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sensors Mode-S transponder

7C1597

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-EJT · CESSNA 525A Citation CJ2 · operated by AIR LINK PTY. LIMITED

Hex
7C1597
Octal
37012627
Decimal
8,131,991
Country
AU
Tail
VH-EJT
Type
C25A
No current signal · last broadcast 5h ago
Flights observed
47
Distinct callsigns
1
Country
AU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 7C1597.

Country allocation

The ICAO 24-bit address 7C1597 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
EJT - 47 2026-07-14

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-14 EJT - Jul 14, 02:00 UTCJul 14, 03:15 UTC1h 15m
2026-07-07 EJT - Jul 7, 00:05 UTCJul 7, 02:35 UTC2h 30m
2026-07-03 EJT - Jul 3, 07:25 UTCJul 3, 07:45 UTC20m
2026-07-03 EJT - Jul 3, 00:20 UTCJul 3, 00:50 UTC30m
2026-07-02 EJT - Jul 2, 09:40 UTCJul 2, 10:25 UTC45m
2026-07-02 EJT BWU → ABX Jul 2, 07:35 UTCJul 2, 08:35 UTC1h 0m
2026-07-02 EJT - Jul 2, 05:10 UTCJul 2, 06:51 UTC1h 41m
2026-07-02 EJT - Jul 2, 02:00 UTCJul 2, 03:40 UTC1h 40m
2026-06-28 EJT - Jun 28, 04:15 UTCJun 28, 05:34 UTC1h 20m
2026-06-28 EJT - Jun 28, 01:55 UTCJun 28, 03:00 UTC1h 5m
2026-06-26 EJT - Jun 26, 04:55 UTCJun 26, 05:19 UTC25m
2026-06-26 EJT - Jun 26, 04:10 UTCJun 26, 04:24 UTC15m
2026-06-24 EJT - Jun 24, 23:54 UTCJun 25, 01:09 UTC1h 15m
2026-06-23 EJT - Jun 23, 03:49 UTCJun 23, 04:14 UTC25m
2026-06-22 EJT - Jun 22, 23:24 UTCJun 23, 00:00 UTC35m
2026-06-14 EJT - Jun 14, 22:55 UTCJun 14, 23:20 UTC24m
2026-06-14 EJT - Jun 14, 21:40 UTCJun 14, 22:00 UTC20m
2026-06-14 EJT - Jun 14, 05:00 UTCJun 14, 05:25 UTC25m
2026-06-14 EJT - Jun 14, 00:55 UTCJun 14, 01:20 UTC25m
2026-06-13 EJT BWU → BWU Jun 13, 00:00 UTCJun 13, 00:25 UTC25m
2026-06-12 EJT - Jun 12, 08:00 UTCJun 12, 08:30 UTC30m
2026-06-11 EJT - Jun 11, 23:50 UTCJun 12, 00:15 UTC25m
2026-06-11 EJT - Jun 11, 06:20 UTCJun 11, 06:40 UTC20m
2026-06-11 EJT - Jun 11, 04:40 UTCJun 11, 05:00 UTC20m
2026-04-26 EJT - Apr 26, 08:00 UTCApr 26, 09:10 UTC1h 10m
2026-04-26 EJT PER → MEB Apr 26, 03:55 UTCApr 26, 07:35 UTC3h 40m
2026-04-25 EJT BWU → PER Apr 25, 18:35 UTCApr 26, 00:30 UTC5h 55m
2026-04-23 EJT - Apr 23, 05:05 UTCApr 23, 06:20 UTC1h 15m
2026-04-23 EJT - Apr 23, 03:10 UTCApr 23, 04:15 UTC1h 5m
2026-04-21 EJT - Apr 21, 10:25 UTCApr 21, 10:40 UTC15m
2026-04-21 EJT - Apr 21, 08:30 UTCApr 21, 09:50 UTC1h 20m
2026-04-20 EJT - Apr 20, 22:55 UTCApr 21, 00:05 UTC1h 10m
2026-04-20 EJT BWU → SYD Apr 20, 22:15 UTCApr 20, 22:25 UTC10m
2026-04-16 EJT SYD → BWU Apr 16, 03:24 UTCApr 16, 03:30 UTC5m
2026-04-16 EJT - Apr 16, 02:09 UTCApr 16, 02:54 UTC45m
2026-04-15 EJT - Apr 15, 21:05 UTCApr 15, 22:25 UTC1h 20m
2026-04-15 EJT - Apr 15, 20:35 UTCApr 15, 21:00 UTC25m
2026-04-15 EJT BWU → SYD Apr 15, 19:55 UTCApr 15, 20:05 UTC10m
2026-04-15 EJT - Apr 15, 05:00 UTCApr 15, 05:40 UTC40m
2026-04-15 EJT - Apr 15, 04:35 UTCApr 15, 04:50 UTC15m
2026-04-14 EJT - Apr 14, 22:55 UTCApr 14, 23:05 UTC10m
2026-04-14 EJT - Apr 14, 21:50 UTCApr 14, 22:50 UTC1h 0m
2026-04-13 EJT - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 EJT - Apr 13, 03:55 UTCApr 13, 04:40 UTC45m
2026-04-13 EJT - Apr 13, 03:35 UTCApr 13, 04:15 UTC40m
2026-04-13 EJT SYD → MEB Apr 13, 01:10 UTCApr 13, 02:30 UTC1h 20m
2026-04-12 EJT BWU → SYD Apr 12, 23:55 UTCApr 13, 00:10 UTC15m

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

Mode-S 7C1597 frequently asked

What is Mode-S code 7C1597?
7C1597 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-EJT.
Where is Mode-S 7C1597 registered?
Mode-S code 7C1597 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C1597 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C1597, octal 37012627, decimal 8,131,991.
What flights does 7C1597 operate?
Mode-S 7C1597 has broadcast 1 distinct callsign, including EJT.