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sensors Mode-S transponder

71BD07

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

Currently assigned to HL7507 · BOEING 767-300

Hex
71BD07
Octal
34336407
Decimal
7,453,959
Country
KR
Tail
HL7507
Type
B763
No current signal · last broadcast 31m ago
Flights observed
319
Distinct callsigns
20
Country
KR
Last broadcast
31m ago

Last known position

Most recent position reported by Mode-S 71BD07.

Country allocation

The ICAO 24-bit address 71BD07 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
AIH194 - 40 2026-07-14
AIH193 - 39 2026-07-12
AIH390 - 35 2026-07-12
AIH388 - 35 2026-07-13
AIH387 Alpine Air Chile 32 2026-07-12
AIH389 - 24 2026-07-11
AIH986 - 22 2026-07-11
AIH985 - 22 2026-07-11
AIH392 - 13 2026-07-14
AIH997 - 11 2026-07-11
AIH998 - 10 2026-07-11
AIH987 - 9 2026-07-06
AIH391 Alpine Air Chile 8 2026-07-13
AIH988 - 6 2026-07-13
AIH1931 - 3 2026-06-11
AIH1941 - 2 2026-06-11
KJ985 - 1 2026-04-18
AIH978 - 1 2026-06-16
AIH977 - 1 2026-06-16
AIH3921 - 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AIH194 - Jul 14, 04:05 UTCJul 14, 05:45 UTC1h 40m
2026-07-14 AIH392 - Jul 14, 01:25 UTCJul 14, 02:10 UTC45m
2026-07-13 AIH391 ICN → HAN Jul 13, 15:50 UTCJul 13, 18:30 UTC2h 40m
2026-07-13 AIH988 ICN → ICN Jul 13, 04:25 UTCJul 13, 10:05 UTC5h 40m
2026-07-13 AIH388 - Jul 13, 01:05 UTCJul 13, 01:50 UTC45m
2026-07-12 AIH388 - Jul 12, 21:50 UTCJul 12, 22:00 UTC10m
2026-07-12 AIH387 ICN → HAN Jul 12, 15:45 UTCJul 12, 16:25 UTC40m
2026-07-12 AIH193 - Jul 12, 10:20 UTCJul 12, 12:10 UTC1h 50m
2026-07-12 AIH194 ICN → NRT Jul 12, 06:20 UTCJul 12, 08:20 UTC2h 0m
2026-07-12 AIH390 - Jul 12, 03:01 UTCJul 12, 03:15 UTC14m
2026-07-11 AIH389 - Jul 11, 17:05 UTCJul 11, 17:20 UTC15m
2026-07-11 AIH998 - Jul 11, 14:35 UTCJul 11, 14:55 UTC20m
2026-07-11 AIH997 - Jul 11, 10:25 UTCJul 11, 10:40 UTC15m
2026-07-11 AIH986 - Jul 11, 07:20 UTCJul 11, 07:45 UTC25m
2026-07-11 AIH985 - Jul 11, 04:25 UTCJul 11, 04:40 UTC15m
2026-07-11 AIH388 - Jul 11, 01:25 UTCJul 11, 02:05 UTC40m
2026-07-10 AIH387 ICN → HAN Jul 10, 15:50 UTCJul 10, 16:30 UTC40m
2026-07-10 AIH193 - Jul 10, 08:10 UTCJul 10, 10:05 UTC1h 55m
2026-07-10 AIH194 ICN → NRT Jul 10, 04:20 UTCJul 10, 06:20 UTC2h 0m
2026-07-09 AIH193 - Jul 9, 08:15 UTCJul 9, 10:10 UTC1h 55m
2026-07-09 AIH194 ICN → NRT Jul 9, 04:45 UTCJul 9, 06:45 UTC2h 0m
2026-07-09 AIH388 - Jul 9, 01:15 UTCJul 9, 01:55 UTC40m
2026-07-08 AIH388 - Jul 8, 22:00 UTCJul 8, 22:10 UTC10m
2026-07-08 AIH387 ICN → HAN Jul 8, 15:35 UTCJul 8, 16:15 UTC40m
2026-07-08 AIH986 - Jul 8, 07:30 UTCJul 8, 07:50 UTC20m
2026-07-08 AIH985 - Jul 8, 04:20 UTCJul 8, 04:40 UTC20m
2026-07-08 AIH390 - Jul 8, 01:15 UTCJul 8, 02:05 UTC50m
2026-07-07 AIH390 - Jul 7, 22:00 UTCJul 7, 22:10 UTC10m
2026-07-07 AIH389 - Jul 7, 15:45 UTCJul 7, 16:30 UTC45m
2026-07-07 AIH193 NRT → ICN Jul 7, 08:05 UTCJul 7, 10:00 UTC1h 55m
2026-07-07 AIH194 ICN → NRT Jul 7, 04:10 UTCJul 7, 06:10 UTC2h 0m
2026-07-07 AIH392 - Jul 7, 00:55 UTCJul 7, 01:35 UTC40m
2026-07-06 AIH392 - Jul 6, 21:50 UTCJul 6, 22:00 UTC10m
2026-07-06 AIH391 ICN → HAN Jul 6, 15:50 UTCJul 6, 16:25 UTC35m
2026-07-06 AIH987 ICN → ICN Jul 6, 04:30 UTCJul 6, 10:40 UTC6h 10m
2026-07-06 AIH388 - Jul 6, 01:00 UTCJul 6, 01:40 UTC40m
2026-07-05 AIH388 - Jul 5, 21:55 UTCJul 5, 22:10 UTC15m
2026-07-05 AIH387 ICN → HAN Jul 5, 15:35 UTCJul 5, 19:25 UTC3h 50m
2026-07-05 AIH193 - Jul 5, 10:00 UTCJul 5, 12:10 UTC2h 10m
2026-07-05 AIH194 ICN → NRT Jul 5, 06:10 UTCJul 5, 08:00 UTC1h 50m
2026-07-04 AIH390 - Jul 4, 23:25 UTCJul 5, 03:20 UTC3h 55m
2026-07-04 AIH389 - Jul 4, 17:20 UTCJul 4, 21:15 UTC3h 55m
2026-07-04 AIH998 - Jul 4, 14:40 UTCJul 4, 15:00 UTC20m
2026-07-04 AIH997 - Jul 4, 10:25 UTCJul 4, 10:40 UTC15m
2026-07-04 AIH986 - Jul 4, 07:40 UTCJul 4, 08:00 UTC20m
2026-07-04 AIH985 - Jul 4, 04:40 UTCJul 4, 04:55 UTC15m
2026-07-03 AIH388 - Jul 3, 22:00 UTCJul 4, 01:50 UTC3h 50m
2026-07-03 AIH387 ICN → HAN Jul 3, 15:50 UTCJul 3, 19:30 UTC3h 40m
2026-07-03 AIH193 - Jul 3, 09:45 UTCJul 3, 10:10 UTC25m
2026-07-03 AIH194 - Jul 3, 04:25 UTCJul 3, 06:20 UTC1h 55m

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 HL7507 page for operator, model, and routing details .

Mode-S 71BD07 frequently asked

What is Mode-S code 71BD07?
71BD07 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7507.
Where is Mode-S 71BD07 registered?
Mode-S code 71BD07 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 71BD07 broadcasting right now?
No active broadcast right now. Last signal was 31m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BD07, octal 34336407, decimal 7,453,959.
What flights does 71BD07 operate?
Mode-S 71BD07 has broadcast 20 distinct callsigns, including AIH194, AIH193, AIH390, AIH388, AIH387.