Apparatus

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sensors Mode-S transponder

7C16D6

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-ESO · CESSNA 172 Skyhawk · operated by INTERAIR PTY. LTD.

Hex
7C16D6
Octal
37013326
Decimal
8,132,310
Country
AU
Tail
VH-ESO
Type
C172
No current signal · last broadcast 3h ago
Flights observed
67
Distinct callsigns
1
Country
AU
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 7C16D6.

Country allocation

The ICAO 24-bit address 7C16D6 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
ESO - 67 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ESO MEB → MEB May 30, 05:50 UTCMay 30, 07:00 UTC1h 10m
2026-05-30 ESO MEB → MEB May 30, 01:50 UTCMay 30, 04:20 UTC2h 30m
2026-05-29 ESO MEB → MEB May 29, 22:25 UTCMay 29, 23:15 UTC50m
2026-05-29 ESO - May 29, 02:50 UTCMay 29, 03:20 UTC30m
2026-05-29 ESO - May 29, 00:35 UTCMay 29, 01:15 UTC40m
2026-05-28 ESO MEB → MEB May 28, 22:20 UTCMay 28, 23:35 UTC1h 15m
2026-05-25 ESO - May 25, 03:55 UTCMay 25, 04:20 UTC25m
2026-05-25 ESO - May 25, 03:00 UTCMay 25, 03:50 UTC50m
2026-05-24 ESO - May 24, 03:20 UTCMay 24, 03:50 UTC30m
2026-05-24 ESO MEB → MEB May 24, 00:35 UTCMay 24, 01:10 UTC35m
2026-05-23 ESO MEB → MEB May 23, 22:30 UTCMay 23, 23:20 UTC50m
2026-05-23 ESO MEB → MEB May 23, 03:25 UTCMay 23, 05:05 UTC1h 40m
2026-05-23 ESO MEB → MEB May 23, 01:10 UTCMay 23, 02:10 UTC1h 0m
2026-05-22 ESO MEB → MEB May 22, 22:05 UTCMay 22, 23:55 UTC1h 50m
2026-05-22 ESO MEB → MEB May 22, 05:20 UTCMay 22, 06:40 UTC1h 20m
2026-05-22 ESO - May 22, 03:05 UTCMay 22, 04:30 UTC1h 25m
2026-05-22 ESO MEB → HLT May 22, 00:35 UTCMay 22, 02:20 UTC1h 45m
2026-05-21 ESO MEB → MEB May 21, 05:05 UTCMay 21, 06:25 UTC1h 20m
2026-05-15 ESO - May 15, 22:50 UTCMay 16, 00:15 UTC1h 25m
2026-05-15 ESO - May 15, 05:50 UTCMay 15, 06:55 UTC1h 5m
2026-05-14 ESO MEB → MEB May 14, 06:50 UTCMay 14, 07:40 UTC50m
2026-05-14 ESO MEB → MEB May 14, 03:05 UTCMay 14, 03:45 UTC40m
2026-05-13 ESO MEB → MEB May 13, 05:15 UTCMay 13, 06:10 UTC55m
2026-05-13 ESO - May 13, 03:10 UTCMay 13, 03:40 UTC30m
2026-05-13 ESO - May 13, 00:00 UTCMay 13, 00:50 UTC50m
2026-05-12 ESO MEB → MEB May 12, 21:45 UTCMay 12, 22:15 UTC30m
2026-05-12 ESO MEB → MEB May 12, 06:10 UTCMay 12, 07:15 UTC1h 5m
2026-05-12 ESO MEB → MEB May 12, 04:50 UTCMay 12, 05:35 UTC45m
2026-05-11 ESO MEB → MEB May 11, 03:00 UTCMay 11, 03:25 UTC25m
2026-05-11 ESO MEB → MEB May 11, 00:19 UTCMay 11, 01:50 UTC1h 30m
2026-05-10 ESO MEB → MEB May 10, 21:59 UTCMay 10, 22:25 UTC25m
2026-05-10 ESO MEB → MEB May 10, 04:34 UTCMay 10, 07:04 UTC2h 30m
2026-05-10 ESO - May 10, 02:45 UTCMay 10, 03:35 UTC50m
2026-05-05 ESO - May 5, 03:25 UTCMay 5, 04:15 UTC50m
2026-05-01 ESO MEB → MEB May 1, 04:45 UTCMay 1, 05:30 UTC45m
2026-04-30 ESO - Apr 30, 22:10 UTCApr 30, 22:35 UTC25m
2026-04-30 ESO - Apr 30, 21:05 UTCApr 30, 21:35 UTC30m
2026-04-30 ESO MEB → MEB Apr 30, 01:05 UTCApr 30, 01:50 UTC45m
2026-04-29 ESO - Apr 29, 23:35 UTCApr 30, 00:05 UTC30m
2026-04-29 ESO - Apr 29, 22:00 UTCApr 29, 22:45 UTC45m
2026-04-29 ESO - Apr 29, 05:15 UTCApr 29, 05:45 UTC30m
2026-04-29 ESO - Apr 29, 04:29 UTCApr 29, 05:09 UTC40m
2026-04-28 ESO MEB → MEB Apr 28, 23:25 UTCApr 29, 00:45 UTC1h 20m
2026-04-25 ESO MEB → MEB Apr 25, 01:35 UTCApr 25, 02:25 UTC50m
2026-04-24 ESO MEB → MEB Apr 24, 22:45 UTCApr 25, 00:10 UTC1h 25m
2026-04-22 ESO - Apr 22, 23:10 UTCApr 23, 00:40 UTC1h 30m
2026-04-22 ESO - Apr 22, 21:30 UTCApr 22, 22:35 UTC1h 5m
2026-04-20 ESO MEB → MEB Apr 20, 01:10 UTCApr 20, 03:50 UTC2h 40m
2026-04-19 ESO - Apr 19, 22:30 UTCApr 19, 23:50 UTC1h 20m
2026-04-19 ESO - Apr 19, 06:50 UTCApr 19, 07:30 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-ESO page for operator, model, and routing details .

Mode-S 7C16D6 frequently asked

What is Mode-S code 7C16D6?
7C16D6 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-ESO.
Where is Mode-S 7C16D6 registered?
Mode-S code 7C16D6 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C16D6 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C16D6, octal 37013326, decimal 8,132,310.
What flights does 7C16D6 operate?
Mode-S 7C16D6 has broadcast 1 distinct callsign, including ESO.