sensors Mode-S transponder

C01F1E

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FLUJ · BOEING 737-800 · operated by FLAIR AIRLINES LTD

Hex
C01F1E
Octal
60017436
Decimal
12,590,878
Country
CA
Tail
C-FLUJ
Type
B738
No current signal · last broadcast 14h ago
Flights observed
5
Distinct callsigns
3
Country
CA
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S C01F1E.

Country allocation

The ICAO 24-bit address C01F1E falls within the block assigned to Canada (CA) by ICAO Annex 10, Volume III. Every aircraft registered in Canada 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 3 distinct

Callsign Airline Flights Last seen
FLE9000 Flair Airlines 2 2026-04-14
FLE641 Flair Airlines 2 2026-04-13
FLE2611 - 1 2026-04-12

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 FLE9000 YYZ → YHZ Apr 14, 07:10 UTCApr 14, 07:50 UTC40m
2026-04-14 FLE9000 YYZ → YHZ Apr 14, 05:45 UTCApr 14, 07:10 UTC1h 25m
2026-04-13 FLE641 YYZ → YWG Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 FLE641 YYZ → YWG Apr 12, 23:55 UTCApr 13, 00:55 UTC1h 0m
2026-04-12 FLE2611 - Apr 12, 18:20 UTCApr 12, 20:15 UTC1h 55m

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 C-FLUJ page for operator, model, and routing details .

Mode-S C01F1E frequently asked

What is Mode-S code C01F1E?
C01F1E is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FLUJ.
Where is Mode-S C01F1E registered?
Mode-S code C01F1E is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C01F1E broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C01F1E, octal 60017436, decimal 12,590,878.
What flights does C01F1E operate?
Mode-S C01F1E has broadcast 3 distinct callsigns, including FLE9000, FLE641, FLE2611.