Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71BE42

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

Currently assigned to HL7642 · BOEING 747-8

Hex
71BE42
Octal
34337102
Decimal
7,454,274
Country
KR
Tail
HL7642
Type
B748
No current signal · last broadcast 4h ago
Flights observed
105
Distinct callsigns
10
Country
KR
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 71BE42.

Country allocation

The ICAO 24-bit address 71BE42 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 10 distinct

Callsign Airline Flights Last seen
KAL018 - 31 2026-07-11
KAL017 - 30 2026-07-14
KAL012 - 13 2026-07-13
KAL8015 - 9 2026-06-22
KAL011 - 9 2026-07-12
KAL8016 - 8 2026-06-22
KAL2001 Korean Air 2 2026-04-19
KAL2022 Korean Air 1 2026-05-12
KAL2021 Korean Air 1 2026-05-12
KAL2002 Korean Air 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL017 - Jul 14, 05:55 UTCJul 14, 07:30 UTC1h 35m
2026-07-13 KAL012 - Jul 13, 07:10 UTCJul 13, 18:45 UTC11h 35m
2026-07-12 KAL011 - Jul 12, 11:10 UTCJul 12, 22:15 UTC11h 5m
2026-07-11 KAL018 - Jul 11, 20:30 UTCJul 12, 08:15 UTC11h 45m
2026-07-11 KAL017 ICN → LAX Jul 11, 05:55 UTCJul 11, 17:00 UTC11h 5m
2026-07-09 KAL018 - Jul 9, 20:20 UTCJul 10, 08:15 UTC11h 55m
2026-07-09 KAL017 ICN → LAX Jul 9, 06:00 UTCJul 9, 16:45 UTC10h 45m
2026-07-07 KAL018 - Jul 7, 20:20 UTCJul 8, 08:35 UTC12h 15m
2026-07-07 KAL017 ICN → LAX Jul 7, 06:00 UTCJul 7, 16:45 UTC10h 45m
2026-07-06 KAL012 - Jul 6, 07:35 UTCJul 6, 19:40 UTC12h 5m
2026-07-05 KAL011 ICN → LAX Jul 5, 11:10 UTCJul 5, 21:40 UTC10h 30m
2026-07-04 KAL012 LAX → ICN Jul 4, 07:10 UTCJul 4, 19:00 UTC11h 50m
2026-07-03 KAL011 - Jul 3, 11:10 UTCJul 3, 21:40 UTC10h 30m
2026-07-01 KAL018 - Jul 1, 20:15 UTCJul 2, 08:40 UTC12h 25m
2026-07-01 KAL017 ICN → LAX Jul 1, 06:05 UTCJul 1, 16:35 UTC10h 30m
2026-06-29 KAL018 - Jun 29, 19:49 UTCJun 30, 08:20 UTC12h 30m
2026-06-29 KAL017 - Jun 29, 05:50 UTCJun 29, 16:04 UTC10h 15m
2026-06-27 KAL012 - Jun 27, 07:39 UTCJun 27, 20:09 UTC12h 30m
2026-06-26 KAL011 ICN → LAX Jun 26, 11:09 UTCJun 26, 21:20 UTC10h 10m
2026-06-25 KAL012 - Jun 25, 18:45 UTCJun 25, 19:15 UTC30m
2026-06-25 KAL012 - Jun 25, 07:15 UTCJun 25, 17:49 UTC10h 35m
2026-06-24 KAL011 ICN → LAX Jun 24, 11:05 UTCJun 24, 21:24 UTC10h 20m
2026-06-22 KAL8016 - Jun 22, 17:34 UTCJun 23, 05:39 UTC12h 5m
2026-06-22 KAL8015 ICN → LAX Jun 22, 03:50 UTCJun 22, 14:10 UTC10h 20m
2026-06-20 KAL012 - Jun 20, 07:29 UTCJun 20, 19:09 UTC11h 40m
2026-06-19 KAL011 ICN → LAX Jun 19, 11:09 UTCJun 19, 21:54 UTC10h 45m
2026-06-18 KAL018 - Jun 18, 19:50 UTCJun 19, 07:25 UTC11h 34m
2026-06-18 KAL017 ICN → LAX Jun 18, 06:00 UTCJun 18, 16:40 UTC10h 40m
2026-06-16 KAL018 - Jun 16, 19:45 UTCJun 17, 07:30 UTC11h 46m
2026-06-16 KAL017 ICN → LAX Jun 16, 05:55 UTCJun 16, 16:39 UTC10h 45m
2026-06-15 KAL012 LAX → ICN Jun 15, 07:20 UTCJun 15, 19:20 UTC12h 0m
2026-06-14 KAL011 ICN → LAX Jun 14, 11:05 UTCJun 14, 21:15 UTC10h 10m
2026-06-12 KAL018 - Jun 12, 19:50 UTCJun 13, 07:25 UTC11h 34m
2026-06-12 KAL017 ICN → LAX Jun 12, 05:50 UTCJun 12, 15:55 UTC10h 5m
2026-06-10 KAL018 LAX → ICN Jun 10, 19:40 UTCJun 11, 08:25 UTC12h 45m
2026-06-10 KAL017 ICN → LAX Jun 10, 05:50 UTCJun 10, 15:50 UTC10h 0m
2026-06-08 KAL018 LAX → ICN Jun 8, 19:50 UTCJun 9, 09:00 UTC13h 10m
2026-06-08 KAL017 ICN → LAX Jun 8, 06:05 UTCJun 8, 16:05 UTC10h 0m
2026-06-06 KAL018 LAX → ICN Jun 6, 19:44 UTCJun 7, 08:05 UTC12h 20m
2026-06-06 KAL017 ICN → LAX Jun 6, 05:50 UTCJun 6, 15:59 UTC10h 10m
2026-05-31 KAL018 LAX → ICN May 31, 19:50 UTCJun 1, 07:40 UTC11h 50m
2026-05-31 KAL017 ICN → LAX May 31, 15:00 UTCMay 31, 16:05 UTC1h 5m
2026-05-29 KAL018 LAX → ICN May 29, 19:50 UTCMay 30, 08:45 UTC12h 55m
2026-05-29 KAL017 ICN → LAX May 29, 05:55 UTCMay 29, 16:05 UTC10h 10m
2026-05-25 KAL018 LAX → ICN May 25, 19:44 UTCMay 26, 07:55 UTC12h 10m
2026-05-25 KAL017 ICN → LAX May 25, 06:10 UTCMay 25, 16:45 UTC10h 35m
2026-05-23 KAL018 LAX → ICN May 23, 19:55 UTCMay 24, 08:30 UTC12h 35m
2026-05-23 KAL017 ICN → LAX May 23, 05:55 UTCMay 23, 16:05 UTC10h 10m
2026-05-22 KAL018 LAX → ICN May 22, 06:50 UTCMay 22, 08:35 UTC1h 45m
2026-05-21 KAL018 LAX → ICN May 21, 19:45 UTCMay 22, 06:45 UTC11h 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 HL7642 page for operator, model, and routing details .

Mode-S 71BE42 frequently asked

What is Mode-S code 71BE42?
71BE42 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7642.
Where is Mode-S 71BE42 registered?
Mode-S code 71BE42 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 71BE42 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BE42, octal 34337102, decimal 7,454,274.
What flights does 71BE42 operate?
Mode-S 71BE42 has broadcast 10 distinct callsigns, including KAL018, KAL017, KAL012, KAL8015, KAL011.