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sensors Mode-S transponder

C0253F

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FOCS · DE HAVILLAND DHC-2 Beaver · operated by CHARTRIGHT AIR INC.

Hex
C0253F
Octal
60022477
Decimal
12,592,447
Country
CA
Tail
C-FOCS
Type
DHC2
No current signal · last broadcast 9h ago
Flights observed
100
Distinct callsigns
1
Country
CA
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S C0253F.

Country allocation

The ICAO 24-bit address C0253F 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 1 distinct

Callsign Airline Flights Last seen
CFOCS - 100 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CFOCS - Jul 14, 10:30 UTCJul 14, 11:25 UTC55m
2026-07-12 CFOCS - Jul 12, 22:40 UTCJul 13, 00:40 UTC2h 0m
2026-07-12 CFOCS - Jul 12, 17:40 UTCJul 12, 19:40 UTC2h 0m
2026-07-09 CFOCS - Jul 9, 20:00 UTCJul 9, 20:50 UTC50m
2026-07-09 CFOCS - Jul 9, 17:35 UTCJul 9, 18:20 UTC45m
2026-07-07 CFOCS - Jul 7, 12:05 UTCJul 7, 12:50 UTC45m
2026-07-07 CFOCS - Jul 7, 10:40 UTCJul 7, 11:25 UTC45m
2026-07-05 CFOCS - Jul 5, 16:20 UTCJul 5, 17:35 UTC1h 15m
2026-07-04 CFOCS YYZ → FOK Jul 4, 14:00 UTCJul 4, 15:15 UTC1h 15m
2026-06-30 CFOCS - Jun 30, 20:10 UTCJun 30, 22:00 UTC1h 50m
2026-06-30 CFOCS - Jun 30, 16:45 UTCJun 30, 18:45 UTC2h 0m
2026-06-30 CFOCS YYZ → FXE Jun 30, 12:55 UTCJun 30, 15:45 UTC2h 50m
2026-06-27 CFOCS - Jun 27, 14:35 UTCJun 27, 15:14 UTC40m
2026-06-26 CFOCS - Jun 26, 19:30 UTCJun 26, 20:15 UTC45m
2026-06-26 CFOCS - Jun 26, 10:44 UTCJun 26, 11:30 UTC45m
2026-06-25 CFOCS - Jun 25, 19:15 UTCJun 25, 20:45 UTC1h 30m
2026-06-25 CFOCS - Jun 25, 17:30 UTCJun 25, 18:00 UTC30m
2026-06-24 CFOCS - Jun 24, 17:05 UTCJun 24, 17:45 UTC40m
2026-06-24 CFOCS - Jun 24, 14:20 UTCJun 24, 15:49 UTC1h 30m
2026-06-24 CFOCS - Jun 24, 12:25 UTCJun 24, 12:44 UTC20m
2026-06-23 CFOCS - Jun 23, 19:39 UTCJun 23, 20:19 UTC40m
2026-06-23 CFOCS - Jun 23, 10:49 UTCJun 23, 11:29 UTC40m
2026-06-19 CFOCS - Jun 19, 17:49 UTCJun 19, 18:54 UTC1h 5m
2026-06-19 CFOCS - Jun 19, 12:09 UTCJun 19, 13:04 UTC55m
2026-06-18 CFOCS - Jun 18, 20:15 UTCJun 18, 21:05 UTC50m
2026-06-18 CFOCS - Jun 18, 17:00 UTCJun 18, 17:50 UTC50m
2026-06-16 CFOCS - Jun 16, 17:30 UTCJun 16, 18:15 UTC45m
2026-06-16 CFOCS - Jun 16, 10:40 UTCJun 16, 11:25 UTC45m
2026-06-15 CFOCS - Jun 15, 03:30 UTCJun 15, 04:55 UTC1h 25m
2026-06-15 CFOCS YYZ → TEB Jun 15, 01:25 UTCJun 15, 02:30 UTC1h 5m
2026-06-12 CFOCS - Jun 12, 20:25 UTCJun 12, 20:45 UTC20m
2026-06-12 CFOCS - Jun 12, 18:20 UTCJun 12, 18:50 UTC30m
2026-06-12 CFOCS - Jun 12, 15:45 UTCJun 12, 16:20 UTC35m
2026-06-11 CFOCS - Jun 11, 20:55 UTCJun 11, 21:45 UTC50m
2026-06-11 CFOCS - Jun 11, 10:40 UTCJun 11, 11:25 UTC45m
2026-06-10 CFOCS TEB → YYZ Jun 10, 21:40 UTCJun 10, 23:00 UTC1h 20m
2026-06-10 CFOCS YYZ → TEB Jun 10, 13:55 UTCJun 10, 14:55 UTC1h 0m
2026-06-09 CFOCS - Jun 9, 21:00 UTCJun 9, 21:35 UTC35m
2026-06-09 CFOCS - Jun 9, 10:50 UTCJun 9, 11:35 UTC45m
2026-06-07 CFOCS - Jun 7, 22:00 UTCJun 7, 22:35 UTC35m
2026-06-07 CFOCS - Jun 7, 20:15 UTCJun 7, 20:45 UTC30m
2026-06-07 CFOCS - Jun 7, 17:50 UTCJun 7, 18:05 UTC15m
2026-06-02 CFOCS - Jun 2, 00:45 UTCJun 2, 01:50 UTC1h 5m
2026-06-01 CFOCS - Jun 1, 13:30 UTCJun 1, 14:30 UTC1h 0m
2026-05-31 CFOCS YHU → YYZ May 31, 18:45 UTCMay 31, 19:55 UTC1h 10m
2026-05-29 CFOCS - May 29, 19:05 UTCMay 29, 20:05 UTC1h 0m
2026-05-28 CFOCS - May 28, 21:25 UTCMay 28, 22:05 UTC40m
2026-05-28 CFOCS - May 28, 19:20 UTCMay 28, 20:00 UTC40m
2026-05-28 CFOCS - May 28, 14:20 UTCMay 28, 15:15 UTC55m
2026-05-27 CFOCS YYZ → YUL May 27, 16:40 UTCMay 27, 17:35 UTC55m

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

Mode-S C0253F frequently asked

What is Mode-S code C0253F?
C0253F is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FOCS.
Where is Mode-S C0253F registered?
Mode-S code C0253F is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0253F broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0253F, octal 60022477, decimal 12,592,447.
What flights does C0253F operate?
Mode-S C0253F has broadcast 1 distinct callsign, including CFOCS.