Apparatus

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sensors Mode-S transponder

71BE45

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

Currently assigned to HL7645 · BOEING 747-400

Hex
71BE45
Octal
34337105
Decimal
7,454,277
Country
KR
Tail
HL7645
Type
B744
No current signal · last broadcast 28d ago
Flights observed
68
Distinct callsigns
20
Country
KR
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S 71BE45.

Country allocation

The ICAO 24-bit address 71BE45 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
AIH284 Alpine Air Chile 12 2026-04-25
AIH969 - 9 2026-04-29
AIH283 Alpine Air Chile 8 2026-04-25
AIH970 - 6 2026-04-29
AIH952 - 5 2026-04-18
AIH248 Alpine Air Chile 3 2026-04-23
AIH798 - 2 2026-04-27
AIH797 - 2 2026-04-27
AIH776 - 2 2026-04-30
AIH775 - 2 2026-04-30
AIH396 - 2 2026-04-28
AIH286 Alpine Air Chile 2 2026-04-19
AIH247 Alpine Air Chile 2 2026-04-23
AIH998 - 1 2026-04-15
AIH997 - 1 2026-04-15
AIH988 - 1 2026-04-24
AIH951 - 1 2026-04-17
AIH9011 - 1 2026-05-01
AIH395 - 1 2026-04-28
AIH3941 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-01 AIH9011 - May 1, 00:35 UTCMay 1, 02:55 UTC2h 20m
2026-04-30 AIH776 - Apr 30, 22:10 UTCApr 30, 22:25 UTC15m
2026-04-30 AIH776 - Apr 30, 11:20 UTCApr 30, 21:15 UTC9h 55m
2026-04-30 AIH775 VIE → FRA Apr 30, 07:00 UTCApr 30, 08:10 UTC1h 10m
2026-04-29 AIH775 - Apr 29, 14:20 UTCApr 30, 04:40 UTC14h 19m
2026-04-29 AIH970 - Apr 29, 09:35 UTCApr 29, 11:40 UTC2h 5m
2026-04-29 AIH970 - Apr 29, 08:50 UTCApr 29, 09:00 UTC11m
2026-04-29 AIH969 - Apr 29, 06:10 UTCApr 29, 06:35 UTC25m
2026-04-29 AIH969 - Apr 29, 03:15 UTCApr 29, 05:35 UTC2h 20m
2026-04-28 AIH396 - Apr 28, 19:45 UTCApr 29, 00:15 UTC4h 30m
2026-04-28 AIH396 - Apr 28, 15:50 UTCApr 28, 17:40 UTC1h 50m
2026-04-28 AIH395 - Apr 28, 07:05 UTCApr 28, 12:55 UTC5h 50m
2026-04-27 AIH798 - Apr 27, 21:15 UTCApr 27, 21:35 UTC20m
2026-04-27 AIH798 - Apr 27, 10:40 UTCApr 27, 20:30 UTC9h 50m
2026-04-27 AIH797 VIE → MXP Apr 27, 06:45 UTCApr 27, 07:55 UTC1h 10m
2026-04-26 AIH797 - Apr 26, 14:20 UTCApr 27, 04:20 UTC14h 0m
2026-04-26 AIH970 - Apr 26, 06:50 UTCApr 26, 09:50 UTC3h 0m
2026-04-26 AIH969 - Apr 26, 04:15 UTCApr 26, 04:30 UTC15m
2026-04-26 AIH969 - Apr 26, 01:25 UTCApr 26, 03:40 UTC2h 15m
2026-04-25 AIH283 SFO → ICN Apr 25, 10:20 UTCApr 25, 22:05 UTC11h 45m
2026-04-25 AIH284 ICN → LAX Apr 25, 06:45 UTCApr 25, 07:40 UTC55m
2026-04-24 AIH284 ICN → LAX Apr 24, 17:20 UTCApr 25, 04:00 UTC10h 40m
2026-04-24 AIH988 - Apr 24, 08:30 UTCApr 24, 14:05 UTC5h 35m
2026-04-23 AIH247 ATL → ANC Apr 23, 20:30 UTCApr 24, 05:25 UTC8h 55m
2026-04-23 AIH247 ATL → ANC Apr 23, 11:25 UTCApr 23, 18:30 UTC7h 5m
2026-04-23 AIH248 ANC → ORD Apr 23, 07:10 UTCApr 23, 08:35 UTC1h 25m
2026-04-22 AIH248 ANC → ORD Apr 22, 23:30 UTCApr 23, 04:55 UTC5h 25m
2026-04-22 AIH248 ANC → ORD Apr 22, 14:50 UTCApr 22, 22:05 UTC7h 15m
2026-04-22 AIH970 - Apr 22, 09:05 UTCApr 22, 12:00 UTC2h 55m
2026-04-22 AIH969 - Apr 22, 06:10 UTCApr 22, 06:30 UTC20m
2026-04-22 AIH969 - Apr 22, 03:15 UTCApr 22, 05:35 UTC2h 20m
2026-04-21 AIH283 SFO → ICN Apr 21, 12:15 UTCApr 22, 00:05 UTC11h 50m
2026-04-21 AIH284 ICN → LAX Apr 21, 06:40 UTCApr 21, 07:30 UTC50m
2026-04-20 AIH284 ICN → LAX Apr 20, 15:00 UTCApr 21, 02:00 UTC11h 0m
2026-04-19 AIH285 SFO → ICN Apr 19, 10:20 UTCApr 19, 21:55 UTC11h 35m
2026-04-19 AIH286 ICN → LAX Apr 19, 06:45 UTCApr 19, 07:35 UTC50m
2026-04-18 AIH286 ICN → LAX Apr 18, 17:30 UTCApr 19, 04:10 UTC10h 40m
2026-04-18 AIH197 - Apr 18, 12:50 UTCApr 18, 14:45 UTC1h 55m
2026-04-18 AIH198 - Apr 18, 08:10 UTCApr 18, 09:50 UTC1h 40m
2026-04-18 AIH952 - Apr 18, 04:45 UTCApr 18, 05:15 UTC30m
2026-04-18 AIH952 - Apr 18, 04:40 UTCApr 18, 05:15 UTC35m
2026-04-18 AIH952 - Apr 18, 03:25 UTCApr 18, 03:40 UTC15m
2026-04-18 AIH952 - Apr 18, 02:30 UTCApr 18, 03:20 UTC50m
2026-04-17 AIH952 - Apr 17, 23:25 UTCApr 17, 23:55 UTC30m
2026-04-17 AIH951 - Apr 17, 15:20 UTCApr 17, 15:35 UTC15m
2026-04-17 AIH970 - Apr 17, 11:40 UTCApr 17, 12:15 UTC35m
2026-04-17 AIH970 - Apr 17, 09:25 UTCApr 17, 10:40 UTC1h 15m
2026-04-17 AIH969 - Apr 17, 06:35 UTCApr 17, 06:50 UTC15m
2026-04-17 AIH969 - Apr 17, 05:20 UTCApr 17, 06:00 UTC40m
2026-04-17 AIH969 - Apr 17, 03:40 UTCApr 17, 04:15 UTC35m

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 HL7645 page for operator, model, and routing details .

Mode-S 71BE45 frequently asked

What is Mode-S code 71BE45?
71BE45 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7645.
Where is Mode-S 71BE45 registered?
Mode-S code 71BE45 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 71BE45 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BE45, octal 34337105, decimal 7,454,277.
What flights does 71BE45 operate?
Mode-S 71BE45 has broadcast 20 distinct callsigns, including AIH284, AIH969, AIH283, AIH970, AIH952.