Apparatus

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sensors Mode-S transponder

71C334

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

Currently assigned to HL8334 · BOEING 737-800

Hex
71C334
Octal
34341464
Decimal
7,455,540
Country
KR
Tail
HL8334
Type
B738
Transponder active on ground
Flights observed
429
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 71C334.

Country allocation

The ICAO 24-bit address 71C334 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
JJA1392 Jeju Air 82 2026-07-26
JJA1394 Jeju Air 81 2026-07-26
JJA1391 Jeju Air 79 2026-07-25
JJA1393 Jeju Air 77 2026-07-26
JJA3212 Jeju Air 16 2026-07-26
JJA8504 - 10 2026-07-20
JJA8503 Jeju Air 9 2026-07-20
JJA2211 Jeju Air 9 2026-05-18
JJA2107 Jeju Air 7 2026-06-03
JJA2108 Jeju Air 6 2026-06-03
JJA3211 Jeju Air 4 2026-07-19
JJA1472 Jeju Air 4 2026-06-30
JJA1471 Jeju Air 4 2026-06-30
JJA2212 Jeju Air 3 2026-05-13
JJA1876 Jeju Air 3 2026-05-20
JJA1875 Jeju Air 3 2026-05-20
JJA1109 Jeju Air 3 2026-05-20
JJA6014 Jeju Air 2 2026-04-15
JJA6013 Jeju Air 2 2026-04-15
JJA2126 - 2 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JJA3212 SPN → ICN Jul 26, 11:30 UTCJul 26, 21:30 UTC10h 0m
2026-07-26 JJA1394 KIX → ICN Jul 26, 08:05 UTCJul 26, 09:30 UTC1h 25m
2026-07-26 JJA1393 ICN → KIX Jul 26, 05:20 UTCJul 26, 06:45 UTC1h 26m
2026-07-26 JJA1392 KIX → ICN Jul 26, 02:10 UTCJul 26, 03:35 UTC1h 25m
2026-07-25 JJA1391 ICN → KIX Jul 25, 23:15 UTCJul 26, 00:35 UTC1h 20m
2026-07-25 JJA3212 SPN → ICN Jul 25, 11:45 UTCJul 25, 21:25 UTC9h 40m
2026-07-25 JJA1394 KIX → ICN Jul 25, 08:15 UTCJul 25, 09:40 UTC1h 25m
2026-07-25 JJA1393 ICN → KIX Jul 25, 05:35 UTCJul 25, 07:05 UTC1h 30m
2026-07-25 JJA1392 KIX → ICN Jul 25, 02:00 UTCJul 25, 03:25 UTC1h 25m
2026-07-24 JJA1391 ICN → KIX Jul 24, 23:10 UTCJul 25, 00:30 UTC1h 20m
2026-07-24 JJA3212 SPN → ICN Jul 24, 11:50 UTCJul 24, 21:40 UTC9h 50m
2026-07-24 JJA1394 KIX → ICN Jul 24, 08:10 UTCJul 24, 09:35 UTC1h 25m
2026-07-24 JJA1393 ICN → KIX Jul 24, 05:25 UTCJul 24, 06:55 UTC1h 30m
2026-07-24 JJA1392 KIX → ICN Jul 24, 02:00 UTCJul 24, 03:25 UTC1h 25m
2026-07-23 JJA1391 ICN → KIX Jul 23, 23:10 UTCJul 24, 00:30 UTC1h 20m
2026-07-23 JJA3212 SPN → ICN Jul 23, 11:35 UTCJul 23, 21:25 UTC9h 50m
2026-07-23 JJA1394 KIX → ICN Jul 23, 08:10 UTCJul 23, 09:30 UTC1h 20m
2026-07-23 JJA1393 ICN → KIX Jul 23, 05:10 UTCJul 23, 06:35 UTC1h 25m
2026-07-23 JJA1392 KIX → ICN Jul 23, 02:00 UTCJul 23, 03:25 UTC1h 25m
2026-07-22 JJA1391 ICN → KIX Jul 22, 23:15 UTCJul 23, 00:35 UTC1h 20m
2026-07-22 JJA3212 SPN → ICN Jul 22, 11:40 UTCJul 22, 21:20 UTC9h 40m
2026-07-22 JJA1392 KIX → ICN Jul 22, 02:55 UTCJul 22, 04:20 UTC1h 25m
2026-07-21 JJA1391 ICN → KIX Jul 21, 23:10 UTCJul 22, 00:45 UTC1h 35m
2026-07-21 JJA1392 KIX → ICN Jul 21, 02:50 UTCJul 21, 04:10 UTC1h 20m
2026-07-20 JJA1391 ICN → KIX Jul 20, 23:10 UTCJul 21, 00:40 UTC1h 30m
2026-07-20 JJA8504 - Jul 20, 10:05 UTCJul 20, 10:30 UTC25m
2026-07-20 JJA8503 ICN → WEH Jul 20, 07:30 UTCJul 20, 07:50 UTC20m
2026-07-20 JJA1392 KIX → ICN Jul 20, 02:55 UTCJul 20, 04:10 UTC1h 15m
2026-07-19 JJA1391 - Jul 19, 23:15 UTCJul 20, 00:35 UTC1h 20m
2026-07-19 JJA3211 ICN → SPN Jul 19, 11:35 UTCJul 19, 21:25 UTC9h 50m
2026-07-19 JJA1394 KIX → ICN Jul 19, 08:05 UTCJul 19, 09:25 UTC1h 20m
2026-07-19 JJA1393 ICN → KIX Jul 19, 05:20 UTCJul 19, 06:50 UTC1h 30m
2026-07-19 JJA1392 KIX → ICN Jul 19, 02:00 UTCJul 19, 03:20 UTC1h 20m
2026-07-18 JJA1391 ICN → KIX Jul 18, 23:10 UTCJul 19, 00:30 UTC1h 20m
2026-07-18 JJA8504 - Jul 18, 09:50 UTCJul 18, 10:15 UTC25m
2026-07-18 JJA8503 - Jul 18, 07:20 UTCJul 18, 07:40 UTC20m
2026-07-18 JJA1392 KIX → ICN Jul 18, 01:54 UTCJul 18, 03:10 UTC1h 16m
2026-07-17 JJA1391 ICN → KIX Jul 17, 23:00 UTCJul 18, 00:25 UTC1h 25m
2026-07-17 JJA1394 KIX → ICN Jul 17, 08:10 UTCJul 17, 09:30 UTC1h 20m
2026-07-17 JJA1393 - Jul 17, 05:25 UTCJul 17, 06:54 UTC1h 30m
2026-07-17 JJA1392 KIX → ICN Jul 17, 02:05 UTCJul 17, 03:30 UTC1h 25m
2026-07-16 JJA1391 ICN → KIX Jul 16, 23:05 UTCJul 17, 00:35 UTC1h 30m
2026-07-16 JJA3212 ICN → ICN Jul 16, 11:34 UTCJul 16, 21:40 UTC10h 5m
2026-07-16 JJA1394 KIX → ICN Jul 16, 08:10 UTCJul 16, 09:30 UTC1h 20m
2026-07-16 JJA1393 ICN → KIX Jul 16, 05:20 UTCJul 16, 06:45 UTC1h 25m
2026-07-16 JJA1392 - Jul 16, 02:10 UTCJul 16, 03:30 UTC1h 20m
2026-07-15 JJA1391 ICN → KIX Jul 15, 23:10 UTCJul 16, 00:30 UTC1h 20m
2026-07-15 JJA3212 - Jul 15, 11:40 UTCJul 15, 21:30 UTC9h 50m
2026-07-15 JJA1394 KIX → ICN Jul 15, 08:05 UTCJul 15, 09:20 UTC1h 15m
2026-07-15 JJA1393 ICN → KIX Jul 15, 05:20 UTCJul 15, 06:40 UTC1h 20m

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 HL8334 page for operator, model, and routing details .

Mode-S 71C334 frequently asked

What is Mode-S code 71C334?
71C334 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8334.
Where is Mode-S 71C334 registered?
Mode-S code 71C334 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 71C334 broadcasting right now?
Mode-S 71C334 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C334, octal 34341464, decimal 7,455,540.
What flights does 71C334 operate?
Mode-S 71C334 has broadcast 20 distinct callsigns, including JJA1392, JJA1394, JJA1391, JJA1393, JJA3212.