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sensors Mode-S transponder

C055C9

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GGMQ · DE HAVILLAND DHC-8-400 Dash 8 · operated by Jazz Aviation LP

Hex
C055C9
Octal
60052711
Decimal
12,604,873
Country
CA
Tail
C-GGMQ
Type
DH8D
No current signal · last broadcast 1h ago
Flights observed
760
Distinct callsigns
20
Country
CA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C055C9.

Country allocation

The ICAO 24-bit address C055C9 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
JZA421 - 17 2026-07-11
JZA368 - 17 2026-07-12
JZA423 - 16 2026-07-11
JZA422 - 16 2026-07-11
JZA391 - 15 2026-07-12
JZA420 - 14 2026-07-11
JZA408 - 13 2026-07-02
JZA371 - 13 2026-07-08
JZA279 - 13 2026-07-12
JZA90 - 12 2026-07-08
JZA89 - 12 2026-07-08
JZA39 - 12 2026-07-01
JZA28 - 12 2026-07-01
JZA394 - 11 2026-07-10
JZA324 - 11 2026-07-09
JZA62 - 10 2026-07-12
JZA54 - 10 2026-07-09
JZA441 - 10 2026-07-04
JZA365 - 10 2026-07-12
JZA320 - 10 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JZA294 - Jul 14, 02:40 UTCJul 14, 03:00 UTC20m
2026-07-14 JZA294 - Jul 14, 00:45 UTCJul 14, 01:05 UTC20m
2026-07-13 JZA294 - Jul 13, 22:50 UTCJul 13, 23:50 UTC1h 0m
2026-07-13 JZA293 - Jul 13, 20:20 UTCJul 13, 21:00 UTC40m
2026-07-13 JZA440 YXT → YVR Jul 13, 17:30 UTCJul 13, 19:00 UTC1h 30m
2026-07-13 JZA437 - Jul 13, 15:05 UTCJul 13, 16:20 UTC1h 15m
2026-07-13 JZA438 YXT → YVR Jul 13, 12:40 UTCJul 13, 14:10 UTC1h 30m
2026-07-13 JZA445 YVR → YXT Jul 13, 04:05 UTCJul 13, 05:20 UTC1h 15m
2026-07-13 JZA168 - Jul 13, 02:01 UTCJul 13, 02:15 UTC15m
2026-07-13 JZA161 - Jul 13, 01:05 UTCJul 13, 01:15 UTC10m
2026-07-12 JZA370 - Jul 12, 22:35 UTCJul 13, 00:05 UTC1h 30m
2026-07-12 JZA367 - Jul 12, 20:05 UTCJul 12, 21:30 UTC1h 25m
2026-07-12 JZA368 - Jul 12, 17:20 UTCJul 12, 19:01 UTC1h 40m
2026-07-12 JZA368 YXJ → YVR Jul 12, 17:17 UTCJul 12, 18:52 UTC1h 35m
2026-07-12 JZA365 YVR → YXJ Jul 12, 14:50 UTCJul 12, 16:15 UTC1h 25m
2026-07-12 JZA53 - Jul 12, 13:30 UTCJul 12, 13:55 UTC25m
2026-07-12 JZA62 - Jul 12, 04:25 UTCJul 12, 04:45 UTC20m
2026-07-12 JZA279 - Jul 12, 02:40 UTCJul 12, 03:20 UTC40m
2026-07-12 JZA391 YYC → YLW Jul 12, 01:00 UTCJul 12, 01:55 UTC55m
2026-07-11 JZA423 - Jul 11, 23:20 UTCJul 12, 00:05 UTC45m
2026-07-11 JZA423 YMM → YYC Jul 11, 22:39 UTCJul 11, 23:52 UTC1h 13m
2026-07-11 JZA422 - Jul 11, 20:40 UTCJul 11, 21:20 UTC40m
2026-07-11 JZA422 YYC → YMM Jul 11, 20:39 UTCJul 11, 21:34 UTC55m
2026-07-11 JZA421 - Jul 11, 18:40 UTCJul 11, 19:45 UTC1h 5m
2026-07-11 JZA420 - Jul 11, 16:45 UTCJul 11, 17:30 UTC45m
2026-07-11 JZA420 YYC → YMM Jul 11, 16:44 UTCJul 11, 17:51 UTC1h 7m
2026-07-10 JZA138 YEG → YYC Jul 10, 23:40 UTCJul 11, 00:20 UTC40m
2026-07-10 JZA138 YYC → YEG Jul 10, 21:55 UTCJul 10, 22:30 UTC35m
2026-07-10 JZA394 - Jul 10, 20:05 UTCJul 10, 20:50 UTC45m
2026-07-10 JZA270 - Jul 10, 18:30 UTCJul 10, 19:10 UTC40m
2026-07-10 JZA152 - Jul 10, 17:05 UTCJul 10, 17:20 UTC15m
2026-07-10 JZA147 - Jul 10, 15:55 UTCJul 10, 16:05 UTC10m
2026-07-10 JZA350 - Jul 10, 03:30 UTCJul 10, 04:50 UTC1h 20m
2026-07-10 JZA345 YVR → YXS Jul 10, 01:45 UTCJul 10, 02:40 UTC55m
2026-07-10 JZA345 YVR → YXS Jul 10, 01:41 UTCJul 10, 02:28 UTC47m
2026-07-09 JZA446 - Jul 9, 23:25 UTCJul 10, 00:15 UTC50m
2026-07-09 JZA446 YXT → YVR Jul 9, 23:23 UTCJul 10, 00:42 UTC1h 19m
2026-07-09 JZA439 - Jul 9, 21:15 UTCJul 9, 22:40 UTC1h 25m
2026-07-09 JZA320 - Jul 9, 19:10 UTCJul 9, 19:40 UTC30m
2026-07-09 JZA320 YQQ → YVR Jul 9, 19:07 UTCJul 9, 19:20 UTC13m
2026-07-09 JZA317 YVR → YQQ Jul 9, 17:30 UTCJul 9, 17:55 UTC25m
2026-07-09 JZA55 - Jul 9, 16:20 UTCJul 9, 16:45 UTC25m
2026-07-09 JZA54 - Jul 9, 14:40 UTCJul 9, 14:55 UTC15m
2026-07-09 JZA324 YQQ → YVR Jul 9, 02:25 UTCJul 9, 02:50 UTC25m
2026-07-09 JZA321 - Jul 9, 01:25 UTCJul 9, 01:45 UTC20m
2026-07-08 JZA90 - Jul 8, 23:00 UTCJul 9, 00:15 UTC1h 15m
2026-07-08 JZA89 - Jul 8, 20:25 UTCJul 8, 21:50 UTC1h 25m
2026-07-08 JZA344 YXS → YVR Jul 8, 17:40 UTCJul 8, 18:55 UTC1h 15m
2026-07-08 JZA366 - Jul 8, 15:35 UTCJul 8, 16:35 UTC1h 0m
2026-07-08 JZA366 YXJ → YVR Jul 8, 12:35 UTCJul 8, 14:10 UTC1h 35m

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

Mode-S C055C9 frequently asked

What is Mode-S code C055C9?
C055C9 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GGMQ.
Where is Mode-S C055C9 registered?
Mode-S code C055C9 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C055C9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C055C9, octal 60052711, decimal 12,604,873.
What flights does C055C9 operate?
Mode-S C055C9 has broadcast 20 distinct callsigns, including JZA421, JZA368, JZA423, JZA422, JZA391.