Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast 2h ago
Flights observed
134
Distinct callsigns
1
Country
CA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C057DB.

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 - 134 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CGHHA - May 30, 02:15 UTCMay 30, 02:45 UTC30m
2026-05-30 CGHHA - May 30, 01:20 UTCMay 30, 01:50 UTC30m
2026-05-30 CGHHA YWH → CXH May 30, 00:20 UTCMay 30, 00:50 UTC30m
2026-05-29 CGHHA - May 29, 23:05 UTCMay 29, 23:35 UTC30m
2026-05-29 CGHHA - May 29, 22:05 UTCMay 29, 22:35 UTC30m
2026-05-29 CGHHA CXH → YWH May 29, 21:10 UTCMay 29, 21:45 UTC35m
2026-05-29 CGHHA - May 29, 18:05 UTCMay 29, 18:35 UTC30m
2026-05-29 CGHHA - May 29, 16:50 UTCMay 29, 17:20 UTC30m
2026-05-29 CGHHA - May 29, 02:20 UTCMay 29, 02:45 UTC25m
2026-05-29 CGHHA - May 29, 01:20 UTCMay 29, 01:50 UTC30m
2026-05-29 CGHHA - May 29, 00:25 UTCMay 29, 00:55 UTC30m
2026-05-28 CGHHA CXH → YWH May 28, 23:25 UTCMay 28, 23:55 UTC30m
2026-05-28 CGHHA YWH → CXH May 28, 22:05 UTCMay 28, 22:35 UTC30m
2026-05-28 CGHHA - May 28, 18:10 UTCMay 28, 18:40 UTC30m
2026-05-28 CGHHA - May 28, 17:05 UTCMay 28, 17:35 UTC30m
2026-05-28 CGHHA CXH → YWH May 28, 15:55 UTCMay 28, 16:20 UTC25m
2026-05-28 CGHHA YWH → CXH May 28, 00:20 UTCMay 28, 00:55 UTC35m
2026-05-27 CGHHA - May 27, 23:05 UTCMay 27, 23:35 UTC30m
2026-05-27 CGHHA - May 27, 22:05 UTCMay 27, 22:35 UTC30m
2026-05-27 CGHHA - May 27, 18:10 UTCMay 27, 18:40 UTC30m
2026-05-27 CGHHA - May 27, 17:10 UTCMay 27, 17:40 UTC30m
2026-05-27 CGHHA CXH → YWH May 27, 16:00 UTCMay 27, 16:25 UTC25m
2026-05-27 CGHHA - May 27, 00:19 UTCMay 27, 00:44 UTC25m
2026-05-26 CGHHA CXH → YWH May 26, 23:05 UTCMay 26, 23:35 UTC30m
2026-05-26 CGHHA - May 26, 17:44 UTCMay 26, 18:19 UTC35m
2026-05-26 CGHHA CXH → YWH May 26, 16:20 UTCMay 26, 16:50 UTC30m
2026-05-26 CGHHA - May 26, 01:24 UTCMay 26, 01:55 UTC30m
2026-05-26 CGHHA - May 26, 00:04 UTCMay 26, 00:35 UTC30m
2026-05-25 CGHHA - May 25, 23:10 UTCMay 25, 23:40 UTC30m
2026-05-25 CGHHA CXH → YWH May 25, 21:40 UTCMay 25, 22:15 UTC35m
2026-05-25 CGHHA - May 25, 19:59 UTCMay 25, 20:24 UTC25m
2026-05-25 CGHHA - May 25, 16:30 UTCMay 25, 16:55 UTC25m
2026-05-25 CGHHA - May 25, 15:35 UTCMay 25, 16:05 UTC30m
2026-05-25 CGHHA CXH → YWH May 25, 14:30 UTCMay 25, 15:05 UTC35m
2026-05-23 CGHHA CXH → CXH May 23, 19:00 UTCMay 23, 20:20 UTC1h 20m
2026-05-22 CGHHA - May 22, 19:10 UTCMay 22, 20:10 UTC1h 0m
2026-05-22 CGHHA CXH → CXH May 22, 00:15 UTCMay 22, 00:25 UTC10m
2026-05-21 CGHHA - May 21, 18:55 UTCMay 21, 19:25 UTC30m
2026-05-21 CGHHA CXH → YWH May 21, 17:55 UTCMay 21, 18:25 UTC30m
2026-05-21 CGHHA - May 21, 15:40 UTCMay 21, 16:10 UTC30m
2026-05-21 CGHHA CXH → YWH May 21, 14:40 UTCMay 21, 15:10 UTC30m
2026-05-21 CGHHA YWH → CXH May 21, 00:20 UTCMay 21, 00:55 UTC35m
2026-05-20 CGHHA CXH → YWH May 20, 19:05 UTCMay 20, 19:30 UTC25m
2026-05-20 CGHHA YWH → CXH May 20, 17:45 UTCMay 20, 18:15 UTC30m
2026-05-20 CGHHA CXH → YWH May 20, 15:55 UTCMay 20, 16:20 UTC25m
2026-05-19 CGHHA YWH → CXH May 19, 00:20 UTCMay 19, 00:45 UTC25m
2026-05-18 CGHHA YVR → YWH May 18, 23:05 UTCMay 18, 23:30 UTC25m
2026-05-18 CGHHA YWH → CXH May 18, 22:00 UTCMay 18, 22:30 UTC30m
2026-05-18 CGHHA - May 18, 18:05 UTCMay 18, 18:30 UTC24m
2026-05-18 CGHHA YWH → CXH May 18, 17:00 UTCMay 18, 17:25 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-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?
No active broadcast right now. Last signal was 2h ago.
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.