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sensors Mode-S transponder

C01D72

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FLDX · BOEING 737 MAX 8 · operated by Flair Airlines Ltd

Hex
C01D72
Octal
60016562
Decimal
12,590,450
Country
CA
Tail
C-FLDX
Type
B38M
Broadcasting now · callsign FLE623 · 36,000 ft
Flights observed
413
Distinct callsigns
20
Country
CA
Last broadcast
27m ago

Current position

C01D72 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C01D72 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 20 distinct

Callsign Airline Flights Last seen
FLE600 - 17 2026-07-06
FLE807 - 15 2026-07-04
FLE806 - 13 2026-07-04
FLE601 - 13 2026-06-24
FLE107 - 11 2026-07-04
FLE106 - 11 2026-07-04
FLE825 - 10 2026-07-05
FLE824 - 10 2026-07-05
FLE2820 - 10 2026-06-30
FLE823 - 9 2026-07-02
FLE822 - 9 2026-07-02
FLE821 - 8 2026-06-30
FLE623 - 8 2026-07-14
FLE2821 - 8 2026-06-30
FLE820 - 7 2026-06-30
FLE2854 Flair Airlines 7 2026-06-27
FLE859 - 6 2026-07-02
FLE858 - 6 2026-07-02
FLE805 - 6 2026-06-29
FLE804 - 6 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 FLE623 - Jul 14, 14:10 UTCJul 14, 14:30 UTC20m
2026-07-14 FLE636 - Jul 14, 07:35 UTCJul 14, 10:40 UTC3h 5m
2026-07-14 FLE756 - Jul 14, 04:10 UTCJul 14, 05:00 UTC50m
2026-07-14 FLE559 YYC → YLW Jul 14, 02:20 UTCJul 14, 03:10 UTC50m
2026-07-14 FLE558 - Jul 14, 00:25 UTCJul 14, 01:10 UTC45m
2026-07-13 FLE757 - Jul 13, 22:20 UTCJul 13, 23:15 UTC55m
2026-07-13 FLE758 - Jul 13, 20:05 UTCJul 13, 20:55 UTC50m
2026-07-13 FLE759 - Jul 13, 17:55 UTCJul 13, 19:00 UTC1h 5m
2026-07-13 FLE826 - Jul 13, 15:40 UTCJul 13, 16:40 UTC1h 0m
2026-07-13 FLE827 - Jul 13, 13:10 UTCJul 13, 14:30 UTC1h 20m
2026-07-13 FLE637 - Jul 13, 02:40 UTCJul 13, 06:25 UTC3h 45m
2026-07-12 FLE657 - Jul 12, 23:05 UTCJul 13, 01:01 UTC1h 55m
2026-07-12 FLE404 - Jul 12, 20:10 UTCJul 12, 21:55 UTC1h 45m
2026-07-12 FLE405 - Jul 12, 17:15 UTCJul 12, 19:15 UTC2h 0m
2026-07-12 FLE656 - Jul 12, 14:15 UTCJul 12, 15:55 UTC1h 40m
2026-07-12 FLE2627 - Jul 12, 06:55 UTCJul 12, 11:05 UTC4h 10m
2026-07-12 FLE2626 YYZ → MEX Jul 12, 00:55 UTCJul 12, 05:30 UTC4h 35m
2026-07-11 FLE638 - Jul 11, 20:05 UTCJul 11, 23:20 UTC3h 15m
2026-07-11 FLE639 YYZ → YEG Jul 11, 15:10 UTCJul 11, 19:00 UTC3h 50m
2026-07-11 FLE628 YYC → YYZ Jul 11, 08:40 UTCJul 11, 12:00 UTC3h 20m
2026-07-11 FLE542 - Jul 11, 03:55 UTCJul 11, 05:01 UTC1h 5m
2026-07-11 FLE543 - Jul 11, 01:45 UTCJul 11, 03:01 UTC1h 15m
2026-07-10 FLE621 - Jul 10, 20:55 UTCJul 11, 00:40 UTC3h 45m
2026-07-10 FLE620 YYC → YYZ Jul 10, 15:35 UTCJul 10, 18:50 UTC3h 15m
2026-07-10 FLE525 - Jul 10, 10:20 UTCJul 10, 14:15 UTC3h 55m
2026-07-09 FLE524 - Jul 9, 15:35 UTCJul 9, 18:50 UTC3h 15m
2026-07-09 FLE525 - Jul 9, 10:20 UTCJul 9, 14:05 UTC3h 45m
2026-07-07 FLE524 - Jul 7, 15:25 UTCJul 7, 18:35 UTC3h 10m
2026-07-07 FLE629 - Jul 7, 02:05 UTCJul 7, 06:00 UTC3h 55m
2026-07-06 FLE604 - Jul 6, 20:05 UTCJul 7, 00:15 UTC4h 10m
2026-07-06 FLE605 - Jul 6, 14:00 UTCJul 6, 18:35 UTC4h 35m
2026-07-06 FLE600 - Jul 6, 06:05 UTCJul 6, 10:15 UTC4h 10m
2026-07-05 FLE2855 YVR → YVR Jul 5, 17:00 UTCJul 6, 04:10 UTC11h 10m
2026-07-05 FLE825 - Jul 5, 03:30 UTCJul 5, 04:50 UTC1h 20m
2026-07-05 FLE824 YVR → YEG Jul 5, 01:00 UTCJul 5, 02:10 UTC1h 10m
2026-07-04 FLE807 YYC → YVR Jul 4, 22:35 UTCJul 4, 23:50 UTC1h 15m
2026-07-04 FLE806 - Jul 4, 20:10 UTCJul 4, 21:05 UTC55m
2026-07-04 FLE107 YUL → YVR Jul 4, 13:15 UTCJul 4, 18:40 UTC5h 25m
2026-07-04 FLE106 YVR → YUL Jul 4, 06:50 UTCJul 4, 11:10 UTC4h 20m
2026-07-04 FLE1849 - Jul 4, 02:05 UTCJul 4, 04:00 UTC1h 55m
2026-07-03 FLE1848 YVR → SFO Jul 3, 22:45 UTCJul 4, 00:35 UTC1h 50m
2026-07-03 FLE1889 - Jul 3, 18:40 UTCJul 3, 21:15 UTC2h 35m
2026-07-03 FLE1888 - Jul 3, 15:00 UTCJul 3, 17:20 UTC2h 20m
2026-07-03 FLE813 YYC → YVR Jul 3, 05:00 UTCJul 3, 06:20 UTC1h 20m
2026-07-03 FLE812 - Jul 3, 02:40 UTCJul 3, 03:40 UTC1h 0m
2026-07-02 FLE859 YWG → YVR Jul 2, 22:35 UTCJul 3, 01:15 UTC2h 40m
2026-07-02 FLE858 - Jul 2, 19:00 UTCJul 2, 21:25 UTC2h 25m
2026-07-02 FLE823 YEG → YVR Jul 2, 16:10 UTCJul 2, 17:30 UTC1h 20m
2026-07-02 FLE822 YVR → YEG Jul 2, 14:05 UTCJul 2, 15:15 UTC1h 10m
2026-07-02 FLE825 YEG → YVR Jul 2, 03:15 UTCJul 2, 04:40 UTC1h 25m

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

Mode-S C01D72 frequently asked

What is Mode-S code C01D72?
C01D72 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FLDX.
Where is Mode-S C01D72 registered?
Mode-S code C01D72 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C01D72 broadcasting right now?
Yes. Mode-S C01D72 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C01D72, octal 60016562, decimal 12,590,450.
What flights does C01D72 operate?
Mode-S C01D72 has broadcast 20 distinct callsigns, including FLE600, FLE807, FLE806, FLE601, FLE107.