sensors Mode-S transponder

71BA02

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

Currently assigned to HL7202 · BOEING 777-300ER

Hex
71BA02
Octal
34335002
Decimal
7,453,186
Country
KR
Tail
HL7202
Type
B77W
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
201
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S 71BA02.

Country allocation

The ICAO 24-bit address 71BA02 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
KAL907 Korean Air 20 2026-07-19
KAL908 Korean Air 19 2026-07-20
KAL094 Korean Air 17 2026-07-24
KAL902 Korean Air 16 2026-07-21
KAL093 Korean Air 14 2026-07-24
KAL901 Korean Air 13 2026-07-21
KAL035 - 13 2026-06-19
KAL036 - 12 2026-06-19
KAL006 - 11 2026-06-21
KAL005 - 9 2026-06-20
KAL646 Korean Air 8 2026-07-20
KAL645 - 7 2026-07-20
KAL034 - 7 2026-07-11
KAL033 - 7 2026-07-11
KAL085 Korean Air 6 2026-07-07
KAL086 Korean Air 5 2026-07-08
KAL602 Korean Air 3 2026-07-25
KAL658 Korean Air 2 2026-07-26
KAL657 Korean Air 2 2026-07-26
KAL2001 Korean Air 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL658 BKK → ICN Jul 26, 14:55 UTCJul 26, 20:15 UTC5h 20m
2026-07-26 KAL657 ICN → BKK Jul 26, 01:10 UTCJul 26, 06:10 UTC5h 0m
2026-07-25 KAL602 CEB → ICN Jul 25, 11:45 UTCJul 25, 21:30 UTC9h 45m
2026-07-24 KAL094 IAD → ICN Jul 24, 17:55 UTCJul 25, 09:10 UTC15h 15m
2026-07-24 KAL093 ICN → IAD Jul 24, 02:00 UTCJul 24, 14:55 UTC12h 55m
2026-07-23 KAL658 - Jul 23, 15:35 UTCJul 23, 20:30 UTC4h 55m
2026-07-23 KAL657 ICN → BKK Jul 23, 01:15 UTCJul 23, 06:10 UTC4h 55m
2026-07-21 KAL902 CDG → ICN Jul 21, 19:30 UTCJul 21, 23:30 UTC4h 0m
2026-07-21 KAL901 ICN → CDG Jul 21, 04:20 UTCJul 21, 16:40 UTC12h 20m
2026-07-21 KAL901 ICN → CDG Jul 21, 03:05 UTCJul 21, 03:25 UTC20m
2026-07-20 KAL646 SIN → ICN Jul 20, 20:40 UTCJul 20, 23:30 UTC2h 50m
2026-07-20 KAL645 - Jul 20, 15:15 UTCJul 20, 15:30 UTC15m
2026-07-20 KAL645 - Jul 20, 10:00 UTCJul 20, 12:35 UTC2h 35m
2026-07-20 KAL908 LHR → ICN Jul 20, 06:15 UTCJul 20, 06:45 UTC30m
2026-07-19 KAL908 LHR → ICN Jul 19, 19:10 UTCJul 20, 05:25 UTC10h 15m
2026-07-19 KAL907 ICN → LHR Jul 19, 03:35 UTCJul 19, 16:05 UTC12h 30m
2026-07-19 KAL907 ICN → LHR Jul 19, 02:25 UTCJul 19, 02:45 UTC20m
2026-07-18 KAL646 SIN → ICN Jul 18, 21:20 UTCJul 19, 00:10 UTC2h 50m
2026-07-18 KAL645 - Jul 18, 10:25 UTCJul 18, 16:05 UTC5h 40m
2026-07-18 KAL908 - Jul 18, 06:10 UTCJul 18, 06:30 UTC20m
2026-07-17 KAL908 - Jul 17, 19:20 UTCJul 18, 05:20 UTC10h 1m
2026-07-17 KAL907 - Jul 17, 03:50 UTCJul 17, 16:15 UTC12h 25m
2026-07-17 KAL907 - Jul 17, 02:39 UTCJul 17, 02:59 UTC20m
2026-07-16 KAL624 - Jul 16, 15:55 UTCJul 16, 19:14 UTC3h 20m
2026-07-16 KAL623 - Jul 16, 10:25 UTCJul 16, 13:40 UTC3h 15m
2026-07-16 KAL908 - Jul 16, 06:10 UTCJul 16, 06:30 UTC20m
2026-07-15 KAL908 - Jul 15, 19:15 UTCJul 16, 05:20 UTC10h 5m
2026-07-15 KAL907 - Jul 15, 03:55 UTCJul 15, 16:25 UTC12h 30m
2026-07-15 KAL907 - Jul 15, 02:40 UTCJul 15, 03:00 UTC20m
2026-07-13 KAL094 IAD → ICN Jul 13, 17:50 UTCJul 14, 08:15 UTC14h 25m
2026-07-13 KAL093 ICN → IAD Jul 13, 01:55 UTCJul 13, 15:05 UTC13h 10m
2026-07-11 KAL034 ATL → ICN Jul 11, 16:20 UTCJul 12, 06:30 UTC14h 10m
2026-07-11 KAL033 - Jul 11, 00:35 UTCJul 11, 14:00 UTC13h 25m
2026-07-09 KAL902 CDG → ICN Jul 9, 19:00 UTCJul 9, 21:40 UTC2h 40m
2026-07-09 KAL901 - Jul 9, 04:15 UTCJul 9, 16:25 UTC12h 10m
2026-07-09 KAL901 - Jul 9, 02:50 UTCJul 9, 03:05 UTC15m
2026-07-08 KAL086 JFK → ICN Jul 8, 05:25 UTCJul 8, 20:00 UTC14h 35m
2026-07-07 KAL085 ICN → JFK Jul 7, 11:10 UTCJul 8, 00:50 UTC13h 40m
2026-07-07 KAL908 - Jul 7, 06:50 UTCJul 7, 07:20 UTC30m
2026-07-06 KAL908 - Jul 6, 19:10 UTCJul 7, 05:55 UTC10h 45m
2026-07-06 KAL907 - Jul 6, 04:15 UTCJul 6, 16:25 UTC12h 10m
2026-07-06 KAL907 - Jul 6, 03:05 UTCJul 6, 03:15 UTC10m
2026-07-05 KAL086 JFK → ICN Jul 5, 05:30 UTCJul 5, 19:40 UTC14h 10m
2026-07-04 KAL085 ICN → JFK Jul 4, 10:55 UTCJul 5, 00:30 UTC13h 35m
2026-07-04 KAL908 - Jul 4, 06:25 UTCJul 4, 06:50 UTC25m
2026-07-03 KAL908 - Jul 3, 19:05 UTCJul 4, 05:30 UTC10h 25m
2026-07-03 KAL907 - Jul 3, 03:30 UTCJul 3, 15:45 UTC12h 15m
2026-07-03 KAL907 - Jul 3, 02:20 UTCJul 3, 02:35 UTC15m
2026-07-01 KAL034 ATL → ICN Jul 1, 15:50 UTCJul 2, 06:25 UTC14h 35m
2026-07-01 KAL033 - Jul 1, 00:05 UTCJul 1, 13:15 UTC13h 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 HL7202 page for operator, model, and routing details .

Mode-S 71BA02 frequently asked

What is Mode-S code 71BA02?
71BA02 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7202.
Where is Mode-S 71BA02 registered?
Mode-S code 71BA02 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 71BA02 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BA02, octal 34335002, decimal 7,453,186.
What flights does 71BA02 operate?
Mode-S 71BA02 has broadcast 20 distinct callsigns, including KAL907, KAL908, KAL094, KAL902, KAL093.