sensors Mode-S transponder
7C4929
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to VH-OQJ · AIRBUS A-380-800 · operated by QANTAS AIRWAYS LIMITED
- Hex
- 7C4929
- Octal
- 37044451
- Decimal
- 8,145,193
- Country
- AU
- Tail
- VH-OQJ
- Type
- A388
- Flights observed
- 73
- Distinct callsigns
- 10
- Country
- AU
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 7C4929 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
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QFA2 | LHR → SIN | May 29, 20:30 UTC | May 30, 00:15 UTC | 3h 45m |
| 2026-05-28 | QFA1 | SYD → SIN | May 28, 16:10 UTC | May 29, 06:05 UTC | 13h 55m |
| 2026-05-28 | QFA1 | SYD → SIN | May 28, 05:10 UTC | May 28, 05:55 UTC | 45m |
| 2026-05-27 | QFA12 | LAX → SYD | May 27, 06:55 UTC | May 27, 21:00 UTC | 14h 5m |
| 2026-05-26 | QFA11 | SYD → LAX | May 26, 08:15 UTC | May 26, 20:50 UTC | 12h 35m |
| 2026-05-25 | QFA64 | JNB → SYD | May 25, 17:05 UTC | May 26, 05:00 UTC | 11h 54m |
| 2026-05-25 | QFA63 | SYD → JNB | May 25, 01:55 UTC | May 25, 14:05 UTC | 12h 10m |
| 2026-05-24 | QFA12 | LAX → SYD | May 24, 06:55 UTC | May 24, 21:30 UTC | 14h 35m |
| 2026-05-23 | QFA93 | MEL → LAX | May 23, 00:00 UTC | May 23, 13:25 UTC | 13h 24m |
| 2026-05-22 | QFA94 | LAX → MEL | May 22, 05:25 UTC | May 22, 20:25 UTC | 15h 0m |
| 2026-05-21 | QFA11 | SYD → LAX | May 21, 08:10 UTC | May 21, 21:05 UTC | 12h 55m |
| 2026-05-21 | QFA64 | JNB → SYD | May 21, 02:55 UTC | May 21, 04:40 UTC | 1h 45m |
| 2026-05-20 | QFA64 | JNB → SYD | May 20, 17:10 UTC | May 20, 17:25 UTC | 15m |
| 2026-05-19 | QFA63 | SYD → JNB | May 19, 23:55 UTC | May 20, 13:25 UTC | 13h 31m |
| 2026-05-18 | QFA8 | DFW → SYD | May 18, 04:55 UTC | May 18, 21:20 UTC | 16h 24m |
| 2026-05-17 | QFA7 | SYD → DFW | May 17, 02:20 UTC | May 17, 17:10 UTC | 14h 50m |
| 2026-05-16 | QFA12 | LAX → SYD | May 16, 07:11 UTC | May 16, 21:30 UTC | 14h 20m |
| 2026-05-15 | QFA11 | SYD → LAX | May 15, 08:00 UTC | May 15, 21:20 UTC | 13h 19m |
| 2026-05-14 | QFA64 | JNB → SYD | May 14, 17:15 UTC | May 15, 04:30 UTC | 11h 15m |
| 2026-05-14 | QFA63 | SYD → JNB | May 14, 00:25 UTC | May 14, 14:15 UTC | 13h 50m |
| 2026-05-13 | QFA12 | LAX → SYD | May 13, 06:55 UTC | May 13, 21:15 UTC | 14h 20m |
| 2026-05-12 | QFA11 | SYD → LAX | May 12, 08:50 UTC | May 12, 21:40 UTC | 12h 50m |
| 2026-05-11 | QFA64 | JNB → SYD | May 11, 17:40 UTC | May 12, 05:30 UTC | 11h 50m |
| 2026-05-11 | QFA63 | SYD → JNB | May 11, 00:25 UTC | May 11, 13:55 UTC | 13h 30m |
| 2026-05-10 | QFA2 | LHR → SIN | May 10, 18:20 UTC | May 10, 19:05 UTC | 45m |
| 2026-05-09 | QFA2 | LHR → SIN | May 9, 20:20 UTC | May 10, 08:20 UTC | 12h 0m |
| 2026-05-08 | QFA1 | SYD → SIN | May 8, 16:15 UTC | May 9, 05:45 UTC | 13h 30m |
| 2026-05-08 | QFA1 | SYD → SIN | May 8, 05:24 UTC | May 8, 05:59 UTC | 35m |
| 2026-05-07 | QFA12 | LAX → SYD | May 7, 06:55 UTC | May 7, 21:25 UTC | 14h 30m |
| 2026-05-06 | QFA11 | SYD → LAX | May 6, 08:40 UTC | May 6, 21:45 UTC | 13h 4m |
| 2026-05-05 | QFA8 | DFW → SYD | May 5, 04:40 UTC | May 5, 21:15 UTC | 16h 35m |
| 2026-05-04 | QFA7 | SYD → DFW | May 4, 03:24 UTC | May 4, 17:45 UTC | 14h 20m |
| 2026-05-03 | QFA2 | LHR → SIN | May 3, 18:25 UTC | May 3, 19:05 UTC | 40m |
| 2026-05-02 | QFA2 | LHR → SIN | May 2, 20:10 UTC | May 3, 08:30 UTC | 12h 19m |
| 2026-05-01 | QFA1 | SYD → SIN | May 1, 16:00 UTC | May 2, 05:20 UTC | 13h 20m |
| 2026-05-01 | QFA1 | SYD → SIN | May 1, 05:00 UTC | May 1, 05:35 UTC | 35m |
| 2026-04-30 | QFA2 | LHR → SIN | Apr 30, 13:30 UTC | Apr 30, 19:05 UTC | 5h 35m |
| 2026-04-29 | QFA2 | LHR → SIN | Apr 29, 20:10 UTC | Apr 30, 08:30 UTC | 12h 19m |
| 2026-04-28 | QFA1 | SYD → SIN | Apr 28, 16:10 UTC | Apr 29, 06:00 UTC | 13h 50m |
| 2026-04-28 | QFA1 | SYD → SIN | Apr 28, 05:05 UTC | Apr 28, 05:40 UTC | 35m |
| 2026-04-27 | QFA8 | DFW → SYD | Apr 27, 04:30 UTC | Apr 27, 21:15 UTC | 16h 45m |
| 2026-04-26 | QFA7 | SYD → DFW | Apr 26, 02:25 UTC | Apr 26, 17:05 UTC | 14h 40m |
| 2026-04-25 | QFA12 | LAX → SYD | Apr 25, 07:25 UTC | Apr 25, 21:50 UTC | 14h 25m |
| 2026-04-24 | QFA11 | SYD → LAX | Apr 24, 08:25 UTC | Apr 24, 21:30 UTC | 13h 5m |
| 2026-04-24 | QFA64 | JNB → SYD | Apr 24, 02:30 UTC | Apr 24, 04:15 UTC | 1h 45m |
| 2026-04-23 | QFA64 | JNB → SYD | Apr 23, 17:15 UTC | Apr 23, 17:30 UTC | 15m |
| 2026-04-23 | QFA63 | SYD → JNB | Apr 23, 00:10 UTC | Apr 23, 14:05 UTC | 13h 55m |
| 2026-04-22 | QFA8 | DFW → SYD | Apr 22, 04:25 UTC | Apr 22, 20:40 UTC | 16h 15m |
| 2026-04-21 | QFA7 | SYD → DFW | Apr 21, 03:10 UTC | Apr 21, 18:00 UTC | 14h 50m |
| 2026-04-20 | QFA8 | DFW → SYD | Apr 20, 04:35 UTC | Apr 20, 21:00 UTC | 16h 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-OQJ page for operator, model, and routing details .