Apparatus

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sensors Mode-S transponder

71C089

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

Currently assigned to HL8089 · BOEING 737-800

Hex
71C089
Octal
34340211
Decimal
7,454,857
Country
KR
Tail
HL8089
Type
B738
No current signal · last broadcast Jul 26, 13:05 UTC
Flights observed
585
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 13:05 UTC

Last known position

Most recent position reported by Mode-S 71C089.

Country allocation

The ICAO 24-bit address 71C089 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
JJA6256 - 14 2026-07-08
JJA1151 Jeju Air 12 2026-07-07
JJA214 - 10 2026-07-10
JJA213 - 10 2026-07-10
JJA119 Jeju Air 10 2026-07-22
JJA110 Jeju Air 10 2026-07-22
JJA6154 - 9 2026-06-23
JJA6152 Jeju Air 9 2026-07-21
JJA130 - 9 2026-07-16
JJA129 Jeju Air 9 2026-07-23
JJA128 Jeju Air 9 2026-07-23
JJA120 Jeju Air 9 2026-07-23
JJA1152 - 9 2026-07-08
JJA107 - 9 2026-07-09
JJA106 Jeju Air 9 2026-07-23
JJA132 - 8 2026-07-06
JJA123 Jeju Air 8 2026-07-19
JJA115 Jeju Air 8 2026-07-23
JJA114 - 8 2026-07-19
JJA702 - 7 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JJA136 CJU → GMP Jul 26, 12:25 UTCJul 26, 13:00 UTC35m
2026-07-26 JJA225 CJJ → CJU Jul 26, 10:20 UTCJul 26, 10:45 UTC25m
2026-07-26 JJA226 CJU → CJJ Jul 26, 08:40 UTCJul 26, 09:15 UTC35m
2026-07-26 JJA127 GMP → CJU Jul 26, 06:20 UTCJul 26, 07:00 UTC41m
2026-07-26 JJA118 CJU → GMP Jul 26, 03:45 UTCJul 26, 04:20 UTC35m
2026-07-26 JJA113 GMP → CJU Jul 26, 01:45 UTCJul 26, 02:15 UTC30m
2026-07-26 JJA104 CJU → GMP Jul 26, 00:10 UTCJul 26, 00:50 UTC40m
2026-07-25 JJA105 GMP → CJU Jul 25, 22:05 UTCJul 25, 22:40 UTC35m
2026-07-25 JJA134 CJU → GMP Jul 25, 11:50 UTCJul 25, 12:35 UTC45m
2026-07-25 JJA135 GMP → CJU Jul 25, 09:40 UTCJul 25, 10:15 UTC35m
2026-07-25 JJA126 CJU → GMP Jul 25, 08:00 UTCJul 25, 08:45 UTC45m
2026-07-25 JJA125 GMP → CJU Jul 25, 05:50 UTCJul 25, 06:20 UTC30m
2026-07-25 JJA154 CJU → GMP Jul 25, 04:05 UTCJul 25, 04:50 UTC45m
2026-07-25 JJA153 GMP → CJU Jul 25, 01:55 UTCJul 25, 02:30 UTC35m
2026-07-24 JJA152 CJU → GMP Jul 24, 23:55 UTCJul 25, 00:35 UTC40m
2026-07-24 JJA151 GMP → CJU Jul 24, 21:50 UTCJul 24, 22:25 UTC35m
2026-07-24 JJA138 CJU → GMP Jul 24, 12:45 UTCJul 24, 13:30 UTC45m
2026-07-24 JJA227 CJJ → CJU Jul 24, 10:45 UTCJul 24, 11:10 UTC25m
2026-07-24 JJA228 CJU → CJJ Jul 24, 09:10 UTCJul 24, 09:40 UTC30m
2026-07-24 JJA509 PUS → CJU Jul 24, 07:05 UTCJul 24, 07:20 UTC15m
2026-07-24 JJA508 CJU → PUS Jul 24, 05:45 UTCJul 24, 06:05 UTC20m
2026-07-24 JJA505 PUS → CJU Jul 24, 03:30 UTCJul 24, 03:45 UTC15m
2026-07-24 JJA504 CJU → PUS Jul 24, 02:10 UTCJul 24, 02:30 UTC20m
2026-07-23 JJA185 GMP → CJU Jul 23, 23:55 UTCJul 24, 00:30 UTC35m
2026-07-23 JJA142 CJU → GMP Jul 23, 13:25 UTCJul 23, 13:55 UTC30m
2026-07-23 JJA139 GMP → CJU Jul 23, 11:15 UTCJul 23, 11:55 UTC40m
2026-07-23 JJA128 CJU → GMP Jul 23, 09:35 UTCJul 23, 10:15 UTC40m
2026-07-23 JJA129 GMP → CJU Jul 23, 07:15 UTCJul 23, 08:00 UTC45m
2026-07-23 JJA120 CJU → GMP Jul 23, 05:20 UTCJul 23, 06:00 UTC40m
2026-07-23 JJA115 GMP → CJU Jul 23, 03:05 UTCJul 23, 03:40 UTC35m
2026-07-23 JJA106 CJU → GMP Jul 23, 01:20 UTCJul 23, 02:00 UTC40m
2026-07-22 JJA501 PUS → CJU Jul 22, 23:15 UTCJul 22, 23:30 UTC15m
2026-07-22 JJA907 - Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-22 JJA119 GMP → CJU Jul 22, 03:40 UTCJul 22, 04:20 UTC40m
2026-07-22 JJA110 CJU → GMP Jul 22, 01:55 UTCJul 22, 02:35 UTC40m
2026-07-22 JJA503 PUS → CJU Jul 22, 00:05 UTCJul 22, 00:20 UTC15m
2026-07-21 JJA1354 KIX → PUS Jul 21, 10:30 UTCJul 21, 11:30 UTC1h 0m
2026-07-21 JJA1353 PUS → KIX Jul 21, 08:05 UTCJul 21, 09:10 UTC1h 5m
2026-07-21 JJA6152 TPE → PUS Jul 21, 05:50 UTCJul 21, 06:20 UTC30m
2026-07-21 JJA6152 TPE → PUS Jul 21, 04:25 UTCJul 21, 04:40 UTC15m
2026-07-21 JJA6151 PUS → TPE Jul 21, 02:30 UTCJul 21, 02:50 UTC20m
2026-07-21 JJA6151 PUS → TPE Jul 21, 00:55 UTCJul 21, 01:15 UTC20m
2026-07-20 JJA2552 - Jul 20, 23:10 UTCJul 20, 23:25 UTC15m
2026-07-20 JJA2552 - Jul 20, 18:35 UTCJul 20, 22:00 UTC3h 25m
2026-07-20 JJA2551 PUS → BKK Jul 20, 11:25 UTCJul 20, 16:20 UTC4h 55m
2026-07-20 JJA1454 - Jul 20, 06:30 UTCJul 20, 07:00 UTC30m
2026-07-20 JJA1453 PUS → FUK Jul 20, 04:15 UTCJul 20, 04:40 UTC25m
2026-07-20 JJA1352 KIX → PUS Jul 20, 01:50 UTCJul 20, 02:55 UTC1h 5m
2026-07-19 JJA1351 PUS → KIX Jul 19, 23:25 UTCJul 20, 00:25 UTC1h 0m
2026-07-19 JJA2158 PUS → PUS Jul 19, 11:50 UTCJul 19, 21:35 UTC9h 45m

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 HL8089 page for operator, model, and routing details .

Mode-S 71C089 frequently asked

What is Mode-S code 71C089?
71C089 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8089.
Where is Mode-S 71C089 registered?
Mode-S code 71C089 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 71C089 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C089, octal 34340211, decimal 7,454,857.
What flights does 71C089 operate?
Mode-S 71C089 has broadcast 20 distinct callsigns, including JJA6256, JJA1151, JJA214, JJA213, JJA119.