Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C617A

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-TJG · AGUSTA AW-139 · operated by HELICORP PTY. LTD.

Hex
7C617A
Octal
37060572
Decimal
8,151,418
Country
AU
Tail
VH-TJG
Type
A139
No current signal · last broadcast 4h ago
Flights observed
80
Distinct callsigns
1
Country
AU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7C617A.

Country allocation

The ICAO 24-bit address 7C617A 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
RSCU203 - 80 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 RSCU203 - May 30, 08:10 UTCMay 30, 08:20 UTC10m
2026-05-29 RSCU203 - May 29, 14:10 UTCMay 29, 14:45 UTC35m
2026-05-29 RSCU203 - May 29, 12:55 UTCMay 29, 13:25 UTC30m
2026-05-29 RSCU203 - May 29, 08:35 UTCMay 29, 08:50 UTC15m
2026-05-29 RSCU203 - May 29, 03:20 UTCMay 29, 03:30 UTC10m
2026-05-28 RSCU203 - May 28, 19:50 UTCMay 28, 20:05 UTC15m
2026-05-28 RSCU203 - May 28, 18:00 UTCMay 28, 18:25 UTC25m
2026-05-28 RSCU203 - May 28, 04:35 UTCMay 28, 05:00 UTC25m
2026-05-28 RSCU203 - May 28, 02:35 UTCMay 28, 02:45 UTC10m
2026-05-27 RSCU203 - May 27, 07:25 UTCMay 27, 07:40 UTC15m
2026-05-27 RSCU203 - May 27, 04:59 UTCMay 27, 05:14 UTC15m
2026-05-26 RSCU203 - May 26, 23:19 UTCMay 26, 23:35 UTC15m
2026-05-25 RSCU203 - May 25, 11:25 UTCMay 25, 11:40 UTC15m
2026-05-25 RSCU203 - May 25, 07:45 UTCMay 25, 08:05 UTC20m
2026-05-24 RSCU203 - May 24, 14:55 UTCMay 24, 15:10 UTC15m
2026-05-24 RSCU203 - May 24, 11:50 UTCMay 24, 12:00 UTC10m
2026-05-24 RSCU203 - May 24, 04:05 UTCMay 24, 04:15 UTC10m
2026-05-24 RSCU203 - May 24, 02:10 UTCMay 24, 02:30 UTC20m
2026-05-23 RSCU203 - May 23, 10:35 UTCMay 23, 10:50 UTC15m
2026-05-23 RSCU203 - May 23, 09:05 UTCMay 23, 09:25 UTC20m
2026-05-22 RSCU203 - May 22, 21:40 UTCMay 22, 22:15 UTC35m
2026-05-22 RSCU203 - May 22, 11:50 UTCMay 22, 12:40 UTC50m
2026-05-22 RSCU203 - May 22, 03:15 UTCMay 22, 04:00 UTC45m
2026-05-21 RSCU203 - May 21, 10:25 UTCMay 21, 10:40 UTC15m
2026-05-21 RSCU203 - May 21, 06:30 UTCMay 21, 06:40 UTC10m
2026-05-20 RSCU203 - May 20, 02:50 UTCMay 20, 03:05 UTC15m
2026-05-19 RSCU203 - May 19, 04:15 UTCMay 19, 04:35 UTC20m
2026-05-17 RSCU203 - May 17, 02:40 UTCMay 17, 02:50 UTC10m
2026-05-16 RSCU203 - May 16, 11:51 UTCMay 16, 12:01 UTC10m
2026-05-16 RSCU203 - May 16, 08:41 UTCMay 16, 08:55 UTC15m
2026-05-16 RSCU203 - May 16, 01:35 UTCMay 16, 01:45 UTC10m
2026-05-15 RSCU203 - May 15, 23:45 UTCMay 16, 00:00 UTC15m
2026-05-14 RSCU203 - May 14, 11:20 UTCMay 14, 11:35 UTC15m
2026-05-14 RSCU203 - May 14, 07:30 UTCMay 14, 07:45 UTC15m
2026-05-13 RSCU203 - May 13, 23:35 UTCMay 13, 23:45 UTC10m
2026-05-13 RSCU203 - May 13, 22:00 UTCMay 13, 22:10 UTC10m
2026-05-13 RSCU203 - May 13, 05:00 UTCMay 13, 05:20 UTC20m
2026-05-13 RSCU203 - May 13, 02:05 UTCMay 13, 02:25 UTC20m
2026-05-12 RSCU203 - May 12, 08:10 UTCMay 12, 08:20 UTC10m
2026-05-12 RSCU203 - May 12, 03:25 UTCMay 12, 03:35 UTC10m
2026-05-11 RSCU203 - May 11, 13:20 UTCMay 11, 13:30 UTC10m
2026-05-11 RSCU203 - May 11, 08:00 UTCMay 11, 08:20 UTC20m
2026-05-10 RSCU203 - May 10, 11:35 UTCMay 10, 11:45 UTC10m
2026-05-10 RSCU203 - May 10, 05:25 UTCMay 10, 05:34 UTC10m
2026-05-09 RSCU203 - May 9, 08:20 UTCMay 9, 08:30 UTC10m
2026-05-06 RSCU203 - May 6, 03:15 UTCMay 6, 03:55 UTC40m
2026-05-06 RSCU203 - May 6, 01:55 UTCMay 6, 02:05 UTC10m
2026-05-05 RSCU203 - May 5, 01:30 UTCMay 5, 01:45 UTC15m
2026-05-02 RSCU203 - May 2, 13:10 UTCMay 2, 13:20 UTC10m
2026-04-29 RSCU203 - Apr 29, 23:50 UTCApr 30, 00:20 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-TJG page for operator, model, and routing details .

Mode-S 7C617A frequently asked

What is Mode-S code 7C617A?
7C617A is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-TJG.
Where is Mode-S 7C617A registered?
Mode-S code 7C617A is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C617A broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C617A, octal 37060572, decimal 8,151,418.
What flights does 7C617A operate?
Mode-S 7C617A has broadcast 1 distinct callsign, including RSCU203.