Apparatus

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sensors Mode-S transponder

7C03FA

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-A2K · EMBRAER ERJ-190-100

Hex
7C03FA
Octal
37001772
Decimal
8,127,482
Country
AU
Tail
VH-A2K
Type
E190
No current signal · last broadcast 1d ago
Flights observed
152
Distinct callsigns
20
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C03FA.

Country allocation

The ICAO 24-bit address 7C03FA 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
UTY3136 - 14 2026-07-03
UTY3102 Alliance Airlines 11 2026-07-22
UTY3100 - 8 2026-06-30
UTY3104 Alliance Airlines 7 2026-06-17
UTY3150 - 6 2026-06-29
UTY3148 - 6 2026-07-01
UTY3116 Alliance Airlines 6 2026-07-23
UTY8629 - 5 2026-06-04
UTY8620 - 5 2026-07-02
UTY3204 - 4 2026-07-03
UTY3119 Alliance Airlines 4 2026-07-23
UTY3103 Alliance Airlines 4 2026-07-22
UTY8624 - 3 2026-06-29
UTY8623 - 3 2026-06-18
UTY3160 Alliance Airlines 3 2026-07-01
UTY3152 Alliance Airlines 3 2026-05-13
UTY3137 - 3 2026-06-23
UTY3114 Alliance Airlines 3 2026-06-09
QLK1906 - 3 2026-07-08
UTY8627 - 2 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 QLK1795 - Jul 24, 23:10 UTCJul 25, 00:40 UTC1h 30m
2026-07-24 QLK1794 - Jul 24, 20:55 UTCJul 24, 22:15 UTC1h 20m
2026-07-24 QLK1817 - Jul 24, 06:00 UTCJul 24, 06:30 UTC30m
2026-07-24 QLK1816 - Jul 24, 01:40 UTCJul 24, 02:15 UTC35m
2026-07-23 UTY3110 ADL → OLP Jul 23, 21:55 UTCJul 24, 00:30 UTC2h 35m
2026-07-23 UTY3119 OLP → ADL Jul 23, 03:35 UTCJul 23, 04:10 UTC35m
2026-07-23 UTY3116 ADL → OLP Jul 23, 01:30 UTCJul 23, 02:00 UTC30m
2026-07-22 UTY3103 OLP → ADL Jul 22, 23:25 UTCJul 22, 23:55 UTC30m
2026-07-22 UTY3102 ADL → OLP Jul 22, 21:10 UTCJul 22, 21:45 UTC35m
2026-07-20 UTY4807 - Jul 20, 05:45 UTCJul 20, 05:55 UTC10m
2026-07-19 QLK1889 - Jul 19, 21:35 UTCJul 19, 21:45 UTC10m
2026-07-16 UTY4801 - Jul 16, 20:25 UTCJul 16, 20:35 UTC10m
2026-07-08 QLK1906 - Jul 8, 06:15 UTCJul 8, 06:40 UTC25m
2026-07-08 QLK1906 - Jul 8, 02:30 UTCJul 8, 03:00 UTC30m
2026-07-08 QLK1907 - Jul 8, 00:50 UTCJul 8, 01:25 UTC35m
2026-07-07 UTY926 - Jul 7, 08:30 UTCJul 7, 08:35 UTC5m
2026-07-06 UTY4807 - Jul 6, 05:45 UTCJul 6, 05:55 UTC10m
2026-07-05 QLK1906 - Jul 5, 01:40 UTCJul 5, 02:15 UTC35m
2026-07-03 UTY3204 ADL → ADL Jul 3, 21:35 UTCJul 4, 00:30 UTC2h 55m
2026-07-03 UTY3136 ADL → ADL Jul 3, 05:35 UTCJul 3, 08:25 UTC2h 50m
2026-07-02 UTY8620 ADL → ADL Jul 2, 22:50 UTCJul 3, 02:20 UTC3h 30m
2026-07-02 UTY3138 - Jul 2, 06:51 UTCJul 2, 09:35 UTC2h 44m
2026-07-02 UTY3119 - Jul 2, 01:25 UTCJul 2, 04:00 UTC2h 35m
2026-07-01 UTY3103 - Jul 1, 23:30 UTCJul 1, 23:55 UTC25m
2026-07-01 UTY3102 - Jul 1, 21:20 UTCJul 1, 21:50 UTC30m
2026-07-01 UTY3148 ADL → ADL Jul 1, 08:35 UTCJul 1, 11:25 UTC2h 50m
2026-07-01 UTY3160 ADL → OLP Jul 1, 04:55 UTCJul 1, 07:40 UTC2h 45m
2026-06-30 UTY3100 ADL → ADL Jun 30, 20:50 UTCJul 1, 00:45 UTC3h 55m
2026-06-30 UTY3136 ADL → ADL Jun 30, 07:20 UTCJun 30, 09:50 UTC2h 30m
2026-06-30 UTY3116 ADL → ADL Jun 30, 03:15 UTCJun 30, 06:25 UTC3h 10m
2026-06-29 UTY3102 ADL → ADL Jun 29, 23:34 UTCJun 30, 02:25 UTC2h 51m
2026-06-29 UTY3150 ADL → ADL Jun 29, 09:44 UTCJun 29, 12:20 UTC2h 35m
2026-06-29 UTY3136 ADL → ADL Jun 29, 06:05 UTCJun 29, 08:39 UTC2h 35m
2026-06-29 UTY8624 ADL → ADL Jun 29, 00:34 UTCJun 29, 03:49 UTC3h 15m
2026-06-28 UTY3100 ADL → ADL Jun 28, 20:45 UTCJun 28, 23:39 UTC2h 55m
2026-06-28 UTY3240 ADL → ADL Jun 28, 06:40 UTCJun 28, 09:30 UTC2h 50m
2026-06-26 UTY3204 ADL → OLP Jun 26, 21:35 UTCJun 27, 00:50 UTC3h 15m
2026-06-26 UTY3136 ADL → ADL Jun 26, 05:35 UTCJun 26, 08:24 UTC2h 50m
2026-06-25 UTY3110 ADL → OLP Jun 25, 21:50 UTCJun 26, 00:39 UTC2h 50m
2026-06-25 UTY3119 ADL → ADL Jun 25, 01:24 UTCJun 25, 03:59 UTC2h 35m
2026-06-24 UTY3148 ADL → ADL Jun 24, 08:39 UTCJun 24, 11:14 UTC2h 35m
2026-06-24 UTY3160 ADL → OLP Jun 24, 05:05 UTCJun 24, 07:40 UTC2h 35m
2026-06-23 UTY3100 ADL → OLP Jun 23, 20:49 UTCJun 24, 00:20 UTC3h 30m
2026-06-23 UTY3150 ADL → OLP Jun 23, 09:24 UTCJun 23, 11:59 UTC2h 35m
2026-06-23 UTY3137 ADL → ADL Jun 23, 05:45 UTCJun 23, 08:20 UTC2h 35m
2026-06-23 UTY3116 ADL → ADL Jun 23, 01:30 UTCJun 23, 04:05 UTC2h 35m
2026-06-22 UTY3102 ADL → OLP Jun 22, 21:14 UTCJun 22, 23:55 UTC2h 40m
2026-06-22 UTY3150 ADL → OLP Jun 22, 09:30 UTCJun 22, 12:15 UTC2h 45m
2026-06-22 UTY3136 ADL → ADL Jun 22, 05:34 UTCJun 22, 08:15 UTC2h 40m
2026-06-22 UTY8627 ADL → ADL Jun 22, 00:40 UTCJun 22, 03:54 UTC3h 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 VH-A2K page for operator, model, and routing details .

Mode-S 7C03FA frequently asked

What is Mode-S code 7C03FA?
7C03FA is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-A2K.
Where is Mode-S 7C03FA registered?
Mode-S code 7C03FA is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C03FA broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C03FA, octal 37001772, decimal 8,127,482.
What flights does 7C03FA operate?
Mode-S 7C03FA has broadcast 20 distinct callsigns, including UTY3136, UTY3102, UTY3100, UTY3104, UTY3150.