Apparatus

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sensors Mode-S transponder

7C4899

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OMJ · CESSNA 208 Caravan · operated by MACQUARIE AIR PTY LTD

Hex
7C4899
Octal
37044231
Decimal
8,145,049
Country
AU
Tail
VH-OMJ
Type
C208
No current signal · last broadcast 1d ago
Flights observed
178
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C4899.

Country allocation

The ICAO 24-bit address 7C4899 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
OMJ - 178 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 OMJ MEL → BWU May 28, 16:30 UTCMay 28, 18:40 UTC2h 10m
2026-05-28 OMJ BWU → MEL May 28, 13:05 UTCMay 28, 15:30 UTC2h 25m
2026-05-28 OMJ - May 28, 07:25 UTCMay 28, 09:20 UTC1h 55m
2026-05-27 OMJ - May 27, 23:15 UTCMay 27, 23:25 UTC10m
2026-05-27 OMJ - May 27, 21:25 UTCMay 27, 22:35 UTC1h 10m
2026-05-27 OMJ MEL → BWU May 27, 16:25 UTCMay 27, 18:55 UTC2h 30m
2026-05-27 OMJ - May 27, 13:00 UTCMay 27, 15:15 UTC2h 15m
2026-05-27 OMJ - May 27, 00:44 UTCMay 27, 01:34 UTC50m
2026-05-26 OMJ - May 26, 23:14 UTCMay 27, 00:34 UTC1h 20m
2026-05-26 OMJ - May 26, 14:09 UTCMay 26, 14:45 UTC35m
2026-05-26 OMJ - May 26, 12:30 UTCMay 26, 14:05 UTC1h 35m
2026-05-26 OMJ TMW → BWU May 26, 07:45 UTCMay 26, 08:50 UTC1h 5m
2026-05-26 OMJ - May 26, 07:05 UTCMay 26, 07:15 UTC10m
2026-05-26 OMJ - May 26, 05:54 UTCMay 26, 06:04 UTC10m
2026-05-25 OMJ - May 25, 21:40 UTCMay 25, 23:30 UTC1h 50m
2026-05-25 OMJ - May 25, 18:15 UTCMay 25, 19:10 UTC55m
2026-05-25 OMJ - May 25, 16:40 UTCMay 25, 18:05 UTC1h 25m
2026-05-25 OMJ - May 25, 12:50 UTCMay 25, 15:15 UTC2h 25m
2026-05-25 OMJ - May 25, 07:35 UTCMay 25, 09:20 UTC1h 45m
2026-05-24 OMJ - May 24, 23:10 UTCMay 24, 23:20 UTC10m
2026-05-24 OMJ - May 24, 21:05 UTCMay 24, 21:50 UTC45m
2026-05-22 OMJ - May 22, 07:10 UTCMay 22, 09:00 UTC1h 50m
2026-05-22 OMJ - May 22, 06:00 UTCMay 22, 06:10 UTC10m
2026-05-21 OMJ - May 21, 23:50 UTCMay 22, 00:00 UTC10m
2026-05-21 OMJ - May 21, 21:15 UTCMay 21, 22:55 UTC1h 40m
2026-05-21 OMJ MEL → BWU May 21, 16:45 UTCMay 21, 19:05 UTC2h 20m
2026-05-21 OMJ BWU → MEL May 21, 13:01 UTCMay 21, 15:30 UTC2h 30m
2026-05-21 OMJ - May 21, 07:05 UTCMay 21, 08:55 UTC1h 50m
2026-05-20 OMJ - May 20, 23:10 UTCMay 20, 23:20 UTC10m
2026-05-20 OMJ - May 20, 21:35 UTCMay 20, 22:40 UTC1h 5m
2026-05-20 OMJ - May 20, 16:10 UTCMay 20, 18:10 UTC2h 0m
2026-05-20 OMJ - May 20, 14:45 UTCMay 20, 15:15 UTC30m
2026-05-20 OMJ - May 20, 12:55 UTCMay 20, 14:35 UTC1h 40m
2026-05-20 OMJ TMW → BWU May 20, 08:20 UTCMay 20, 09:35 UTC1h 15m
2026-05-20 OMJ - May 20, 07:35 UTCMay 20, 07:45 UTC10m
2026-05-19 OMJ - May 19, 23:20 UTCMay 19, 23:40 UTC20m
2026-05-19 OMJ BWU → TMW May 19, 21:30 UTCMay 19, 22:45 UTC1h 15m
2026-05-19 OMJ MEL → BWU May 19, 16:30 UTCMay 19, 18:30 UTC2h 0m
2026-05-19 OMJ - May 19, 14:50 UTCMay 19, 15:20 UTC30m
2026-05-19 OMJ - May 19, 12:50 UTCMay 19, 14:40 UTC1h 50m
2026-05-19 OMJ - May 19, 07:20 UTCMay 19, 09:10 UTC1h 50m
2026-05-18 OMJ - May 18, 21:35 UTCMay 18, 23:35 UTC2h 0m
2026-05-18 OMJ MEL → BWU May 18, 15:45 UTCMay 18, 18:05 UTC2h 20m
2026-05-18 OMJ BWU → MEL May 18, 12:40 UTCMay 18, 14:50 UTC2h 10m
2026-05-18 OMJ - May 18, 08:30 UTCMay 18, 09:15 UTC45m
2026-05-18 OMJ - May 18, 07:35 UTCMay 18, 07:55 UTC20m
2026-05-17 OMJ - May 17, 22:15 UTCMay 17, 23:00 UTC45m
2026-05-17 OMJ - May 17, 20:55 UTCMay 17, 21:35 UTC40m
2026-05-15 OMJ - May 15, 08:40 UTCMay 15, 09:20 UTC40m
2026-05-15 OMJ - May 15, 07:35 UTCMay 15, 08:10 UTC35m

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

Mode-S 7C4899 frequently asked

What is Mode-S code 7C4899?
7C4899 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OMJ.
Where is Mode-S 7C4899 registered?
Mode-S code 7C4899 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4899 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 7C4899, octal 37044231, decimal 8,145,049.
What flights does 7C4899 operate?
Mode-S 7C4899 has broadcast 1 distinct callsign, including OMJ.