Apparatus

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sensors Mode-S transponder

7C7798

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-XWQ · FOKKER 100 · operated by ALLIANCE AIRLINES PTY LIMITED

Hex
7C7798
Octal
37073630
Decimal
8,157,080
Country
AU
Tail
VH-XWQ
Type
F100
No current signal · last broadcast 1d ago
Flights observed
67
Distinct callsigns
20
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C7798.

Country allocation

The ICAO 24-bit address 7C7798 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
UTY6520 - 4 2026-07-05
UTY738 Alliance Airlines 3 2026-05-12
UTY737 Alliance Airlines 3 2026-05-12
UTY731 - 3 2026-06-24
UTY6506 - 3 2026-06-26
UTY6302 - 3 2026-06-24
UTY878 - 2 2026-06-23
UTY877 - 2 2026-06-28
UTY870 - 2 2026-06-30
UTY6527 - 2 2026-04-15
UTY6509 - 2 2026-06-04
UTY6504 - 2 2026-06-26
UTY6503 - 2 2026-07-10
UTY6303 - 2 2026-06-24
UTY6071 - 2 2026-07-12
UTY5206 - 2 2026-05-14
UTY4121 - 2 2026-07-08
UTY4100 - 2 2026-07-08
VOZ9396 - 1 2026-06-09
VOZ9395 - 1 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 UTY6071 - Jul 12, 22:50 UTCJul 13, 03:10 UTC4h 20m
2026-07-10 UTY6503 - Jul 10, 06:55 UTCJul 10, 07:35 UTC40m
2026-07-09 UTY2287 - Jul 9, 22:25 UTCJul 10, 02:45 UTC4h 20m
2026-07-09 UTY5207 - Jul 9, 10:55 UTCJul 9, 11:35 UTC40m
2026-07-09 UTY5205 - Jul 9, 00:45 UTCJul 9, 01:35 UTC50m
2026-07-08 UTY5204 - Jul 8, 22:30 UTCJul 8, 22:40 UTC10m
2026-07-08 UTY4121 - Jul 8, 08:30 UTCJul 8, 09:10 UTC40m
2026-07-08 UTY4101 - Jul 8, 03:45 UTCJul 8, 04:35 UTC50m
2026-07-08 UTY4100 - Jul 8, 00:25 UTCJul 8, 00:40 UTC15m
2026-07-06 UTY6521 - Jul 6, 00:40 UTCJul 6, 00:55 UTC15m
2026-07-05 UTY6520 - Jul 5, 21:55 UTCJul 5, 22:25 UTC30m
2026-07-01 UTY4121 - Jul 1, 08:35 UTCJul 1, 09:10 UTC35m
2026-07-01 UTY4120 - Jul 1, 06:30 UTCJul 1, 07:00 UTC30m
2026-07-01 UTY871 - Jul 1, 04:00 UTCJul 1, 04:40 UTC40m
2026-06-30 UTY870 - Jun 30, 23:45 UTCJul 1, 00:15 UTC30m
2026-06-30 UTY956 - Jun 30, 06:30 UTCJun 30, 07:00 UTC30m
2026-06-28 UTY877 - Jun 28, 22:49 UTCJun 29, 10:20 UTC11h 30m
2026-06-26 UTY740 - Jun 26, 23:25 UTCJun 27, 00:00 UTC35m
2026-06-26 UTY6506 - Jun 26, 08:30 UTCJun 26, 08:54 UTC25m
2026-06-26 UTY6504 - Jun 26, 00:39 UTCJun 26, 01:05 UTC25m
2026-06-24 UTY731 - Jun 24, 21:34 UTCJun 24, 22:04 UTC30m
2026-06-24 UTY6303 KGI → PER Jun 24, 11:34 UTCJun 24, 12:40 UTC1h 5m
2026-06-24 UTY6302 PER → KGI Jun 24, 09:09 UTCJun 24, 09:59 UTC50m
2026-06-23 UTY731 PER → PER Jun 23, 21:54 UTCJun 24, 07:50 UTC9h 55m
2026-06-23 UTY878 PER → PER Jun 23, 06:39 UTCJun 23, 11:35 UTC4h 55m
2026-06-22 UTY6303 KGI → PER Jun 22, 00:10 UTCJun 22, 01:19 UTC1h 10m
2026-06-21 UTY6302 PER → KGI Jun 21, 22:24 UTCJun 21, 23:24 UTC1h 0m
2026-06-15 UTY6071 CJF → PER Jun 15, 02:15 UTCJun 15, 02:50 UTC35m
2026-06-09 VOZ9396 - Jun 9, 00:25 UTCJun 9, 01:35 UTC1h 10m
2026-06-08 VOZ9395 - Jun 8, 21:45 UTCJun 8, 22:00 UTC15m
2026-06-08 UTY6526 - Jun 8, 06:45 UTCJun 8, 07:25 UTC40m
2026-06-07 UTY6520 - Jun 7, 22:00 UTCJun 7, 22:45 UTC45m
2026-06-05 UTY6506 PER → PER Jun 5, 07:40 UTCJun 5, 10:40 UTC3h 0m
2026-06-04 UTY6509 PER → PER Jun 4, 21:50 UTCJun 5, 00:35 UTC2h 45m
2026-06-03 UTY6503 PER → PER Jun 3, 22:40 UTCJun 4, 09:15 UTC10h 35m
2026-06-02 UTY804 PER → LEI Jun 2, 08:30 UTCJun 2, 09:00 UTC30m
2026-05-28 UTY6504 - May 28, 23:25 UTCMay 28, 23:50 UTC25m
2026-05-28 UTY878 - May 28, 06:35 UTCMay 28, 07:10 UTC35m
2026-05-28 UTY4100 - May 28, 00:15 UTCMay 28, 00:45 UTC30m
2026-05-26 UTY733 - May 26, 22:59 UTCMay 26, 23:35 UTC35m
2026-05-24 UTY6302 PER → KGI May 24, 23:00 UTCMay 24, 23:30 UTC30m
2026-05-22 UTY5209 - May 22, 09:35 UTCMay 22, 10:15 UTC40m
2026-05-22 UTY5208 - May 22, 07:15 UTCMay 22, 07:20 UTC5m
2026-05-21 UTY5202 PER → PER May 21, 22:40 UTCMay 22, 01:20 UTC2h 40m
2026-05-17 UTY872 - May 17, 21:55 UTCMay 17, 22:25 UTC30m
2026-05-15 UTY6506 PER → PER May 15, 07:35 UTCMay 15, 10:15 UTC2h 40m
2026-05-14 UTY6509 PER → PER May 14, 21:55 UTCMay 15, 00:35 UTC2h 40m
2026-05-14 UTY5206 PER → PER May 14, 07:20 UTCMay 14, 11:25 UTC4h 5m
2026-05-13 UTY731 PER → PER May 13, 21:40 UTCMay 14, 02:55 UTC5h 15m
2026-05-13 UTY750 PER → KGI May 13, 00:35 UTCMay 13, 01:25 UTC50m

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

Mode-S 7C7798 frequently asked

What is Mode-S code 7C7798?
7C7798 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-XWQ.
Where is Mode-S 7C7798 registered?
Mode-S code 7C7798 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7798 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 7C7798, octal 37073630, decimal 8,157,080.
What flights does 7C7798 operate?
Mode-S 7C7798 has broadcast 20 distinct callsigns, including UTY6520, UTY738, UTY737, UTY731, UTY6506.