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sensors Mode-S transponder

C0551D

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GGGA · BEECH 1900 · operated by Propair Inc.

Hex
C0551D
Octal
60052435
Decimal
12,604,701
Country
CA
Tail
C-GGGA
Type
B190
No current signal · last broadcast Jul 25, 00:10 UTC
Flights observed
100
Distinct callsigns
20
Country
CA
Last broadcast
Jul 25, 00:10 UTC

Last known position

Most recent position reported by Mode-S C0551D.

Country allocation

The ICAO 24-bit address C0551D 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
PRO4830 - 8 2026-07-23
PRO4858 Propair 6 2026-07-20
PRO4827 Propair 6 2026-07-24
PRO4826 - 6 2026-07-24
PRO4825 - 6 2026-07-23
PRO4800 Propair 6 2026-07-24
PRO4865 - 5 2026-07-19
PRO4810 Propair 5 2026-07-24
PRO4860 - 3 2026-07-19
PRO4850 Propair 3 2026-07-23
PRO4847 Propair 3 2026-07-21
PRO4846 Propair 3 2026-07-24
PRO4829 Propair 3 2026-07-19
PRO4828 Propair 3 2026-07-19
PRO4400 - 3 2026-07-15
PRO4898 - 2 2026-07-10
PRO4895 - 2 2026-07-16
PRO4893 - 2 2026-07-09
PRO4885 - 2 2026-07-16
PRO4880 - 2 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 PRO4810 YUL → YUY Jul 24, 23:05 UTCJul 25, 00:10 UTC1h 5m
2026-07-24 PRO4845 YQB → YUL Jul 24, 21:25 UTCJul 24, 22:00 UTC35m
2026-07-24 PRO4832 ZBF → YQB Jul 24, 19:30 UTCJul 24, 20:35 UTC1h 5m
2026-07-24 PRO4846 YQB → YUL Jul 24, 17:25 UTCJul 24, 18:50 UTC1h 25m
2026-07-24 PRO4827 ZBF → YUL Jul 24, 14:55 UTCJul 24, 16:30 UTC1h 35m
2026-07-24 PRO4826 - Jul 24, 13:10 UTCJul 24, 14:25 UTC1h 15m
2026-07-24 PRO4800 YUY → YUL Jul 24, 11:30 UTCJul 24, 12:35 UTC1h 5m
2026-07-23 PRO4850 YUL → YQB Jul 23, 23:25 UTCJul 24, 00:40 UTC1h 15m
2026-07-23 PRO4850 YUL → YQB Jul 23, 22:00 UTCJul 23, 22:45 UTC45m
2026-07-23 PRO4830 - Jul 23, 20:15 UTCJul 23, 21:20 UTC1h 5m
2026-07-23 PRO4825 - Jul 23, 17:20 UTCJul 23, 18:20 UTC1h 0m
2026-07-23 PRO4827 - Jul 23, 15:05 UTCJul 23, 16:40 UTC1h 35m
2026-07-23 PRO4826 - Jul 23, 13:05 UTCJul 23, 14:25 UTC1h 20m
2026-07-22 PRO4830 - Jul 22, 23:25 UTCJul 23, 00:30 UTC1h 5m
2026-07-22 PRO4810 - Jul 22, 12:00 UTCJul 22, 13:00 UTC1h 0m
2026-07-21 PRO4847 ZBF → YUL Jul 21, 20:25 UTCJul 21, 22:00 UTC1h 35m
2026-07-21 PRO4846 - Jul 21, 18:25 UTCJul 21, 19:45 UTC1h 20m
2026-07-21 PRO4827 - Jul 21, 15:05 UTCJul 21, 16:40 UTC1h 35m
2026-07-21 PRO4826 - Jul 21, 13:05 UTCJul 21, 14:20 UTC1h 15m
2026-07-21 PRO4800 YUY → YUL Jul 21, 11:15 UTCJul 21, 12:15 UTC1h 0m
2026-07-20 PRO4825 - Jul 20, 13:20 UTCJul 20, 14:25 UTC1h 5m
2026-07-20 PRO4858 YSB → YOW Jul 20, 10:35 UTCJul 20, 12:20 UTC1h 45m
2026-07-19 PRO4865 - Jul 19, 19:40 UTCJul 19, 21:35 UTC1h 55m
2026-07-19 PRO4829 ZBF → YUL Jul 19, 17:10 UTCJul 19, 18:45 UTC1h 35m
2026-07-19 PRO4828 YUL → ZBF Jul 19, 15:05 UTCJul 19, 16:20 UTC1h 15m
2026-07-19 PRO4860 - Jul 19, 14:00 UTCJul 19, 14:30 UTC30m
2026-07-19 PRO4858 YSB → YOW Jul 19, 12:35 UTCJul 19, 13:30 UTC55m
2026-07-17 PRO4865 - Jul 17, 23:10 UTCJul 18, 01:10 UTC2h 0m
2026-07-17 PRO4830 - Jul 17, 21:10 UTCJul 17, 22:10 UTC1h 0m
2026-07-17 PRO4825 - Jul 17, 17:35 UTCJul 17, 18:50 UTC1h 15m
2026-07-17 PRO4860 - Jul 17, 14:20 UTCJul 17, 14:50 UTC30m
2026-07-17 PRO4858 - Jul 17, 13:00 UTCJul 17, 13:50 UTC50m
2026-07-17 PRO1050 - Jul 17, 11:55 UTCJul 17, 12:25 UTC30m
2026-07-16 PRO4895 - Jul 16, 22:59 UTCJul 17, 00:20 UTC1h 20m
2026-07-16 PRO4830 - Jul 16, 21:40 UTCJul 16, 22:25 UTC45m
2026-07-16 PRO4830 - Jul 16, 20:09 UTCJul 16, 21:10 UTC1h 0m
2026-07-16 PRO4805 - Jul 16, 14:35 UTCJul 16, 15:55 UTC1h 20m
2026-07-16 PRO4885 YQB → YUL Jul 16, 13:15 UTCJul 16, 14:00 UTC45m
2026-07-16 PRO4880 - Jul 16, 11:30 UTCJul 16, 12:30 UTC1h 0m
2026-07-15 PRO4400 - Jul 15, 12:45 UTCJul 15, 12:55 UTC10m
2026-07-15 PRO4810 - Jul 15, 00:15 UTCJul 15, 01:25 UTC1h 10m
2026-07-14 PRO4847 - Jul 14, 20:00 UTCJul 14, 23:30 UTC3h 29m
2026-07-14 PRO4827 - Jul 14, 15:15 UTCJul 14, 16:55 UTC1h 40m
2026-07-14 PRO4826 - Jul 14, 13:00 UTCJul 14, 14:30 UTC1h 30m
2026-07-14 PRO4800 - Jul 14, 11:15 UTCJul 14, 12:10 UTC55m
2026-07-13 PRO4865 - Jul 13, 23:00 UTCJul 14, 01:45 UTC2h 45m
2026-07-13 PRO4830 - Jul 13, 21:15 UTCJul 13, 22:15 UTC1h 0m
2026-07-13 PRO4130 - Jul 13, 10:30 UTCJul 13, 11:30 UTC1h 0m
2026-07-12 PRO1050 - Jul 12, 19:01 UTCJul 12, 20:01 UTC1h 0m
2026-07-10 PRO4898 - Jul 10, 22:05 UTCJul 10, 23:10 UTC1h 5m

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

Mode-S C0551D frequently asked

What is Mode-S code C0551D?
C0551D is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GGGA.
Where is Mode-S C0551D registered?
Mode-S code C0551D is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0551D broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 00:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0551D, octal 60052435, decimal 12,604,701.
What flights does C0551D operate?
Mode-S C0551D has broadcast 20 distinct callsigns, including PRO4830, PRO4858, PRO4827, PRO4826, PRO4825.