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sensors Mode-S transponder

C0673A

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GNCJ · CESSNA 140 · operated by CENTRAL MOUNTAIN AIR LTD

Hex
C0673A
Octal
60063472
Decimal
12,609,338
Country
CA
Tail
C-GNCJ
Type
C140
No current signal · last broadcast 1d ago
Flights observed
141
Distinct callsigns
20
Country
CA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S C0673A.

Country allocation

The ICAO 24-bit address C0673A 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
GLR564 - 27 2026-07-16
GLR562 - 11 2026-06-28
GLR1938 - 10 2026-07-14
GLR9658 - 9 2026-07-11
GLR567 - 9 2026-07-17
GLR9659 - 7 2026-07-15
GLR8111 - 6 2026-07-16
GLR566 Central Mountain Air 6 2026-07-16
GLR8110 - 5 2026-07-16
GLR9759 - 4 2026-07-12
GLR9758 - 4 2026-07-12
GLR9754 - 4 2026-06-25
GLR721 Central Mountain Air 3 2026-05-04
GLR193 - 3 2026-06-06
GLR9925 Central Mountain Air 2 2026-06-10
GLR9914 Central Mountain Air 2 2026-05-29
GLR9755 - 2 2026-06-18
GLR9653 Central Mountain Air 2 2026-06-16
GLR9652 Central Mountain Air 2 2026-06-16
GLR965 - 2 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 GLR567 - Jul 17, 02:20 UTCJul 17, 02:50 UTC30m
2026-07-17 GLR567 - Jul 17, 01:39 UTCJul 17, 01:49 UTC10m
2026-07-16 GLR566 YVR → YQZ Jul 16, 23:44 UTCJul 17, 00:14 UTC30m
2026-07-16 GLR8111 - Jul 16, 21:55 UTCJul 16, 22:45 UTC50m
2026-07-16 GLR8111 - Jul 16, 21:00 UTCJul 16, 21:19 UTC20m
2026-07-16 GLR8110 - Jul 16, 17:14 UTCJul 16, 18:55 UTC1h 40m
2026-07-16 GLR564 - Jul 16, 03:00 UTCJul 16, 03:35 UTC35m
2026-07-16 GLR564 - Jul 16, 00:10 UTCJul 16, 00:30 UTC20m
2026-07-15 GLR8111 - Jul 15, 22:10 UTCJul 15, 23:05 UTC55m
2026-07-15 GLR8111 - Jul 15, 21:15 UTCJul 15, 21:35 UTC20m
2026-07-15 GLR8110 - Jul 15, 18:30 UTCJul 15, 18:45 UTC15m
2026-07-15 GLR8110 - Jul 15, 17:10 UTCJul 15, 17:55 UTC45m
2026-07-15 GLR9659 - Jul 15, 01:20 UTCJul 15, 02:10 UTC50m
2026-07-14 GLR1938 - Jul 14, 23:15 UTCJul 15, 00:00 UTC45m
2026-07-14 GLR8111 - Jul 14, 21:35 UTCJul 14, 22:30 UTC55m
2026-07-14 GLR8111 - Jul 14, 20:45 UTCJul 14, 21:00 UTC15m
2026-07-14 GLR8110 - Jul 14, 18:40 UTCJul 14, 18:55 UTC15m
2026-07-14 GLR8110 - Jul 14, 17:15 UTCJul 14, 18:05 UTC50m
2026-07-14 GLR965 - Jul 14, 02:35 UTCJul 14, 03:15 UTC40m
2026-07-14 GLR965 - Jul 14, 00:25 UTCJul 14, 00:50 UTC25m
2026-07-13 GLR9259 - Jul 13, 22:55 UTCJul 13, 23:45 UTC50m
2026-07-13 GLR9257 - Jul 13, 20:45 UTCJul 13, 21:35 UTC50m
2026-07-12 GLR9759 - Jul 12, 20:50 UTCJul 12, 21:45 UTC55m
2026-07-12 GLR9758 - Jul 12, 16:30 UTCJul 12, 17:20 UTC50m
2026-07-11 GLR9659 - Jul 11, 21:20 UTCJul 11, 22:05 UTC45m
2026-07-11 GLR9658 - Jul 11, 17:05 UTCJul 11, 18:00 UTC55m
2026-07-11 GLR564 - Jul 11, 03:05 UTCJul 11, 03:45 UTC40m
2026-07-11 GLR564 - Jul 11, 00:20 UTCJul 11, 00:35 UTC15m
2026-07-10 GLR2713 - Jul 10, 23:05 UTCJul 10, 23:20 UTC15m
2026-07-10 GLR2769 YVR → YCD Jul 10, 21:30 UTCJul 10, 21:45 UTC15m
2026-07-09 GLR9759 - Jul 9, 21:05 UTCJul 9, 21:50 UTC45m
2026-07-09 GLR9758 - Jul 9, 16:50 UTCJul 9, 17:45 UTC55m
2026-07-08 GLR101T - Jul 8, 18:10 UTCJul 8, 22:10 UTC4h 0m
2026-07-08 GLR9659 - Jul 8, 00:00 UTCJul 8, 00:50 UTC50m
2026-07-07 GLR9658 - Jul 7, 19:35 UTCJul 7, 20:35 UTC1h 0m
2026-07-07 GLR1938 - Jul 7, 15:20 UTCJul 7, 17:10 UTC1h 50m
2026-07-07 GLR676 - Jul 7, 02:30 UTCJul 7, 03:10 UTC40m
2026-07-07 GLR708 - Jul 7, 00:10 UTCJul 7, 01:55 UTC1h 45m
2026-07-06 GLR705 - Jul 6, 21:15 UTCJul 6, 22:35 UTC1h 20m
2026-07-06 GLR673 - Jul 6, 18:40 UTCJul 6, 20:30 UTC1h 50m
2026-07-06 GLR1938 - Jul 6, 15:45 UTCJul 6, 17:25 UTC1h 40m
2026-07-05 GLR9759 - Jul 5, 22:15 UTCJul 5, 23:10 UTC55m
2026-07-05 GLR9758 - Jul 5, 18:25 UTCJul 5, 19:25 UTC1h 0m
2026-07-04 GLR9658 - Jul 4, 22:50 UTCJul 4, 23:00 UTC10m
2026-07-04 GLR9658 - Jul 4, 21:50 UTCJul 4, 22:30 UTC40m
2026-07-04 GLR9658 - Jul 4, 17:10 UTCJul 4, 18:20 UTC1h 10m
2026-07-04 GLR564 - Jul 4, 00:25 UTCJul 4, 00:55 UTC30m
2026-07-03 GLR564 - Jul 3, 21:35 UTCJul 3, 21:55 UTC20m
2026-07-03 GLR9422 - Jul 3, 00:40 UTCJul 3, 01:10 UTC30m
2026-07-02 GLR9421 - Jul 2, 23:10 UTCJul 2, 23:40 UTC30m

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

Mode-S C0673A frequently asked

What is Mode-S code C0673A?
C0673A is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GNCJ.
Where is Mode-S C0673A registered?
Mode-S code C0673A is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0673A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0673A, octal 60063472, decimal 12,609,338.
What flights does C0673A operate?
Mode-S C0673A has broadcast 20 distinct callsigns, including GLR564, GLR562, GLR1938, GLR9658, GLR567.