Apparatus

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sensors Mode-S transponder

71BF82

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

Currently assigned to HL7782 · BOEING 777-300ER

Hex
71BF82
Octal
34337602
Decimal
7,454,594
Country
KR
Tail
HL7782
Type
B77W
Broadcasting now · callsign KAL658 · 37,000 ft
Flights observed
179
Distinct callsigns
20
Country
KR
Last broadcast
2h ago

Current position

71BF82 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71BF82 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
KAL946 - 23 2026-07-04
KAL945 - 19 2026-07-03
KAL037 - 13 2026-07-07
KAL038 Korean Air 12 2026-07-07
KAL926 - 11 2026-07-13
KAL652 - 10 2026-07-08
KAL651 - 10 2026-07-08
KAL925 - 9 2026-07-12
KAL476 - 6 2026-07-06
KAL437 Korean Air 6 2026-05-21
KAL475 - 5 2026-07-11
KAL438 Korean Air 5 2026-05-21
KAL787 Korean Air 3 2026-05-30
KAL643 Korean Air 3 2026-05-12
KAL9976 - 2 2026-07-02
KAL9975 - 2 2026-07-01
KAL788 Korean Air 2 2026-05-21
KAL657 - 2 2026-07-14
KAL646 Korean Air 2 2026-06-07
KAL645 Korean Air 2 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL658 - Jul 14, 15:45 UTCJul 14, 15:55 UTC10m
2026-07-14 KAL657 - Jul 14, 05:50 UTCJul 14, 06:25 UTC35m
2026-07-14 KAL657 - Jul 14, 01:20 UTCJul 14, 04:00 UTC2h 40m
2026-07-13 KAL926 - Jul 13, 07:01 UTCJul 13, 07:25 UTC25m
2026-07-12 KAL926 - Jul 12, 20:20 UTCJul 13, 06:10 UTC9h 50m
2026-07-12 KAL925 - Jul 12, 04:25 UTCJul 12, 16:20 UTC11h 55m
2026-07-12 KAL925 - Jul 12, 03:20 UTCJul 12, 03:35 UTC15m
2026-07-11 KAL475 ICN → ICN Jul 11, 13:00 UTCJul 12, 00:45 UTC11h 45m
2026-07-11 KAL926 - Jul 11, 06:40 UTCJul 11, 07:10 UTC30m
2026-07-10 KAL926 - Jul 10, 20:00 UTCJul 11, 05:50 UTC9h 50m
2026-07-10 KAL925 - Jul 10, 03:10 UTCJul 10, 16:35 UTC13h 25m
2026-07-08 KAL652 BKK → ICN Jul 8, 17:10 UTCJul 8, 22:05 UTC4h 55m
2026-07-08 KAL651 ICN → BKK Jul 8, 09:20 UTCJul 8, 14:50 UTC5h 30m
2026-07-07 KAL038 ORD → ICN Jul 7, 18:05 UTCJul 8, 07:25 UTC13h 20m
2026-07-07 KAL037 ICN → ORD Jul 7, 02:10 UTCJul 7, 14:35 UTC12h 25m
2026-07-06 KAL476 - Jul 6, 10:35 UTCJul 6, 22:00 UTC11h 25m
2026-07-05 KAL092 BOS → ICN Jul 5, 17:25 UTCJul 6, 08:05 UTC14h 40m
2026-07-05 KAL091 ICN → BOS Jul 5, 00:50 UTCJul 5, 14:00 UTC13h 10m
2026-07-04 KAL476 ICN → ICN Jul 4, 10:50 UTCJul 4, 22:10 UTC11h 20m
2026-07-04 KAL946 - Jul 4, 04:45 UTCJul 4, 05:10 UTC25m
2026-07-03 KAL946 - Jul 3, 18:15 UTCJul 4, 04:00 UTC9h 45m
2026-07-03 KAL945 - Jul 3, 03:30 UTCJul 3, 14:50 UTC11h 20m
2026-07-03 KAL945 - Jul 3, 02:15 UTCJul 3, 02:35 UTC20m
2026-07-02 KAL9976 - Jul 2, 10:15 UTCJul 2, 10:40 UTC25m
2026-07-01 KAL9976 - Jul 1, 23:50 UTCJul 2, 09:25 UTC9h 35m
2026-07-01 KAL9975 - Jul 1, 20:10 UTCJul 1, 20:50 UTC40m
2026-07-01 KAL9975 ICN → MXP Jul 1, 05:30 UTCJul 1, 18:45 UTC13h 15m
2026-06-30 KAL892 ICN → ICN Jun 30, 10:05 UTCJul 1, 02:45 UTC16h 40m
2026-06-30 KAL926 - Jun 30, 06:50 UTCJun 30, 07:10 UTC20m
2026-06-29 KAL926 - Jun 29, 19:44 UTCJun 30, 06:00 UTC10h 16m
2026-06-29 KAL925 ICN → AMS Jun 29, 03:10 UTCJun 29, 16:15 UTC13h 5m
2026-06-28 KAL652 - Jun 28, 17:10 UTCJun 28, 21:59 UTC4h 50m
2026-06-28 KAL651 ICN → BKK Jun 28, 09:25 UTCJun 28, 14:30 UTC5h 5m
2026-06-27 KAL038 ORD → ICN Jun 27, 17:44 UTCJun 28, 06:59 UTC13h 15m
2026-06-27 KAL037 ICN → ORD Jun 27, 02:04 UTCJun 27, 14:29 UTC12h 25m
2026-06-26 KAL476 ICN → ICN Jun 26, 10:25 UTCJun 26, 22:10 UTC11h 45m
2026-06-25 KAL946 - Jun 25, 05:05 UTCJun 25, 05:29 UTC25m
2026-06-24 KAL946 - Jun 24, 18:29 UTCJun 25, 04:20 UTC9h 50m
2026-06-24 KAL945 ICN → FRA Jun 24, 02:15 UTCJun 24, 15:05 UTC12h 50m
2026-06-23 KAL844 - Jun 23, 08:20 UTCJun 23, 08:50 UTC30m
2026-06-23 KAL843 - Jun 23, 05:04 UTCJun 23, 05:29 UTC25m
2026-06-22 KAL891 ICN → ICN Jun 22, 10:25 UTCJun 23, 03:00 UTC16h 35m
2026-06-22 KAL946 - Jun 22, 04:49 UTCJun 22, 05:20 UTC30m
2026-06-21 KAL946 - Jun 21, 18:25 UTCJun 22, 04:04 UTC9h 40m
2026-06-21 KAL945 - Jun 21, 03:40 UTCJun 21, 15:19 UTC11h 40m
2026-06-21 KAL945 - Jun 21, 02:30 UTCJun 21, 02:45 UTC15m
2026-06-19 KAL038 ORD → ICN Jun 19, 17:55 UTCJun 20, 07:04 UTC13h 10m
2026-06-19 KAL037 ICN → ORD Jun 19, 02:04 UTCJun 19, 14:44 UTC12h 40m
2026-06-18 KAL652 - Jun 18, 17:10 UTCJun 18, 22:05 UTC4h 55m
2026-06-18 KAL651 - Jun 18, 09:35 UTCJun 18, 14:45 UTC5h 10m

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 HL7782 page for operator, model, and routing details .

Mode-S 71BF82 frequently asked

What is Mode-S code 71BF82?
71BF82 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7782.
Where is Mode-S 71BF82 registered?
Mode-S code 71BF82 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 71BF82 broadcasting right now?
Yes. Mode-S 71BF82 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BF82, octal 34337602, decimal 7,454,594.
What flights does 71BF82 operate?
Mode-S 71BF82 has broadcast 20 distinct callsigns, including KAL946, KAL945, KAL037, KAL038, KAL926.