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 Jul 26, 21:40 UTC
Flights observed
417
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:40 UTC

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
JJA6002 - 9 2026-07-23
JJA122 Jeju Air 9 2026-05-17
JJA6001 Jeju Air 8 2026-07-23
JJA131 Jeju Air 8 2026-05-16
JJA117 Jeju Air 7 2026-05-17
JJA108 Jeju Air 7 2026-05-17
JJA1702 Jeju Air 6 2026-07-25
JJA1701 Jeju Air 6 2026-07-24
JJA1612 Jeju Air 6 2026-07-22
JJA1611 Jeju Air 6 2026-07-21
JJA2202 - 5 2026-07-15
JJA2126 - 5 2026-07-22
JJA2104 Jeju Air 5 2026-07-24
JJA2103 Jeju Air 5 2026-07-24
JJA1704 Jeju Air 5 2026-07-24
JJA1703 Jeju Air 5 2026-07-24
JJA1604 - 5 2026-07-16
JJA1603 - 5 2026-07-16
JJA142 Jeju Air 5 2026-05-21
JJA1408 Jeju Air 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JJA2604 BKI → ICN Jul 26, 16:40 UTCJul 26, 21:40 UTC5h 0m
2026-07-26 JJA2603 ICN → BKI Jul 26, 10:35 UTCJul 26, 15:15 UTC4h 40m
2026-07-26 JJA1402 FUK → ICN Jul 26, 00:05 UTCJul 26, 01:05 UTC1h 0m
2026-07-25 JJA1401 ICN → FUK Jul 25, 21:45 UTCJul 25, 22:25 UTC40m
2026-07-25 JJA2174 CRK → ICN Jul 25, 16:35 UTCJul 25, 20:00 UTC3h 25m
2026-07-25 JJA2173 ICN → CRK Jul 25, 12:00 UTCJul 25, 15:10 UTC3h 10m
2026-07-25 JJA1504 CTS → ICN Jul 25, 07:10 UTCJul 25, 09:35 UTC2h 25m
2026-07-25 JJA1503 ICN → CTS Jul 25, 03:30 UTCJul 25, 05:50 UTC2h 20m
2026-07-25 JJA1702 MYJ → ICN Jul 25, 00:40 UTCJul 25, 01:50 UTC1h 10m
2026-07-24 JJA1701 ICN → MYJ Jul 24, 22:15 UTCJul 24, 23:20 UTC1h 5m
2026-07-24 JJA2104 MNL → ICN Jul 24, 16:00 UTCJul 24, 19:30 UTC3h 30m
2026-07-24 JJA2103 ICN → MNL Jul 24, 10:25 UTCJul 24, 13:50 UTC3h 25m
2026-07-24 JJA1704 MYJ → ICN Jul 24, 06:55 UTCJul 24, 08:05 UTC1h 10m
2026-07-24 JJA1703 ICN → MYJ Jul 24, 04:35 UTCJul 24, 05:35 UTC1h 0m
2026-07-24 JJA1602 FSZ → ICN Jul 24, 01:10 UTCJul 24, 02:50 UTC1h 40m
2026-07-23 JJA1601 ICN → FSZ Jul 23, 22:20 UTCJul 23, 23:55 UTC1h 35m
2026-07-23 JJA2174 CRK → ICN Jul 23, 16:55 UTCJul 23, 20:20 UTC3h 25m
2026-07-23 JJA2173 ICN → CRK Jul 23, 12:05 UTCJul 23, 15:35 UTC3h 30m
2026-07-23 JJA6002 - Jul 23, 06:10 UTCJul 23, 09:25 UTC3h 15m
2026-07-23 JJA6001 ICN → MFM Jul 23, 01:10 UTCJul 23, 04:10 UTC3h 0m
2026-07-22 JJA2126 - Jul 22, 13:05 UTCJul 22, 23:00 UTC9h 55m
2026-07-22 JJA1621 ICN → UKB Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-22 JJA1612 HIJ → ICN Jul 22, 02:35 UTCJul 22, 03:45 UTC1h 10m
2026-07-21 JJA1611 ICN → HIJ Jul 21, 23:10 UTCJul 22, 00:15 UTC1h 5m
2026-07-21 JJA1408 FUK → ICN Jul 21, 11:20 UTCJul 21, 12:25 UTC1h 5m
2026-07-21 JJA1407 ICN → FUK Jul 21, 08:40 UTCJul 21, 09:50 UTC1h 10m
2026-07-21 JJA1102 ICN → NRT Jul 21, 04:30 UTCJul 21, 06:30 UTC2h 0m
2026-07-20 JJA1101 ICN → NRT Jul 20, 23:30 UTCJul 21, 01:25 UTC1h 54m
2026-07-20 JJA1110 NRT → ICN Jul 20, 11:25 UTCJul 20, 13:35 UTC2h 10m
2026-07-20 JJA1109 ICN → NRT Jul 20, 07:45 UTCJul 20, 09:50 UTC2h 5m
2026-07-20 JJA1102 ICN → NRT Jul 20, 03:50 UTCJul 20, 05:50 UTC2h 0m
2026-07-19 JJA1101 - Jul 19, 23:30 UTCJul 20, 01:30 UTC2h 0m
2026-07-19 JJA1110 NRT → ICN Jul 19, 11:15 UTCJul 19, 13:10 UTC1h 55m
2026-07-19 JJA1109 - Jul 19, 07:50 UTCJul 19, 09:45 UTC1h 55m
2026-07-19 JJA8906 HRB → ICN Jul 19, 05:15 UTCJul 19, 05:40 UTC25m
2026-07-19 JJA8905 - Jul 19, 00:20 UTCJul 19, 00:50 UTC30m
2026-07-18 JJA2126 - Jul 18, 12:35 UTCJul 18, 22:45 UTC10h 10m
2026-07-18 JJA1172 NRT → ICN Jul 18, 08:35 UTCJul 18, 10:30 UTC1h 55m
2026-07-18 JJA1171 ICN → NRT Jul 18, 04:50 UTCJul 18, 06:50 UTC2h 0m
2026-07-18 JJA1282 NGO → ICN Jul 18, 01:34 UTCJul 18, 02:55 UTC1h 21m
2026-07-17 JJA1281 ICN → NGO Jul 17, 22:40 UTCJul 18, 00:00 UTC1h 20m
2026-07-17 JJA8904 - Jul 17, 12:45 UTCJul 17, 13:10 UTC25m
2026-07-17 JJA8903 - Jul 17, 07:14 UTCJul 17, 07:35 UTC20m
2026-07-17 JJA8906 HRB → ICN Jul 17, 05:15 UTCJul 17, 05:39 UTC25m
2026-07-17 JJA8905 - Jul 17, 00:30 UTCJul 17, 01:25 UTC55m
2026-07-16 JJA2126 ICN → ICN Jul 16, 12:49 UTCJul 16, 22:59 UTC10h 10m
2026-07-16 JJA1604 - Jul 16, 09:20 UTCJul 16, 10:55 UTC1h 35m
2026-07-16 JJA1603 - Jul 16, 06:20 UTCJul 16, 07:55 UTC1h 35m
2026-07-16 JJA1772 - Jul 16, 02:25 UTCJul 16, 03:35 UTC1h 10m
2026-07-16 JJA1771 - Jul 16, 00:00 UTCJul 16, 01:00 UTC1h 0m

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 Jul 26, 21:40 UTC.
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 JJA6002, JJA122, JJA6001, JJA131, JJA117.