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sensors Mode-S transponder

C0637C

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C0637C
Octal
60061574
Decimal
12,608,380
Country
CA
Tail
C-GLRN
Type
B738
Transponder active on ground
Flights observed
240
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S C0637C.

Country allocation

The ICAO 24-bit address C0637C 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
WJA592 WestJet 6 2026-07-26
WJA2603 WestJet 6 2026-04-23
WJA1553 WestJet 6 2026-07-24
WJA319 WestJet 5 2026-06-24
WJA2609 WestJet 5 2026-04-23
WJA134 WestJet 5 2026-05-17
WJA845 WestJet 4 2026-04-25
WJA844 WestJet 4 2026-04-25
WJA593 WestJet 4 2026-07-26
WJA553 WestJet 4 2026-05-15
WJA502 WestJet 4 2026-04-22
WJA397 WestJet 4 2026-05-25
WJA393 - 4 2026-07-10
WJA392 WestJet 4 2026-05-25
WJA2602 WestJet 4 2026-04-19
WJA224 WestJet 4 2026-07-26
WJA828 WestJet 3 2026-05-26
WJA552 WestJet 3 2026-05-11
WJA518 WestJet 3 2026-05-26
WJA515 WestJet 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA593 YHZ → YWG Jul 26, 22:40 UTCJul 26, 23:00 UTC20m
2026-07-26 WJA592 YYZ → YUL Jul 26, 18:10 UTCJul 26, 21:10 UTC3h 0m
2026-07-26 WJA224 YEG → YOW Jul 26, 15:20 UTCJul 26, 16:50 UTC1h 30m
2026-07-26 WJA514 YLW → YYZ Jul 26, 12:35 UTCJul 26, 13:40 UTC1h 5m
2026-07-25 WJA794 YYC → YFC Jul 25, 15:53 UTCJul 26, 13:45 UTC21h 53m
2026-07-24 WJA1502 YEG → MCO Jul 24, 22:08 UTCJul 25, 19:50 UTC21h 42m
2026-07-24 WJA1553 SEA → YYC Jul 24, 18:06 UTCJul 25, 17:00 UTC22h 54m
2026-07-24 WJA1550 YYC → SEA Jul 24, 15:01 UTCJul 25, 04:05 UTC13h 4m
2026-07-23 WJA593 YHZ → YWG Jul 23, 22:47 UTCJul 24, 19:20 UTC20h 33m
2026-07-23 WJA592 YYZ → YUL Jul 23, 18:29 UTCJul 24, 16:35 UTC22h 6m
2026-07-23 WJA478 YXX → YYC Jul 23, 03:05 UTCJul 24, 02:35 UTC23h 30m
2026-07-23 WJA479 YYC → YLW Jul 23, 01:01 UTCJul 23, 23:00 UTC21h 59m
2026-07-22 WJA190 YLW → YEG Jul 22, 22:35 UTCJul 22, 23:00 UTC25m
2026-07-22 WJA187 YYC → YLW Jul 22, 20:40 UTCJul 22, 21:25 UTC45m
2026-07-22 WJA187 YYC → YLW Jul 22, 20:35 UTCJul 23, 19:00 UTC22h 25m
2026-07-22 WJA629 YYZ → YYC Jul 22, 12:25 UTCJul 22, 16:25 UTC4h 0m
2026-07-20 WJA188 YLW → YYC Jul 20, 19:12 UTCJul 21, 09:15 UTC14h 3m
2026-07-20 WJA185 YYC → YLW Jul 20, 17:15 UTCJul 21, 09:15 UTC16h 0m
2026-07-20 WJA184 YLW → YYC Jul 20, 15:05 UTCJul 20, 15:50 UTC45m
2026-07-19 WJA1424 YEG → LAX Jul 19, 19:55 UTCJul 19, 23:00 UTC3h 5m
2026-07-19 WJA1424 YEG → LAX Jul 19, 19:50 UTCJul 20, 18:05 UTC22h 16m
2026-07-19 WJA302 YVR → YQR Jul 19, 15:20 UTCJul 19, 16:30 UTC1h 10m
2026-07-19 WJA321 YQR → YEG Jul 19, 07:00 UTCJul 19, 08:10 UTC1h 10m
2026-07-18 WJA463 YYC → YYJ Jul 18, 21:40 UTCJul 19, 01:35 UTC3h 55m
2026-07-18 WJA444 - Jul 18, 15:50 UTCJul 18, 19:10 UTC3h 20m
2026-07-18 WJA150 YYC → YEG Jul 18, 02:55 UTCJul 18, 03:25 UTC30m
2026-07-17 WJA231 YWG → YYC Jul 17, 22:15 UTCJul 18, 00:04 UTC1h 50m
2026-07-17 WJA129 YYC → YVR Jul 17, 02:20 UTCJul 18, 00:04 UTC21h 45m
2026-07-16 WJA1606 YVR → ATL Jul 16, 06:27 UTCJul 17, 02:59 UTC20h 33m
2026-07-16 WJA1606 - Jul 16, 06:30 UTCJul 16, 09:00 UTC2h 30m
2026-07-15 WJA793 - Jul 15, 21:05 UTCJul 16, 03:30 UTC6h 25m
2026-07-14 WJA792 - Jul 14, 19:10 UTCJul 14, 23:50 UTC4h 39m
2026-07-14 WJA105 YYC → YVR Jul 14, 13:25 UTCJul 14, 14:35 UTC1h 10m
2026-07-14 WJA155 - Jul 14, 01:40 UTCJul 14, 02:15 UTC35m
2026-07-13 WJA156 YYC → YEG Jul 13, 23:40 UTCJul 14, 00:10 UTC30m
2026-07-13 WJA1019 - Jul 13, 19:05 UTCJul 13, 21:40 UTC2h 35m
2026-07-13 WJA1018 YYC → SAN Jul 13, 14:30 UTCJul 13, 17:55 UTC3h 25m
2026-07-12 WJA823 YYC → YYC Jul 12, 17:20 UTCJul 13, 05:15 UTC11h 55m
2026-07-12 WJA102 - Jul 12, 13:01 UTCJul 12, 13:55 UTC55m
2026-07-12 WJA731 - Jul 12, 02:50 UTCJul 12, 07:35 UTC4h 45m
2026-07-11 WJA1181 RSW → YYZ Jul 11, 21:40 UTCJul 12, 00:10 UTC2h 30m
2026-07-11 WJA1180 - Jul 11, 17:45 UTCJul 11, 20:30 UTC2h 45m
2026-07-11 WJA626 YYC → YYZ Jul 11, 12:20 UTCJul 11, 15:35 UTC3h 15m
2026-07-10 WJA393 - Jul 10, 12:05 UTCJul 10, 13:15 UTC1h 10m
2026-07-10 WJA393 YQR → YYC Jul 10, 12:00 UTCJul 11, 06:40 UTC18h 41m
2026-07-09 WJA222 - Jul 9, 14:25 UTCJul 9, 15:00 UTC35m
2026-07-09 WJA222 YYC → YWG Jul 9, 14:25 UTCJul 10, 13:00 UTC22h 36m
2026-07-08 WJA1595 ATL → YYC Jul 8, 00:00 UTCJul 8, 04:20 UTC4h 20m
2026-07-07 WJA1592 YYC → ATL Jul 7, 17:55 UTCJul 7, 21:50 UTC3h 55m
2026-07-06 WJA1553 SEA → YYC Jul 6, 18:20 UTCJul 6, 19:20 UTC1h 0m

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

Mode-S C0637C frequently asked

What is Mode-S code C0637C?
C0637C is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GLRN.
Where is Mode-S C0637C registered?
Mode-S code C0637C is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0637C broadcasting right now?
Mode-S C0637C is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0637C, octal 60061574, decimal 12,608,380.
What flights does C0637C operate?
Mode-S C0637C has broadcast 20 distinct callsigns, including WJA592, WJA2603, WJA1553, WJA319, WJA2609.