Apparatus

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sensors Mode-S transponder

7C0402

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-A2S · EMBRAER ERJ-190-100

Hex
7C0402
Octal
37002002
Decimal
8,127,490
Country
AU
Tail
VH-A2S
Type
E190
No current signal · last broadcast 3d ago
Flights observed
46
Distinct callsigns
20
Country
AU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7C0402.

Country allocation

The ICAO 24-bit address 7C0402 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
UTY4823 Alliance Airlines 5 2026-05-18
QLK1981 - 3 2026-05-21
UTY712 Alliance Airlines 2 2026-05-27
QLK1982 - 2 2026-05-22
QLK1846 - 2 2026-05-20
UTY9821 - 1 2026-04-16
UTY7241 Alliance Airlines 1 2026-05-24
UTY7240 Alliance Airlines 1 2026-04-26
UTY4824 Alliance Airlines 1 2026-04-21
UTY4821 Alliance Airlines 1 2026-05-20
UTY4730 Alliance Airlines 1 2026-05-25
QLK7881 - 1 2026-04-24
QLK7880 - 1 2026-05-24
QLK1990 - 1 2026-05-25
QLK1988 - 1 2026-04-13
QLK1987 - 1 2026-04-13
QLK1986 - 1 2026-04-30
QLK1985 - 1 2026-04-30
QLK1984 - 1 2026-04-14
QLK1972 - 1 2026-05-14

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-27 UTY712 BNE → CNJ May 27, 02:09 UTCMay 27, 02:44 UTC35m
2026-05-25 UTY4730 BNE → CNJ May 25, 21:40 UTCMay 26, 06:39 UTC9h 0m
2026-05-25 QLK1990 BNE → BNE May 25, 06:15 UTCMay 25, 11:10 UTC4h 55m
2026-05-24 UTY7241 WEI → BNE May 24, 23:00 UTCMay 25, 05:05 UTC6h 5m
2026-05-24 QLK7880 BNE → BNE May 24, 05:05 UTCMay 24, 09:15 UTC4h 10m
2026-05-22 QLK1929 - May 22, 05:20 UTCMay 22, 05:55 UTC35m
2026-05-22 QLK1928 - May 22, 02:55 UTCMay 22, 03:25 UTC30m
2026-05-22 QLK1982 - May 22, 00:20 UTCMay 22, 01:20 UTC1h 0m
2026-05-21 QLK1981 - May 21, 22:25 UTCMay 21, 23:30 UTC1h 5m
2026-05-20 UTY4821 BNE → ASP May 20, 19:35 UTCMay 21, 03:05 UTC7h 30m
2026-05-20 QLK1846 BNE → BNE May 20, 05:20 UTCMay 20, 08:00 UTC2h 40m
2026-05-18 UTY4823 BNE → AYQ May 18, 20:10 UTCMay 19, 04:30 UTC8h 20m
2026-05-18 QLK1845 BNE → BNE May 18, 06:35 UTCMay 18, 10:10 UTC3h 35m
2026-05-17 QLK1808 - May 17, 08:20 UTCMay 17, 10:25 UTC2h 5m
2026-05-17 QLK1807 BNE → ADL May 17, 04:55 UTCMay 17, 07:25 UTC2h 30m
2026-05-14 QLK1828 BNE → BNE May 14, 05:25 UTCMay 14, 08:50 UTC3h 25m
2026-05-14 QLK1972 ABX → BNE May 14, 02:35 UTCMay 14, 04:15 UTC1h 40m
2026-05-14 QLK1971 BNE → ABX May 14, 00:00 UTCMay 14, 01:40 UTC1h 40m
2026-05-13 QLK1954 - May 13, 08:20 UTCMay 13, 09:50 UTC1h 30m
2026-05-13 QLK1953 - May 13, 05:55 UTCMay 13, 07:20 UTC1h 25m
2026-05-13 QLK1825 BNE → BNE May 13, 01:35 UTCMay 13, 04:55 UTC3h 20m
2026-05-11 QLK1982 - May 11, 00:15 UTCMay 11, 01:15 UTC1h 0m
2026-05-10 QLK1981 - May 10, 22:09 UTCMay 10, 23:15 UTC1h 5m
2026-05-09 QLK1874 BNE → BNE May 9, 01:35 UTCMay 9, 07:50 UTC6h 15m
2026-05-07 UTY4823 BNE → AYQ May 7, 20:05 UTCMay 8, 03:44 UTC7h 40m
2026-05-06 UTY4823 BNE → AYQ May 6, 20:15 UTCMay 7, 03:50 UTC7h 35m
2026-05-04 QLK1822 BNE → BNE May 4, 22:20 UTCMay 5, 01:45 UTC3h 25m
2026-05-03 QLK1830 BNE → BNE May 3, 07:30 UTCMay 3, 21:05 UTC13h 35m
2026-04-30 QLK1986 - Apr 30, 09:40 UTCApr 30, 10:45 UTC1h 5m
2026-04-30 QLK1985 - Apr 30, 07:30 UTCApr 30, 08:30 UTC1h 0m
2026-04-30 QLK1826 BNE → BNE Apr 30, 03:10 UTCApr 30, 06:35 UTC3h 25m
2026-04-28 UTY712 BNE → CNJ Apr 28, 23:10 UTCApr 29, 06:25 UTC7h 15m
2026-04-28 QLK1932 BNE → BNE Apr 28, 08:25 UTCApr 28, 11:10 UTC2h 45m
2026-04-28 QLK1806 ADL → BNE Apr 28, 04:05 UTCApr 28, 06:20 UTC2h 15m
2026-04-28 QLK1805 - Apr 28, 00:55 UTCApr 28, 03:10 UTC2h 15m
2026-04-26 UTY7240 TSV → WEI Apr 26, 22:25 UTCApr 27, 04:55 UTC6h 30m
2026-04-26 QLK1846 BNE → BNE Apr 26, 05:35 UTCApr 26, 08:15 UTC2h 40m
2026-04-24 QLK7881 BNE → BNE Apr 24, 08:15 UTCApr 24, 10:45 UTC2h 30m
2026-04-23 UTY4823 BNE → AYQ Apr 23, 20:10 UTCApr 24, 04:05 UTC7h 55m
2026-04-21 UTY4824 ASP → BNE Apr 21, 04:55 UTCApr 21, 05:30 UTC35m
2026-04-16 UTY9821 - Apr 16, 07:45 UTCApr 16, 08:00 UTC15m
2026-04-15 UTY4823 - Apr 15, 20:05 UTCApr 15, 20:40 UTC35m
2026-04-14 QLK1984 - Apr 14, 05:15 UTCApr 14, 05:30 UTC15m
2026-04-13 QLK1981 - Apr 13, 22:10 UTCApr 13, 23:15 UTC1h 5m
2026-04-13 QLK1988 - Apr 13, 20:00 UTCApr 13, 21:00 UTC1h 0m
2026-04-13 QLK1987 - Apr 13, 09:40 UTCApr 13, 10:40 UTC1h 0m

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-A2S page for operator, model, and routing details .

Mode-S 7C0402 frequently asked

What is Mode-S code 7C0402?
7C0402 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-A2S.
Where is Mode-S 7C0402 registered?
Mode-S code 7C0402 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C0402 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C0402, octal 37002002, decimal 8,127,490.
What flights does 7C0402 operate?
Mode-S 7C0402 has broadcast 20 distinct callsigns, including UTY4823, QLK1981, UTY712, QLK1982, QLK1846.