Apparatus

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sensors Mode-S transponder

7C2419

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-HEZ · CESSNA 152 · operated by PILKINGTON, David John

Hex
7C2419
Octal
37022031
Decimal
8,135,705
Country
AU
Tail
VH-HEZ
Type
C152
No current signal · last broadcast 8h ago
Flights observed
123
Distinct callsigns
1
Country
AU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 7C2419.

Country allocation

The ICAO 24-bit address 7C2419 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
HEZ - 123 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HEZ - Jul 14, 02:10 UTCJul 14, 02:45 UTC35m
2026-07-14 HEZ - Jul 14, 00:55 UTCJul 14, 01:35 UTC40m
2026-07-11 HEZ - Jul 11, 01:35 UTCJul 11, 02:50 UTC1h 15m
2026-07-11 HEZ - Jul 11, 01:05 UTCJul 11, 01:30 UTC25m
2026-07-10 HEZ - Jul 10, 23:35 UTCJul 11, 00:05 UTC30m
2026-07-10 HEZ - Jul 10, 03:55 UTCJul 10, 04:45 UTC50m
2026-07-08 HEZ - Jul 8, 03:10 UTCJul 8, 03:20 UTC10m
2026-07-08 HEZ - Jul 8, 01:15 UTCJul 8, 01:50 UTC35m
2026-07-07 HEZ - Jul 7, 06:20 UTCJul 7, 06:55 UTC35m
2026-07-06 HEZ - Jul 6, 23:25 UTCJul 7, 00:10 UTC45m
2026-07-06 HEZ - Jul 6, 02:20 UTCJul 6, 02:40 UTC20m
2026-07-06 HEZ - Jul 6, 00:15 UTCJul 6, 01:20 UTC1h 5m
2026-07-05 HEZ - Jul 5, 00:50 UTCJul 5, 01:25 UTC35m
2026-07-04 HEZ - Jul 4, 03:25 UTCJul 4, 04:00 UTC35m
2026-07-01 HEZ - Jul 1, 01:00 UTCJul 1, 01:30 UTC30m
2026-06-30 HEZ - Jun 30, 23:50 UTCJul 1, 00:25 UTC35m
2026-06-28 HEZ - Jun 28, 04:10 UTCJun 28, 04:44 UTC35m
2026-06-28 HEZ - Jun 28, 01:25 UTCJun 28, 02:44 UTC1h 20m
2026-06-27 HEZ - Jun 27, 05:59 UTCJun 27, 06:35 UTC35m
2026-06-26 HEZ - Jun 26, 04:55 UTCJun 26, 05:10 UTC15m
2026-06-25 HEZ - Jun 25, 04:04 UTCJun 25, 04:40 UTC35m
2026-06-23 HEZ - Jun 23, 01:04 UTCJun 23, 01:45 UTC40m
2026-06-22 HEZ - Jun 22, 00:20 UTCJun 22, 01:40 UTC1h 20m
2026-06-21 HEZ - Jun 21, 06:29 UTCJun 21, 07:00 UTC30m
2026-06-21 HEZ - Jun 21, 05:04 UTCJun 21, 05:40 UTC35m
2026-06-21 HEZ - Jun 21, 01:25 UTCJun 21, 01:55 UTC30m
2026-06-20 HEZ - Jun 20, 23:39 UTCJun 21, 00:19 UTC40m
2026-06-20 HEZ - Jun 20, 05:29 UTCJun 20, 05:59 UTC30m
2026-06-18 HEZ - Jun 18, 01:10 UTCJun 18, 01:50 UTC40m
2026-06-17 HEZ - Jun 17, 06:05 UTCJun 17, 07:05 UTC1h 0m
2026-06-17 HEZ - Jun 17, 04:50 UTCJun 17, 05:20 UTC30m
2026-06-17 HEZ - Jun 17, 01:30 UTCJun 17, 02:10 UTC40m
2026-06-16 HEZ - Jun 16, 23:40 UTCJun 17, 00:15 UTC35m
2026-06-15 HEZ - Jun 15, 06:20 UTCJun 15, 06:35 UTC15m
2026-06-15 HEZ - Jun 15, 04:04 UTCJun 15, 04:20 UTC15m
2026-06-15 HEZ - Jun 15, 02:30 UTCJun 15, 03:05 UTC35m
2026-06-14 HEZ - Jun 14, 23:39 UTCJun 15, 00:15 UTC35m
2026-06-14 HEZ - Jun 14, 01:10 UTCJun 14, 01:55 UTC45m
2026-06-12 HEZ - Jun 12, 03:45 UTCJun 12, 04:20 UTC35m
2026-06-12 HEZ - Jun 12, 00:00 UTCJun 12, 00:40 UTC41m
2026-06-11 HEZ - Jun 11, 06:00 UTCJun 11, 07:00 UTC1h 0m
2026-06-08 HEZ - Jun 8, 04:40 UTCJun 8, 05:05 UTC25m
2026-06-08 HEZ - Jun 8, 01:35 UTCJun 8, 02:10 UTC35m
2026-06-07 HEZ - Jun 7, 03:20 UTCJun 7, 03:50 UTC30m
2026-06-06 HEZ - Jun 6, 05:55 UTCJun 6, 06:25 UTC30m
2026-06-06 HEZ - Jun 6, 04:40 UTCJun 6, 05:15 UTC35m
2026-06-06 HEZ - Jun 6, 01:05 UTCJun 6, 01:30 UTC25m
2026-06-05 HEZ - Jun 5, 02:35 UTCJun 5, 03:25 UTC50m
2026-06-01 HEZ - Jun 1, 01:40 UTCJun 1, 02:30 UTC50m
2026-05-30 HEZ - May 30, 04:15 UTCMay 30, 04:55 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-HEZ page for operator, model, and routing details .

Mode-S 7C2419 frequently asked

What is Mode-S code 7C2419?
7C2419 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-HEZ.
Where is Mode-S 7C2419 registered?
Mode-S code 7C2419 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C2419 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C2419, octal 37022031, decimal 8,135,705.
What flights does 7C2419 operate?
Mode-S 7C2419 has broadcast 1 distinct callsign, including HEZ.