sensors Mode-S transponder

7C6DD8

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-VZE · BOEING 737-800 · operated by QANTAS AIRWAYS LIMITED

Hex
7C6DD8
Octal
37066730
Decimal
8,154,584
Country
AU
Tail
VH-VZE
Type
B738
Broadcasting now · callsign QFA693 · 34,000 ft
Flights observed
277
Distinct callsigns
20
Country
AU
Last broadcast
2h ago

Current position

7C6DD8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7C6DD8 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
QFA857 - 5 2026-07-13
QFA651 Qantas 5 2026-04-26
QFA623 Qantas 5 2026-06-10
QFA137 - 5 2026-07-11
QFA136 - 5 2026-07-11
QFA943 Qantas 4 2026-06-14
QFA942 Qantas 4 2026-05-26
QFA856 - 4 2026-07-13
QFA849 - 4 2026-06-17
QFA848 - 4 2026-06-17
QFA824 Qantas 4 2026-05-29
QFA165 Qantas 4 2026-06-06
QFA889 Qantas 3 2026-05-26
QFA767 Qantas 3 2026-04-15
QFA738 Qantas 3 2026-05-06
QFA733 Qantas 3 2026-05-05
QFA633 Qantas 3 2026-06-07
QFA622 Qantas 3 2026-06-10
QFA610 Qantas 3 2026-05-31
QFA605 - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 QFA764 PER → MEL Jul 14, 02:50 UTCJul 14, 06:10 UTC3h 20m
2026-07-14 QFA1087 - Jul 14, 00:55 UTCJul 14, 01:40 UTC45m
2026-07-13 QFA1086 - Jul 13, 21:20 UTCJul 13, 21:50 UTC30m
2026-07-13 QFA857 - Jul 13, 10:20 UTCJul 13, 14:40 UTC4h 20m
2026-07-13 QFA856 - Jul 13, 05:45 UTCJul 13, 09:10 UTC3h 25m
2026-07-13 QFA765 MEL → PER Jul 13, 00:35 UTCJul 13, 04:30 UTC3h 55m
2026-07-12 QFA415 SYD → MEL Jul 12, 22:00 UTCJul 12, 23:20 UTC1h 20m
2026-07-12 QFA843 - Jul 12, 19:35 UTCJul 12, 20:25 UTC50m
2026-07-12 QFA842 - Jul 12, 11:25 UTCJul 12, 12:01 UTC35m
2026-07-11 QFA102 - Jul 11, 23:25 UTCJul 12, 09:10 UTC9h 45m
2026-07-11 QFA138 - Jul 11, 20:30 UTCJul 11, 21:15 UTC45m
2026-07-11 QFA138 - Jul 11, 18:15 UTCJul 11, 18:25 UTC10m
2026-07-11 QFA139 - Jul 11, 11:40 UTCJul 11, 12:00 UTC20m
2026-07-11 QFA139 - Jul 11, 09:20 UTCJul 11, 09:50 UTC30m
2026-07-11 QFA136 - Jul 11, 06:50 UTCJul 11, 07:35 UTC45m
2026-07-11 QFA136 - Jul 11, 04:35 UTCJul 11, 04:45 UTC10m
2026-07-11 QFA137 - Jul 11, 00:40 UTCJul 11, 03:20 UTC2h 40m
2026-07-10 QFA925 SYD → SYD Jul 10, 04:40 UTCJul 10, 11:20 UTC6h 40m
2026-07-10 QFA442 MEL → SYD Jul 10, 02:10 UTCJul 10, 03:15 UTC1h 5m
2026-07-09 QFA423 SYD → MEL Jul 9, 23:00 UTCJul 10, 00:05 UTC1h 5m
2026-07-09 QFA501 BNE → SYD Jul 9, 20:20 UTCJul 9, 21:50 UTC1h 30m
2026-07-09 QFA186 - Jul 9, 05:10 UTCJul 9, 08:35 UTC3h 25m
2026-07-09 QFA185 - Jul 9, 00:30 UTCJul 9, 03:30 UTC3h 0m
2026-07-08 QFA120 - Jul 8, 18:25 UTCJul 8, 22:00 UTC3h 35m
2026-07-08 QFA147 SYD → AKL Jul 8, 08:20 UTCJul 8, 10:55 UTC2h 35m
2026-07-08 QFA92 - Jul 8, 04:25 UTCJul 8, 05:55 UTC1h 30m
2026-07-07 QFA91 - Jul 7, 23:20 UTCJul 8, 00:15 UTC55m
2026-07-07 QFA189 SYD → SYD Jul 7, 00:15 UTCJul 7, 10:50 UTC10h 35m
2026-07-06 QFA597 - Jul 6, 08:15 UTCJul 6, 09:30 UTC1h 15m
2026-07-06 QFA596 - Jul 6, 06:15 UTCJul 6, 07:15 UTC1h 0m
2026-07-06 QFA446 MEL → SYD Jul 6, 03:55 UTCJul 6, 05:00 UTC1h 5m
2026-07-06 QFA760 - Jul 6, 01:05 UTCJul 6, 02:25 UTC1h 20m
2026-07-05 QFA760 - Jul 5, 23:05 UTCJul 5, 23:30 UTC25m
2026-07-05 QFA857 - Jul 5, 10:20 UTCJul 5, 14:25 UTC4h 5m
2026-07-05 QFA856 - Jul 5, 05:35 UTCJul 5, 09:10 UTC3h 35m
2026-07-05 QFA765 MEL → PER Jul 5, 00:20 UTCJul 5, 04:00 UTC3h 40m
2026-07-04 QFA605 BNE → MEL Jul 4, 20:10 UTCJul 4, 22:10 UTC2h 0m
2026-07-04 QFA184 BNE → BNE Jul 4, 01:55 UTCJul 4, 07:20 UTC5h 25m
2026-07-03 QFA197 BNE → BNE Jul 3, 11:45 UTCJul 4, 00:15 UTC12h 30m
2026-07-03 QFA203 - Jul 3, 00:00 UTCJul 3, 08:20 UTC8h 20m
2026-07-02 QFA744 ADL → SYD Jul 2, 07:50 UTCJul 2, 09:15 UTC1h 25m
2026-07-02 QFA739 SYD → ADL Jul 2, 04:55 UTCJul 2, 06:55 UTC2h 0m
2026-07-02 QFA442 MEL → SYD Jul 2, 02:20 UTCJul 2, 03:20 UTC1h 0m
2026-07-01 QFA609 BNE → MEL Jul 1, 21:40 UTCJul 1, 23:55 UTC2h 15m
2026-07-01 QFA827 - Jul 1, 18:35 UTCJul 1, 19:05 UTC30m
2026-07-01 QFA826 - Jul 1, 10:50 UTCJul 1, 11:20 UTC30m
2026-07-01 QFA540 SYD → BNE Jul 1, 06:50 UTCJul 1, 07:55 UTC1h 5m
2026-07-01 QFA450 MEL → SYD Jul 1, 04:45 UTCJul 1, 05:50 UTC1h 5m
2026-07-01 QFA439 - Jul 1, 02:20 UTCJul 1, 03:35 UTC1h 15m
2026-06-30 QFA511 BNE → SYD Jun 30, 23:05 UTCJul 1, 00:20 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-VZE page for operator, model, and routing details .

Mode-S 7C6DD8 frequently asked

What is Mode-S code 7C6DD8?
7C6DD8 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZE.
Where is Mode-S 7C6DD8 registered?
Mode-S code 7C6DD8 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DD8 broadcasting right now?
Yes. Mode-S 7C6DD8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DD8, octal 37066730, decimal 8,154,584.
What flights does 7C6DD8 operate?
Mode-S 7C6DD8 has broadcast 20 distinct callsigns, including QFA857, QFA651, QFA623, QFA137, QFA136.