Apparatus

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sensors Mode-S transponder

7C7D1A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YZW · PIPER PA-44 Seminole · operated by AIRFLITE PTY LTD

Hex
7C7D1A
Octal
37076432
Decimal
8,158,490
Country
AU
Tail
VH-YZW
Type
PA44
Broadcasting now · callsign YZW · 3,600 ft
Flights observed
198
Distinct callsigns
1
Country
AU
Last broadcast
1h ago

Current position

7C7D1A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C7D1A 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
YZW - 198 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 YZW - Jul 14, 00:30 UTCJul 14, 01:00 UTC30m
2026-07-10 YZW JAD → JAD Jul 10, 04:50 UTCJul 10, 07:40 UTC2h 50m
2026-07-10 YZW JAD → JAD Jul 10, 00:10 UTCJul 10, 00:20 UTC10m
2026-07-09 YZW - Jul 9, 12:50 UTCJul 9, 13:20 UTC30m
2026-07-09 YZW - Jul 9, 10:55 UTCJul 9, 11:55 UTC1h 0m
2026-07-09 YZW - Jul 9, 07:10 UTCJul 9, 08:00 UTC50m
2026-07-09 YZW JAD → JAD Jul 9, 06:50 UTCJul 9, 07:05 UTC15m
2026-07-09 YZW - Jul 9, 03:40 UTCJul 9, 04:20 UTC40m
2026-07-09 YZW - Jul 9, 03:10 UTCJul 9, 03:25 UTC15m
2026-07-08 YZW - Jul 8, 12:15 UTCJul 8, 13:15 UTC1h 0m
2026-07-08 YZW - Jul 8, 10:50 UTCJul 8, 11:20 UTC30m
2026-07-08 YZW JAD → JAD Jul 8, 10:30 UTCJul 8, 10:40 UTC10m
2026-07-08 YZW - Jul 8, 08:25 UTCJul 8, 08:55 UTC30m
2026-07-08 YZW - Jul 8, 06:40 UTCJul 8, 07:00 UTC20m
2026-07-08 YZW JAD → JAD Jul 8, 06:20 UTCJul 8, 06:25 UTC5m
2026-07-08 YZW JAD → JAD Jul 8, 04:20 UTCJul 8, 05:35 UTC1h 15m
2026-07-08 YZW JAD → JAD Jul 8, 04:00 UTCJul 8, 04:15 UTC15m
2026-07-08 YZW - Jul 8, 01:15 UTCJul 8, 02:40 UTC1h 25m
2026-07-08 YZW JAD → JAD Jul 8, 00:55 UTCJul 8, 01:10 UTC15m
2026-07-07 YZW JAD → JAD Jul 7, 10:45 UTCJul 7, 12:40 UTC1h 55m
2026-07-07 YZW JAD → JAD Jul 7, 10:10 UTCJul 7, 10:35 UTC25m
2026-07-07 YZW - Jul 7, 07:55 UTCJul 7, 08:15 UTC20m
2026-07-07 YZW - Jul 7, 06:20 UTCJul 7, 06:50 UTC30m
2026-07-07 YZW JAD → JAD Jul 7, 02:10 UTCJul 7, 04:45 UTC2h 35m
2026-07-06 YZW - Jul 6, 07:25 UTCJul 6, 08:55 UTC1h 30m
2026-07-04 YZW - Jul 4, 01:50 UTCJul 4, 03:25 UTC1h 35m
2026-07-03 YZW - Jul 3, 07:15 UTCJul 3, 07:40 UTC25m
2026-07-03 YZW - Jul 3, 05:15 UTCJul 3, 06:25 UTC1h 10m
2026-07-03 YZW - Jul 3, 01:05 UTCJul 3, 02:45 UTC1h 40m
2026-07-02 YZW - Jul 2, 06:51 UTCJul 2, 07:10 UTC19m
2026-07-02 YZW - Jul 2, 04:05 UTCJul 2, 04:20 UTC15m
2026-07-02 YZW - Jul 2, 01:45 UTCJul 2, 03:00 UTC1h 15m
2026-07-01 YZW JAD → JAD Jul 1, 06:10 UTCJul 1, 07:20 UTC1h 10m
2026-07-01 YZW JAD → JAD Jul 1, 03:40 UTCJul 1, 04:35 UTC55m
2026-07-01 YZW JAD → JAD Jul 1, 01:45 UTCJul 1, 02:55 UTC1h 10m
2026-06-30 YZW BUY → JAD Jun 30, 11:40 UTCJun 30, 12:15 UTC35m
2026-06-30 YZW JAD → BUY Jun 30, 10:20 UTCJun 30, 11:05 UTC45m
2026-06-29 YZW - Jun 29, 07:15 UTCJun 29, 08:14 UTC1h 0m
2026-06-29 YZW JAD → JAD Jun 29, 06:59 UTCJun 29, 07:05 UTC5m
2026-06-29 YZW - Jun 29, 02:30 UTCJun 29, 04:30 UTC2h 0m
2026-06-29 YZW - Jun 29, 01:25 UTCJun 29, 01:44 UTC20m
2026-06-26 YZW JAD → JAD Jun 26, 04:59 UTCJun 26, 06:29 UTC1h 30m
2026-06-26 YZW JAD → JAD Jun 26, 04:39 UTCJun 26, 04:55 UTC15m
2026-06-25 YZW JAD → JAD Jun 25, 06:55 UTCJun 25, 07:59 UTC1h 5m
2026-06-25 YZW JFM → JAD Jun 25, 02:25 UTCJun 25, 03:50 UTC1h 25m
2026-06-25 YZW JAD → JAD Jun 25, 02:05 UTCJun 25, 02:19 UTC15m
2026-06-24 YZW - Jun 24, 07:40 UTCJun 24, 07:59 UTC20m
2026-06-24 YZW - Jun 24, 05:05 UTCJun 24, 05:40 UTC35m
2026-06-24 YZW - Jun 24, 02:09 UTCJun 24, 03:04 UTC55m
2026-06-24 YZW - Jun 24, 00:30 UTCJun 24, 00:49 UTC20m

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

Mode-S 7C7D1A frequently asked

What is Mode-S code 7C7D1A?
7C7D1A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YZW.
Where is Mode-S 7C7D1A registered?
Mode-S code 7C7D1A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7D1A broadcasting right now?
Yes. Mode-S 7C7D1A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7D1A, octal 37076432, decimal 8,158,490.
What flights does 7C7D1A operate?
Mode-S 7C7D1A has broadcast 1 distinct callsign, including YZW.