Apparatus

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sensors Mode-S transponder

7C045C

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-A5A · AIRBUS A-320neo · operated by JETSTAR AIRWAYS PTY LIMITED

Hex
7C045C
Octal
37002134
Decimal
8,127,580
Country
AU
Tail
VH-A5A
Type
A20N
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
452
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S 7C045C.

Country allocation

The ICAO 24-bit address 7C045C 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
JST224 - 21 2026-07-03
JST221 - 13 2026-07-02
JST220 - 12 2026-07-03
JST219 - 12 2026-07-03
JST669 Jetstar Airways 8 2026-06-01
JST223 - 8 2026-06-30
JST193 - 8 2026-07-17
JST672 - 7 2026-07-05
JST189 - 7 2026-07-10
JST167 - 7 2026-07-12
JST834 Jetstar Airways 6 2026-06-01
JST165 - 6 2026-06-17
JST983 - 5 2026-07-16
JST982 - 5 2026-07-16
JST671 - 5 2026-07-05
JST631 Jetstar Airways 5 2026-07-20
JST630 Jetstar Airways 5 2026-07-20
JST575 - 5 2026-06-19
JST507 Jetstar Airways 5 2026-07-26
JST500 Jetstar Airways 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JST507 SYD → MEL Jul 26, 22:35 UTCJul 26, 23:00 UTC25m
2026-07-26 JST500 MEL → SYD Jul 26, 20:15 UTCJul 26, 21:20 UTC1h 5m
2026-07-26 JST713 MEL → HBA Jul 26, 10:05 UTCJul 26, 12:50 UTC2h 45m
2026-07-26 JST885 HVB → MEL Jul 26, 06:25 UTCJul 26, 08:55 UTC2h 31m
2026-07-26 JST884 BNE → MKY Jul 26, 03:15 UTCJul 26, 05:10 UTC1h 55m
2026-07-25 JST563 BNE → MEL Jul 25, 23:05 UTCJul 26, 01:15 UTC2h 10m
2026-07-25 JST560 MEL → BNE Jul 25, 20:15 UTCJul 25, 22:00 UTC1h 45m
2026-07-25 JST475 NTL → MEL Jul 25, 08:00 UTCJul 25, 09:25 UTC1h 25m
2026-07-25 JST476 MEL → NTL Jul 25, 06:00 UTCJul 25, 07:10 UTC1h 10m
2026-07-25 JST535 SYD → MEL Jul 25, 03:45 UTCJul 25, 04:55 UTC1h 10m
2026-07-25 JST534 MEL → SYD Jul 25, 01:50 UTCJul 25, 02:45 UTC55m
2026-07-22 JST705 MEL → HBA Jul 22, 03:35 UTCJul 22, 04:10 UTC35m
2026-07-22 JST431 OOL → MEL Jul 22, 00:05 UTCJul 22, 02:15 UTC2h 10m
2026-07-21 JST430 MEL → OOL Jul 21, 21:25 UTCJul 21, 23:05 UTC1h 40m
2026-07-21 JST445 OOL → MEL Jul 21, 07:25 UTCJul 21, 09:30 UTC2h 5m
2026-07-20 JST420 SYD → OOL Jul 20, 12:10 UTCJul 20, 13:05 UTC55m
2026-07-20 JST419 OOL → SYD Jul 20, 08:50 UTCJul 20, 10:00 UTC1h 10m
2026-07-20 JST630 AVV → OOL Jul 20, 06:15 UTCJul 20, 07:55 UTC1h 40m
2026-07-20 JST631 OOL → AVV Jul 20, 03:10 UTCJul 20, 05:15 UTC2h 5m
2026-07-19 JST892 - Jul 19, 20:50 UTCJul 20, 02:05 UTC5h 15m
2026-07-19 JST630 AVV → OOL Jul 19, 07:05 UTCJul 19, 08:50 UTC1h 45m
2026-07-19 JST631 OOL → AVV Jul 19, 03:55 UTCJul 19, 06:00 UTC2h 5m
2026-07-18 JST892 - Jul 18, 21:00 UTCJul 19, 02:30 UTC5h 30m
2026-07-18 JST894 - Jul 18, 06:20 UTCJul 18, 11:45 UTC5h 25m
2026-07-18 JST194 - Jul 18, 00:35 UTCJul 18, 03:40 UTC3h 6m
2026-07-17 JST193 - Jul 17, 23:05 UTCJul 17, 23:14 UTC10m
2026-07-17 JST193 - Jul 17, 20:25 UTCJul 17, 21:05 UTC40m
2026-07-17 JST420 - Jul 17, 11:04 UTCJul 17, 12:10 UTC1h 5m
2026-07-17 JST419 - Jul 17, 08:54 UTCJul 17, 10:00 UTC1h 5m
2026-07-17 JST630 - Jul 17, 06:10 UTCJul 17, 08:00 UTC1h 50m
2026-07-17 JST631 - Jul 17, 03:14 UTCJul 17, 05:04 UTC1h 50m
2026-07-17 JST438 - Jul 17, 00:25 UTCJul 17, 02:10 UTC1h 45m
2026-07-16 JST435 - Jul 16, 21:25 UTCJul 16, 23:15 UTC1h 50m
2026-07-16 JST983 - Jul 16, 16:00 UTCJul 16, 20:05 UTC4h 5m
2026-07-16 JST982 - Jul 16, 09:35 UTCJul 16, 14:25 UTC4h 50m
2026-07-16 JST414 SYD → OOL Jul 16, 05:40 UTCJul 16, 06:45 UTC1h 5m
2026-07-16 JST413 - Jul 16, 03:10 UTCJul 16, 04:15 UTC1h 5m
2026-07-16 JST438 - Jul 16, 00:20 UTCJul 16, 02:15 UTC1h 55m
2026-07-15 JST435 - Jul 15, 21:20 UTCJul 15, 23:10 UTC1h 50m
2026-07-15 JST416 - Jul 15, 07:15 UTCJul 15, 08:20 UTC1h 5m
2026-07-15 JST415 - Jul 15, 04:45 UTCJul 15, 05:50 UTC1h 5m
2026-07-15 JST410 - Jul 15, 02:30 UTCJul 15, 03:30 UTC1h 0m
2026-07-15 JST407 - Jul 15, 00:25 UTCJul 15, 01:30 UTC1h 5m
2026-07-14 JST404 - Jul 14, 22:30 UTCJul 14, 23:35 UTC1h 4m
2026-07-14 JST401 - Jul 14, 20:15 UTCJul 14, 21:25 UTC1h 10m
2026-07-14 JST414 - Jul 14, 06:10 UTCJul 14, 07:10 UTC1h 0m
2026-07-14 JST413 - Jul 14, 04:00 UTCJul 14, 05:05 UTC1h 5m
2026-07-14 JST438 - Jul 14, 00:35 UTCJul 14, 02:15 UTC1h 40m
2026-07-13 JST435 - Jul 13, 21:25 UTCJul 13, 23:30 UTC2h 5m
2026-07-13 JST983 - Jul 13, 16:05 UTCJul 13, 20:00 UTC3h 55m

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-A5A page for operator, model, and routing details .

Mode-S 7C045C frequently asked

What is Mode-S code 7C045C?
7C045C is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-A5A.
Where is Mode-S 7C045C registered?
Mode-S code 7C045C is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C045C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C045C, octal 37002134, decimal 8,127,580.
What flights does 7C045C operate?
Mode-S 7C045C has broadcast 20 distinct callsigns, including JST224, JST221, JST220, JST219, JST669.