Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71BF86

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

Currently assigned to HL7786 · BOEING 737-800

Hex
71BF86
Octal
34337606
Decimal
7,454,598
Country
KR
Tail
HL7786
Type
B738
No current signal · last broadcast 9h ago
Flights observed
428
Distinct callsigns
20
Country
KR
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 71BF86.

Country allocation

The ICAO 24-bit address 71BF86 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
JNA713 - 9 2026-06-25
JNA082 - 9 2026-07-07
JNA502 Jin Air 8 2026-06-25
JNA408 - 8 2026-06-23
JNA407 - 8 2026-06-23
JNA081 - 8 2026-07-08
JNA236 - 7 2026-07-07
JNA231 - 7 2026-07-10
JNA202 - 7 2026-07-13
JNA201 - 7 2026-07-13
JNA741 - 6 2026-07-06
JNA714 - 6 2026-06-25
JNA515 - 6 2026-06-20
JNA252 - 6 2026-07-11
JNA222 - 6 2026-07-14
JNA111 - 6 2026-07-03
JNA672 - 5 2026-06-20
JNA654 - 5 2026-06-26
JNA651 - 5 2026-06-26
JNA510 - 5 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JNA312 - Jul 14, 08:40 UTCJul 14, 10:45 UTC2h 5m
2026-07-14 JNA311 - Jul 14, 05:15 UTCJul 14, 07:20 UTC2h 5m
2026-07-14 JNA222 - Jul 14, 02:20 UTCJul 14, 04:00 UTC1h 40m
2026-07-13 JNA201 ICN → NRT Jul 13, 23:00 UTCJul 14, 01:00 UTC2h 0m
2026-07-13 JNA304 - Jul 13, 10:40 UTCJul 13, 12:55 UTC2h 15m
2026-07-13 JNA303 - Jul 13, 06:50 UTCJul 13, 09:10 UTC2h 20m
2026-07-13 JNA202 - Jul 13, 02:40 UTCJul 13, 04:35 UTC1h 55m
2026-07-12 JNA221 PUS → NRT Jul 12, 23:35 UTCJul 13, 01:10 UTC1h 35m
2026-07-12 JNA066 - Jul 12, 18:05 UTCJul 12, 21:25 UTC3h 20m
2026-07-12 JNA037 - Jul 12, 13:05 UTCJul 12, 16:25 UTC3h 20m
2026-07-12 JNA266 - Jul 12, 09:30 UTCJul 12, 10:25 UTC55m
2026-07-12 JNA265 - Jul 12, 07:20 UTCJul 12, 08:10 UTC50m
2026-07-12 JNA736 - Jul 12, 03:15 UTCJul 12, 05:30 UTC2h 15m
2026-07-11 JNA735 - Jul 11, 23:40 UTCJul 12, 01:45 UTC2h 5m
2026-07-11 JNA038 - Jul 11, 18:25 UTCJul 11, 22:01 UTC3h 35m
2026-07-11 JNA065 - Jul 11, 13:35 UTCJul 11, 16:50 UTC3h 15m
2026-07-11 JNA312 - Jul 11, 08:35 UTCJul 11, 10:40 UTC2h 5m
2026-07-11 JNA311 - Jul 11, 05:20 UTCJul 11, 07:30 UTC2h 10m
2026-07-11 JNA252 KIX → PUS Jul 11, 01:50 UTCJul 11, 02:50 UTC1h 0m
2026-07-10 JNA231 - Jul 10, 22:55 UTCJul 11, 00:15 UTC1h 20m
2026-07-10 JNA916 - Jul 10, 09:30 UTCJul 10, 19:20 UTC9h 50m
2026-07-09 JNA002 - Jul 9, 18:10 UTCJul 9, 23:25 UTC5h 15m
2026-07-09 JNA001 - Jul 9, 11:30 UTCJul 9, 16:30 UTC5h 0m
2026-07-08 JNA081 - Jul 8, 12:00 UTCJul 8, 21:35 UTC9h 35m
2026-07-08 JNA360 - Jul 8, 08:35 UTCJul 8, 09:50 UTC1h 15m
2026-07-08 JNA359 - Jul 8, 06:00 UTCJul 8, 07:15 UTC1h 15m
2026-07-07 JNA082 - Jul 7, 11:55 UTCJul 7, 22:00 UTC10h 5m
2026-07-07 JNA236 KIX → ICN Jul 7, 07:20 UTCJul 7, 08:45 UTC1h 25m
2026-07-07 JNA251 PUS → KIX Jul 7, 04:40 UTCJul 7, 05:50 UTC1h 10m
2026-07-07 JNA376 - Jul 7, 02:15 UTCJul 7, 03:20 UTC1h 5m
2026-07-06 JNA375 - Jul 6, 23:30 UTCJul 7, 00:35 UTC1h 5m
2026-07-06 JNA781 PUS → PUS Jul 6, 13:00 UTCJul 6, 21:25 UTC8h 25m
2026-07-06 JNA742 - Jul 6, 08:20 UTCJul 6, 10:15 UTC1h 55m
2026-07-06 JNA741 - Jul 6, 04:50 UTCJul 6, 06:50 UTC2h 0m
2026-07-06 JNA252 - Jul 6, 01:50 UTCJul 6, 03:00 UTC1h 10m
2026-07-05 JNA231 ICN → CTS Jul 5, 22:55 UTCJul 6, 00:20 UTC1h 25m
2026-07-05 JNA238 KIX → ICN Jul 5, 08:50 UTCJul 5, 10:20 UTC1h 30m
2026-07-05 JNA237 - Jul 5, 06:10 UTCJul 5, 07:30 UTC1h 20m
2026-07-04 JNA002 - Jul 4, 18:45 UTCJul 5, 00:00 UTC5h 15m
2026-07-04 JNA001 ICN → BKK Jul 4, 11:30 UTCJul 4, 16:40 UTC5h 10m
2026-07-04 JNA236 - Jul 4, 07:20 UTCJul 4, 08:40 UTC1h 20m
2026-07-04 JNA251 PUS → KIX Jul 4, 05:00 UTCJul 4, 06:00 UTC1h 0m
2026-07-04 JNA292 - Jul 4, 02:10 UTCJul 4, 02:45 UTC35m
2026-07-04 JNA291 - Jul 4, 00:05 UTCJul 4, 00:25 UTC20m
2026-07-03 JNA112 DAD → PUS Jul 3, 22:00 UTCJul 3, 22:20 UTC20m
2026-07-03 JNA111 - Jul 3, 12:25 UTCJul 3, 21:00 UTC8h 35m
2026-07-03 JNA741 - Jul 3, 09:55 UTCJul 3, 10:15 UTC20m
2026-07-03 JNA741 - Jul 3, 08:20 UTCJul 3, 08:45 UTC25m
2026-07-03 JNA741 - Jul 3, 04:55 UTCJul 3, 06:55 UTC2h 0m
2026-07-03 JNA252 - Jul 3, 01:55 UTCJul 3, 03:05 UTC1h 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 HL7786 page for operator, model, and routing details .

Mode-S 71BF86 frequently asked

What is Mode-S code 71BF86?
71BF86 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL7786.
Where is Mode-S 71BF86 registered?
Mode-S code 71BF86 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 71BF86 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71BF86, octal 34337606, decimal 7,454,598.
What flights does 71BF86 operate?
Mode-S 71BF86 has broadcast 20 distinct callsigns, including JNA713, JNA082, JNA502, JNA408, JNA407.