Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C4A45

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OYF · AIRBUS A-321neo · operated by JETSTAR AIRWAYS PTY LIMITED

Hex
7C4A45
Octal
37045105
Decimal
8,145,477
Country
AU
Tail
VH-OYF
Type
A21N
No current signal · last broadcast Jul 26, 12:15 UTC
Flights observed
298
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 12:15 UTC

Last known position

Most recent position reported by Mode-S 7C4A45.

Country allocation

The ICAO 24-bit address 7C4A45 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 20 distinct

Callsign Airline Flights Last seen
JST203 Jetstar Airways 11 2026-05-02
JST204 Jetstar Airways 9 2026-05-02
JST987 - 8 2026-07-13
JST039 - 8 2026-07-07
JST986 - 7 2026-07-13
JST508 - 7 2026-07-12
JST505 - 7 2026-07-12
JST108 - 7 2026-06-25
JST043 - 7 2026-06-22
JST031 Jetstar Airways 7 2026-07-23
JST974 - 6 2026-07-18
JST038 Jetstar Airways 6 2026-05-20
JST037 Jetstar Airways 6 2026-07-25
JST76 - 5 2026-07-19
JST032 - 5 2026-07-20
JST971 - 4 2026-07-17
JST964 - 4 2026-04-14
JST75 Jetstar Airways 4 2026-07-19
JST514 - 4 2026-07-12
JST511 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JST113 DPS → PER Jul 26, 11:45 UTCJul 26, 12:15 UTC30m
2026-07-25 JST120 NAN → SYD Jul 25, 23:40 UTCJul 26, 09:10 UTC9h 31m
2026-07-25 JST037 SYD → DPS Jul 25, 06:55 UTCJul 25, 20:25 UTC13h 30m
2026-07-24 JST112 PER → DPS Jul 24, 12:05 UTCJul 25, 02:30 UTC14h 25m
2026-07-23 JST031 MEL → DPS Jul 23, 21:05 UTCJul 24, 09:40 UTC12h 35m
2026-07-23 JST033 CNS → MEL Jul 23, 06:25 UTCJul 23, 19:15 UTC12h 50m
2026-07-22 JST33 MEL → DPS Jul 22, 20:35 UTCJul 23, 04:15 UTC7h 40m
2026-07-22 JST973 - Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-22 JST970 MEL → PER Jul 22, 03:10 UTCJul 22, 04:35 UTC1h 25m
2026-07-21 JST437 OOL → MEL Jul 21, 23:40 UTCJul 22, 01:55 UTC2h 15m
2026-07-21 JST432 MEL → OOL Jul 21, 20:55 UTCJul 21, 22:35 UTC1h 40m
2026-07-20 JST032 PER → MEL Jul 20, 23:10 UTCJul 21, 08:55 UTC9h 45m
2026-07-20 JST116 PER → DPS Jul 20, 09:30 UTCJul 20, 17:35 UTC8h 5m
2026-07-19 JST110 PER → DPS Jul 19, 23:35 UTCJul 20, 07:50 UTC8h 15m
2026-07-19 JST76 - Jul 19, 17:10 UTCJul 19, 22:00 UTC4h 50m
2026-07-19 JST76 - Jul 19, 15:50 UTCJul 19, 16:05 UTC15m
2026-07-19 JST75 PER → BKK Jul 19, 13:50 UTCJul 19, 14:15 UTC25m
2026-07-19 JST75 PER → BKK Jul 19, 07:25 UTCJul 19, 12:40 UTC5h 15m
2026-07-19 JST858 ADL → PER Jul 19, 01:50 UTCJul 19, 04:55 UTC3h 5m
2026-07-18 JST857 PER → ADL Jul 18, 22:10 UTCJul 19, 00:25 UTC2h 15m
2026-07-18 JST974 - Jul 18, 10:40 UTCJul 18, 11:05 UTC25m
2026-07-18 JST974 MEL → PER Jul 18, 06:35 UTCJul 18, 10:30 UTC3h 55m
2026-07-18 JST975 PER → ADL Jul 18, 01:50 UTCJul 18, 04:50 UTC3h 1m
2026-07-17 JST972 MEL → PER Jul 17, 20:29 UTCJul 18, 00:25 UTC3h 55m
2026-07-17 JST971 PER → MEL Jul 17, 16:04 UTCJul 17, 19:05 UTC3h 0m
2026-07-17 JST974 - Jul 17, 12:35 UTCJul 17, 13:05 UTC30m
2026-07-17 JST974 - Jul 17, 09:30 UTCJul 17, 10:40 UTC1h 10m
2026-07-17 JST451 - Jul 17, 05:50 UTCJul 17, 07:40 UTC1h 50m
2026-07-17 JST448 MEL → OOL Jul 17, 02:59 UTCJul 17, 04:44 UTC1h 45m
2026-07-16 JST777 ADL → MEL Jul 16, 23:44 UTCJul 17, 00:45 UTC1h 0m
2026-07-16 JST760 SYD → ADL Jul 16, 20:45 UTCJul 16, 22:25 UTC1h 40m
2026-07-16 JST532 MEL → SYD Jul 16, 11:45 UTCJul 16, 12:49 UTC1h 5m
2026-07-16 JST531 SYD → MEL Jul 16, 10:04 UTCJul 16, 11:05 UTC1h 0m
2026-07-16 JST787 MCY → SYD Jul 16, 07:00 UTCJul 16, 08:35 UTC1h 35m
2026-07-16 JST786 SYD → MCY Jul 16, 04:45 UTCJul 16, 06:00 UTC1h 15m
2026-07-15 JST913 SYD → SYD Jul 15, 20:55 UTCJul 16, 03:00 UTC6h 5m
2026-07-15 JST825 BNE → SYD Jul 15, 11:05 UTCJul 15, 12:15 UTC1h 10m
2026-07-15 JST822 SYD → BNE Jul 15, 09:00 UTCJul 15, 10:10 UTC1h 10m
2026-07-15 JST417 - Jul 15, 06:45 UTCJul 15, 07:55 UTC1h 10m
2026-07-15 JST412 SYD → OOL Jul 15, 04:45 UTCJul 15, 05:45 UTC1h 0m
2026-07-14 JST951 SYD → SYD Jul 14, 20:25 UTCJul 15, 03:30 UTC7h 4m
2026-07-14 JST825 BNE → SYD Jul 14, 10:50 UTCJul 14, 12:05 UTC1h 15m
2026-07-14 JST822 SYD → BNE Jul 14, 08:40 UTCJul 14, 09:50 UTC1h 10m
2026-07-14 JST417 - Jul 14, 06:20 UTCJul 14, 07:20 UTC1h 0m
2026-07-14 JST412 SYD → OOL Jul 14, 04:20 UTCJul 14, 05:25 UTC1h 5m
2026-07-13 JST950 SYD → SYD Jul 13, 20:35 UTCJul 14, 02:55 UTC6h 20m
2026-07-13 JST987 PER → SYD Jul 13, 08:20 UTCJul 13, 12:15 UTC3h 55m
2026-07-13 JST986 SYD → PER Jul 13, 02:20 UTCJul 13, 06:50 UTC4h 30m
2026-07-12 JST508 MEL → SYD Jul 12, 23:45 UTCJul 13, 00:40 UTC55m
2026-07-12 JST505 SYD → MEL Jul 12, 21:10 UTCJul 12, 22:35 UTC1h 25m

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

Mode-S 7C4A45 frequently asked

What is Mode-S code 7C4A45?
7C4A45 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OYF.
Where is Mode-S 7C4A45 registered?
Mode-S code 7C4A45 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4A45 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C4A45, octal 37045105, decimal 8,145,477.
What flights does 7C4A45 operate?
Mode-S 7C4A45 has broadcast 20 distinct callsigns, including JST203, JST204, JST987, JST039, JST986.