Apparatus

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sensors Mode-S transponder

7C4920

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-OQA · AIRBUS A-380-800 · operated by QANTAS AIRWAYS LIMITED

Hex
7C4920
Octal
37044440
Decimal
8,145,184
Country
AU
Tail
VH-OQA
Type
A388
No current signal · last broadcast 8h ago
Flights observed
68
Distinct callsigns
10
Country
AU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 7C4920.

Country allocation

The ICAO 24-bit address 7C4920 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 10 distinct

Callsign Airline Flights Last seen
QFA2 Qantas 14 2026-05-17
QFA1 Qantas 14 2026-04-29
QFA8 Qantas 10 2026-05-26
QFA12 Qantas 9 2026-05-29
QFA7 Qantas 7 2026-05-25
QFA11 Qantas 7 2026-05-27
QFA82 Qantas 2 2026-05-10
QFA64 Qantas 2 2026-05-07
QFA63 Qantas 2 2026-05-07
QFA81 Qantas 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 QFA12 LAX → SYD May 29, 07:05 UTCMay 29, 21:10 UTC14h 5m
2026-05-27 QFA11 SYD → LAX May 27, 08:15 UTCMay 27, 21:00 UTC12h 45m
2026-05-26 QFA8 DFW → SYD May 26, 05:34 UTCMay 26, 21:59 UTC16h 25m
2026-05-25 QFA7 SYD → DFW May 25, 03:50 UTCMay 25, 18:00 UTC14h 10m
2026-05-24 QFA8 DFW → SYD May 24, 04:40 UTCMay 24, 21:15 UTC16h 35m
2026-05-23 QFA7 SYD → DFW May 23, 02:20 UTCMay 23, 16:45 UTC14h 24m
2026-05-22 QFA12 LAX → SYD May 22, 07:15 UTCMay 22, 21:25 UTC14h 10m
2026-05-20 QFA11 SYD → LAX May 20, 08:15 UTCMay 20, 20:50 UTC12h 35m
2026-05-19 QFA8 DFW → SYD May 19, 04:20 UTCMay 19, 20:45 UTC16h 25m
2026-05-18 QFA7 SYD → DFW May 18, 04:25 UTCMay 18, 19:15 UTC14h 49m
2026-05-17 QFA2 LHR → SIN May 17, 18:20 UTCMay 17, 19:05 UTC45m
2026-05-17 QFA81 SYD → SIN May 17, 01:00 UTCMay 17, 01:55 UTC55m
2026-05-16 QFA8 DFW → SYD May 16, 04:25 UTCMay 16, 21:00 UTC16h 35m
2026-05-15 QFA7 SYD → DFW May 15, 02:25 UTCMay 15, 16:50 UTC14h 24m
2026-05-14 QFA8 DFW → SYD May 14, 04:25 UTCMay 14, 21:00 UTC16h 35m
2026-05-13 QFA7 SYD → DFW May 13, 02:45 UTCMay 13, 17:00 UTC14h 15m
2026-05-12 QFA12 LAX → SYD May 12, 07:30 UTCMay 12, 21:55 UTC14h 25m
2026-05-11 QFA11 SYD → LAX May 11, 08:15 UTCMay 11, 21:05 UTC12h 50m
2026-05-10 QFA82 SIN → SYD May 10, 19:24 UTCMay 10, 20:30 UTC1h 5m
2026-05-10 QFA82 SIN → SYD May 10, 00:55 UTCMay 10, 20:30 UTC19h 35m
2026-05-09 QFA12 LAX → SYD May 9, 19:49 UTCMay 9, 21:25 UTC1h 35m
2026-05-09 QFA12 LAX → SYD May 9, 06:55 UTCMay 9, 07:20 UTC25m
2026-05-08 QFA11 SYD → LAX May 8, 08:19 UTCMay 8, 21:30 UTC13h 10m
2026-05-07 QFA64 JNB → SYD May 7, 18:00 UTCMay 8, 05:14 UTC11h 14m
2026-05-07 QFA63 SYD → JNB May 7, 01:10 UTCMay 7, 14:50 UTC13h 40m
2026-05-06 QFA12 LAX → SYD May 6, 07:01 UTCMay 6, 21:25 UTC14h 24m
2026-05-05 QFA11 SYD → LAX May 5, 08:20 UTCMay 5, 21:05 UTC12h 45m
2026-05-04 QFA64 JNB → SYD May 4, 18:35 UTCMay 5, 05:40 UTC11h 5m
2026-05-04 QFA63 SYD → JNB May 4, 02:04 UTCMay 4, 15:55 UTC13h 50m
2026-05-03 QFA8 DFW → SYD May 3, 04:20 UTCMay 3, 21:05 UTC16h 45m
2026-05-02 QFA7 SYD → DFW May 2, 03:15 UTCMay 2, 17:20 UTC14h 5m
2026-05-01 QFA2 LHR → SIN May 1, 13:25 UTCMay 1, 19:05 UTC5h 40m
2026-04-30 QFA2 LHR → SIN Apr 30, 20:25 UTCMay 1, 09:05 UTC12h 40m
2026-04-29 QFA1 SYD → SIN Apr 29, 16:00 UTCApr 30, 05:35 UTC13h 34m
2026-04-29 QFA1 SYD → SIN Apr 29, 05:05 UTCApr 29, 05:40 UTC35m
2026-04-27 QFA2 LHR → SIN Apr 27, 13:15 UTCApr 27, 19:15 UTC6h 0m
2026-04-26 QFA2 LHR → SIN Apr 26, 20:15 UTCApr 27, 08:50 UTC12h 35m
2026-04-25 QFA1 SYD → SIN Apr 25, 16:10 UTCApr 26, 05:35 UTC13h 25m
2026-04-25 QFA1 SYD → SIN Apr 25, 12:40 UTCApr 25, 12:55 UTC15m
2026-04-25 QFA1 SYD → SIN Apr 25, 05:15 UTCApr 25, 05:45 UTC30m
2026-04-24 QFA2 LHR → SIN Apr 24, 13:15 UTCApr 24, 19:05 UTC5h 50m
2026-04-23 QFA2 LHR → SIN Apr 23, 20:05 UTCApr 24, 08:40 UTC12h 35m
2026-04-22 QFA1 SYD → SIN Apr 22, 16:15 UTCApr 23, 05:15 UTC13h 0m
2026-04-22 QFA1 SYD → SIN Apr 22, 05:05 UTCApr 22, 05:40 UTC35m
2026-04-20 QFA12 LAX → SYD Apr 20, 07:15 UTCApr 20, 21:40 UTC14h 25m
2026-04-19 QFA11 SYD → LAX Apr 19, 10:20 UTCApr 19, 23:10 UTC12h 50m
2026-04-18 QFA2 LHR → SIN Apr 18, 18:20 UTCApr 18, 19:05 UTC45m
2026-04-18 QFA2 LHR → SIN Apr 18, 08:05 UTCApr 18, 08:50 UTC45m
2026-04-18 QFA2 LHR → SIN Apr 18, 05:25 UTCApr 18, 05:45 UTC20m
2026-04-18 QFA2 LHR → SIN Apr 18, 04:05 UTCApr 18, 05:20 UTC1h 15m

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

Mode-S 7C4920 frequently asked

What is Mode-S code 7C4920?
7C4920 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-OQA.
Where is Mode-S 7C4920 registered?
Mode-S code 7C4920 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C4920 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 7C4920, octal 37044440, decimal 8,145,184.
What flights does 7C4920 operate?
Mode-S 7C4920 has broadcast 10 distinct callsigns, including QFA2, QFA1, QFA8, QFA12, QFA7.