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sensors Mode-S transponder

C057DB

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GHHA · DE HAVILLAND DHC-6 Twin Otter · operated by Harbour Air Ltd

Hex
C057DB
Octal
60053733
Decimal
12,605,403
Country
CA
Tail
C-GHHA
Type
DHC6
Broadcasting now · callsign CGHHA · 1,900 ft
Flights observed
455
Distinct callsigns
1
Country
CA
Last broadcast
Jul 26, 22:30 UTC

Current position

C057DB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C057DB 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
CGHHA - 455 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CGHHA CXH → YWH Jul 26, 21:50 UTCJul 26, 22:25 UTC35m
2026-07-26 CGHHA - Jul 26, 19:50 UTCJul 26, 20:20 UTC30m
2026-07-26 CGHHA CXH → YWH Jul 26, 18:50 UTCJul 26, 19:25 UTC35m
2026-07-26 CGHHA - Jul 26, 17:45 UTCJul 26, 18:15 UTC30m
2026-07-26 CGHHA CXH → YWH Jul 26, 15:05 UTCJul 26, 15:35 UTC30m
2026-07-26 CGHHA - Jul 26, 02:15 UTCJul 26, 02:45 UTC30m
2026-07-26 CGHHA - Jul 26, 01:10 UTCJul 26, 01:45 UTC35m
2026-07-26 CGHHA YWH → CXH Jul 26, 00:05 UTCJul 26, 00:35 UTC30m
2026-07-25 CGHHA - Jul 25, 22:05 UTCJul 25, 22:35 UTC30m
2026-07-25 CGHHA - Jul 25, 21:05 UTCJul 25, 21:35 UTC30m
2026-07-25 CGHHA - Jul 25, 19:55 UTCJul 25, 20:30 UTC35m
2026-07-25 CGHHA - Jul 25, 18:55 UTCJul 25, 19:25 UTC30m
2026-07-25 CGHHA CXH → YWH Jul 25, 15:45 UTCJul 25, 16:20 UTC35m
2026-07-25 CGHHA - Jul 25, 01:15 UTCJul 25, 01:45 UTC30m
2026-07-25 CGHHA - Jul 25, 00:05 UTCJul 25, 00:40 UTC35m
2026-07-24 CGHHA - Jul 24, 23:00 UTCJul 24, 23:30 UTC30m
2026-07-24 CGHHA CXH → YWH Jul 24, 20:15 UTCJul 24, 20:45 UTC30m
2026-07-24 CGHHA YWH → CXH Jul 24, 19:00 UTCJul 24, 19:30 UTC30m
2026-07-24 CGHHA - Jul 24, 16:30 UTCJul 24, 17:00 UTC30m
2026-07-24 CGHHA - Jul 24, 15:35 UTCJul 24, 16:05 UTC30m
2026-07-24 CGHHA CXH → YWH Jul 24, 14:45 UTCJul 24, 15:10 UTC25m
2026-07-24 CGHHA - Jul 24, 02:35 UTCJul 24, 03:05 UTC30m
2026-07-24 CGHHA CXH → YWH Jul 24, 01:45 UTCJul 24, 02:15 UTC30m
2026-07-24 CGHHA YWH → CXH Jul 24, 00:30 UTCJul 24, 00:55 UTC25m
2026-07-23 CGHHA - Jul 23, 23:10 UTCJul 23, 23:35 UTC25m
2026-07-23 CGHHA YWH → CXH Jul 23, 22:10 UTCJul 23, 22:35 UTC25m
2026-07-23 CGHHA - Jul 23, 19:00 UTCJul 23, 19:30 UTC30m
2026-07-23 CGHHA - Jul 23, 17:35 UTCJul 23, 18:05 UTC30m
2026-07-23 CGHHA CXH → YWH Jul 23, 16:30 UTCJul 23, 17:00 UTC30m
2026-07-23 CGHHA - Jul 23, 02:20 UTCJul 23, 02:45 UTC25m
2026-07-23 CGHHA - Jul 23, 01:20 UTCJul 23, 01:50 UTC30m
2026-07-23 CGHHA - Jul 23, 00:25 UTCJul 23, 00:50 UTC25m
2026-07-22 CGHHA CXH → YWH Jul 22, 23:10 UTCJul 22, 23:35 UTC25m
2026-07-22 CGHHA - Jul 22, 17:45 UTCJul 22, 19:00 UTC1h 15m
2026-07-22 CGHHA - Jul 22, 17:20 UTCJul 22, 17:35 UTC15m
2026-07-22 CGHHA YWH → CXH Jul 22, 14:40 UTCJul 22, 15:10 UTC30m
2026-07-22 CGHHA - Jul 22, 01:30 UTCJul 22, 01:55 UTC25m
2026-07-22 CGHHA - Jul 22, 00:35 UTCJul 22, 01:00 UTC25m
2026-07-21 CGHHA - Jul 21, 18:00 UTCJul 21, 18:30 UTC30m
2026-07-21 CGHHA - Jul 21, 16:55 UTCJul 21, 17:25 UTC30m
2026-07-21 CGHHA - Jul 21, 01:25 UTCJul 21, 01:55 UTC30m
2026-07-21 CGHHA - Jul 21, 00:30 UTCJul 21, 00:55 UTC25m
2026-07-20 CGHHA CXH → YWH Jul 20, 23:05 UTCJul 20, 23:35 UTC30m
2026-07-20 CGHHA - Jul 20, 21:10 UTCJul 20, 21:40 UTC30m
2026-07-20 CGHHA LKE → YWH Jul 20, 18:55 UTCJul 20, 19:25 UTC30m
2026-07-20 CGHHA YWH → LKE Jul 20, 17:30 UTCJul 20, 18:00 UTC30m
2026-07-20 CGHHA CXH → YWH Jul 20, 16:00 UTCJul 20, 16:25 UTC25m
2026-07-20 CGHHA - Jul 20, 02:20 UTCJul 20, 02:45 UTC25m
2026-07-20 CGHHA - Jul 20, 01:20 UTCJul 20, 01:50 UTC30m
2026-07-20 CGHHA - Jul 20, 00:25 UTCJul 20, 00:55 UTC30m

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

Mode-S C057DB frequently asked

What is Mode-S code C057DB?
C057DB is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GHHA.
Where is Mode-S C057DB registered?
Mode-S code C057DB is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C057DB broadcasting right now?
Yes. Mode-S C057DB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C057DB, octal 60053733, decimal 12,605,403.
What flights does C057DB operate?
Mode-S C057DB has broadcast 1 distinct callsign, including CGHHA.