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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 Jul 26, 08:45 UTC
Flights observed
171
Distinct callsigns
1
Country
AU
Last broadcast
Jul 26, 08:45 UTC

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 - 171 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RSCU203 - Jul 26, 08:35 UTCJul 26, 08:45 UTC10m
2026-07-26 RSCU203 - Jul 26, 04:55 UTCJul 26, 05:15 UTC20m
2026-07-25 RSCU203 - Jul 25, 04:40 UTCJul 25, 04:50 UTC10m
2026-07-25 RSCU203 - Jul 25, 00:20 UTCJul 25, 00:30 UTC10m
2026-07-24 RSCU203 - Jul 24, 16:10 UTCJul 24, 16:20 UTC10m
2026-07-24 RSCU203 - Jul 24, 12:15 UTCJul 24, 12:25 UTC10m
2026-07-24 RSCU203 - Jul 24, 07:55 UTCJul 24, 08:40 UTC45m
2026-07-24 RSCU203 - Jul 24, 06:45 UTCJul 24, 07:10 UTC25m
2026-07-24 RSCU203 - Jul 24, 04:10 UTCJul 24, 05:10 UTC1h 0m
2026-07-23 RSCU203 - Jul 23, 13:35 UTCJul 23, 13:55 UTC20m
2026-07-23 RSCU203 - Jul 23, 11:35 UTCJul 23, 11:45 UTC10m
2026-07-23 RSCU203 - Jul 23, 05:30 UTCJul 23, 05:40 UTC10m
2026-07-21 RSCU203 - Jul 21, 13:45 UTCJul 21, 13:55 UTC10m
2026-07-21 RSCU203 - Jul 21, 11:50 UTCJul 21, 12:00 UTC10m
2026-07-21 RSCU203 - Jul 21, 04:40 UTCJul 21, 04:50 UTC10m
2026-07-19 RSCU203 - Jul 19, 11:15 UTCJul 19, 11:40 UTC25m
2026-07-19 RSCU203 - Jul 19, 06:25 UTCJul 19, 06:35 UTC10m
2026-07-19 RSCU203 - Jul 19, 04:50 UTCJul 19, 05:00 UTC10m
2026-07-19 RSCU203 - Jul 19, 02:10 UTCJul 19, 02:25 UTC15m
2026-07-19 RSCU203 - Jul 19, 00:05 UTCJul 19, 00:15 UTC10m
2026-07-18 RSCU203 - Jul 18, 12:50 UTCJul 18, 13:00 UTC10m
2026-07-18 RSCU203 - Jul 18, 11:25 UTCJul 18, 11:35 UTC10m
2026-07-18 RSCU203 - Jul 18, 06:40 UTCJul 18, 07:10 UTC30m
2026-07-18 RSCU203 - Jul 18, 04:35 UTCJul 18, 05:05 UTC30m
2026-07-18 RSCU203 - Jul 18, 03:50 UTCJul 18, 04:10 UTC20m
2026-07-18 RSCU203 - Jul 18, 01:20 UTCJul 18, 02:25 UTC1h 5m
2026-07-17 RSCU203 - Jul 17, 06:25 UTCJul 17, 06:35 UTC10m
2026-07-17 RSCU203 - Jul 17, 03:14 UTCJul 17, 03:25 UTC10m
2026-07-17 RSCU203 - Jul 17, 00:45 UTCJul 17, 00:55 UTC10m
2026-07-16 RSCU203 - Jul 16, 05:40 UTCJul 16, 05:50 UTC10m
2026-07-15 RSCU203 - Jul 15, 12:10 UTCJul 15, 12:20 UTC10m
2026-07-14 RSCU203 - Jul 14, 00:50 UTCJul 14, 01:05 UTC15m
2026-07-12 RSCU203 - Jul 12, 03:35 UTCJul 12, 04:01 UTC25m
2026-07-11 RSCU203 - Jul 11, 11:25 UTCJul 11, 11:55 UTC30m
2026-07-11 RSCU203 - Jul 11, 10:40 UTCJul 11, 11:20 UTC40m
2026-07-11 RSCU203 - Jul 11, 08:25 UTCJul 11, 09:20 UTC55m
2026-07-11 RSCU203 - Jul 11, 03:05 UTCJul 11, 03:15 UTC10m
2026-07-10 RSCU203 - Jul 10, 10:15 UTCJul 10, 10:25 UTC10m
2026-07-10 RSCU203 - Jul 10, 07:35 UTCJul 10, 07:45 UTC10m
2026-07-10 RSCU203 - Jul 10, 06:25 UTCJul 10, 06:35 UTC10m
2026-07-09 RSCU203 - Jul 9, 01:55 UTCJul 9, 02:05 UTC10m
2026-07-08 RSCU203 - Jul 8, 22:25 UTCJul 8, 22:35 UTC10m
2026-07-08 RSCU203 - Jul 8, 05:45 UTCJul 8, 05:55 UTC10m
2026-07-08 RSCU203 - Jul 8, 04:10 UTCJul 8, 04:20 UTC10m
2026-07-06 RSCU203 - Jul 6, 16:00 UTCJul 6, 16:25 UTC25m
2026-07-06 RSCU203 - Jul 6, 14:30 UTCJul 6, 15:05 UTC35m
2026-07-04 RSCU203 - Jul 4, 14:30 UTCJul 4, 14:55 UTC25m
2026-07-04 RSCU203 - Jul 4, 11:55 UTCJul 4, 12:10 UTC15m
2026-07-01 RSCU203 - Jul 1, 05:05 UTCJul 1, 05:40 UTC35m
2026-07-01 RSCU203 - Jul 1, 04:15 UTCJul 1, 04:35 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-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 Jul 26, 08:45 UTC.
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.