Apparatus

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sensors Mode-S transponder

7C2DFE

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-JDC · PIPER PA-28-140/150/160/180 · operated by IDOLTEST PTY LTD

Hex
7C2DFE
Octal
37026776
Decimal
8,138,238
Country
AU
Tail
VH-JDC
Type
P28A
No current signal · last broadcast 5d ago
Flights observed
122
Distinct callsigns
1
Country
AU
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 7C2DFE.

Country allocation

The ICAO 24-bit address 7C2DFE 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
JDC - 122 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 JDC BWU → BWU Jul 13, 00:20 UTCJul 13, 02:30 UTC2h 10m
2026-07-11 JDC BWU → BWU Jul 11, 23:30 UTCJul 12, 00:10 UTC40m
2026-07-11 JDC BWU → BWU Jul 11, 01:35 UTCJul 11, 02:05 UTC30m
2026-07-09 JDC - Jul 9, 23:55 UTCJul 10, 00:25 UTC30m
2026-07-09 JDC BWU → BWU Jul 9, 00:35 UTCJul 9, 01:10 UTC35m
2026-07-08 JDC BWU → BWU Jul 8, 01:05 UTCJul 8, 02:05 UTC1h 0m
2026-07-07 JDC BWU → BWU Jul 7, 23:10 UTCJul 8, 00:00 UTC50m
2026-07-05 JDC BWU → BWU Jul 5, 01:15 UTCJul 5, 01:50 UTC35m
2026-07-04 JDC BWU → BWU Jul 4, 22:55 UTCJul 4, 23:50 UTC55m
2026-07-04 JDC BWU → BWU Jul 4, 03:20 UTCJul 4, 04:00 UTC40m
2026-07-04 JDC BWU → BWU Jul 4, 00:15 UTCJul 4, 00:55 UTC40m
2026-07-03 JDC BWU → BWU Jul 3, 22:35 UTCJul 3, 23:15 UTC40m
2026-07-02 JDC BWU → BWU Jul 2, 01:10 UTCJul 2, 01:40 UTC30m
2026-07-01 JDC BWU → BWU Jul 1, 23:15 UTCJul 1, 23:45 UTC30m
2026-07-01 JDC BWU → BWU Jul 1, 04:05 UTCJul 1, 04:40 UTC35m
2026-06-30 JDC - Jun 30, 23:25 UTCJul 1, 00:15 UTC50m
2026-06-30 JDC - Jun 30, 04:40 UTCJun 30, 05:10 UTC30m
2026-06-30 JDC BWU → BWU Jun 30, 02:10 UTCJun 30, 02:45 UTC35m
2026-06-29 JDC BWU → BWU Jun 29, 03:29 UTCJun 29, 04:20 UTC50m
2026-06-24 JDC - Jun 24, 02:05 UTCJun 24, 03:15 UTC1h 10m
2026-06-23 JDC - Jun 23, 04:25 UTCJun 23, 05:20 UTC55m
2026-06-23 JDC BWU → CES Jun 23, 02:29 UTCJun 23, 03:25 UTC55m
2026-06-23 JDC - Jun 23, 00:35 UTCJun 23, 01:10 UTC35m
2026-06-22 JDC BWU → BWU Jun 22, 23:05 UTCJun 22, 23:35 UTC30m
2026-06-20 JDC BWU → BWU Jun 20, 04:04 UTCJun 20, 04:49 UTC45m
2026-06-20 JDC - Jun 20, 01:34 UTCJun 20, 02:19 UTC45m
2026-06-20 JDC - Jun 20, 00:04 UTCJun 20, 00:49 UTC45m
2026-06-18 JDC BWU → BWU Jun 18, 23:20 UTCJun 18, 23:55 UTC35m
2026-06-18 JDC - Jun 18, 03:25 UTCJun 18, 04:10 UTC45m
2026-06-18 JDC - Jun 18, 00:35 UTCJun 18, 01:35 UTC1h 0m
2026-06-17 JDC BWU → BWU Jun 17, 04:05 UTCJun 17, 04:55 UTC50m
2026-06-16 JDC BWU → BWU Jun 16, 23:00 UTCJun 16, 23:50 UTC50m
2026-06-16 JDC BWU → BWU Jun 16, 05:10 UTCJun 16, 05:55 UTC45m
2026-06-16 JDC BWU → BWU Jun 16, 03:25 UTCJun 16, 04:10 UTC45m
2026-06-16 JDC BWU → BWU Jun 16, 01:45 UTCJun 16, 02:29 UTC45m
2026-06-15 JDC - Jun 15, 23:54 UTCJun 16, 00:35 UTC40m
2026-06-15 JDC BWU → BWU Jun 15, 04:10 UTCJun 15, 04:45 UTC35m
2026-06-15 JDC BWU → BWU Jun 15, 01:00 UTCJun 15, 01:25 UTC25m
2026-06-13 JDC BWU → BWU Jun 13, 06:25 UTCJun 13, 07:35 UTC1h 10m
2026-06-13 JDC BWU → BWU Jun 13, 03:30 UTCJun 13, 04:25 UTC55m
2026-06-13 JDC BWU → BWU Jun 13, 01:30 UTCJun 13, 02:35 UTC1h 5m
2026-06-12 JDC BWU → BWU Jun 12, 03:05 UTCJun 12, 03:45 UTC40m
2026-06-12 JDC BWU → BWU Jun 12, 00:55 UTCJun 12, 01:45 UTC50m
2026-06-11 JDC BWU → BWU Jun 11, 23:10 UTCJun 11, 23:45 UTC35m
2026-06-10 JDC BWU → BWU Jun 10, 23:20 UTCJun 11, 00:05 UTC45m
2026-06-10 JDC BWU → BWU Jun 10, 02:45 UTCJun 10, 04:35 UTC1h 50m
2026-06-09 JDC BWU → BWU Jun 9, 23:20 UTCJun 10, 00:30 UTC1h 10m
2026-06-09 JDC - Jun 9, 01:20 UTCJun 9, 01:35 UTC15m
2026-06-09 JDC BWU → BWU Jun 9, 00:55 UTCJun 9, 01:10 UTC15m
2026-06-08 JDC - Jun 8, 23:05 UTCJun 8, 23:45 UTC40m

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

Mode-S 7C2DFE frequently asked

What is Mode-S code 7C2DFE?
7C2DFE is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-JDC.
Where is Mode-S 7C2DFE registered?
Mode-S code 7C2DFE is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C2DFE broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C2DFE, octal 37026776, decimal 8,138,238.
What flights does 7C2DFE operate?
Mode-S 7C2DFE has broadcast 1 distinct callsign, including JDC.