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sensors Mode-S transponder

C030EF

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FSNU · BOEING 737 MAX 8 · operated by Air Canada

Hex
C030EF
Octal
60030357
Decimal
12,595,439
Country
CA
Tail
C-FSNU
Type
B38M
No current signal · last broadcast 10h ago
Flights observed
365
Distinct callsigns
20
Country
CA
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S C030EF.

Country allocation

The ICAO 24-bit address C030EF 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
ACA868 - 15 2026-06-21
ACA869 - 14 2026-06-22
ACA600 - 13 2026-06-21
ACA617 - 12 2026-06-22
ACA128 - 11 2026-06-23
ACA125 - 10 2026-06-23
ACA192 - 8 2026-06-19
ACA191 - 8 2026-06-23
ROU2103 - 7 2026-07-13
ROU2102 - 7 2026-07-13
ACA792 - 7 2026-06-20
ACA791 - 7 2026-06-20
ACA985 - 6 2026-06-15
ACA995 Air Canada 5 2026-06-09
ACA407 Air Canada 5 2026-05-31
ACA402 Air Canada 5 2026-05-31
ACA195 Air Canada 5 2026-06-19
ACA146 Air Canada 5 2026-05-11
ACA129 Air Canada 5 2026-04-28
ACA194 Air Canada 4 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ROU2115 YYZ → YYZ Jul 13, 18:40 UTCJul 14, 01:35 UTC6h 55m
2026-07-13 ROU2103 - Jul 13, 15:25 UTCJul 13, 16:25 UTC1h 0m
2026-07-13 ROU2103 - Jul 13, 11:00 UTCJul 13, 11:15 UTC15m
2026-07-13 ROU2102 - Jul 13, 08:40 UTCJul 13, 09:00 UTC20m
2026-07-13 ROU2102 - Jul 13, 03:50 UTCJul 13, 05:01 UTC1h 10m
2026-07-12 ROU2115 YYZ → YYZ Jul 12, 19:15 UTCJul 13, 02:01 UTC6h 45m
2026-07-12 ROU2103 - Jul 12, 12:10 UTCJul 12, 12:30 UTC20m
2026-07-12 ROU2103 KEF → YYZ Jul 12, 12:10 UTCJul 12, 17:23 UTC5h 13m
2026-07-12 ROU2102 - Jul 12, 10:05 UTCJul 12, 10:20 UTC15m
2026-07-12 ROU2102 - Jul 12, 05:15 UTCJul 12, 06:25 UTC1h 10m
2026-07-11 ROU2107 - Jul 11, 23:00 UTCJul 12, 02:55 UTC3h 55m
2026-07-11 ROU2107 SXM → YYZ Jul 11, 22:43 UTCJul 12, 02:45 UTC4h 2m
2026-07-11 ROU2106 - Jul 11, 17:20 UTCJul 11, 21:15 UTC3h 55m
2026-07-11 ROU2103 - Jul 11, 10:15 UTCJul 11, 15:45 UTC5h 30m
2026-07-11 ROU2103 KEF → YYZ Jul 11, 10:15 UTCJul 11, 15:39 UTC5h 24m
2026-07-11 ROU2102 - Jul 11, 08:05 UTCJul 11, 08:20 UTC15m
2026-07-11 ROU2102 - Jul 11, 03:25 UTCJul 11, 04:30 UTC1h 5m
2026-07-10 ROU1879 - Jul 10, 23:00 UTCJul 11, 00:20 UTC1h 20m
2026-07-10 ROU1879 - Jul 10, 19:30 UTCJul 10, 19:40 UTC10m
2026-07-10 ROU1879 UVF → YYZ Jul 10, 19:26 UTCJul 11, 00:14 UTC4h 48m
2026-07-10 ROU1878 - Jul 10, 13:10 UTCJul 10, 14:15 UTC1h 5m
2026-07-09 ROU2114 YYZ → YYZ Jul 9, 18:20 UTCJul 10, 01:20 UTC7h 0m
2026-07-09 ROU2103 - Jul 9, 10:20 UTCJul 9, 15:50 UTC5h 30m
2026-07-09 ROU2102 YYZ → KEF Jul 9, 03:35 UTCJul 9, 08:30 UTC4h 55m
2026-07-08 ROU1859 - Jul 8, 20:35 UTCJul 9, 00:40 UTC4h 5m
2026-07-08 ROU1859 - Jul 8, 19:50 UTCJul 8, 20:05 UTC15m
2026-07-08 ROU1859 GND → YYZ Jul 8, 19:40 UTCJul 9, 00:33 UTC4h 53m
2026-07-08 ROU1858 - Jul 8, 13:20 UTCJul 8, 17:25 UTC4h 5m
2026-07-08 ROU1967 - Jul 8, 02:25 UTCJul 8, 03:05 UTC40m
2026-07-08 ROU1960 - Jul 8, 00:25 UTCJul 8, 01:05 UTC40m
2026-07-07 ROU1838 YYZ → YYZ Jul 7, 13:00 UTCJul 7, 21:30 UTC8h 30m
2026-07-07 ROU1967 - Jul 7, 03:05 UTCJul 7, 03:50 UTC45m
2026-07-07 ROU1960 - Jul 7, 01:35 UTCJul 7, 02:10 UTC35m
2026-07-06 ROU1947 - Jul 6, 23:00 UTCJul 6, 23:55 UTC55m
2026-07-06 ROU1942 - Jul 6, 21:00 UTCJul 6, 21:40 UTC40m
2026-07-06 ROU1933 - Jul 6, 18:30 UTCJul 6, 19:20 UTC50m
2026-07-06 ROU1932 - Jul 6, 16:30 UTCJul 6, 17:15 UTC45m
2026-07-06 ROU1919 - Jul 6, 14:15 UTCJul 6, 15:00 UTC45m
2026-07-06 ROU1916 - Jul 6, 12:25 UTCJul 6, 13:05 UTC40m
2026-07-06 ROU2053 - Jul 6, 08:40 UTCJul 6, 11:00 UTC2h 20m
2026-07-06 ROU2053 YYT → YYZ Jul 6, 07:59 UTCJul 6, 10:50 UTC2h 51m
2026-07-06 ROU2054 - Jul 6, 01:30 UTCJul 6, 03:20 UTC1h 50m
2026-07-06 ROU2054 YYZ → YYT Jul 6, 01:28 UTCJul 6, 03:46 UTC2h 18m
2026-07-05 ROU1996 - Jul 5, 19:50 UTCJul 5, 23:25 UTC3h 35m
2026-07-05 ROU1996 YLW → YYZ Jul 5, 19:47 UTCJul 5, 23:10 UTC3h 23m
2026-07-05 ROU1997 YYZ → YLW Jul 5, 13:45 UTCJul 5, 18:10 UTC4h 25m
2026-07-05 ROU1998 - Jul 5, 07:20 UTCJul 5, 10:50 UTC3h 30m
2026-07-05 ROU1999 - Jul 5, 01:25 UTCJul 5, 05:55 UTC4h 30m
2026-07-04 ROU1996 - Jul 4, 19:45 UTCJul 4, 23:25 UTC3h 40m
2026-06-23 ACA191 YYZ → YLW Jun 23, 13:34 UTCJun 23, 17:50 UTC4h 15m

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

Mode-S C030EF frequently asked

What is Mode-S code C030EF?
C030EF is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FSNU.
Where is Mode-S C030EF registered?
Mode-S code C030EF is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C030EF broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C030EF, octal 60030357, decimal 12,595,439.
What flights does C030EF operate?
Mode-S C030EF has broadcast 20 distinct callsigns, including ACA868, ACA869, ACA600, ACA617, ACA128.