Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C284

ICAO 24-bit transponder address · allocated to Korea, South

Currently assigned to HL8284 · BOEING 777-200

Hex
71C284
Octal
34341204
Decimal
7,455,364
Country
KR
Tail
HL8284
Type
B772
Broadcasting now · callsign AAR232 · 35,000 ft
Flights observed
120
Distinct callsigns
20
Country
KR
Last broadcast
3h ago

Current position

71C284 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C284 falls within the block assigned to Korea, South (KR) by ICAO Annex 10, Volume III. Every aircraft registered in Korea, South 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
AAR232 Asiana Airlines 15 2026-05-22
AAR231 Asiana Airlines 10 2026-05-22
AAR551 Asiana Airlines 9 2026-05-29
AAR372 Asiana Airlines 8 2026-05-25
AAR272 Asiana Airlines 8 2026-05-26
AAR704 Asiana Airlines 7 2026-05-28
AAR703 Asiana Airlines 7 2026-05-28
AAR602 Asiana Airlines 7 2026-05-26
AAR601 Asiana Airlines 7 2026-05-25
AAR552 Asiana Airlines 6 2026-05-30
AAR271 Asiana Airlines 6 2026-05-27
AAR371 Asiana Airlines 4 2026-05-25
AAR729 Asiana Airlines 3 2026-04-17
AAR333 Asiana Airlines 3 2026-05-21
AAR762 Asiana Airlines 2 2026-05-24
AAR730 Asiana Airlines 2 2026-04-17
AAR360 Asiana Airlines 2 2026-05-30
AAR334 Asiana Airlines 2 2026-05-21
AAR761 Asiana Airlines 1 2026-05-24
AAR702 Asiana Airlines 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AAR360 HGH → ICN May 30, 03:55 UTCMay 30, 09:15 UTC5h 20m
2026-05-30 AAR552 IST → ICN May 30, 00:10 UTCMay 30, 00:30 UTC20m
2026-05-29 AAR552 IST → ICN May 29, 15:10 UTCMay 29, 23:20 UTC8h 10m
2026-05-29 AAR551 ICN → IST May 29, 12:55 UTCMay 29, 13:20 UTC25m
2026-05-29 AAR551 ICN → IST May 29, 03:25 UTCMay 29, 12:10 UTC8h 45m
2026-05-29 AAR551 ICN → IST May 29, 02:05 UTCMay 29, 02:20 UTC15m
2026-05-28 AAR704 MNL → ICN May 28, 16:20 UTCMay 28, 19:35 UTC3h 15m
2026-05-28 AAR703 ICN → MNL May 28, 11:10 UTCMay 28, 14:40 UTC3h 30m
2026-05-28 AAR360 HGH → ICN May 28, 04:00 UTCMay 28, 09:10 UTC5h 10m
2026-05-27 AAR271 SEA → ICN May 27, 07:20 UTCMay 27, 18:45 UTC11h 25m
2026-05-26 AAR272 ICN → SEA May 26, 14:24 UTCMay 26, 16:05 UTC1h 40m
2026-05-26 AAR602 SYD → ICN May 26, 00:54 UTCMay 26, 11:44 UTC10h 50m
2026-05-25 AAR601 ICN → SYD May 25, 11:30 UTCMay 25, 20:55 UTC9h 24m
2026-05-25 AAR372 SZX → ICN May 25, 08:55 UTCMay 25, 09:25 UTC30m
2026-05-25 AAR372 SZX → ICN May 25, 06:35 UTCMay 25, 06:45 UTC10m
2026-05-25 AAR371 ICN → SZX May 25, 04:10 UTCMay 25, 04:20 UTC10m
2026-05-24 AAR762 CGK → ICN May 24, 16:35 UTCMay 24, 21:45 UTC5h 10m
2026-05-24 AAR762 CGK → ICN May 24, 14:45 UTCMay 24, 14:55 UTC10m
2026-05-24 AAR761 ICN → CGK May 24, 06:20 UTCMay 24, 11:10 UTC4h 50m
2026-05-23 AAR704 MNL → ICN May 23, 16:20 UTCMay 23, 19:35 UTC3h 15m
2026-05-23 AAR703 ICN → MNL May 23, 10:45 UTCMay 23, 14:10 UTC3h 25m
2026-05-22 AAR231 HNL → ICN May 22, 22:55 UTCMay 23, 08:15 UTC9h 19m
2026-05-22 AAR232 ICN → HNL May 22, 20:10 UTCMay 22, 20:25 UTC15m
2026-05-22 AAR232 ICN → HNL May 22, 12:05 UTCMay 22, 13:45 UTC1h 40m
2026-05-21 AAR602 SYD → ICN May 21, 23:45 UTCMay 22, 10:10 UTC10h 24m
2026-05-21 AAR601 ICN → SYD May 21, 11:30 UTCMay 21, 21:05 UTC9h 35m
2026-05-21 AAR334 PEK → ICN May 21, 08:55 UTCMay 21, 09:20 UTC25m
2026-05-21 AAR333 ICN → PEK May 21, 04:30 UTCMay 21, 04:50 UTC20m
2026-05-21 AAR552 IST → ICN May 21, 00:05 UTCMay 21, 00:30 UTC25m
2026-05-20 AAR552 IST → ICN May 20, 15:05 UTCMay 20, 23:15 UTC8h 10m
2026-05-20 AAR551 ICN → IST May 20, 03:10 UTCMay 20, 12:10 UTC9h 1m
2026-05-20 AAR551 ICN → IST May 20, 01:55 UTCMay 20, 02:15 UTC20m
2026-05-19 AAR271 SEA → ICN May 19, 07:35 UTCMay 19, 19:00 UTC11h 25m
2026-05-18 AAR272 ICN → SEA May 18, 12:50 UTCMay 18, 22:20 UTC9h 29m
2026-05-18 AAR362 PVG → ICN May 18, 00:20 UTCMay 18, 06:01 UTC5h 40m
2026-05-17 AAR704 MNL → ICN May 17, 16:01 UTCMay 17, 19:30 UTC3h 30m
2026-05-17 AAR703 ICN → MNL May 17, 10:40 UTCMay 17, 14:10 UTC3h 30m
2026-05-17 AAR702 MNL → ICN May 17, 04:20 UTCMay 17, 08:00 UTC3h 40m
2026-05-16 AAR701 ICN → MNL May 16, 23:20 UTCMay 17, 02:40 UTC3h 20m
2026-05-16 AAR271 SEA → ICN May 16, 07:45 UTCMay 16, 18:45 UTC11h 0m
2026-05-15 AAR272 ICN → SEA May 15, 12:50 UTCMay 15, 22:40 UTC9h 49m
2026-05-14 AAR602 SYD → ICN May 14, 23:50 UTCMay 15, 10:05 UTC10h 15m
2026-05-14 AAR601 ICN → SYD May 14, 11:25 UTCMay 14, 21:05 UTC9h 40m
2026-05-14 AAR103 NRT → ICN May 14, 07:40 UTCMay 14, 09:30 UTC1h 50m
2026-05-14 AAR104 ICN → NRT May 14, 03:35 UTCMay 14, 05:50 UTC2h 15m
2026-05-12 AAR602 SYD → ICN May 12, 23:45 UTCMay 13, 10:35 UTC10h 50m
2026-05-12 AAR601 ICN → SYD May 12, 11:30 UTCMay 12, 21:20 UTC9h 50m
2026-05-12 AAR231 HNL → ICN May 12, 06:45 UTCMay 12, 09:00 UTC2h 15m
2026-05-11 AAR232 ICN → HNL May 11, 20:40 UTCMay 11, 21:00 UTC20m
2026-05-11 AAR232 ICN → HNL May 11, 12:55 UTCMay 11, 14:40 UTC1h 45m

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 HL8284 page for operator, model, and routing details .

Mode-S 71C284 frequently asked

What is Mode-S code 71C284?
71C284 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8284.
Where is Mode-S 71C284 registered?
Mode-S code 71C284 is allocated to Korea, South (KR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 71C284 broadcasting right now?
Yes. Mode-S 71C284 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C284, octal 34341204, decimal 7,455,364.
What flights does 71C284 operate?
Mode-S 71C284 has broadcast 20 distinct callsigns, including AAR232, AAR231, AAR551, AAR372, AAR272.