Apparatus

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sensors Mode-S transponder

7CAF5D

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-8XB · DE HAVILLAND DHC-8-400 Dash 8

Hex
7CAF5D
Octal
37127535
Decimal
8,171,357
Country
AU
Tail
VH-8XB
Type
DH8D
No current signal · last broadcast 2h ago
Flights observed
125
Distinct callsigns
19
Country
AU
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 7CAF5D.

Country allocation

The ICAO 24-bit address 7CAF5D 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 19 distinct

Callsign Airline Flights Last seen
CT204 - 17 2026-06-30
CT201 - 17 2026-07-07
CT203 - 15 2026-07-07
CT202 - 15 2026-07-07
CT348 - 8 2026-07-09
CT347 - 8 2026-07-09
CT2437 - 8 2026-07-13
CT2436 - 7 2026-07-13
CT346 - 5 2026-07-09
CT345 - 5 2026-07-09
CT402 - 4 2026-06-21
CT403 - 3 2026-06-22
CT342 - 3 2026-07-08
CT341 - 3 2026-07-07
CT353 - 2 2026-06-16
CT352 - 2 2026-06-16
CT603 - 1 2026-07-14
CT376 - 1 2026-07-10
CT375 - 1 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CT603 - Jul 14, 08:25 UTCJul 14, 09:05 UTC40m
2026-07-13 CT2437 - Jul 13, 07:15 UTCJul 13, 07:55 UTC40m
2026-07-13 CT2436 PER → GET Jul 13, 04:05 UTCJul 13, 04:50 UTC45m
2026-07-10 CT376 - Jul 10, 08:25 UTCJul 10, 08:55 UTC30m
2026-07-10 CT375 - Jul 10, 06:55 UTCJul 10, 07:25 UTC30m
2026-07-10 CT2437 - Jul 10, 04:50 UTCJul 10, 05:30 UTC40m
2026-07-10 CT2436 PER → GET Jul 10, 01:40 UTCJul 10, 02:30 UTC50m
2026-07-09 CT346 KGI → PER Jul 9, 23:10 UTCJul 10, 00:20 UTC1h 10m
2026-07-09 CT345 PER → KGI Jul 9, 21:20 UTCJul 9, 22:20 UTC1h 0m
2026-07-09 CT348 KGI → PER Jul 9, 07:35 UTCJul 9, 08:45 UTC1h 10m
2026-07-09 CT347 PER → KGI Jul 9, 05:45 UTCJul 9, 06:35 UTC50m
2026-07-08 CT342 - Jul 8, 06:50 UTCJul 8, 07:30 UTC40m
2026-07-07 CT341 - Jul 7, 21:10 UTCJul 7, 21:50 UTC40m
2026-07-07 CT203 - Jul 7, 08:40 UTCJul 7, 09:25 UTC45m
2026-07-07 CT202 - Jul 7, 01:40 UTCJul 7, 02:15 UTC35m
2026-07-07 CT201 - Jul 7, 00:00 UTCJul 7, 00:50 UTC50m
2026-06-30 CT204 - Jun 30, 12:05 UTCJun 30, 12:35 UTC30m
2026-06-30 CT203 - Jun 30, 09:50 UTCJun 30, 11:15 UTC1h 25m
2026-06-28 CT204 - Jun 28, 10:35 UTCJun 28, 11:09 UTC35m
2026-06-28 CT203 - Jun 28, 08:50 UTCJun 28, 09:25 UTC35m
2026-06-27 CT202 - Jun 27, 01:59 UTCJun 27, 02:39 UTC40m
2026-06-27 CT201 - Jun 27, 00:05 UTCJun 27, 00:44 UTC40m
2026-06-23 CT204 - Jun 23, 11:04 UTCJun 23, 11:40 UTC35m
2026-06-22 CT2437 - Jun 22, 06:54 UTCJun 22, 07:40 UTC45m
2026-06-22 CT2436 - Jun 22, 03:54 UTCJun 22, 04:40 UTC45m
2026-06-22 CT403 KGI → PER Jun 22, 00:04 UTCJun 22, 01:10 UTC1h 5m
2026-06-21 CT402 PER → KGI Jun 21, 22:04 UTCJun 21, 23:05 UTC1h 0m
2026-06-19 CT348 - Jun 19, 07:25 UTCJun 19, 08:29 UTC1h 5m
2026-06-19 CT347 PER → KGI Jun 19, 05:40 UTCJun 19, 06:35 UTC55m
2026-06-19 CT346 - Jun 19, 01:24 UTCJun 19, 02:45 UTC1h 20m
2026-06-18 CT345 PER → KGI Jun 18, 23:35 UTCJun 19, 00:34 UTC59m
2026-06-18 CT348 KGI → PER Jun 18, 07:35 UTCJun 18, 08:40 UTC1h 5m
2026-06-18 CT347 PER → KGI Jun 18, 05:55 UTCJun 18, 06:55 UTC1h 0m
2026-06-17 CT342 - Jun 17, 06:50 UTCJun 17, 07:35 UTC45m
2026-06-16 CT341 - Jun 16, 21:30 UTCJun 16, 22:05 UTC35m
2026-06-16 CT353 - Jun 16, 11:05 UTCJun 16, 12:00 UTC55m
2026-06-16 CT352 PER → GET Jun 16, 00:55 UTCJun 16, 01:35 UTC40m
2026-06-15 CT2437 - Jun 15, 06:55 UTCJun 15, 07:40 UTC45m
2026-06-15 CT2436 - Jun 15, 03:45 UTCJun 15, 04:25 UTC40m
2026-06-12 CT203 - Jun 12, 08:50 UTCJun 12, 09:35 UTC45m
2026-06-12 CT202 - Jun 12, 00:30 UTCJun 12, 01:05 UTC35m
2026-06-11 CT201 - Jun 11, 23:10 UTCJun 11, 23:50 UTC40m
2026-06-11 CT204 - Jun 11, 10:40 UTCJun 11, 11:15 UTC35m
2026-06-11 CT203 - Jun 11, 09:05 UTCJun 11, 09:55 UTC50m
2026-06-11 CT202 - Jun 11, 00:35 UTCJun 11, 01:10 UTC35m
2026-06-10 CT201 - Jun 10, 23:05 UTCJun 10, 23:45 UTC40m
2026-06-10 CT204 - Jun 10, 10:45 UTCJun 10, 11:20 UTC35m
2026-06-10 CT203 - Jun 10, 08:40 UTCJun 10, 09:25 UTC45m
2026-06-10 CT202 - Jun 10, 00:35 UTCJun 10, 01:10 UTC35m
2026-06-09 CT201 - Jun 9, 23:10 UTCJun 9, 23:50 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-8XB page for operator, model, and routing details .

Mode-S 7CAF5D frequently asked

What is Mode-S code 7CAF5D?
7CAF5D is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-8XB.
Where is Mode-S 7CAF5D registered?
Mode-S code 7CAF5D is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7CAF5D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7CAF5D, octal 37127535, decimal 8,171,357.
What flights does 7CAF5D operate?
Mode-S 7CAF5D has broadcast 19 distinct callsigns, including CT204, CT201, CT203, CT202, CT348.