sensors Mode-S transponder

7C29DA

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-IJW · BOEING 737-800 · operated by VIRGIN AUSTRALIA AIRLINES PTY LTD

Hex
7C29DA
Octal
37024732
Decimal
8,137,178
Country
AU
Tail
VH-IJW
Type
B738
Transponder active on ground
Flights observed
5
Distinct callsigns
5
Country
AU
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 7C29DA.

Country allocation

The ICAO 24-bit address 7C29DA 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 5 distinct

Callsign Airline Flights Last seen
VOZ866 - 1 2026-04-14
VOZ819 - 1 2026-04-13
VOZ419 - 1 2026-04-14
VOZ1465 Virgin Australia 1 2026-04-13
VOZ1456 - 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 VOZ866 - Apr 14, 07:20 UTCApr 14, 08:45 UTC1h 25m
2026-04-14 VOZ419 - Apr 14, 05:15 UTCApr 14, 05:55 UTC40m
2026-04-13 VOZ819 MEL → SYD Apr 13, 22:10 UTCApr 13, 23:05 UTC55m
2026-04-13 VOZ1456 - Apr 13, 18:40 UTCApr 13, 19:10 UTC30m
2026-04-13 VOZ1465 MEL → DRW Apr 13, 09:55 UTCApr 13, 10:25 UTC30m

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

Mode-S 7C29DA frequently asked

What is Mode-S code 7C29DA?
7C29DA is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-IJW.
Where is Mode-S 7C29DA registered?
Mode-S code 7C29DA is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C29DA broadcasting right now?
Mode-S 7C29DA 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 7C29DA, octal 37024732, decimal 8,137,178.
What flights does 7C29DA operate?
Mode-S 7C29DA has broadcast 5 distinct callsigns, including VOZ866, VOZ819, VOZ419, VOZ1465, VOZ1456.