Apparatus

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sensors Mode-S transponder

7C44B4

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-NUU · FOKKER 70 · operated by ALLIANCE AIRLINES PTY LIMITED

Hex
7C44B4
Octal
37042264
Decimal
8,144,052
Country
AU
Tail
VH-NUU
Type
F70
No current signal · last broadcast 19h ago
Flights observed
51
Distinct callsigns
20
Country
AU
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 7C44B4.

Country allocation

The ICAO 24-bit address 7C44B4 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
VOZ1715 Virgin Australia 4 2026-05-26
UTY2834 Alliance Airlines 4 2026-05-29
VOZ1720 Virgin Australia 3 2026-05-26
UTY2836 Alliance Airlines 3 2026-05-21
VOZ1255 Virgin Australia 2 2026-05-25
VOZ1250 Virgin Australia 2 2026-04-22
VOZ1239 Virgin Australia 2 2026-05-26
UTY4361 Alliance Airlines 2 2026-04-21
UTY4360 - 2 2026-04-14
UTY4072 Alliance Airlines 2 2026-05-11
UTY3353 - 2 2026-04-13
VOZ1266 Virgin Australia 1 2026-04-23
VOZ1265 Virgin Australia 1 2026-05-22
VOZ1247 - 1 2026-04-13
VOZ1240 Virgin Australia 1 2026-05-25
VOZ1105 Virgin Australia 1 2026-04-22
VOZ1102 Virgin Australia 1 2026-04-22
UTY9580 Alliance Airlines 1 2026-04-19
UTY8608 Alliance Airlines 1 2026-05-20
UTY8515 Alliance Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 UTY2834 BNE → MOV May 29, 02:05 UTCMay 29, 05:20 UTC3h 15m
2026-05-28 UTY3362 BNE → RMA May 28, 21:00 UTCMay 28, 23:30 UTC2h 30m
2026-05-28 UTY8515 MOV → BNE May 28, 07:10 UTCMay 28, 08:20 UTC1h 10m
2026-05-28 UTY8514 BNE → MOV May 28, 04:15 UTCMay 28, 05:00 UTC45m
2026-05-27 UTY8462 BNE → MOV May 27, 22:20 UTCMay 28, 01:35 UTC3h 15m
2026-05-27 UTY8468 BNE → MOV May 27, 08:25 UTCMay 27, 12:15 UTC3h 50m
2026-05-27 UTY2833 MOV → BNE May 27, 02:09 UTCMay 27, 02:49 UTC40m
2026-05-26 UTY2832 BNE → MOV May 26, 21:04 UTCMay 26, 21:49 UTC45m
2026-05-26 VOZ1720 GLT → BNE May 26, 07:45 UTCMay 26, 08:19 UTC35m
2026-05-26 VOZ1715 BNE → GLT May 26, 05:59 UTCMay 26, 06:29 UTC30m
2026-05-26 VOZ1239 BNE → ROK May 26, 01:14 UTCMay 26, 04:00 UTC2h 45m
2026-05-25 VOZ1255 BNE → EMD May 25, 21:04 UTCMay 26, 00:00 UTC2h 55m
2026-05-25 VOZ1240 ROK → BNE May 25, 03:20 UTCMay 25, 03:55 UTC35m
2026-05-24 VOZ1255 BNE → EMD May 24, 21:00 UTCMay 24, 23:46 UTC2h 46m
2026-05-22 VOZ1265 BNE → EMD May 22, 05:00 UTCMay 22, 08:05 UTC3h 5m
2026-05-21 UTY2836 BNE → MOV May 21, 05:05 UTCMay 21, 09:15 UTC4h 10m
2026-05-20 UTY2834 BNE → MOV May 20, 20:35 UTCMay 21, 00:05 UTC3h 30m
2026-05-20 UTY8466 BNE → MOV May 20, 07:00 UTCMay 20, 10:20 UTC3h 20m
2026-05-20 UTY8608 BNE → RMA May 20, 00:15 UTCMay 20, 03:00 UTC2h 45m
2026-05-19 VOZ1720 GLT → BNE May 19, 08:00 UTCMay 19, 08:30 UTC30m
2026-05-19 VOZ1715 BNE → GLT May 19, 05:55 UTCMay 19, 06:30 UTC35m
2026-05-17 UTY2834 BNE → MOV May 17, 20:05 UTCMay 18, 02:00 UTC5h 55m
2026-05-14 UTY2836 BNE → MOV May 14, 05:15 UTCMay 14, 09:00 UTC3h 45m
2026-05-13 UTY2834 BNE → MOV May 13, 20:50 UTCMay 14, 00:05 UTC3h 15m
2026-05-11 UTY4072 MCY → EMD May 11, 21:55 UTCMay 11, 22:35 UTC39m
2026-05-11 UTY4072 MCY → EMD May 11, 20:45 UTCMay 11, 21:15 UTC30m
2026-05-10 UTY4352 BNE → MOV May 10, 22:30 UTCMay 11, 01:45 UTC3h 15m
2026-04-29 UTY3378 BNE → EMD Apr 29, 11:15 UTCApr 29, 13:55 UTC2h 40m
2026-04-29 UTY2836 BNE → MOV Apr 29, 05:55 UTCApr 29, 09:10 UTC3h 16m
2026-04-24 VOZ1720 GLT → BNE Apr 24, 07:45 UTCApr 24, 08:35 UTC50m
2026-04-24 VOZ1715 BNE → GLT Apr 24, 05:55 UTCApr 24, 06:25 UTC30m
2026-04-23 VOZ1266 EMD → BNE Apr 23, 05:30 UTCApr 23, 08:25 UTC2h 55m
2026-04-23 VOZ1239 BNE → ROK Apr 23, 01:05 UTCApr 23, 04:00 UTC2h 55m
2026-04-22 VOZ1250 ROK → BNE Apr 22, 06:35 UTCApr 22, 09:15 UTC2h 40m
2026-04-22 VOZ1105 NTL → BNE Apr 22, 02:05 UTCApr 22, 03:15 UTC1h 10m
2026-04-22 VOZ1102 BNE → NTL Apr 22, 00:05 UTCApr 22, 01:10 UTC1h 5m
2026-04-21 UTY4361 MOV → BNE Apr 21, 06:40 UTCApr 21, 10:00 UTC3h 20m
2026-04-19 UTY9580 BNE → RMA Apr 19, 23:15 UTCApr 20, 01:40 UTC2h 25m
2026-04-19 VOZ1715 BNE → GLT Apr 19, 05:55 UTCApr 19, 08:25 UTC2h 30m
2026-04-16 UTY8461 - Apr 16, 00:35 UTCApr 16, 01:05 UTC30m
2026-04-15 UTY8460 - Apr 15, 21:55 UTCApr 15, 22:35 UTC40m
2026-04-15 UTY8513 - Apr 15, 11:15 UTCApr 15, 11:45 UTC30m
2026-04-15 UTY8512 - Apr 15, 03:30 UTCApr 15, 04:10 UTC40m
2026-04-14 UTY4361 - Apr 14, 09:25 UTCApr 14, 10:05 UTC40m
2026-04-14 UTY4360 - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 UTY4360 - Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-13 UTY8502 BNE → BNE Apr 13, 19:55 UTCApr 13, 23:05 UTC3h 10m
2026-04-13 VOZ1250 ROK → BNE Apr 13, 08:40 UTCApr 13, 09:20 UTC40m
2026-04-13 VOZ1247 - Apr 13, 06:35 UTCApr 13, 07:10 UTC35m
2026-04-13 UTY3353 - Apr 13, 00:20 UTCApr 13, 00:40 UTC20m

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

Mode-S 7C44B4 frequently asked

What is Mode-S code 7C44B4?
7C44B4 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-NUU.
Where is Mode-S 7C44B4 registered?
Mode-S code 7C44B4 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C44B4 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C44B4, octal 37042264, decimal 8,144,052.
What flights does 7C44B4 operate?
Mode-S 7C44B4 has broadcast 20 distinct callsigns, including VOZ1715, UTY2834, VOZ1720, UTY2836, VOZ1255.