Apparatus

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sensors Mode-S transponder

7C68CB

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-UZH · EMBRAER ERJ-190-100 · operated by ALLIANCE AIRLINES PTY LIMITED

Hex
7C68CB
Octal
37064313
Decimal
8,153,291
Country
AU
Tail
VH-UZH
Type
E190
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
303
Distinct callsigns
20
Country
AU
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S 7C68CB.

Country allocation

The ICAO 24-bit address 7C68CB 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
QLK353 - 17 2026-07-21
QLK360 - 15 2026-07-16
QLK359 - 15 2026-07-16
QLK357 - 14 2026-07-26
QLK354 - 10 2026-07-25
QLK1800 - 8 2026-07-13
QLK1920 - 7 2026-07-07
QLK1833 - 7 2026-07-23
QLK1832 - 6 2026-07-23
QLK1805 - 6 2026-05-27
QLK358 - 5 2026-07-12
QLK1992 - 5 2026-04-15
QLK1828 - 5 2026-07-23
QLK1809 - 5 2026-07-13
QLK1988 - 4 2026-07-21
QLK1987 - 4 2026-07-21
QLK1950 - 4 2026-07-13
QLK1949 - 4 2026-07-13
QLK1946 - 4 2026-07-12
QLK1945 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 QLK1926 BNE → BNE Jul 26, 19:35 UTCJul 26, 22:35 UTC3h 0m
2026-07-26 QLK357 BNE → BNE Jul 26, 02:05 UTCJul 26, 08:45 UTC6h 41m
2026-07-25 QLK354 BNE → BNE Jul 25, 00:30 UTCJul 25, 06:40 UTC6h 10m
2026-07-24 QLK357 BNE → BNE Jul 24, 01:55 UTCJul 24, 08:40 UTC6h 45m
2026-07-23 QLK1833 - Jul 23, 20:15 UTCJul 23, 21:25 UTC1h 10m
2026-07-23 QLK1832 - Jul 23, 09:55 UTCJul 23, 11:10 UTC1h 15m
2026-07-23 QLK1829 - Jul 23, 07:25 UTCJul 23, 08:35 UTC1h 10m
2026-07-23 QLK1828 - Jul 23, 05:05 UTCJul 23, 06:20 UTC1h 15m
2026-07-23 QLK1844 BNE → BNE Jul 23, 01:00 UTCJul 23, 03:35 UTC2h 35m
2026-07-22 QLK1833 - Jul 22, 21:05 UTCJul 22, 22:35 UTC1h 30m
2026-07-22 QLK1832 - Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-22 QLK1828 - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-22 QLK1823 - Jul 22, 01:05 UTCJul 22, 02:15 UTC1h 10m
2026-07-21 QLK1822 - Jul 21, 22:50 UTCJul 22, 00:05 UTC1h 15m
2026-07-21 QLK1988 - Jul 21, 20:40 UTCJul 21, 21:40 UTC1h 0m
2026-07-21 QLK1987 - Jul 21, 09:55 UTCJul 21, 10:55 UTC1h 0m
2026-07-21 QLK353 BNE → BNE Jul 21, 00:55 UTCJul 21, 07:25 UTC6h 30m
2026-07-20 QLK1956 - Jul 20, 09:05 UTCJul 20, 10:25 UTC1h 20m
2026-07-20 QLK1955 - Jul 20, 06:35 UTCJul 20, 08:05 UTC1h 30m
2026-07-19 QLK353 BNE → BNE Jul 19, 00:40 UTCJul 19, 07:05 UTC6h 25m
2026-07-18 QLK1827 - Jul 18, 05:15 UTCJul 18, 06:30 UTC1h 15m
2026-07-18 QLK1826 - Jul 18, 03:00 UTCJul 18, 04:15 UTC1h 15m
2026-07-18 QLK1823 - Jul 18, 00:39 UTCJul 18, 02:00 UTC1h 20m
2026-07-17 QLK1822 - Jul 17, 22:20 UTCJul 17, 23:35 UTC1h 15m
2026-07-17 QLK353 BNE → BNE Jul 17, 00:40 UTCJul 17, 07:05 UTC6h 25m
2026-07-16 QLK1890 BNE → BNE Jul 16, 10:35 UTCJul 16, 22:00 UTC11h 25m
2026-07-16 QLK360 - Jul 16, 08:05 UTCJul 16, 08:45 UTC40m
2026-07-16 QLK359 - Jul 16, 03:10 UTCJul 16, 03:55 UTC45m
2026-07-15 QLK1840 BNE → BNE Jul 15, 21:00 UTCJul 16, 00:00 UTC3h 0m
2026-07-15 QLK353 BNE → BNE Jul 15, 01:10 UTCJul 15, 07:30 UTC6h 20m
2026-07-14 QLK360 - Jul 14, 08:05 UTCJul 14, 08:45 UTC40m
2026-07-14 QLK360 - Jul 14, 06:20 UTCJul 14, 06:30 UTC10m
2026-07-14 QLK359 - Jul 14, 03:25 UTCJul 14, 04:00 UTC35m
2026-07-13 QLK1800 ADL → BNE Jul 13, 21:15 UTCJul 13, 23:30 UTC2h 15m
2026-07-13 QLK1809 BNE → ADL Jul 13, 07:10 UTCJul 13, 09:40 UTC2h 30m
2026-07-13 QLK1950 - Jul 13, 04:25 UTCJul 13, 05:50 UTC1h 25m
2026-07-13 QLK1949 - Jul 13, 01:45 UTCJul 13, 03:15 UTC1h 30m
2026-07-12 QLK1946 - Jul 12, 23:05 UTCJul 13, 00:30 UTC1h 25m
2026-07-12 QLK1945 - Jul 12, 20:35 UTCJul 12, 22:05 UTC1h 30m
2026-07-12 QLK358 BNE → BNE Jul 12, 01:40 UTCJul 12, 08:35 UTC6h 55m
2026-07-11 QLK360 - Jul 11, 07:20 UTCJul 11, 08:10 UTC50m
2026-07-11 QLK359 - Jul 11, 02:45 UTCJul 11, 03:15 UTC30m
2026-07-10 QLK360 - Jul 10, 07:30 UTCJul 10, 08:15 UTC45m
2026-07-10 QLK360 - Jul 10, 05:55 UTCJul 10, 06:05 UTC10m
2026-07-10 QLK359 - Jul 10, 03:00 UTCJul 10, 03:35 UTC35m
2026-07-09 QLK1800 ADL → BNE Jul 9, 21:10 UTCJul 9, 23:20 UTC2h 10m
2026-07-09 QLK1857 ADL → ADL Jul 9, 04:45 UTCJul 9, 09:55 UTC5h 10m
2026-07-09 QLK1909 - Jul 9, 01:30 UTCJul 9, 03:40 UTC2h 10m
2026-07-08 QLK1997 - Jul 8, 23:10 UTCJul 9, 00:25 UTC1h 15m
2026-07-08 QLK1996 - Jul 8, 20:30 UTCJul 8, 22:00 UTC1h 30m

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

Mode-S 7C68CB frequently asked

What is Mode-S code 7C68CB?
7C68CB is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-UZH.
Where is Mode-S 7C68CB registered?
Mode-S code 7C68CB is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C68CB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C68CB, octal 37064313, decimal 8,153,291.
What flights does 7C68CB operate?
Mode-S 7C68CB has broadcast 20 distinct callsigns, including QLK353, QLK360, QLK359, QLK357, QLK354.