Apparatus

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sensors Mode-S transponder

C0172E

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FIUF · BOEING 777-200LR · operated by Air Canada

Hex
C0172E
Octal
60013456
Decimal
12,588,846
Country
CA
Tail
C-FIUF
Type
B77L
Broadcasting now · callsign ACA43 · 34,000 ft
Flights observed
115
Distinct callsigns
13
Country
CA
Last broadcast
13m ago

Current position

C0172E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C0172E 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 13 distinct

Callsign Airline Flights Last seen
ACA34 Air Canada 32 2026-05-27
ACA33 Air Canada 29 2026-05-26
ACA42 Air Canada 17 2026-05-29
ACA43 Air Canada 15 2026-05-29
ACA881 Air Canada 6 2026-04-13
ACA146 Air Canada 4 2026-04-18
ACA139 Air Canada 4 2026-04-18
ACA880 Air Canada 3 2026-04-13
ACA987 Air Canada 1 2026-04-21
ACA873 Air Canada 1 2026-05-02
ACA872 Air Canada 1 2026-05-02
ACA855 Air Canada 1 2026-04-19
ACA852 Air Canada 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA43 DEL → YYZ May 29, 18:00 UTCMay 30, 01:30 UTC7h 30m
2026-05-29 ACA42 YYZ → DEL May 29, 01:30 UTCMay 29, 15:40 UTC14h 10m
2026-05-27 ACA34 SYD → YVR May 27, 18:25 UTCMay 27, 22:40 UTC4h 15m
2026-05-27 ACA34 SYD → YVR May 27, 01:52 UTCMay 27, 15:11 UTC13h 19m
2026-05-27 ACA34 SYD → YVR May 27, 01:54 UTCMay 27, 02:59 UTC1h 5m
2026-05-26 ACA33 YVR → SYD May 26, 22:29 UTCMay 26, 23:45 UTC1h 15m
2026-05-26 ACA33 YVR → SYD May 26, 06:10 UTCMay 26, 21:20 UTC15h 10m
2026-05-25 ACA33 YVR → SYD May 25, 23:19 UTCMay 26, 03:30 UTC4h 10m
2026-05-25 ACA33 YVR → SYD May 25, 23:17 UTCMay 26, 03:29 UTC4h 12m
2026-05-25 ACA34 SYD → YVR May 25, 16:30 UTCMay 25, 20:24 UTC3h 54m
2026-05-25 ACA34 SYD → YVR May 25, 12:45 UTCMay 25, 13:10 UTC25m
2026-05-24 ACA34 SYD → YVR May 24, 23:35 UTCMay 24, 23:46 UTC11m
2026-05-24 ACA34 SYD → YVR May 24, 23:35 UTCMay 25, 13:03 UTC13h 28m
2026-05-24 ACA33 YVR → SYD May 24, 06:20 UTCMay 24, 21:05 UTC14h 45m
2026-05-23 ACA33 YVR → SYD May 23, 23:55 UTCMay 24, 04:20 UTC4h 25m
2026-05-23 ACA34 SYD → YVR May 23, 16:30 UTCMay 23, 20:20 UTC3h 51m
2026-05-22 ACA34 SYD → YVR May 22, 23:40 UTCMay 23, 13:30 UTC13h 49m
2026-05-22 ACA33 YVR → SYD May 22, 06:10 UTCMay 22, 19:30 UTC13h 20m
2026-05-22 ACA33 YVR → SYD May 22, 06:07 UTCMay 22, 20:38 UTC14h 31m
2026-05-21 ACA33 YVR → SYD May 21, 23:35 UTCMay 22, 03:50 UTC4h 15m
2026-05-19 ACA43 DEL → YYZ May 19, 18:10 UTCMay 20, 09:15 UTC15h 6m
2026-05-19 ACA42 YYZ → DEL May 19, 01:04 UTCMay 19, 15:11 UTC14h 7m
2026-05-19 ACA42 YYZ → DEL May 19, 01:05 UTCMay 19, 15:20 UTC14h 15m
2026-05-18 ACA34 SYD → YVR May 18, 16:35 UTCMay 18, 20:25 UTC3h 49m
2026-05-18 ACA34 SYD → YVR May 18, 00:05 UTCMay 18, 13:40 UTC13h 35m
2026-05-17 ACA33 YVR → SYD May 17, 06:10 UTCMay 17, 21:01 UTC14h 50m
2026-05-16 ACA33 YVR → SYD May 16, 23:30 UTCMay 17, 03:50 UTC4h 20m
2026-05-16 ACA34 SYD → YVR May 16, 16:45 UTCMay 16, 20:25 UTC3h 40m
2026-05-16 ACA34 SYD → YVR May 16, 14:20 UTCMay 16, 14:55 UTC35m
2026-05-16 ACA34 SYD → YVR May 16, 01:10 UTCMay 16, 02:20 UTC1h 10m
2026-05-15 ACA33 YVR → SYD May 15, 23:28 UTCMay 16, 03:41 UTC4h 13m
2026-05-15 ACA33 YVR → SYD May 15, 07:20 UTCMay 15, 22:20 UTC14h 59m
2026-05-15 ACA33 YVR → SYD May 15, 00:30 UTCMay 15, 04:55 UTC4h 25m
2026-05-13 ACA43 DEL → YYZ May 13, 18:25 UTCMay 13, 19:15 UTC50m
2026-05-13 ACA42 YYZ → DEL May 13, 01:20 UTCMay 13, 15:52 UTC14h 32m
2026-05-11 ACA43 DEL → YYZ May 11, 17:40 UTCMay 12, 09:05 UTC15h 25m
2026-05-11 ACA43 DEL → YYZ May 11, 17:38 UTCMay 12, 08:55 UTC15h 17m
2026-05-11 ACA42 YYZ → DEL May 11, 00:05 UTCMay 11, 01:30 UTC1h 25m
2026-05-11 ACA42 YYZ → DEL May 11, 00:04 UTCMay 11, 13:34 UTC13h 30m
2026-05-09 ACA43 DEL → YYZ May 9, 17:30 UTCMay 10, 08:54 UTC15h 25m
2026-05-09 ACA42 YYZ → DEL May 9, 05:15 UTCMay 9, 14:15 UTC9h 0m
2026-05-09 ACA42 YYZ → DEL May 9, 00:00 UTCMay 9, 01:30 UTC1h 30m
2026-05-07 ACA43 DEL → YYZ May 7, 17:55 UTCMay 8, 09:04 UTC15h 10m
2026-05-07 ACA42 YYZ → DEL May 7, 06:25 UTCMay 7, 15:20 UTC8h 55m
2026-05-07 ACA42 YYZ → DEL May 7, 01:20 UTCMay 7, 02:20 UTC1h 0m
2026-05-06 ACA34 SYD → YVR May 6, 16:30 UTCMay 6, 20:15 UTC3h 44m
2026-05-06 ACA34 SYD → YVR May 6, 00:05 UTCMay 6, 13:45 UTC13h 40m
2026-05-05 ACA33 YVR → SYD May 5, 06:15 UTCMay 5, 21:10 UTC14h 55m
2026-05-04 ACA33 YVR → SYD May 4, 23:20 UTCMay 5, 03:40 UTC4h 20m
2026-05-04 ACA33 YVR → SYD May 4, 23:18 UTCMay 5, 03:29 UTC4h 11m

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

Mode-S C0172E frequently asked

What is Mode-S code C0172E?
C0172E is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FIUF.
Where is Mode-S C0172E registered?
Mode-S code C0172E is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0172E broadcasting right now?
Yes. Mode-S C0172E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0172E, octal 60013456, decimal 12,588,846.
What flights does C0172E operate?
Mode-S C0172E has broadcast 13 distinct callsigns, including ACA34, ACA33, ACA42, ACA43, ACA881.