Apparatus

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sensors Mode-S transponder

7C4EF4

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-PVQ · AGUSTA AW-139 · operated by STARFLIGHT VICTORIA PTY LTD

Hex
7C4EF4
Octal
37047364
Decimal
8,146,676
Country
AU
Tail
VH-PVQ
Type
A139
No current signal · last broadcast 1h ago
Flights observed
50
Distinct callsigns
1
Country
AU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7C4EF4.

Country allocation

The ICAO 24-bit address 7C4EF4 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 1 distinct

Callsign Airline Flights Last seen
POL31 - 50 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 POL31 MEB → MEB Jun 2, 17:30 UTCJun 2, 18:30 UTC1h 0m
2026-06-02 POL31 MEB → MEB Jun 2, 15:35 UTCJun 2, 16:05 UTC30m
2026-06-02 POL31 MEB → MEB Jun 2, 13:00 UTCJun 2, 14:45 UTC1h 45m
2026-06-02 POL31 MEB → MEB Jun 2, 06:10 UTCJun 2, 07:50 UTC1h 40m
2026-06-02 POL31 - Jun 2, 03:05 UTCJun 2, 05:05 UTC2h 0m
2026-06-02 POL31 MEB → MEB Jun 2, 00:20 UTCJun 2, 01:35 UTC1h 15m
2026-06-01 POL31 MEB → MEB Jun 1, 03:20 UTCJun 1, 04:25 UTC1h 5m
2026-06-01 POL31 - Jun 1, 00:55 UTCJun 1, 01:25 UTC30m
2026-06-01 POL31 - Jun 1, 00:00 UTCJun 1, 00:40 UTC40m
2026-05-30 POL31 MEB → MEB May 30, 07:20 UTCMay 30, 07:25 UTC5m
2026-04-24 POL31 MEB → MEB Apr 24, 19:45 UTCApr 24, 20:35 UTC50m
2026-04-24 POL31 MEB → MEB Apr 24, 17:10 UTCApr 24, 18:15 UTC1h 5m
2026-04-24 POL31 MEB → MEB Apr 24, 14:50 UTCApr 24, 16:05 UTC1h 15m
2026-04-23 POL31 MEB → MEB Apr 23, 18:30 UTCApr 23, 19:25 UTC55m
2026-04-23 POL31 MEB → MEB Apr 23, 00:55 UTCApr 23, 01:40 UTC45m
2026-04-22 POL31 - Apr 22, 20:10 UTCApr 22, 21:10 UTC1h 0m
2026-04-22 POL31 MEB → MEB Apr 22, 17:15 UTCApr 22, 17:55 UTC40m
2026-04-22 POL31 - Apr 22, 13:35 UTCApr 22, 15:10 UTC1h 35m
2026-04-22 POL31 - Apr 22, 10:20 UTCApr 22, 10:45 UTC25m
2026-04-22 POL31 MEB → MEB Apr 22, 07:50 UTCApr 22, 09:45 UTC1h 55m
2026-04-22 POL31 - Apr 22, 05:40 UTCApr 22, 06:05 UTC25m
2026-04-22 POL31 - Apr 22, 04:25 UTCApr 22, 04:45 UTC20m
2026-04-22 POL31 MEB → MEB Apr 22, 03:10 UTCApr 22, 03:30 UTC20m
2026-04-21 POL31 MEB → MEB Apr 21, 22:50 UTCApr 22, 00:10 UTC1h 20m
2026-04-21 POL31 - Apr 21, 13:01 UTCApr 21, 13:40 UTC40m
2026-04-21 POL31 - Apr 21, 05:10 UTCApr 21, 06:00 UTC50m
2026-04-21 POL31 - Apr 21, 04:45 UTCApr 21, 05:00 UTC15m
2026-04-21 POL31 MEB → MEB Apr 21, 02:15 UTCApr 21, 02:25 UTC10m
2026-04-20 POL31 MEB → MEB Apr 20, 23:25 UTCApr 21, 01:10 UTC1h 45m
2026-04-20 POL31 MEB → MEB Apr 20, 21:40 UTCApr 20, 22:05 UTC25m
2026-04-20 POL31 MEB → MEB Apr 20, 12:30 UTCApr 20, 14:05 UTC1h 35m
2026-04-20 POL31 - Apr 20, 10:40 UTCApr 20, 11:15 UTC35m
2026-04-20 POL31 - Apr 20, 07:25 UTCApr 20, 07:50 UTC25m
2026-04-20 POL31 MEB → MEB Apr 20, 04:05 UTCApr 20, 05:25 UTC1h 20m
2026-04-19 POL31 - Apr 19, 23:40 UTCApr 20, 01:40 UTC2h 0m
2026-04-18 POL31 MEB → MEB Apr 18, 20:00 UTCApr 18, 20:15 UTC15m
2026-04-18 POL31 - Apr 18, 17:55 UTCApr 18, 18:20 UTC25m
2026-04-18 POL31 - Apr 18, 15:00 UTCApr 18, 15:55 UTC55m
2026-04-18 POL31 - Apr 18, 11:30 UTCApr 18, 12:45 UTC1h 15m
2026-04-18 POL31 - Apr 18, 03:25 UTCApr 18, 04:20 UTC55m
2026-04-18 POL31 - Apr 18, 02:50 UTCApr 18, 03:20 UTC30m
2026-04-17 POL31 - Apr 17, 16:40 UTCApr 17, 17:15 UTC35m
2026-04-17 POL31 - Apr 17, 15:20 UTCApr 17, 16:15 UTC55m
2026-04-17 POL31 - Apr 17, 14:15 UTCApr 17, 15:15 UTC59m
2026-04-17 POL31 MEB → MEB Apr 17, 08:10 UTCApr 17, 08:55 UTC45m
2026-04-17 POL31 MEB → MEB Apr 17, 03:35 UTCApr 17, 04:55 UTC1h 21m
2026-04-14 POL31 - Apr 14, 16:50 UTCApr 14, 17:00 UTC10m
2026-04-14 POL31 - Apr 14, 16:05 UTCApr 14, 16:45 UTC40m
2026-04-14 POL31 MEB → MEB Apr 14, 15:10 UTCApr 14, 15:40 UTC30m
2026-04-14 POL31 MEB → MEB Apr 14, 12:55 UTCApr 14, 14:30 UTC1h 35m

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

Mode-S 7C4EF4 frequently asked

What is Mode-S code 7C4EF4?
7C4EF4 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-PVQ.
Where is Mode-S 7C4EF4 registered?
Mode-S code 7C4EF4 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4EF4 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4EF4, octal 37047364, decimal 8,146,676.
What flights does 7C4EF4 operate?
Mode-S 7C4EF4 has broadcast 1 distinct callsign, including POL31.