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 Jul 26, 23:00 UTC
Flights observed
133
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 23:00 UTC

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
UTY2834 Alliance Airlines 8 2026-07-26
VOZ1715 Virgin Australia 6 2026-07-26
UTY8608 Alliance Airlines 5 2026-07-22
UTY8460 Alliance Airlines 5 2026-07-01
UTY4360 Alliance Airlines 5 2026-07-21
UTY2836 - 5 2026-07-16
VOZ1720 - 4 2026-06-17
VOZ1239 Virgin Australia 4 2026-07-23
UTY8514 - 4 2026-07-09
UTY8466 - 4 2026-07-08
UTY8462 - 4 2026-07-15
UTY4073 Alliance Airlines 4 2026-07-21
UTY4072 - 4 2026-07-20
VOZ1255 - 3 2026-06-23
VOZ1250 - 3 2026-07-07
UTY8510 - 3 2026-07-07
UTY8461 - 3 2026-07-02
UTY4361 Alliance Airlines 3 2026-06-09
UTY4352 - 3 2026-07-19
VOZ1266 Virgin Australia 2 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UTY2834 BNE → MOV Jul 26, 19:55 UTCJul 26, 23:00 UTC3h 5m
2026-07-26 VOZ1715 BNE → GLT Jul 26, 06:15 UTCJul 26, 08:35 UTC2h 21m
2026-07-23 VOZ1266 EMD → BNE Jul 23, 06:10 UTCJul 23, 09:05 UTC2h 55m
2026-07-23 VOZ1239 BNE → ROK Jul 23, 02:25 UTCJul 23, 05:15 UTC2h 50m
2026-07-22 VOZ1231 BNE → BNE Jul 22, 22:15 UTCJul 23, 01:15 UTC3h 0m
2026-07-22 UTY8469 - Jul 22, 11:25 UTCJul 22, 11:35 UTC10m
2026-07-22 UTY8608 BNE → RMA Jul 22, 00:25 UTCJul 22, 02:55 UTC2h 30m
2026-07-21 UTY2832 BNE → BNE Jul 21, 20:00 UTCJul 21, 23:20 UTC3h 20m
2026-07-21 UTY4360 BNE → MOV Jul 21, 07:00 UTCJul 21, 10:05 UTC3h 5m
2026-07-21 UTY4073 MCY → BNE Jul 21, 01:15 UTCJul 21, 01:30 UTC15m
2026-07-20 UTY4073 MCY → BNE Jul 20, 22:00 UTCJul 21, 00:40 UTC2h 39m
2026-07-20 UTY4072 BNE → MCY Jul 20, 20:50 UTCJul 20, 21:20 UTC30m
2026-07-20 UTY500 BNE → ROK Jul 20, 02:10 UTCJul 20, 11:00 UTC8h 50m
2026-07-19 UTY4352 BNE → BNE Jul 19, 21:25 UTCJul 20, 00:25 UTC3h 0m
2026-07-17 UTY2834 BNE → MOV Jul 17, 02:05 UTCJul 17, 05:15 UTC3h 10m
2026-07-16 UTY2836 BNE → BNE Jul 16, 05:05 UTCJul 16, 09:05 UTC4h 0m
2026-07-15 UTY8462 BNE → BNE Jul 15, 22:50 UTCJul 16, 02:15 UTC3h 25m
2026-07-15 UTY4358 BNE → BNE Jul 15, 07:45 UTCJul 15, 11:30 UTC3h 45m
2026-07-15 UTY8608 BNE → BNE Jul 15, 00:45 UTCJul 15, 03:15 UTC2h 30m
2026-07-14 UTY2838 BNE → BNE Jul 14, 09:00 UTCJul 14, 12:10 UTC3h 10m
2026-07-14 UTY3385 - Jul 14, 02:55 UTCJul 14, 07:55 UTC5h 0m
2026-07-13 UTY8502 BNE → MOV Jul 13, 20:00 UTCJul 13, 23:20 UTC3h 20m
2026-07-13 UTY4079 MCY → BNE Jul 13, 12:35 UTCJul 13, 12:55 UTC20m
2026-07-13 UTY4078 MCY → MCY Jul 13, 07:30 UTCJul 13, 12:00 UTC4h 30m
2026-07-13 UTY4078 BNE → MCY Jul 13, 06:25 UTCJul 13, 06:55 UTC30m
2026-07-12 UTY3351 BNE → BNE Jul 12, 23:35 UTCJul 13, 01:45 UTC2h 10m
2026-07-10 UTY2834 BNE → BNE Jul 10, 01:55 UTCJul 10, 05:10 UTC3h 15m
2026-07-09 UTY8514 BNE → BNE Jul 9, 04:05 UTCJul 9, 07:35 UTC3h 30m
2026-07-08 UTY8462 BNE → BNE Jul 8, 22:20 UTCJul 9, 01:25 UTC3h 5m
2026-07-08 UTY3378 BNE → EMD Jul 8, 11:40 UTCJul 8, 14:25 UTC2h 45m
2026-07-08 UTY8466 BNE → BNE Jul 8, 06:55 UTCJul 8, 10:10 UTC3h 15m
2026-07-08 UTY8606 BNE → BNE Jul 8, 00:50 UTCJul 8, 05:40 UTC4h 50m
2026-07-07 VOZ1250 BNE → BNE Jul 7, 06:40 UTCJul 7, 09:30 UTC2h 50m
2026-07-07 UTY8510 BNE → BNE Jul 7, 00:40 UTCJul 7, 03:50 UTC3h 10m
2026-07-02 UTY8461 - Jul 2, 01:45 UTCJul 2, 02:20 UTC35m
2026-07-01 UTY8460 BNE → MOV Jul 1, 23:10 UTCJul 1, 23:55 UTC45m
2026-07-01 UTY8460 BNE → MOV Jul 1, 21:55 UTCJul 1, 22:30 UTC35m
2026-07-01 UTY8512 BNE → EMD Jul 1, 03:40 UTCJul 1, 11:50 UTC8h 10m
2026-06-30 UTY2838 BNE → BNE Jun 30, 05:45 UTCJun 30, 09:00 UTC3h 15m
2026-06-30 UTY8510 BNE → BNE Jun 30, 00:35 UTCJun 30, 03:55 UTC3h 21m
2026-06-26 UTY4357 - Jun 26, 05:50 UTCJun 26, 06:19 UTC30m
2026-06-26 UTY4356 - Jun 26, 03:20 UTCJun 26, 04:00 UTC40m
2026-06-25 UTY4358 BNE → BNE Jun 25, 03:15 UTCJun 25, 07:19 UTC4h 5m
2026-06-24 UTY3370 BNE → EMD Jun 24, 21:19 UTCJun 25, 00:59 UTC3h 40m
2026-06-24 UTY8469 MOV → BNE Jun 24, 10:59 UTCJun 24, 11:29 UTC30m
2026-06-24 UTY8468 - Jun 24, 07:59 UTCJun 24, 08:39 UTC40m
2026-06-23 VOZ1255 BNE → BNE Jun 23, 20:54 UTCJun 23, 23:50 UTC2h 55m
2026-06-23 VOZ1247 BNE → BNE Jun 23, 06:44 UTCJun 23, 09:34 UTC2h 50m
2026-06-23 UTY4073 MCY → BNE Jun 23, 01:30 UTCJun 23, 01:50 UTC20m
2026-06-22 UTY4073 MCY → BNE Jun 22, 21:54 UTCJun 23, 00:50 UTC2h 55m

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 Jul 26, 23:00 UTC.
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 UTY2834, VOZ1715, UTY8608, UTY8460, UTY4360.