sensors Mode-S transponder

71C302

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

Currently assigned to HL8302 · BOEING 737-800

Hex
71C302
Octal
34341402
Decimal
7,455,490
Country
KR
Tail
HL8302
Type
B738
No current signal · last broadcast 13h ago
Flights observed
10
Distinct callsigns
6
Country
KR
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 71C302.

Country allocation

The ICAO 24-bit address 71C302 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 6 distinct

Callsign Airline Flights Last seen
JJA6002 Jeju Air 3 2026-04-14
JJA2126 - 3 2026-04-13
JJA6014 Jeju Air 1 2026-04-12
JJA2125 - 1 2026-04-13
JJA1172 - 1 2026-04-13
JJA1171 Jeju Air 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 JJA6002 MFM → ICN Apr 14, 09:10 UTCApr 14, 09:20 UTC10m
2026-04-14 JJA6002 MFM → ICN Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 JJA6002 MFM → ICN Apr 14, 06:15 UTCApr 14, 07:10 UTC55m
2026-04-13 JJA2126 - Apr 13, 19:50 UTCApr 13, 22:45 UTC2h 55m
2026-04-13 JJA2126 - Apr 13, 16:15 UTCApr 13, 20:10 UTC3h 55m
2026-04-13 JJA2126 - Apr 13, 16:05 UTCApr 13, 19:45 UTC3h 40m
2026-04-13 JJA2125 - Apr 13, 13:05 UTCApr 13, 16:15 UTC3h 10m
2026-04-13 JJA1172 - Apr 13, 08:45 UTCApr 13, 10:50 UTC2h 5m
2026-04-13 JJA1171 ICN → NRT Apr 13, 05:00 UTCApr 13, 06:50 UTC1h 50m
2026-04-12 JJA6014 HKG → ICN Apr 12, 17:30 UTCApr 12, 20:15 UTC2h 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 HL8302 page for operator, model, and routing details .

Mode-S 71C302 frequently asked

What is Mode-S code 71C302?
71C302 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8302.
Where is Mode-S 71C302 registered?
Mode-S code 71C302 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 71C302 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C302, octal 34341402, decimal 7,455,490.
What flights does 71C302 operate?
Mode-S 71C302 has broadcast 6 distinct callsigns, including JJA6002, JJA2126, JJA6014, JJA2125, JJA1172.