Apparatus

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sensors Mode-S transponder

71BE03

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

Currently assigned to HL7603 · BOEING 747-400

Hex
71BE03
Octal
34337003
Decimal
7,454,211
Country
KR
Tail
HL7603
Type
B744
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
324
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S 71BE03.

Country allocation

The ICAO 24-bit address 71BE03 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
KAL362 - 22 2026-07-26
KAL9357 - 20 2026-07-16
KAL361 Korean Air 18 2026-07-25
KAL363 - 17 2026-07-10
KAL320 - 15 2026-06-30
KAL9313 Korean Air 14 2026-07-23
KAL317 - 14 2026-07-21
KAL319 Korean Air 12 2026-06-20
KAL318 - 12 2026-07-21
KAL364 - 11 2026-07-10
KAL9314 - 10 2026-07-23
KAL381 Korean Air 10 2026-06-24
KAL9358 - 9 2026-07-16
KAL373 - 8 2026-07-17
KAL327 - 8 2026-07-24
KAL552 Korean Air 7 2026-07-26
KAL551 Korean Air 7 2026-07-26
KAL382 - 7 2026-06-24
KAL328 - 7 2026-07-25
KAL8316 - 6 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL316 - Jul 26, 14:15 UTCJul 26, 21:50 UTC7h 35m
2026-07-26 KAL552 NRT → ICN Jul 26, 09:15 UTCJul 26, 11:05 UTC1h 50m
2026-07-26 KAL551 ICN → NRT Jul 26, 05:15 UTCJul 26, 07:05 UTC1h 51m
2026-07-26 KAL362 - Jul 26, 00:30 UTCJul 26, 01:10 UTC40m
2026-07-25 KAL362 - Jul 25, 21:20 UTCJul 25, 21:30 UTC10m
2026-07-25 KAL361 ICN → HAN Jul 25, 15:05 UTCJul 25, 15:30 UTC25m
2026-07-25 KAL328 - Jul 25, 04:25 UTCJul 25, 04:50 UTC25m
2026-07-24 KAL327 - Jul 24, 18:20 UTCJul 25, 03:30 UTC9h 10m
2026-07-24 KAL8314 HKG → ICN Jul 24, 11:20 UTCJul 24, 14:20 UTC3h 0m
2026-07-24 KAL8313 ICN → HKG Jul 24, 06:00 UTCJul 24, 09:00 UTC3h 0m
2026-07-24 KAL362 - Jul 24, 02:35 UTCJul 24, 03:15 UTC40m
2026-07-23 KAL362 - Jul 23, 23:25 UTCJul 23, 23:35 UTC10m
2026-07-23 KAL361 ICN → HAN Jul 23, 15:25 UTCJul 23, 16:10 UTC45m
2026-07-23 KAL9314 HKG → ICN Jul 23, 08:55 UTCJul 23, 12:00 UTC3h 5m
2026-07-23 KAL9313 ICN → ICN Jul 23, 03:45 UTCJul 23, 06:45 UTC3h 0m
2026-07-22 KAL362 - Jul 22, 00:40 UTCJul 22, 01:25 UTC45m
2026-07-21 KAL362 - Jul 21, 21:35 UTCJul 21, 21:50 UTC15m
2026-07-21 KAL361 ICN → HAN Jul 21, 15:05 UTCJul 21, 15:45 UTC40m
2026-07-21 KAL318 - Jul 21, 09:15 UTCJul 21, 09:40 UTC25m
2026-07-21 KAL317 - Jul 21, 03:45 UTCJul 21, 04:15 UTC30m
2026-07-20 KAL8316 ICN → ICN Jul 20, 17:05 UTCJul 20, 23:20 UTC6h 15m
2026-07-20 KAL8392 - Jul 20, 06:45 UTCJul 20, 09:40 UTC2h 55m
2026-07-20 KAL8392 - Jul 20, 04:40 UTCJul 20, 04:50 UTC10m
2026-07-20 KAL8391 PEN → BKK Jul 20, 01:25 UTCJul 20, 01:50 UTC25m
2026-07-19 KAL8391 - Jul 19, 16:05 UTCJul 19, 18:45 UTC2h 40m
2026-07-19 KAL344 - Jul 19, 04:55 UTCJul 19, 07:40 UTC2h 45m
2026-07-19 KAL344 - Jul 19, 01:50 UTCJul 19, 02:00 UTC10m
2026-07-18 KAL343 - Jul 18, 23:00 UTCJul 18, 23:10 UTC10m
2026-07-18 KAL343 - Jul 18, 20:10 UTCJul 18, 21:30 UTC1h 20m
2026-07-18 KAL343 - Jul 18, 14:25 UTCJul 18, 17:45 UTC3h 20m
2026-07-18 KAL374 - Jul 18, 05:40 UTCJul 18, 08:30 UTC2h 50m
2026-07-18 KAL374 - Jul 18, 02:45 UTCJul 18, 02:55 UTC11m
2026-07-17 KAL373 - Jul 17, 23:39 UTCJul 18, 00:04 UTC25m
2026-07-17 KAL373 - Jul 17, 22:35 UTCJul 17, 23:00 UTC25m
2026-07-17 KAL373 - Jul 17, 15:15 UTCJul 17, 15:55 UTC40m
2026-07-17 KAL552 - Jul 17, 09:55 UTCJul 17, 11:50 UTC1h 55m
2026-07-17 KAL551 ICN → NRT Jul 17, 05:04 UTCJul 17, 07:05 UTC2h 0m
2026-07-16 KAL336 ICN → ICN Jul 16, 18:25 UTCJul 17, 01:45 UTC7h 20m
2026-07-16 KAL9358 - Jul 16, 09:05 UTCJul 16, 12:00 UTC2h 55m
2026-07-16 KAL9358 - Jul 16, 06:50 UTCJul 16, 07:00 UTC10m
2026-07-16 KAL9357 - Jul 16, 04:00 UTCJul 16, 04:25 UTC25m
2026-07-16 KAL9357 - Jul 16, 02:25 UTCJul 16, 02:50 UTC25m
2026-07-15 KAL9357 - Jul 15, 18:20 UTCJul 15, 23:35 UTC5h 15m
2026-07-15 KAL554 KIX → ICN Jul 15, 10:20 UTCJul 15, 11:40 UTC1h 20m
2026-07-15 KAL553 ICN → KIX Jul 15, 06:20 UTCJul 15, 07:50 UTC1h 30m
2026-07-14 KAL8315 ICN → ICN Jul 14, 17:25 UTCJul 14, 23:30 UTC6h 4m
2026-07-14 KAL9314 - Jul 14, 09:25 UTCJul 14, 12:40 UTC3h 15m
2026-07-14 KAL9313 ICN → HKG Jul 14, 03:50 UTCJul 14, 06:45 UTC2h 55m
2026-07-14 KAL362 - Jul 14, 00:25 UTCJul 14, 01:05 UTC40m
2026-07-13 KAL362 - Jul 13, 21:15 UTCJul 13, 21:25 UTC10m

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 HL7603 page for operator, model, and routing details .

Mode-S 71BE03 frequently asked

What is Mode-S code 71BE03?
71BE03 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7603.
Where is Mode-S 71BE03 registered?
Mode-S code 71BE03 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 71BE03 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BE03, octal 34337003, decimal 7,454,211.
What flights does 71BE03 operate?
Mode-S 71BE03 has broadcast 20 distinct callsigns, including KAL362, KAL9357, KAL361, KAL363, KAL320.