Apparatus

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sensors Mode-S transponder

C054B3

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GGBY · BEECH 1900 · operated by NORTHERN THUNDERBIRD AIR INC., Central Mountain Air Ltd

Hex
C054B3
Octal
60052263
Decimal
12,604,595
Country
CA
Tail
C-GGBY
Type
B190
No current signal · last broadcast 7h ago
Flights observed
173
Distinct callsigns
20
Country
CA
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S C054B3.

Country allocation

The ICAO 24-bit address C054B3 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
GLR2768 Central Mountain Air 21 2026-07-10
GLR1923 - 19 2026-07-06
GLR631 - 14 2026-07-13
GLR2769 - 12 2026-07-09
GLR632 - 10 2026-07-12
GLR2713 - 9 2026-07-09
GLR9430 - 8 2026-06-19
GLR301 Central Mountain Air 8 2026-05-19
GLR9010 - 7 2026-07-10
GLR728 - 7 2026-07-13
GLR777 - 6 2026-07-12
GLR9011 - 5 2026-07-10
GLR302 Central Mountain Air 5 2026-05-20
GLR738 - 4 2026-07-14
GLR9874 - 3 2026-07-05
GLR786 Central Mountain Air 3 2026-06-22
GLR783 Central Mountain Air 3 2026-06-22
GLR778 - 3 2026-07-12
GLR1922 Central Mountain Air 3 2026-04-18
GLR9913 - 2 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GLR738 - Jul 14, 00:20 UTCJul 14, 01:05 UTC45m
2026-07-13 GLR728 - Jul 13, 22:40 UTCJul 13, 22:55 UTC15m
2026-07-13 GLR631 - Jul 13, 19:05 UTCJul 13, 19:25 UTC20m
2026-07-13 GLR631 - Jul 13, 17:50 UTCJul 13, 18:10 UTC20m
2026-07-12 GLR778 - Jul 12, 23:15 UTCJul 12, 23:25 UTC10m
2026-07-12 GLR777 - Jul 12, 20:10 UTCJul 12, 20:25 UTC15m
2026-07-12 GLR632 - Jul 12, 18:10 UTCJul 12, 18:30 UTC20m
2026-07-12 GLR632 - Jul 12, 17:10 UTCJul 12, 17:30 UTC20m
2026-07-12 GLR631 - Jul 12, 15:50 UTCJul 12, 16:10 UTC20m
2026-07-12 GLR631 - Jul 12, 14:45 UTCJul 12, 15:10 UTC25m
2026-07-10 GLR634 - Jul 10, 21:50 UTCJul 10, 23:00 UTC1h 10m
2026-07-10 GLR9011 - Jul 10, 19:45 UTCJul 10, 20:00 UTC15m
2026-07-10 GLR9010 - Jul 10, 17:40 UTCJul 10, 18:00 UTC20m
2026-07-10 GLR2768 YVR → YKA Jul 10, 15:45 UTCJul 10, 15:55 UTC10m
2026-07-10 GLR2768 YVR → YKA Jul 10, 14:10 UTCJul 10, 14:30 UTC20m
2026-07-09 GLR2713 - Jul 9, 22:50 UTCJul 9, 23:10 UTC20m
2026-07-09 GLR2769 - Jul 9, 20:50 UTCJul 9, 22:15 UTC1h 25m
2026-07-09 GLR2768 YVR → YKA Jul 9, 15:50 UTCJul 9, 16:05 UTC15m
2026-07-09 GLR2768 YVR → YKA Jul 9, 14:05 UTCJul 9, 14:25 UTC20m
2026-07-08 GLR2713 - Jul 8, 22:45 UTCJul 8, 23:05 UTC20m
2026-07-08 GLR2769 - Jul 8, 20:30 UTCJul 8, 21:50 UTC1h 20m
2026-07-08 GLR2768 YVR → YKA Jul 8, 18:05 UTCJul 8, 18:20 UTC15m
2026-07-08 GLR2768 YVR → YKA Jul 8, 16:15 UTCJul 8, 16:35 UTC20m
2026-07-07 GLR2713 - Jul 7, 23:05 UTCJul 7, 23:25 UTC20m
2026-07-07 GLR2769 - Jul 7, 20:50 UTCJul 7, 22:20 UTC1h 30m
2026-07-07 GLR2768 YVR → YKA Jul 7, 16:05 UTCJul 7, 16:20 UTC15m
2026-07-07 GLR2768 YVR → YKA Jul 7, 14:25 UTCJul 7, 14:45 UTC20m
2026-07-07 GLR9953 - Jul 7, 00:10 UTCJul 7, 01:05 UTC55m
2026-07-06 GLR9952 - Jul 6, 22:40 UTCJul 6, 23:20 UTC40m
2026-07-06 GLR1923 - Jul 6, 21:45 UTCJul 6, 22:05 UTC20m
2026-07-06 GLR2750 YVR → YLW Jul 6, 13:30 UTCJul 6, 13:55 UTC25m
2026-07-05 GLR9875 - Jul 5, 18:05 UTCJul 5, 18:40 UTC35m
2026-07-05 GLR9874 - Jul 5, 16:30 UTCJul 5, 17:05 UTC35m
2026-07-03 GLR2769 - Jul 3, 20:35 UTCJul 3, 22:40 UTC2h 5m
2026-07-03 GLR9011 - Jul 3, 19:30 UTCJul 3, 19:50 UTC20m
2026-07-03 GLR9010 - Jul 3, 17:20 UTCJul 3, 17:45 UTC25m
2026-07-03 GLR2768 YVR → YKA Jul 3, 16:15 UTCJul 3, 16:35 UTC20m
2026-07-03 GLR2768 YVR → YKA Jul 3, 14:25 UTCJul 3, 14:45 UTC20m
2026-07-02 GLR2769 YBQ → YVR Jul 2, 22:50 UTCJul 2, 23:10 UTC20m
2026-07-02 GLR2769 - Jul 2, 20:40 UTCJul 2, 22:05 UTC1h 25m
2026-07-02 GLR2768 YVR → YKA Jul 2, 16:00 UTCJul 2, 16:20 UTC20m
2026-07-02 GLR2768 YVR → YKA Jul 2, 14:20 UTCJul 2, 14:40 UTC20m
2026-06-30 GLR2713 - Jun 30, 22:45 UTCJun 30, 23:05 UTC20m
2026-06-30 GLR2769 - Jun 30, 20:30 UTCJun 30, 21:45 UTC1h 15m
2026-06-30 GLR2768 YVR → YKA Jun 30, 16:30 UTCJun 30, 16:50 UTC20m
2026-06-30 GLR2768 YVR → YKA Jun 30, 14:45 UTCJun 30, 15:05 UTC20m
2026-06-29 GLR2713 - Jun 29, 22:39 UTCJun 29, 22:59 UTC20m
2026-06-29 GLR2710 - Jun 29, 21:44 UTCJun 29, 22:00 UTC15m
2026-06-28 GLR9874 - Jun 28, 18:10 UTCJun 28, 18:44 UTC35m
2026-06-28 GLR9874 - Jun 28, 16:19 UTCJun 28, 16:55 UTC35m

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

Mode-S C054B3 frequently asked

What is Mode-S code C054B3?
C054B3 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GGBY.
Where is Mode-S C054B3 registered?
Mode-S code C054B3 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C054B3 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C054B3, octal 60052263, decimal 12,604,595.
What flights does C054B3 operate?
Mode-S C054B3 has broadcast 20 distinct callsigns, including GLR2768, GLR1923, GLR631, GLR2769, GLR632.