Apparatus

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sensors Mode-S transponder

C05735

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GHAQ · DE HAVILLAND DHC-3 Turbo Otter · operated by Harbour Air Ltd

Hex
C05735
Octal
60053465
Decimal
12,605,237
Country
CA
Tail
C-GHAQ
Type
DH3T
Broadcasting now · callsign CGHAQ · 2,800 ft
Flights observed
10
Distinct callsigns
1
Country
CA
Last broadcast
1d ago

Current position

C05735 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C05735 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 1 distinct

Callsign Airline Flights Last seen
CGHAQ - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 CGHAQ - Apr 13, 23:00 UTCApr 13, 23:20 UTC20m
2026-04-13 CGHAQ - Apr 13, 22:20 UTCApr 13, 22:40 UTC20m
2026-04-13 CGHAQ - Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 CGHAQ - Apr 13, 18:00 UTCApr 13, 18:40 UTC40m
2026-04-13 CGHAQ - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 CGHAQ - Apr 13, 15:00 UTCApr 13, 15:30 UTC30m
2026-04-13 CGHAQ - Apr 13, 00:05 UTCApr 13, 00:20 UTC15m
2026-04-12 CGHAQ - Apr 12, 19:50 UTCApr 12, 20:15 UTC25m
2026-04-12 CGHAQ - Apr 12, 18:35 UTCApr 12, 19:10 UTC35m
2026-04-12 CGHAQ - Apr 12, 17:15 UTCApr 12, 17:40 UTC25m

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

Mode-S C05735 frequently asked

What is Mode-S code C05735?
C05735 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GHAQ.
Where is Mode-S C05735 registered?
Mode-S code C05735 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C05735 broadcasting right now?
Yes. Mode-S C05735 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C05735, octal 60053465, decimal 12,605,237.
What flights does C05735 operate?
Mode-S C05735 has broadcast 1 distinct callsign, including CGHAQ.