Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71BA05

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

Currently assigned to HL7205 · BOEING 777-300ER

Hex
71BA05
Octal
34335005
Decimal
7,453,189
Country
KR
Tail
HL7205
Type
B77W
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
149
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 71BA05.

Country allocation

The ICAO 24-bit address 71BA05 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
KAL908 Korean Air 12 2026-06-13
KAL902 Korean Air 11 2026-07-25
KAL645 Korean Air 11 2026-07-25
KAL907 - 10 2026-06-13
KAL901 Korean Air 10 2026-07-24
KAL646 Korean Air 10 2026-07-25
KAL035 - 9 2026-06-29
KAL085 Korean Air 8 2026-07-26
KAL036 - 8 2026-06-29
KAL094 - 6 2026-06-19
KAL093 - 6 2026-06-19
KAL086 Korean Air 6 2026-06-26
KAL006 - 6 2026-06-28
KAL005 - 6 2026-06-27
KAL033 - 5 2026-06-22
KAL034 Korean Air 4 2026-06-22
KAL938 Korean Air 3 2026-05-12
KAL937 Korean Air 2 2026-05-11
KAL874 - 2 2026-06-08
KAL788 - 2 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL085 ICN → JFK Jul 26, 11:15 UTCJul 26, 21:15 UTC10h 0m
2026-07-25 KAL646 SIN → ICN Jul 25, 21:15 UTCJul 26, 00:05 UTC2h 50m
2026-07-25 KAL645 PUS → CBO Jul 25, 15:55 UTCJul 25, 16:05 UTC10m
2026-07-25 KAL645 PUS → CBO Jul 25, 10:10 UTCJul 25, 14:45 UTC4h 35m
2026-07-25 KAL902 CDG → ICN Jul 25, 06:10 UTCJul 25, 06:30 UTC20m
2026-07-24 KAL902 CDG → ICN Jul 24, 19:15 UTCJul 25, 05:20 UTC10h 5m
2026-07-24 KAL901 ICN → CDG Jul 24, 04:40 UTCJul 24, 16:45 UTC12h 5m
2026-07-24 KAL901 ICN → CDG Jul 24, 03:30 UTCJul 24, 03:50 UTC20m
2026-07-23 KAL646 SIN → ICN Jul 23, 18:45 UTCJul 24, 00:40 UTC5h 55m
2026-07-23 KAL645 PUS → CBO Jul 23, 10:50 UTCJul 23, 16:25 UTC5h 35m
2026-07-23 KAL700P - Jul 23, 02:05 UTCJul 23, 02:50 UTC45m
2026-06-30 KAL799F - Jun 30, 22:35 UTCJun 30, 23:15 UTC40m
2026-06-29 KAL036 ATL → ICN Jun 29, 17:49 UTCJun 30, 08:05 UTC14h 16m
2026-06-29 KAL035 ICN → ATL Jun 29, 01:55 UTCJun 29, 15:09 UTC13h 15m
2026-06-28 KAL006 LAS → ICN Jun 28, 07:09 UTCJun 28, 19:44 UTC12h 35m
2026-06-27 KAL005 ICN → LAS Jun 27, 12:25 UTCJun 27, 22:45 UTC10h 20m
2026-06-26 KAL086 JFK → ICN Jun 26, 05:05 UTCJun 26, 19:50 UTC14h 45m
2026-06-25 KAL085 ICN → JFK Jun 25, 10:50 UTCJun 26, 00:39 UTC13h 50m
2026-06-24 KAL018 - Jun 24, 19:55 UTCJun 25, 08:20 UTC12h 25m
2026-06-24 KAL017 - Jun 24, 05:59 UTCJun 24, 16:14 UTC10h 15m
2026-06-24 KAL788 - Jun 24, 01:55 UTCJun 24, 02:54 UTC1h 0m
2026-06-23 KAL787 ICN → FUK Jun 23, 23:24 UTCJun 24, 00:05 UTC40m
2026-06-22 KAL034 ATL → ICN Jun 22, 15:54 UTCJun 23, 06:29 UTC14h 35m
2026-06-22 KAL033 ICN → ATL Jun 22, 00:10 UTCJun 22, 13:14 UTC13h 5m
2026-06-21 KAL788 - Jun 21, 02:04 UTCJun 21, 03:00 UTC55m
2026-06-20 KAL787 ICN → FUK Jun 20, 23:25 UTCJun 21, 00:29 UTC1h 5m
2026-06-19 KAL094 IAD → ICN Jun 19, 17:44 UTCJun 20, 07:34 UTC13h 50m
2026-06-19 KAL093 ICN → IAD Jun 19, 01:45 UTCJun 19, 14:59 UTC13h 15m
2026-06-18 KAL086 JFK → ICN Jun 18, 05:10 UTCJun 18, 19:15 UTC14h 5m
2026-06-17 KAL085 ICN → JFK Jun 17, 10:50 UTCJun 18, 00:25 UTC13h 35m
2026-06-16 KAL034 ATL → ICN Jun 16, 15:55 UTCJun 17, 07:00 UTC15h 6m
2026-06-16 KAL033 ICN → ATL Jun 16, 00:00 UTCJun 16, 12:55 UTC12h 55m
2026-06-15 KAL006 LAS → ICN Jun 15, 07:15 UTCJun 15, 19:25 UTC12h 10m
2026-06-14 KAL005 ICN → LAS Jun 14, 12:25 UTCJun 14, 22:55 UTC10h 30m
2026-06-13 KAL908 LHR → ICN Jun 13, 18:40 UTCJun 14, 06:25 UTC11h 45m
2026-06-13 KAL907 - Jun 13, 02:30 UTCJun 13, 15:55 UTC13h 24m
2026-06-10 KAL094 IAD → ICN Jun 10, 18:45 UTCJun 11, 09:25 UTC14h 40m
2026-06-10 KAL093 ICN → IAD Jun 10, 02:00 UTCJun 10, 14:40 UTC12h 40m
2026-06-09 KAL622 MNL → ICN Jun 9, 04:40 UTCJun 9, 07:50 UTC3h 10m
2026-06-08 KAL621 ICN → MNL Jun 8, 23:10 UTCJun 9, 02:40 UTC3h 30m
2026-06-08 KAL874 - Jun 8, 07:15 UTCJun 8, 07:35 UTC20m
2026-06-08 KAL873 - Jun 8, 04:35 UTCJun 8, 04:50 UTC15m
2026-06-06 KAL094 IAD → ICN Jun 6, 17:54 UTCJun 7, 08:30 UTC14h 35m
2026-06-06 KAL093 ICN → IAD Jun 6, 01:40 UTCJun 6, 14:50 UTC13h 10m
2026-06-05 KAL006 LAS → ICN Jun 5, 07:00 UTCJun 5, 19:15 UTC12h 15m
2026-06-04 KAL005 ICN → LAS Jun 4, 12:10 UTCJun 4, 22:30 UTC10h 20m
2026-06-03 KAL094 IAD → ICN Jun 3, 18:00 UTCJun 4, 08:05 UTC14h 5m
2026-06-03 KAL093 ICN → IAD Jun 3, 01:50 UTCJun 3, 15:25 UTC13h 35m
2026-06-01 KAL036 ATL → ICN Jun 1, 17:50 UTCJun 2, 08:05 UTC14h 15m
2026-06-01 KAL035 ICN → ATL Jun 1, 02:10 UTCJun 1, 15:20 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 HL7205 page for operator, model, and routing details .

Mode-S 71BA05 frequently asked

What is Mode-S code 71BA05?
71BA05 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7205.
Where is Mode-S 71BA05 registered?
Mode-S code 71BA05 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 71BA05 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BA05, octal 34335005, decimal 7,453,189.
What flights does 71BA05 operate?
Mode-S 71BA05 has broadcast 20 distinct callsigns, including KAL908, KAL902, KAL645, KAL907, KAL901.