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sensors Mode-S transponder

C0856A

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GYNP · AGUSTA AW-139 · operated by 7506406 Canada Inc.

Hex
C0856A
Octal
60102552
Decimal
12,617,066
Country
CA
Tail
C-GYNP
Type
A139
No current signal · last broadcast Jul 23, 17:55 UTC
Flights observed
422
Distinct callsigns
3
Country
CA
Last broadcast
Jul 23, 17:55 UTC

Last known position

Most recent position reported by Mode-S C0856A.

Country allocation

The ICAO 24-bit address C0856A 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 3 distinct

Callsign Airline Flights Last seen
GYNP - 222 2026-07-23
LF5 - 140 2026-06-06
CGYNP - 60 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 GYNP - Jul 23, 17:45 UTCJul 23, 17:55 UTC10m
2026-07-23 GYNP - Jul 23, 17:00 UTCJul 23, 17:10 UTC10m
2026-07-23 GYNP - Jul 23, 04:45 UTCJul 23, 04:55 UTC10m
2026-07-22 GYNP - Jul 22, 21:35 UTCJul 22, 22:25 UTC50m
2026-07-22 GYNP - Jul 22, 14:55 UTCJul 22, 15:25 UTC30m
2026-07-22 GYNP - Jul 22, 00:25 UTCJul 22, 01:00 UTC35m
2026-07-21 GYNP - Jul 21, 09:50 UTCJul 21, 10:05 UTC15m
2026-07-21 GYNP - Jul 21, 07:10 UTCJul 21, 07:25 UTC15m
2026-07-19 GYNP - Jul 19, 20:10 UTCJul 19, 20:20 UTC10m
2026-07-19 GYNP - Jul 19, 17:05 UTCJul 19, 17:15 UTC10m
2026-07-18 GYNP - Jul 18, 18:15 UTCJul 18, 18:25 UTC10m
2026-07-13 GYNP - Jul 13, 20:30 UTCJul 13, 20:45 UTC15m
2026-07-13 GYNP - Jul 13, 15:55 UTCJul 13, 16:35 UTC40m
2026-07-13 GYNP - Jul 13, 00:01 UTCJul 13, 03:01 UTC3h 0m
2026-07-12 GYNP - Jul 12, 10:25 UTCJul 12, 11:10 UTC45m
2026-07-12 GYNP - Jul 12, 05:35 UTCJul 12, 05:50 UTC15m
2026-07-12 GYNP - Jul 12, 02:45 UTCJul 12, 03:05 UTC20m
2026-07-12 GYNP - Jul 12, 01:30 UTCJul 12, 02:05 UTC35m
2026-07-11 GYNP - Jul 11, 23:40 UTCJul 12, 00:30 UTC50m
2026-07-11 GYNP - Jul 11, 21:25 UTCJul 11, 21:35 UTC10m
2026-07-11 GYNP - Jul 11, 20:10 UTCJul 11, 20:45 UTC35m
2026-07-11 GYNP YOO → YTZ Jul 11, 16:40 UTCJul 11, 16:55 UTC15m
2026-07-11 GYNP - Jul 11, 15:00 UTCJul 11, 15:20 UTC20m
2026-07-10 GYNP - Jul 10, 21:50 UTCJul 10, 23:10 UTC1h 20m
2026-07-10 GYNP - Jul 10, 20:55 UTCJul 10, 21:05 UTC10m
2026-07-10 GYNP - Jul 10, 20:10 UTCJul 10, 20:20 UTC10m
2026-07-10 GYNP - Jul 10, 17:45 UTCJul 10, 18:05 UTC20m
2026-07-10 GYNP - Jul 10, 15:30 UTCJul 10, 15:45 UTC15m
2026-07-10 GYNP - Jul 10, 13:25 UTCJul 10, 13:45 UTC20m
2026-07-10 GYNP - Jul 10, 07:25 UTCJul 10, 08:40 UTC1h 15m
2026-07-10 GYNP - Jul 10, 07:05 UTCJul 10, 07:15 UTC10m
2026-07-10 GYNP YTZ → YSB Jul 10, 04:45 UTCJul 10, 06:30 UTC1h 45m
2026-07-10 GYNP - Jul 10, 02:10 UTCJul 10, 02:45 UTC35m
2026-07-10 GYNP - Jul 10, 00:45 UTCJul 10, 01:05 UTC20m
2026-07-09 GYNP - Jul 9, 06:35 UTCJul 9, 06:45 UTC10m
2026-07-09 GYNP - Jul 9, 04:45 UTCJul 9, 05:45 UTC1h 0m
2026-07-08 GYNP - Jul 8, 18:50 UTCJul 8, 19:05 UTC15m
2026-07-08 GYNP - Jul 8, 17:05 UTCJul 8, 17:15 UTC10m
2026-07-08 GYNP - Jul 8, 12:50 UTCJul 8, 13:05 UTC15m
2026-07-08 GYNP - Jul 8, 10:35 UTCJul 8, 10:55 UTC20m
2026-07-08 GYNP - Jul 8, 08:05 UTCJul 8, 08:20 UTC15m
2026-07-08 GYNP - Jul 8, 07:10 UTCJul 8, 07:30 UTC20m
2026-07-08 GYNP - Jul 8, 05:35 UTCJul 8, 06:00 UTC25m
2026-07-08 GYNP - Jul 8, 02:25 UTCJul 8, 03:00 UTC35m
2026-07-07 GYNP - Jul 7, 23:30 UTCJul 8, 00:15 UTC45m
2026-07-07 GYNP - Jul 7, 21:55 UTCJul 7, 22:30 UTC35m
2026-07-07 GYNP - Jul 7, 19:00 UTCJul 7, 19:20 UTC20m
2026-07-07 GYNP - Jul 7, 05:00 UTCJul 7, 05:25 UTC25m
2026-07-07 GYNP - Jul 7, 03:45 UTCJul 7, 04:10 UTC25m
2026-07-07 GYNP - Jul 7, 03:00 UTCJul 7, 03:10 UTC10m

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

Mode-S C0856A frequently asked

What is Mode-S code C0856A?
C0856A is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GYNP.
Where is Mode-S C0856A registered?
Mode-S code C0856A is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0856A broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 17:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0856A, octal 60102552, decimal 12,617,066.
What flights does C0856A operate?
Mode-S C0856A has broadcast 3 distinct callsigns, including GYNP, LF5, CGYNP.