Apparatus

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sensors Mode-S transponder

71C064

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

Currently assigned to HL8064 · BOEING 737-800

Hex
71C064
Octal
34340144
Decimal
7,454,820
Country
KR
Tail
HL8064
Type
B738
No current signal · last broadcast 1h ago
Flights observed
251
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C064.

Country allocation

The ICAO 24-bit address 71C064 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
JJA122 Jeju Air 9 2026-05-17
JJA131 Jeju Air 8 2026-05-16
JJA117 Jeju Air 7 2026-05-17
JJA108 Jeju Air 7 2026-05-17
JJA142 Jeju Air 5 2026-05-21
JJA139 Jeju Air 5 2026-05-21
JJA130 Jeju Air 5 2026-05-20
JJA129 Jeju Air 5 2026-05-21
JJA128 Jeju Air 5 2026-05-21
JJA119 Jeju Air 5 2026-05-20
JJA110 Jeju Air 5 2026-05-20
JJA711 Jeju Air 4 2026-05-16
JJA706 Jeju Air 4 2026-05-15
JJA301 Jeju Air 4 2026-05-14
JJA228 Jeju Air 4 2026-05-05
JJA226 Jeju Air 4 2026-05-22
JJA225 Jeju Air 4 2026-05-22
JJA212 Jeju Air 4 2026-05-22
JJA211 Jeju Air 4 2026-05-23
JJA136 Jeju Air 4 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JJA1612 HIJ → ICN May 30, 01:30 UTCMay 30, 02:50 UTC1h 20m
2026-05-29 JJA1611 ICN → HIJ May 29, 22:55 UTCMay 30, 00:00 UTC1h 5m
2026-05-29 JJA1704 MYJ → ICN May 29, 06:50 UTCMay 29, 08:10 UTC1h 20m
2026-05-29 JJA1703 ICN → MYJ May 29, 04:25 UTCMay 29, 05:25 UTC1h 0m
2026-05-29 JJA1612 HIJ → ICN May 29, 01:40 UTCMay 29, 02:55 UTC1h 15m
2026-05-28 JJA1611 ICN → HIJ May 28, 22:55 UTCMay 28, 23:55 UTC1h 0m
2026-05-28 JJA2104 MNL → ICN May 28, 15:45 UTCMay 28, 19:05 UTC3h 20m
2026-05-28 JJA2103 ICN → MNL May 28, 10:20 UTCMay 28, 13:50 UTC3h 30m
2026-05-28 JJA1704 MYJ → ICN May 28, 07:05 UTCMay 28, 08:20 UTC1h 15m
2026-05-28 JJA1703 ICN → MYJ May 28, 04:25 UTCMay 28, 05:25 UTC1h 0m
2026-05-28 JJA1612 HIJ → ICN May 28, 01:30 UTCMay 28, 02:45 UTC1h 15m
2026-05-27 JJA1611 ICN → HIJ May 27, 23:00 UTCMay 28, 00:05 UTC1h 5m
2026-05-27 JJA1604 FSZ → ICN May 27, 09:35 UTCMay 27, 11:15 UTC1h 40m
2026-05-27 JJA1603 ICN → FSZ May 27, 06:15 UTCMay 27, 07:45 UTC1h 30m
2026-05-27 JJA1304 KIX → ICN May 27, 03:09 UTCMay 27, 04:34 UTC1h 25m
2026-05-27 JJA1303 ICN → KIX May 27, 00:25 UTCMay 27, 01:49 UTC1h 25m
2026-05-26 JJA6002 MFM → ICN May 26, 05:54 UTCMay 26, 09:15 UTC3h 20m
2026-05-26 JJA6001 ICN → MFM May 26, 01:10 UTCMay 26, 04:20 UTC3h 10m
2026-05-25 JJA6002 MFM → ICN May 25, 07:00 UTCMay 25, 09:30 UTC2h 30m
2026-05-25 JJA6002 MFM → ICN May 25, 06:05 UTCMay 25, 06:30 UTC25m
2026-05-25 JJA6001 ICN → MFM May 25, 02:40 UTCMay 25, 04:15 UTC1h 35m
2026-05-24 JJA2202 HAN → ICN May 24, 11:50 UTCMay 24, 21:45 UTC9h 55m
2026-05-24 JJA1504 CTS → ICN May 24, 07:10 UTCMay 24, 09:50 UTC2h 40m
2026-05-24 JJA1503 ICN → CTS May 24, 03:25 UTCMay 24, 05:40 UTC2h 15m
2026-05-24 JJA1702 MYJ → ICN May 24, 00:35 UTCMay 24, 01:50 UTC1h 15m
2026-05-23 JJA1701 ICN → MYJ May 23, 22:10 UTCMay 23, 23:15 UTC1h 5m
2026-05-23 JJA2104 MNL → ICN May 23, 15:55 UTCMay 23, 19:20 UTC3h 25m
2026-05-23 JJA2103 ICN → MNL May 23, 10:25 UTCMay 23, 14:10 UTC3h 45m
2026-05-23 JJA166 CJU → ICN May 23, 07:35 UTCMay 23, 08:15 UTC40m
2026-05-23 JJA155 GMP → CJU May 23, 05:15 UTCMay 23, 05:40 UTC25m
2026-05-23 JJA116 CJU → GMP May 23, 03:20 UTCMay 23, 03:55 UTC35m
2026-05-23 JJA211 PUS → GMP May 23, 01:20 UTCMay 23, 01:40 UTC20m
2026-05-22 JJA212 CJU → CJJ May 22, 23:50 UTCMay 23, 00:10 UTC20m
2026-05-22 JJA101 GMP → CJU May 22, 21:25 UTCMay 22, 21:55 UTC30m
2026-05-22 JJA136 CJU → GMP May 22, 12:40 UTCMay 22, 13:10 UTC30m
2026-05-22 JJA225 CJJ → CJU May 22, 10:35 UTCMay 22, 10:50 UTC15m
2026-05-22 JJA226 CJU → CJJ May 22, 09:15 UTCMay 22, 09:40 UTC25m
2026-05-22 JJA127 GMP → CJU May 22, 06:15 UTCMay 22, 06:40 UTC25m
2026-05-22 JJA116 CJU → GMP May 22, 03:30 UTCMay 22, 04:05 UTC35m
2026-05-22 JJA211 PUS → GMP May 22, 01:20 UTCMay 22, 01:40 UTC20m
2026-05-21 JJA212 CJU → CJJ May 21, 23:40 UTCMay 22, 00:05 UTC25m
2026-05-21 JJA101 GMP → CJU May 21, 21:30 UTCMay 21, 21:55 UTC25m
2026-05-21 JJA142 CJU → GMP May 21, 13:01 UTCMay 21, 13:30 UTC30m
2026-05-21 JJA139 GMP → CJU May 21, 10:55 UTCMay 21, 11:20 UTC25m
2026-05-21 JJA128 CJU → GMP May 21, 09:30 UTCMay 21, 10:00 UTC30m
2026-05-21 JJA129 GMP → CJU May 21, 07:10 UTCMay 21, 07:35 UTC25m
2026-05-21 JJA120 CJU → GMP May 21, 05:25 UTCMay 21, 06:05 UTC40m
2026-05-21 JJA115 GMP → CJU May 21, 03:10 UTCMay 21, 03:35 UTC25m
2026-05-21 JJA106 CJU → GMP May 21, 01:35 UTCMay 21, 02:15 UTC40m
2026-05-20 JJA107 GMP → CJU May 20, 23:00 UTCMay 20, 23:25 UTC25m

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 HL8064 page for operator, model, and routing details .

Mode-S 71C064 frequently asked

What is Mode-S code 71C064?
71C064 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8064.
Where is Mode-S 71C064 registered?
Mode-S code 71C064 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 71C064 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C064, octal 34340144, decimal 7,454,820.
What flights does 71C064 operate?
Mode-S 71C064 has broadcast 20 distinct callsigns, including JJA122, JJA131, JJA117, JJA108, JJA142.