-S 7802FE has broadcast 12 distinct callsigns, including CSS125, CSS126, CSS101, CSS102, CSS181.