Apparatus

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sensors Mode-S transponder

C04DDC

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GDMP · BOEING 737-800 · operated by Westjet

Hex
C04DDC
Octal
60046734
Decimal
12,602,844
Country
CA
Tail
C-GDMP
Type
B738
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
243
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S C04DDC.

Country allocation

The ICAO 24-bit address C04DDC 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
WJA113 WestJet 4 2026-06-12
WJA1021 - 4 2026-06-14
WJA710 - 3 2026-07-01
WJA601 - 3 2026-07-02
WJA559 WestJet 3 2026-06-03
WJA432 - 3 2026-04-14
WJA384 WestJet 3 2026-07-19
WJA383 - 3 2026-07-15
WJA136 WestJet 3 2026-06-02
WJA114 WestJet 3 2026-06-12
WJA1113 WestJet 3 2026-06-21
WJA1112 WestJet 3 2026-06-21
WJA873 WestJet 2 2026-05-26
WJA789 WestJet 2 2026-05-18
WJA755 WestJet 2 2026-04-17
WJA754 - 2 2026-04-17
WJA675 - 2 2026-06-28
WJA640 - 2 2026-07-07
WJA633 - 2 2026-07-17
WJA592 WestJet 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA178 YVR → YEG Jul 26, 22:35 UTCJul 26, 23:00 UTC25m
2026-07-26 WJA307 YEG → YXX Jul 26, 18:40 UTCJul 26, 20:00 UTC1h 20m
2026-07-26 WJA302 YVR → YQR Jul 26, 15:30 UTCJul 26, 16:35 UTC1h 5m
2026-07-26 WJA129 YYC → YVR Jul 26, 02:25 UTCJul 26, 03:35 UTC1h 10m
2026-07-25 WJA122 YVR → YYC Jul 25, 23:35 UTCJul 26, 00:30 UTC55m
2026-07-25 WJA681 YQR → YVR Jul 25, 18:55 UTCJul 25, 21:00 UTC2h 5m
2026-07-25 WJA680 YVR → YQR Jul 25, 15:55 UTCJul 25, 17:20 UTC1h 25m
2026-07-25 WJA731 YYZ → YVR Jul 25, 02:40 UTCJul 25, 07:40 UTC5h 0m
2026-07-24 WJA2566 YYZ → MBJ Jul 24, 13:00 UTCJul 24, 15:45 UTC2h 45m
2026-07-24 WJA2566 YYZ → MBJ Jul 24, 12:55 UTCJul 25, 07:40 UTC18h 45m
2026-07-23 WJA809 YHZ → YYZ Jul 23, 18:50 UTCJul 23, 20:45 UTC1h 55m
2026-07-23 WJA802 YYZ → YHZ Jul 23, 15:05 UTCJul 23, 16:40 UTC1h 35m
2026-07-23 WJA801 YHZ → YYZ Jul 23, 11:50 UTCJul 23, 13:45 UTC1h 55m
2026-07-22 WJA1051 MCO → YYT Jul 22, 21:45 UTCJul 22, 23:30 UTC1h 45m
2026-07-22 WJA1620 YYC → DTW Jul 22, 17:15 UTCJul 22, 20:05 UTC2h 50m
2026-07-21 WJA1595 ATL → YYC Jul 21, 23:40 UTCJul 22, 03:55 UTC4h 15m
2026-07-21 WJA134 YVR → YYC Jul 21, 05:34 UTCJul 22, 04:00 UTC22h 26m
2026-07-20 WJA1103 LAX → YVR Jul 20, 19:25 UTCJul 21, 19:00 UTC23h 35m
2026-07-20 WJA1102 YYZ → LAX Jul 20, 15:32 UTCJul 21, 06:40 UTC15h 8m
2026-07-19 WJA384 YWG → YYZ Jul 19, 21:40 UTCJul 19, 23:40 UTC2h 0m
2026-07-19 WJA384 YWG → YYZ Jul 19, 21:39 UTCJul 20, 21:00 UTC23h 22m
2026-07-19 WJA538 YVR → YWG Jul 19, 16:55 UTCJul 19, 19:15 UTC2h 20m
2026-07-19 WJA124 - Jul 19, 00:50 UTCJul 19, 01:50 UTC1h 0m
2026-07-19 WJA124 YVR → YYC Jul 19, 00:47 UTCJul 19, 23:00 UTC22h 14m
2026-07-18 WJA315 - Jul 18, 21:10 UTCJul 18, 22:25 UTC1h 15m
2026-07-18 WJA308 YVR → YEG Jul 18, 18:25 UTCJul 18, 19:30 UTC1h 5m
2026-07-18 WJA109 YYC → YVR Jul 18, 15:45 UTCJul 18, 17:00 UTC1h 15m
2026-07-17 WJA633 YYZ → YYC Jul 17, 13:16 UTCJul 18, 04:15 UTC15h 0m
2026-07-17 WJA633 - Jul 17, 13:20 UTCJul 17, 17:25 UTC4h 5m
2026-07-16 WJA2588 YYZ → YYZ Jul 16, 14:00 UTCJul 17, 00:14 UTC10h 15m
2026-07-15 WJA541 YWG → YVR Jul 15, 20:29 UTCJul 16, 15:10 UTC18h 41m
2026-07-15 WJA383 YYZ → YWG Jul 15, 16:44 UTCJul 16, 15:00 UTC22h 16m
2026-07-15 WJA570 - Jul 15, 12:10 UTCJul 15, 13:00 UTC50m
2026-07-15 WJA570 YXE → YYZ Jul 15, 12:09 UTCJul 16, 10:10 UTC22h 1m
2026-07-15 WJA571 YYZ → YXE Jul 15, 05:40 UTCJul 15, 09:00 UTC3h 20m
2026-07-15 WJA460 - Jul 15, 00:25 UTCJul 15, 03:25 UTC3h 0m
2026-07-14 WJA455 YYZ → YEG Jul 14, 18:45 UTCJul 14, 22:40 UTC3h 55m
2026-07-14 WJA859 YUL → YYZ Jul 14, 11:00 UTCJul 14, 11:50 UTC50m
2026-07-14 WJA858 YYZ → YUL Jul 14, 03:05 UTCJul 14, 04:05 UTC1h 0m
2026-07-13 WJA2701 YYZ → YYZ Jul 13, 14:05 UTCJul 13, 23:50 UTC9h 45m
2026-07-12 WJA720 YVR → YYZ Jul 12, 01:10 UTCJul 12, 05:05 UTC3h 55m
2026-07-11 WJA541 YWG → YVR Jul 11, 20:45 UTCJul 11, 23:40 UTC2h 55m
2026-07-11 WJA383 YYZ → YWG Jul 11, 17:10 UTCJul 11, 19:30 UTC2h 20m
2026-07-10 WJA438 - Jul 10, 13:10 UTCJul 10, 16:25 UTC3h 15m
2026-07-10 WJA469 YYZ → YEG Jul 10, 02:40 UTCJul 10, 06:30 UTC3h 50m
2026-07-09 WJA2565 - Jul 9, 19:45 UTCJul 9, 23:55 UTC4h 10m
2026-07-09 WJA2564 - Jul 9, 12:35 UTCJul 9, 17:00 UTC4h 25m
2026-07-08 WJA434 - Jul 8, 19:35 UTCJul 8, 22:50 UTC3h 15m
2026-07-07 WJA640 YYC → YYZ Jul 7, 20:29 UTCJul 8, 06:35 UTC10h 6m
2026-07-07 WJA637 YYZ → YYC Jul 7, 15:02 UTCJul 8, 06:35 UTC15h 33m

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

Mode-S C04DDC frequently asked

What is Mode-S code C04DDC?
C04DDC is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GDMP.
Where is Mode-S C04DDC registered?
Mode-S code C04DDC is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C04DDC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C04DDC, octal 60046734, decimal 12,602,844.
What flights does C04DDC operate?
Mode-S C04DDC has broadcast 20 distinct callsigns, including WJA113, WJA1021, WJA710, WJA601, WJA559.