Apparatus

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sensors Mode-S transponder

71BA17

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

Currently assigned to HL7217 · BOEING 737 MAX 8

Hex
71BA17
Octal
34335027
Decimal
7,453,207
Country
KR
Tail
HL7217
Type
B38M
Broadcasting now · callsign JNA081 · 13,475 ft
Flights observed
339
Distinct callsigns
20
Country
KR
Last broadcast
6h ago

Current position

71BA17 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71BA17 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
JNA362 - 13 2026-07-14
JNA735 Jin Air 12 2026-06-23
JNA736 - 10 2026-06-24
JNA240 - 10 2026-06-25
JNA239 - 10 2026-06-25
JNA360 - 9 2026-06-22
JNA349 - 9 2026-06-23
JNA242 - 9 2026-07-11
JNA241 - 9 2026-07-10
JNA737 - 8 2026-06-28
JNA359 - 8 2026-06-22
JNA358 - 8 2026-07-12
JNA350 - 8 2026-06-23
JNA347 - 8 2026-07-13
JNA346 - 8 2026-06-22
JNA345 - 8 2026-06-21
JNA234 Jin Air 8 2026-06-02
JNA091 Jin Air 8 2026-06-02
JNA088 - 8 2026-06-22
JNA002 - 8 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JNA362 - Jul 14, 00:25 UTCJul 14, 06:25 UTC6h 0m
2026-07-13 JNA348 - Jul 13, 10:20 UTCJul 13, 11:55 UTC1h 35m
2026-07-13 JNA347 - Jul 13, 07:20 UTCJul 13, 08:40 UTC1h 20m
2026-07-12 JNA358 - Jul 12, 23:40 UTCJul 13, 05:25 UTC5h 45m
2026-07-12 JNA212 - Jul 12, 10:45 UTCJul 12, 12:40 UTC1h 55m
2026-07-12 JNA211 ICN → NRT Jul 12, 07:05 UTCJul 12, 09:00 UTC1h 55m
2026-07-12 JNA204 - Jul 12, 03:05 UTCJul 12, 05:05 UTC2h 0m
2026-07-11 JNA203 - Jul 11, 23:05 UTCJul 12, 01:00 UTC1h 55m
2026-07-11 JNA212 - Jul 11, 10:25 UTCJul 11, 12:20 UTC1h 55m
2026-07-11 JNA211 ICN → NRT Jul 11, 07:00 UTCJul 11, 08:50 UTC1h 50m
2026-07-11 JNA242 KIX → ICN Jul 11, 02:30 UTCJul 11, 03:45 UTC1h 15m
2026-07-10 JNA241 ICN → KIX Jul 10, 23:40 UTCJul 11, 01:00 UTC1h 20m
2026-07-10 JNA996F - Jul 10, 03:00 UTCJul 10, 03:25 UTC25m
2026-06-28 JNA997F - Jun 28, 20:54 UTCJun 28, 22:34 UTC1h 40m
2026-06-28 JNA738 - Jun 28, 09:45 UTCJun 28, 11:55 UTC2h 10m
2026-06-28 JNA737 - Jun 28, 08:00 UTCJun 28, 08:25 UTC25m
2026-06-28 JNA737 - Jun 28, 06:10 UTCJun 28, 06:55 UTC45m
2026-06-28 JNA242 KIX → ICN Jun 28, 02:29 UTCJun 28, 03:50 UTC1h 20m
2026-06-27 JNA241 - Jun 27, 23:34 UTCJun 28, 00:59 UTC1h 25m
2026-06-27 JNA915 ICN → ICN Jun 27, 09:50 UTCJun 27, 19:45 UTC9h 55m
2026-06-27 JNA361 ICN → ICN Jun 27, 00:34 UTCJun 27, 06:15 UTC5h 40m
2026-06-26 JNA010 - Jun 26, 15:10 UTCJun 26, 19:50 UTC4h 40m
2026-06-26 JNA009 ICN → CNX Jun 26, 08:45 UTCJun 26, 13:55 UTC5h 10m
2026-06-26 JNA362 ICN → ICN Jun 26, 00:50 UTCJun 26, 06:39 UTC5h 50m
2026-06-25 JNA240 - Jun 25, 10:35 UTCJun 25, 11:59 UTC1h 25m
2026-06-25 JNA239 - Jun 25, 07:34 UTCJun 25, 08:55 UTC1h 20m
2026-06-25 JNA242 KIX → ICN Jun 25, 02:25 UTCJun 25, 03:54 UTC1h 30m
2026-06-24 JNA241 ICN → KIX Jun 24, 23:45 UTCJun 25, 01:04 UTC1h 20m
2026-06-24 JNA132 BKI → ICN Jun 24, 16:54 UTCJun 24, 21:40 UTC4h 45m
2026-06-24 JNA131 - Jun 24, 10:45 UTCJun 24, 15:29 UTC4h 45m
2026-06-24 JNA736 - Jun 24, 03:00 UTCJun 24, 05:20 UTC2h 20m
2026-06-23 JNA735 ICN → RMQ Jun 23, 23:10 UTCJun 24, 01:09 UTC2h 0m
2026-06-23 JNA350 - Jun 23, 09:49 UTCJun 23, 10:44 UTC55m
2026-06-23 JNA349 - Jun 23, 07:09 UTCJun 23, 07:55 UTC45m
2026-06-23 JNA274 - Jun 23, 03:34 UTCJun 23, 04:35 UTC1h 0m
2026-06-23 JNA273 - Jun 23, 00:54 UTCJun 23, 01:35 UTC40m
2026-06-22 JNA088 ICN → ICN Jun 22, 12:00 UTCJun 22, 22:54 UTC10h 55m
2026-06-22 JNA360 - Jun 22, 08:29 UTCJun 22, 09:45 UTC1h 15m
2026-06-22 JNA359 - Jun 22, 06:00 UTCJun 22, 07:14 UTC1h 15m
2026-06-22 JNA346 - Jun 22, 01:49 UTCJun 22, 03:24 UTC1h 35m
2026-06-21 JNA345 - Jun 21, 23:00 UTCJun 22, 00:10 UTC1h 10m
2026-06-21 JNA348 - Jun 21, 10:25 UTCJun 21, 11:59 UTC1h 35m
2026-06-21 JNA347 - Jun 21, 07:29 UTCJun 21, 08:49 UTC1h 20m
2026-06-20 JNA358 - Jun 20, 23:45 UTCJun 21, 05:54 UTC6h 10m
2026-06-20 JNA044 ICN → ICN Jun 20, 12:19 UTCJun 20, 22:00 UTC9h 40m
2026-06-20 JNA350 - Jun 20, 09:49 UTCJun 20, 10:34 UTC45m
2026-06-20 JNA349 - Jun 20, 07:09 UTCJun 20, 07:59 UTC50m
2026-06-20 JNA736 RMQ → ICN Jun 20, 03:29 UTCJun 20, 05:44 UTC2h 15m
2026-06-19 JNA735 ICN → RMQ Jun 19, 23:34 UTCJun 20, 01:50 UTC2h 15m
2026-06-19 JNA092 PQC → ICN Jun 19, 08:44 UTCJun 19, 20:24 UTC11h 40m

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 HL7217 page for operator, model, and routing details .

Mode-S 71BA17 frequently asked

What is Mode-S code 71BA17?
71BA17 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7217.
Where is Mode-S 71BA17 registered?
Mode-S code 71BA17 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 71BA17 broadcasting right now?
Yes. Mode-S 71BA17 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BA17, octal 34335027, decimal 7,453,207.
What flights does 71BA17 operate?
Mode-S 71BA17 has broadcast 20 distinct callsigns, including JNA362, JNA735, JNA736, JNA240, JNA239.