Apparatus

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sensors Mode-S transponder

7C03F2

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-A2C · EMBRAER ERJ-190-100

Hex
7C03F2
Octal
37001762
Decimal
8,127,474
Country
AU
Tail
VH-A2C
Type
E190
No current signal · last broadcast 22h ago
Flights observed
74
Distinct callsigns
20
Country
AU
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 7C03F2.

Country allocation

The ICAO 24-bit address 7C03F2 falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia 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
UTY4823 - 4 2026-07-16
UTY713 - 3 2026-07-08
QLK1990 - 3 2026-06-05
QLK1972 - 3 2026-06-06
QLK1918 - 3 2026-06-07
QLK1917 - 3 2026-06-07
QLK1822 - 3 2026-07-12
UTY4821 Alliance Airlines 2 2026-04-23
QLK7883 - 2 2026-06-05
QLK6282 - 2 2026-06-20
QLK1971 - 2 2026-06-05
QLK1928 - 2 2026-04-16
QLK1888 - 2 2026-07-06
QLK1823 - 2 2026-07-13
UTY7240 Alliance Airlines 1 2026-06-07
UTY712 - 1 2026-07-14
UTY4824 - 1 2026-07-14
UTY4822 - 1 2026-07-15
QLK7885 - 1 2026-06-05
QLK6283 - 1 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 UTY4823 BNE → BNE Jul 16, 20:49 UTCJul 17, 03:59 UTC7h 10m
2026-07-16 QLK1923 - Jul 16, 07:30 UTCJul 16, 08:05 UTC35m
2026-07-16 QLK1922 - Jul 16, 05:35 UTCJul 16, 06:10 UTC35m
2026-07-15 UTY4822 BNE → BNE Jul 15, 20:05 UTCJul 16, 03:35 UTC7h 30m
2026-07-14 UTY712 BNE → BNE Jul 14, 22:10 UTCJul 15, 14:40 UTC16h 29m
2026-07-14 UTY4824 - Jul 14, 03:55 UTCJul 14, 04:25 UTC30m
2026-07-13 UTY4823 - Jul 13, 20:20 UTCJul 13, 20:50 UTC30m
2026-07-13 QLK1823 - Jul 13, 00:55 UTCJul 13, 02:01 UTC1h 5m
2026-07-12 QLK1822 - Jul 12, 23:35 UTCJul 12, 23:50 UTC15m
2026-07-12 QLK1822 - Jul 12, 22:30 UTCJul 12, 23:05 UTC35m
2026-07-12 QLK1874 BNE → BNE Jul 12, 01:25 UTCJul 12, 07:50 UTC6h 25m
2026-07-09 UTY4823 BNE → AYQ Jul 9, 20:10 UTCJul 10, 03:45 UTC7h 35m
2026-07-08 UTY4823 BNE → AYQ Jul 8, 20:20 UTCJul 9, 04:05 UTC7h 45m
2026-07-08 UTY713 - Jul 8, 05:40 UTCJul 8, 06:15 UTC35m
2026-07-06 QLK1888 - Jul 6, 07:25 UTCJul 6, 08:55 UTC1h 30m
2026-07-06 QLK1885 - Jul 6, 04:40 UTCJul 6, 05:55 UTC1h 15m
2026-06-21 QLK6280 - Jun 21, 04:30 UTCJun 21, 06:14 UTC1h 45m
2026-06-20 QLK1888 BNE → BNE Jun 20, 07:09 UTCJun 20, 21:44 UTC14h 35m
2026-06-20 QLK6282 BNE → BNE Jun 20, 01:05 UTCJun 20, 05:54 UTC4h 50m
2026-06-19 QLK1848 BNE → BNE Jun 19, 07:19 UTCJun 19, 21:34 UTC14h 15m
2026-06-19 QLK1984 - Jun 19, 04:34 UTCJun 19, 05:45 UTC1h 10m
2026-06-19 QLK1983 - Jun 19, 02:35 UTCJun 19, 03:34 UTC1h 0m
2026-06-19 QLK1982 - Jun 19, 00:14 UTCJun 19, 01:15 UTC1h 0m
2026-06-18 QLK1981 - Jun 18, 22:10 UTCJun 18, 23:10 UTC1h 0m
2026-06-18 QLK6283 - Jun 18, 19:50 UTCJun 18, 21:05 UTC1h 15m
2026-06-08 QLK6282 - Jun 8, 06:10 UTCJun 8, 07:55 UTC1h 45m
2026-06-07 UTY7240 TSV → WEI Jun 7, 22:25 UTCJun 8, 04:50 UTC6h 25m
2026-06-07 QLK1858 BNE → BNE Jun 7, 04:10 UTCJun 7, 09:25 UTC5h 15m
2026-06-07 QLK1917 - Jun 7, 02:14 UTCJun 7, 02:50 UTC35m
2026-06-07 QLK1918 - Jun 7, 00:05 UTCJun 7, 00:49 UTC45m
2026-06-06 QLK1972 ABX → BNE Jun 6, 03:10 UTCJun 6, 04:45 UTC1h 35m
2026-06-05 QLK1971 BNE → ABX Jun 5, 23:55 UTCJun 6, 01:40 UTC1h 45m
2026-06-05 QLK7885 - Jun 5, 12:20 UTCJun 5, 12:50 UTC30m
2026-06-05 QLK7883 - Jun 5, 10:55 UTCJun 5, 11:05 UTC10m
2026-06-05 QLK7883 - Jun 5, 09:45 UTCJun 5, 09:55 UTC10m
2026-06-05 QLK1990 - Jun 5, 04:40 UTCJun 5, 06:20 UTC1h 40m
2026-06-05 QLK1802 ADL → BNE Jun 5, 00:15 UTCJun 5, 02:25 UTC2h 10m
2026-06-04 QLK1801 BNE → ADL Jun 4, 20:35 UTCJun 4, 23:00 UTC2h 25m
2026-06-04 QLK1829 - Jun 4, 07:20 UTCJun 4, 08:35 UTC1h 15m
2026-06-04 QLK1828 BNE → MKY Jun 4, 05:15 UTCJun 4, 06:35 UTC1h 20m
2026-06-04 QLK1844 BNE → BNE Jun 4, 00:50 UTCJun 4, 03:40 UTC2h 50m
2026-06-03 UTY713 CNJ → BNE Jun 3, 05:40 UTCJun 3, 06:10 UTC30m
2026-05-22 QLK1944 - May 22, 08:05 UTCMay 22, 09:10 UTC1h 5m
2026-05-22 QLK1943 - May 22, 05:20 UTCMay 22, 06:15 UTC55m
2026-05-11 QLK1990 - May 11, 04:45 UTCMay 11, 05:20 UTC35m
2026-05-11 QLK1883 - May 11, 02:50 UTCMay 11, 03:20 UTC30m
2026-04-26 QLK6281 - Apr 26, 06:05 UTCApr 26, 06:45 UTC40m
2026-04-23 UTY4821 BNE → ASP Apr 23, 19:40 UTCApr 24, 03:25 UTC7h 45m
2026-04-23 QLK1990 BNE → BNE Apr 23, 05:00 UTCApr 23, 09:50 UTC4h 50m
2026-04-22 UTY4821 BNE → ASP Apr 22, 19:50 UTCApr 23, 03:25 UTC7h 35m

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 VH-A2C page for operator, model, and routing details .

Mode-S 7C03F2 frequently asked

What is Mode-S code 7C03F2?
7C03F2 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-A2C.
Where is Mode-S 7C03F2 registered?
Mode-S code 7C03F2 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C03F2 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C03F2, octal 37001762, decimal 8,127,474.
What flights does 7C03F2 operate?
Mode-S 7C03F2 has broadcast 20 distinct callsigns, including UTY4823, UTY713, QLK1990, QLK1972, QLK1918.