Apparatus

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sensors Mode-S transponder

71C061

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

Currently assigned to HL8061 · BOEING 737-800

Hex
71C061
Octal
34340141
Decimal
7,454,817
Country
KR
Tail
HL8061
Type
B738
No current signal · last broadcast 27m ago
Flights observed
241
Distinct callsigns
20
Country
KR
Last broadcast
27m ago

Last known position

Most recent position reported by Mode-S 71C061.

Country allocation

The ICAO 24-bit address 71C061 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
JJA141 Jeju Air 7 2026-05-27
JJA132 Jeju Air 6 2026-05-27
JJA123 Jeju Air 6 2026-05-25
JJA102 Jeju Air 6 2026-05-27
JJA142 Jeju Air 5 2026-05-29
JJA139 Jeju Air 5 2026-05-29
JJA130 Jeju Air 5 2026-05-23
JJA129 Jeju Air 5 2026-05-29
JJA128 Jeju Air 5 2026-05-29
JJA119 Jeju Air 5 2026-05-23
JJA101 Jeju Air 5 2026-05-29
JJA702 Jeju Air 4 2026-05-23
JJA2552 Jeju Air 4 2026-05-09
JJA2551 Jeju Air 4 2026-05-09
JJA2158 - 4 2026-05-21
JJA212 Jeju Air 4 2026-05-29
JJA211 Jeju Air 4 2026-05-30
JJA1354 Jeju Air 4 2026-05-05
JJA120 Jeju Air 4 2026-05-24
JJA116 Jeju Air 4 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JJA116 CJU → GMP May 30, 03:20 UTCMay 30, 04:00 UTC40m
2026-05-30 JJA211 PUS → GMP May 30, 01:15 UTCMay 30, 01:30 UTC15m
2026-05-29 JJA212 CJU → CJJ May 29, 23:40 UTCMay 30, 00:05 UTC25m
2026-05-29 JJA101 GMP → CJU May 29, 21:25 UTCMay 29, 21:50 UTC25m
2026-05-29 JJA142 CJU → GMP May 29, 13:05 UTCMay 29, 13:40 UTC35m
2026-05-29 JJA139 GMP → CJU May 29, 10:45 UTCMay 29, 11:05 UTC20m
2026-05-29 JJA128 CJU → GMP May 29, 09:10 UTCMay 29, 09:40 UTC30m
2026-05-29 JJA129 GMP → CJU May 29, 06:45 UTCMay 29, 07:10 UTC25m
2026-05-29 JJA116 CJU → GMP May 29, 03:30 UTCMay 29, 04:00 UTC30m
2026-05-29 JJA211 PUS → GMP May 29, 01:15 UTCMay 29, 01:30 UTC15m
2026-05-28 JJA212 CJU → CJJ May 28, 23:50 UTCMay 29, 00:05 UTC15m
2026-05-28 JJA101 GMP → CJU May 28, 21:30 UTCMay 28, 21:55 UTC25m
2026-05-28 JJA140 CJU → GMP May 28, 12:50 UTCMay 28, 13:20 UTC30m
2026-05-28 JJA137 GMP → CJU May 28, 10:30 UTCMay 28, 10:55 UTC25m
2026-05-28 JJA6124 KHH → GMP May 28, 05:15 UTCMay 28, 07:45 UTC2h 30m
2026-05-28 JJA6123 GMP → KHH May 28, 00:55 UTCMay 28, 03:35 UTC2h 40m
2026-05-27 JJA102 CJU → GMP May 27, 22:45 UTCMay 27, 23:15 UTC30m
2026-05-27 JJA8134 - May 27, 18:55 UTCMay 27, 20:15 UTC1h 20m
2026-05-27 JJA8133 - May 27, 14:00 UTCMay 27, 14:20 UTC20m
2026-05-27 JJA141 GMP → CJU May 27, 11:35 UTCMay 27, 12:00 UTC25m
2026-05-27 JJA132 CJU → GMP May 27, 10:10 UTCMay 27, 10:35 UTC25m
2026-05-27 JJA133 GMP → CJU May 27, 08:00 UTCMay 27, 08:25 UTC25m
2026-05-27 JJA124 CJU → GMP May 27, 06:29 UTCMay 27, 07:05 UTC36m
2026-05-27 JJA121 GMP → CJU May 27, 04:24 UTCMay 27, 04:49 UTC25m
2026-05-27 JJA112 CJU → GMP May 27, 02:49 UTCMay 27, 03:24 UTC35m
2026-05-27 JJA111 GMP → CJU May 27, 00:34 UTCMay 27, 00:59 UTC25m
2026-05-26 JJA102 CJU → GMP May 26, 22:50 UTCMay 26, 23:25 UTC35m
2026-05-26 JJA141 GMP → CJU May 26, 11:44 UTCMay 26, 12:10 UTC25m
2026-05-26 JJA132 CJU → GMP May 26, 10:14 UTCMay 26, 10:50 UTC35m
2026-05-26 JJA1352 KIX → PUS May 26, 01:44 UTCMay 26, 02:19 UTC35m
2026-05-25 JJA1351 PUS → KIX May 25, 23:35 UTCMay 26, 00:14 UTC40m
2026-05-25 JJA123 GMP → CJU May 25, 04:30 UTCMay 25, 04:55 UTC25m
2026-05-24 JJA142 CJU → GMP May 24, 13:05 UTCMay 24, 13:30 UTC25m
2026-05-24 JJA139 GMP → CJU May 24, 10:40 UTCMay 24, 11:05 UTC25m
2026-05-24 JJA128 CJU → GMP May 24, 09:10 UTCMay 24, 09:40 UTC30m
2026-05-24 JJA129 GMP → CJU May 24, 06:45 UTCMay 24, 07:10 UTC25m
2026-05-24 JJA120 CJU → GMP May 24, 04:55 UTCMay 24, 05:25 UTC30m
2026-05-24 JJA115 GMP → CJU May 24, 02:45 UTCMay 24, 03:10 UTC25m
2026-05-23 JJA102 CJU → GMP May 23, 22:45 UTCMay 23, 23:20 UTC35m
2026-05-23 JJA141 GMP → CJU May 23, 12:05 UTCMay 23, 12:30 UTC25m
2026-05-23 JJA130 CJU → GMP May 23, 09:15 UTCMay 23, 09:45 UTC30m
2026-05-23 JJA702 CJU → TAE May 23, 06:00 UTCMay 23, 06:15 UTC15m
2026-05-23 JJA119 GMP → CJU May 23, 03:45 UTCMay 23, 04:10 UTC25m
2026-05-23 JJA110 CJU → GMP May 23, 02:10 UTCMay 23, 02:45 UTC34m
2026-05-22 JJA1162 NRT → PUS May 22, 07:15 UTCMay 22, 08:25 UTC1h 10m
2026-05-22 JJA1161 PUS → NRT May 22, 01:40 UTCMay 22, 05:40 UTC4h 0m
2026-05-21 JJA2158 - May 21, 14:20 UTCMay 22, 00:20 UTC10h 0m
2026-05-21 JJA123 GMP → CJU May 21, 04:35 UTCMay 21, 04:55 UTC20m
2026-05-20 JJA186 CJU → GMP May 20, 10:35 UTCMay 20, 11:10 UTC35m
2026-05-20 JJA8136 PKX → CJU May 20, 03:30 UTCMay 20, 07:55 UTC4h 26m

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 HL8061 page for operator, model, and routing details .

Mode-S 71C061 frequently asked

What is Mode-S code 71C061?
71C061 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8061.
Where is Mode-S 71C061 registered?
Mode-S code 71C061 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 71C061 broadcasting right now?
No active broadcast right now. Last signal was 27m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C061, octal 34340141, decimal 7,454,817.
What flights does 71C061 operate?
Mode-S 71C061 has broadcast 20 distinct callsigns, including JJA141, JJA132, JJA123, JJA102, JJA142.