Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

39CF0F

ICAO 24-bit transponder address · allocated to France

Currently assigned to F-HTYP · AIRBUS A-350-900

Hex
39CF0F
Octal
16347417
Decimal
3,788,559
Country
FR
Tail
F-HTYP
Type
A359
Broadcasting now · callsign AFR012 · 43,000 ft
Flights observed
113
Distinct callsigns
20
Country
FR
Last broadcast
14m ago

Current position

39CF0F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 39CF0F falls within the block assigned to France (FR) by ICAO Annex 10, Volume III. Every aircraft registered in France 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
AFR174 Air France 10 2026-05-28
AFR407 Air France 9 2026-05-20
AFR173 Air France 9 2026-05-29
AFR406 Air France 7 2026-05-19
AFR435 Air France 6 2026-05-16
AFR431 Air France 6 2026-05-22
AFR754 Air France 4 2026-05-26
AFR191 Air France 4 2026-05-21
AFR096 - 4 2026-04-13
AFR874 Air France 3 2026-05-27
AFR871 Air France 3 2026-04-18
AFR868 Air France 3 2026-04-17
AFR722 Air France 3 2026-04-29
AFR53M Air France 3 2026-05-17
AFR52X Air France 3 2026-05-16
AFR430 Air France 3 2026-05-22
AFR093 Air France 3 2026-05-24
AFR092 Air France 3 2026-05-23
AFR491 Air France 2 2026-05-09
AFR436 Air France 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFR012 CDG → JFK May 29, 19:45 UTCMay 30, 01:45 UTC6h 0m
2026-05-29 AFR173 MEX → CDG May 29, 04:40 UTCMay 29, 14:30 UTC9h 50m
2026-05-28 AFR174 CDG → MEX May 28, 14:30 UTCMay 29, 01:25 UTC10h 55m
2026-05-27 AFR874 CDG → ZNZ May 27, 12:00 UTCMay 28, 06:55 UTC18h 55m
2026-05-27 AFR874 CDG → ZNZ May 27, 09:50 UTCMay 28, 06:55 UTC21h 5m
2026-05-27 AFR874 CDG → ZNZ May 27, 09:05 UTCMay 28, 06:55 UTC21h 50m
2026-05-26 AFR754 CDG → BZV May 26, 09:49 UTCMay 27, 04:59 UTC19h 10m
2026-05-26 AFR754 CDG → BZV May 26, 08:59 UTCMay 27, 04:59 UTC20h 0m
2026-05-25 AFR173 MEX → CDG May 25, 04:40 UTCMay 25, 14:40 UTC10h 0m
2026-05-25 AFR174 CDG → MEX May 25, 01:55 UTCMay 25, 02:10 UTC15m
2026-05-24 AFR174 CDG → MEX May 24, 14:15 UTCMay 24, 23:46 UTC9h 31m
2026-05-24 AFR093 MIA → CDG May 24, 02:45 UTCMay 24, 11:00 UTC8h 15m
2026-05-23 AFR092 CDG → MIA May 23, 14:50 UTCMay 24, 00:05 UTC9h 16m
2026-05-22 AFR431 SJO → CDG May 22, 21:50 UTCMay 23, 11:30 UTC13h 39m
2026-05-22 AFR430 CDG → SJO May 22, 12:05 UTCMay 23, 11:30 UTC23h 24m
2026-05-21 AFR191 BLR → CDG May 21, 21:05 UTCMay 22, 07:00 UTC9h 55m
2026-05-21 AFR194 CDG → BLR May 21, 08:45 UTCMay 21, 18:45 UTC10h 0m
2026-05-20 AFR407 SCL → CDG May 20, 16:30 UTCMay 21, 03:25 UTC10h 55m
2026-05-20 AFR407 SCL → CDG May 20, 14:40 UTCMay 20, 14:55 UTC15m
2026-05-19 AFR406 CDG → SCL May 19, 21:30 UTCMay 20, 09:30 UTC12h 1m
2026-05-19 AFR173 MEX → CDG May 19, 13:15 UTCMay 19, 14:40 UTC1h 25m
2026-05-19 AFR173 MEX → CDG May 19, 04:45 UTCMay 19, 09:40 UTC4h 55m
2026-05-18 AFR174 CDG → MEX May 18, 14:40 UTCMay 19, 01:45 UTC11h 4m
2026-05-17 AFR431 SJO → CDG May 17, 20:55 UTCMay 18, 11:15 UTC14h 20m
2026-05-17 AFR431 SJO → CDG May 17, 15:15 UTCMay 18, 11:15 UTC20h 0m
2026-05-17 AFR430 CDG → SJO May 17, 12:10 UTCMay 18, 11:15 UTC23h 5m
2026-05-17 AFR53M IAD → CDG May 17, 01:55 UTCMay 17, 08:45 UTC6h 50m
2026-05-16 AFR52X CDG → IAD May 16, 15:16 UTCMay 16, 23:05 UTC7h 50m
2026-05-16 AFR435 MEX → CDG May 16, 04:45 UTCMay 16, 12:31 UTC7h 46m
2026-05-16 AFR435 MEX → CDG May 16, 03:00 UTCMay 16, 03:15 UTC15m
2026-05-15 AFR436 CDG → BOG May 15, 13:55 UTCMay 15, 23:50 UTC9h 54m
2026-05-15 AFR53M IAD → CDG May 15, 01:45 UTCMay 15, 08:35 UTC6h 50m
2026-05-14 AFR52X CDG → IAD May 14, 15:20 UTCMay 14, 23:15 UTC7h 55m
2026-05-14 AFR093 MIA → CDG May 14, 03:55 UTCMay 14, 12:00 UTC8h 5m
2026-05-13 AFR092 CDG → MIA May 13, 16:00 UTCMay 14, 01:20 UTC9h 20m
2026-05-12 AFR435 MEX → CDG May 12, 21:40 UTCMay 13, 13:05 UTC15h 25m
2026-05-12 AFR435 MEX → CDG May 12, 14:10 UTCMay 13, 13:05 UTC22h 55m
2026-05-11 AFR579 CKY → CDG May 11, 16:20 UTCMay 12, 06:35 UTC14h 16m
2026-05-10 AFR578 CDG → CKY May 10, 16:10 UTCMay 11, 06:30 UTC14h 20m
2026-05-09 AFR491 CDG → PUJ May 9, 21:19 UTCMay 10, 13:10 UTC15h 50m
2026-05-09 AFR491 CDG → PUJ May 9, 14:00 UTCMay 10, 13:10 UTC23h 10m
2026-05-09 AFR53M IAD → CDG May 9, 01:55 UTCMay 9, 08:55 UTC7h 0m
2026-05-08 AFR52X CDG → IAD May 8, 15:20 UTCMay 8, 23:15 UTC7h 55m
2026-05-08 AFR093 MIA → CDG May 8, 03:24 UTCMay 8, 11:40 UTC8h 15m
2026-05-07 AFR092 CDG → MIA May 7, 15:20 UTCMay 8, 00:40 UTC9h 19m
2026-05-07 AFR431 SJO → CDG May 7, 04:05 UTCMay 7, 12:20 UTC8h 15m
2026-05-06 AFR431 SJO → CDG May 6, 12:10 UTCMay 7, 11:45 UTC23h 35m
2026-05-06 AFR551 CAI → CDG May 6, 02:30 UTCMay 6, 05:45 UTC3h 15m
2026-05-05 AFR570 CDG → CAI May 5, 19:10 UTCMay 5, 22:35 UTC3h 25m
2026-05-05 AFR477 CDG → PTY May 5, 03:55 UTCMay 5, 15:40 UTC11h 45m

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 F-HTYP page for operator, model, and routing details .

Mode-S 39CF0F frequently asked

What is Mode-S code 39CF0F?
39CF0F is an ICAO 24-bit transponder address. Allocated to France. Assigned to F-HTYP.
Where is Mode-S 39CF0F registered?
Mode-S code 39CF0F is allocated to France (FR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 39CF0F broadcasting right now?
Yes. Mode-S 39CF0F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 39CF0F, octal 16347417, decimal 3,788,559.
What flights does 39CF0F operate?
Mode-S 39CF0F has broadcast 20 distinct callsigns, including AFR174, AFR407, AFR173, AFR406, AFR435.