Apparatus

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sensors Mode-S transponder

71C315

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

Currently assigned to HL8315 · AIRBUS A220-300

Hex
71C315
Octal
34341425
Decimal
7,455,509
Country
KR
Tail
HL8315
Type
BCS3
No current signal · last broadcast 6h ago
Flights observed
431
Distinct callsigns
20
Country
KR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 71C315.

Country allocation

The ICAO 24-bit address 71C315 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
KAL1807 - 19 2026-07-12
KAL1214 - 17 2026-07-10
KAL2031 Korean Air 15 2026-04-22
KAL1844 - 14 2026-07-09
KAL1843 - 14 2026-07-08
KAL1314 - 14 2026-07-12
KAL2032 Korean Air 13 2026-04-22
KAL1832 - 13 2026-07-06
KAL1707 - 13 2026-07-14
KAL1704 - 13 2026-07-13
KAL1620 - 13 2026-07-05
KAL1610 - 13 2026-07-13
KAL1079 - 13 2026-07-10
KAL1075 - 13 2026-07-09
KAL1725 - 12 2026-07-13
KAL1722 - 12 2026-07-13
KAL1619 - 12 2026-07-05
KAL1611 - 12 2026-07-13
KAL1515 - 11 2026-07-13
KAL1561 - 10 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL1707 - Jul 14, 00:35 UTCJul 14, 01:05 UTC30m
2026-07-13 KAL1704 - Jul 13, 22:40 UTCJul 13, 23:10 UTC30m
2026-07-13 KAL1561 - Jul 13, 13:10 UTCJul 13, 13:25 UTC15m
2026-07-13 KAL1554 - Jul 13, 12:00 UTCJul 13, 12:20 UTC20m
2026-07-13 KAL1725 - Jul 13, 08:30 UTCJul 13, 09:00 UTC30m
2026-07-13 KAL1722 - Jul 13, 06:25 UTCJul 13, 06:55 UTC30m
2026-07-13 KAL1611 - Jul 13, 04:30 UTCJul 13, 04:45 UTC15m
2026-07-13 KAL1610 - Jul 13, 03:25 UTCJul 13, 03:40 UTC15m
2026-07-13 KAL1515 - Jul 13, 01:10 UTCJul 13, 01:25 UTC15m
2026-07-12 KAL1807 GMP → PUS Jul 12, 23:20 UTCJul 13, 00:05 UTC45m
2026-07-12 KAL1314 - Jul 12, 11:25 UTCJul 12, 11:55 UTC30m
2026-07-12 KAL1725 - Jul 12, 09:00 UTCJul 12, 09:25 UTC25m
2026-07-12 KAL1722 - Jul 12, 07:20 UTCJul 12, 07:45 UTC25m
2026-07-12 KAL1611 - Jul 12, 05:15 UTCJul 12, 05:30 UTC15m
2026-07-12 KAL1610 - Jul 12, 04:05 UTCJul 12, 04:15 UTC10m
2026-07-12 KAL1515 - Jul 12, 01:10 UTCJul 12, 01:30 UTC20m
2026-07-11 KAL1807 GMP → PUS Jul 11, 23:20 UTCJul 12, 00:01 UTC40m
2026-07-11 KAL1328 - Jul 11, 13:10 UTCJul 11, 13:40 UTC30m
2026-07-11 KAL1205 - Jul 11, 10:35 UTCJul 11, 11:20 UTC45m
2026-07-10 KAL1214 - Jul 10, 05:15 UTCJul 10, 05:55 UTC40m
2026-07-10 KAL1079 - Jul 10, 01:55 UTCJul 10, 02:30 UTC35m
2026-07-09 KAL1806 - Jul 9, 23:55 UTCJul 10, 00:35 UTC40m
2026-07-09 KAL1803 GMP → PUS Jul 9, 22:15 UTCJul 9, 22:50 UTC35m
2026-07-09 KAL1328 - Jul 9, 12:10 UTCJul 9, 12:45 UTC35m
2026-07-09 KAL1205 - Jul 9, 10:10 UTCJul 9, 10:50 UTC40m
2026-07-09 KAL1268 - Jul 9, 08:20 UTCJul 9, 09:05 UTC45m
2026-07-09 KAL1595 - Jul 9, 06:15 UTCJul 9, 06:35 UTC20m
2026-07-09 KAL1596 - Jul 9, 04:50 UTCJul 9, 05:05 UTC15m
2026-07-09 KAL1075 - Jul 9, 02:30 UTCJul 9, 03:15 UTC45m
2026-07-09 KAL1844 - Jul 9, 00:35 UTCJul 9, 01:20 UTC45m
2026-07-08 KAL1843 - Jul 8, 22:50 UTCJul 8, 23:15 UTC25m
2026-07-08 KAL1848 - Jul 8, 11:55 UTCJul 8, 12:30 UTC35m
2026-07-08 KAL1847 - Jul 8, 10:10 UTCJul 8, 10:35 UTC25m
2026-07-08 KAL1272 - Jul 8, 08:25 UTCJul 8, 09:10 UTC45m
2026-07-08 KAL1143 - Jul 8, 06:15 UTCJul 8, 06:50 UTC35m
2026-07-08 KAL1814 PUS → GMP Jul 8, 04:00 UTCJul 8, 04:50 UTC50m
2026-07-08 KAL1811 GMP → PUS Jul 8, 02:10 UTCJul 8, 03:05 UTC55m
2026-07-08 KAL1806 PUS → GMP Jul 8, 00:15 UTCJul 8, 01:05 UTC50m
2026-07-07 KAL1803 GMP → PUS Jul 7, 22:15 UTCJul 7, 23:05 UTC50m
2026-07-07 KAL1328 - Jul 7, 12:05 UTCJul 7, 12:45 UTC40m
2026-07-07 KAL1205 - Jul 7, 10:00 UTCJul 7, 10:45 UTC45m
2026-07-07 KAL1268 - Jul 7, 08:20 UTCJul 7, 09:00 UTC40m
2026-07-07 KAL1595 - Jul 7, 06:15 UTCJul 7, 06:35 UTC20m
2026-07-07 KAL1596 - Jul 7, 04:40 UTCJul 7, 04:55 UTC15m
2026-07-07 KAL1079 - Jul 7, 01:55 UTCJul 7, 02:30 UTC35m
2026-07-07 KAL1806 PUS → GMP Jul 7, 00:05 UTCJul 7, 00:55 UTC50m
2026-07-06 KAL1803 GMP → PUS Jul 6, 22:20 UTCJul 6, 23:00 UTC40m
2026-07-06 KAL1832 PUS → GMP Jul 6, 11:15 UTCJul 6, 11:55 UTC40m
2026-07-06 KAL1550 - Jul 6, 09:55 UTCJul 6, 10:15 UTC20m
2026-07-06 KAL1543 - Jul 6, 07:50 UTCJul 6, 08:05 UTC15m

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 HL8315 page for operator, model, and routing details .

Mode-S 71C315 frequently asked

What is Mode-S code 71C315?
71C315 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8315.
Where is Mode-S 71C315 registered?
Mode-S code 71C315 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 71C315 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C315, octal 34341425, decimal 7,455,509.
What flights does 71C315 operate?
Mode-S 71C315 has broadcast 20 distinct callsigns, including KAL1807, KAL1214, KAL2031, KAL1844, KAL1843.