Apparatus

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sensors Mode-S transponder

7CAF1B

ICAO 24-bit transponder address · allocated to Australia

Hex
7CAF1B
Octal
37127433
Decimal
8,171,291
Country
AU
Transponder active on ground
Flights observed
299
Distinct callsigns
20
Country
AU
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 7CAF1B.

Country allocation

The ICAO 24-bit address 7CAF1B 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
VOZ447 - 8 2026-06-13
VOZ1385 Virgin Australia 5 2026-06-12
VOZ9947 Virgin Australia 4 2026-05-08
VOZ551 - 4 2026-06-20
VOZ469 - 4 2026-06-26
VOZ462 - 4 2026-06-25
VOZ454 Virgin Australia 4 2026-06-13
VOZ358 - 4 2026-06-25
VOZ1404 - 4 2026-06-17
VOZ1398 - 4 2026-06-24
VOZ1388 - 4 2026-06-24
BOE025 - 4 2026-04-30
VOZ785 - 3 2026-07-05
VOZ717 - 3 2026-07-11
VOZ558 - 3 2026-06-21
VOZ476 Virgin Australia 3 2026-06-11
VOZ303 - 3 2026-06-25
VOZ212 - 3 2026-07-15
VOZ211 - 3 2026-07-14
VOZ1405 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 VOZ334 BNE → MEL Jul 25, 05:50 UTCJul 25, 08:05 UTC2h 15m
2026-07-24 VOZ463 PER → BNE Jul 24, 22:20 UTCJul 25, 02:15 UTC3h 55m
2026-07-24 VOZ569 SYD → PER Jul 24, 10:45 UTCJul 24, 15:15 UTC4h 30m
2026-07-24 VOZ875 MEL → SYD Jul 24, 08:25 UTCJul 24, 09:35 UTC1h 10m
2026-07-24 VOZ1040 MCY → MEL Jul 24, 05:00 UTCJul 24, 07:15 UTC2h 15m
2026-07-24 VOZ1037 MEL → MCY Jul 24, 02:05 UTCJul 24, 03:55 UTC1h 50m
2026-07-23 VOZ820 SYD → MEL Jul 23, 22:55 UTCJul 24, 00:10 UTC1h 15m
2026-07-23 VOZ908 BNE → SYD Jul 23, 20:40 UTCJul 23, 21:55 UTC1h 15m
2026-07-23 VOZ477 PER → BNE Jul 23, 14:50 UTCJul 23, 18:45 UTC3h 55m
2026-07-23 VOZ1866 KGI → PER Jul 23, 11:50 UTCJul 23, 13:00 UTC1h 10m
2026-07-23 VOZ1867 PER → KGI Jul 23, 10:10 UTCJul 23, 11:05 UTC55m
2026-07-23 VOZ1486 BME → PER Jul 23, 08:35 UTCJul 23, 09:15 UTC40m
2026-07-23 VOZ1485 PER → BME Jul 23, 03:35 UTCJul 23, 04:05 UTC30m
2026-07-22 VOZ677 MEL → PER Jul 22, 21:35 UTCJul 23, 01:25 UTC3h 50m
2026-07-22 VOZ1335 HBA → MEL Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-22 VOZ741 MEL → OOL Jul 22, 02:40 UTCJul 22, 04:20 UTC1h 40m
2026-07-21 VOZ824 SYD → MEL Jul 21, 23:15 UTCJul 22, 00:30 UTC1h 15m
2026-07-21 VOZ869 MEL → SYD Jul 21, 07:25 UTCJul 21, 08:30 UTC1h 5m
2026-07-21 VOZ332 BNE → MEL Jul 21, 04:20 UTCJul 21, 06:20 UTC2h 0m
2026-07-21 VOZ608 MKY → BNE Jul 21, 01:40 UTCJul 21, 02:50 UTC1h 10m
2026-07-20 VOZ605 BNE → MKY Jul 20, 23:20 UTCJul 21, 00:35 UTC1h 14m
2026-07-20 VOZ957 SYD → BNE Jul 20, 06:25 UTCJul 20, 07:35 UTC1h 10m
2026-07-20 VOZ849 MEL → SYD Jul 20, 04:20 UTCJul 20, 05:20 UTC1h 0m
2026-07-20 VOZ832 - Jul 20, 00:50 UTCJul 20, 02:00 UTC1h 10m
2026-07-19 VOZ819 MEL → SYD Jul 19, 22:15 UTCJul 19, 23:15 UTC1h 0m
2026-07-19 VOZ244 ADL → MEL Jul 19, 10:50 UTCJul 19, 11:50 UTC1h 0m
2026-07-19 VOZ241 MEL → ADL Jul 19, 08:25 UTCJul 19, 09:25 UTC1h 0m
2026-07-18 VOZ1293 MEL → MEL Jul 18, 23:55 UTCJul 19, 07:05 UTC7h 10m
2026-07-18 VOZ726 - Jul 18, 20:15 UTCJul 18, 22:20 UTC2h 5m
2026-07-18 VOZ541 SYD → OOL Jul 18, 08:40 UTCJul 18, 09:40 UTC1h 0m
2026-07-18 VOZ859 MEL → SYD Jul 18, 06:15 UTCJul 18, 07:20 UTC1h 5m
2026-07-18 VOZ1036 MCY → MEL Jul 18, 02:55 UTCJul 18, 04:55 UTC2h 0m
2026-07-18 VOZ1031 MEL → MCY Jul 18, 00:00 UTCJul 18, 01:50 UTC1h 50m
2026-07-17 VOZ244 ADL → MEL Jul 17, 10:50 UTCJul 17, 11:50 UTC1h 0m
2026-07-17 VOZ241 MEL → ADL Jul 17, 08:49 UTCJul 17, 09:50 UTC1h 0m
2026-07-17 VOZ740 - Jul 17, 04:35 UTCJul 17, 06:29 UTC1h 55m
2026-07-17 VOZ739 - Jul 17, 01:35 UTCJul 17, 03:20 UTC1h 45m
2026-07-16 VOZ314 BNE → MEL Jul 16, 22:15 UTCJul 17, 00:10 UTC1h 55m
2026-07-16 VOZ349 MEL → BNE Jul 16, 09:55 UTCJul 16, 12:00 UTC2h 5m
2026-07-16 VOZ744 - Jul 16, 06:40 UTCJul 16, 08:30 UTC1h 50m
2026-07-16 VOZ743 - Jul 16, 03:50 UTCJul 16, 05:40 UTC1h 50m
2026-07-15 VOZ680 PER → MEL Jul 15, 22:55 UTCJul 16, 02:15 UTC3h 20m
2026-07-15 VOZ697 MEL → PER Jul 15, 08:00 UTCJul 15, 11:50 UTC3h 50m
2026-07-15 VOZ212 - Jul 15, 01:10 UTCJul 15, 02:15 UTC1h 5m
2026-07-14 VOZ211 MEL → ADL Jul 14, 21:50 UTCJul 15, 00:10 UTC2h 19m
2026-07-14 VOZ1456 - Jul 14, 18:40 UTCJul 14, 19:20 UTC40m
2026-07-14 VOZ1465 - Jul 14, 10:10 UTCJul 14, 10:40 UTC30m
2026-07-14 VOZ866 SYD → MEL Jul 14, 07:00 UTCJul 14, 08:20 UTC1h 20m
2026-07-13 VOZ1413 SYD → SYD Jul 13, 22:45 UTCJul 14, 05:00 UTC6h 15m
2026-07-13 VOZ1350 - Jul 13, 06:10 UTCJul 13, 07:10 UTC1h 0m

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.

Mode-S 7CAF1B frequently asked

What is Mode-S code 7CAF1B?
7CAF1B is an ICAO 24-bit transponder address. Allocated to Australia.
Where is Mode-S 7CAF1B registered?
Mode-S code 7CAF1B is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7CAF1B broadcasting right now?
Mode-S 7CAF1B is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7CAF1B, octal 37127433, decimal 8,171,291.
What flights does 7CAF1B operate?
Mode-S 7CAF1B has broadcast 20 distinct callsigns, including VOZ447, VOZ1385, VOZ9947, VOZ551, VOZ469.