sensors Mode-S transponder
71C081
ICAO 24-bit transponder address · allocated to Korea, South
Currently assigned to HL8081 · BOEING 787-9 Dreamliner
- Hex
- 71C081
- Octal
- 34340201
- Decimal
- 7,454,849
- Country
- KR
- Tail
- HL8081
- Type
- B789
- Flights observed
- 224
- Distinct callsigns
- 20
- Country
- KR
- Last broadcast
- Jul 26, 11:55 UTC
Last known position
Country allocation
The ICAO 24-bit address 71C081 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 |
|---|---|---|---|
| KAL032 | Korean Air | 24 | 2026-07-22 |
| KAL498 | - | 22 | 2026-07-19 |
| KAL031 | Korean Air | 17 | 2026-07-22 |
| KAL955 | Korean Air | 11 | 2026-06-12 |
| KAL497 | Korean Air | 11 | 2026-07-19 |
| KAL964 | - | 8 | 2026-07-21 |
| KAL956 | - | 8 | 2026-06-13 |
| KAL468 | Korean Air | 8 | 2026-07-04 |
| KAL480 | - | 7 | 2026-06-21 |
| KAL963 | Korean Air | 6 | 2026-07-20 |
| KAL914 | Korean Air | 6 | 2026-07-25 |
| KAL913 | Korean Air | 6 | 2026-07-24 |
| KAL678 | Korean Air | 6 | 2026-07-23 |
| KAL471 | - | 6 | 2026-07-18 |
| KAL479 | Korean Air | 5 | 2026-05-26 |
| KAL432 | Korean Air | 5 | 2026-06-19 |
| KAL922 | - | 4 | 2026-07-02 |
| KAL677 | Korean Air | 4 | 2026-04-29 |
| KAL472 | Korean Air | 4 | 2026-07-26 |
| KAL431 | Korean Air | 4 | 2026-07-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | KAL472 | SGN → ICN | Jul 26, 00:45 UTC | Jul 26, 11:55 UTC | 11h 11m |
| 2026-07-25 | KAL914 | MAD → ICN | Jul 25, 06:10 UTC | Jul 25, 06:35 UTC | 25m |
| 2026-07-24 | KAL914 | MAD → ICN | Jul 24, 18:50 UTC | Jul 25, 05:25 UTC | 10h 35m |
| 2026-07-24 | KAL913 | ICN → MAD | Jul 24, 02:45 UTC | Jul 24, 15:25 UTC | 12h 40m |
| 2026-07-24 | KAL913 | ICN → MAD | Jul 24, 01:35 UTC | Jul 24, 01:55 UTC | 20m |
| 2026-07-23 | KAL678 | HKT → ICN | Jul 23, 09:30 UTC | Jul 23, 22:30 UTC | 13h 0m |
| 2026-07-22 | KAL032 | DFW → ICN | Jul 22, 17:40 UTC | Jul 23, 07:20 UTC | 13h 40m |
| 2026-07-22 | KAL031 | ICN → DFW | Jul 22, 00:55 UTC | Jul 22, 13:10 UTC | 12h 15m |
| 2026-07-21 | KAL431 | ICN → DPS | Jul 21, 07:40 UTC | Jul 21, 22:45 UTC | 15h 5m |
| 2026-07-21 | KAL964 | - | Jul 21, 03:50 UTC | Jul 21, 04:10 UTC | 20m |
| 2026-07-20 | KAL964 | - | Jul 20, 18:35 UTC | Jul 21, 03:05 UTC | 8h 29m |
| 2026-07-20 | KAL963 | ICN → BUD | Jul 20, 04:30 UTC | Jul 20, 16:05 UTC | 11h 35m |
| 2026-07-19 | KAL498 | - | Jul 19, 19:50 UTC | Jul 19, 20:20 UTC | 30m |
| 2026-07-19 | KAL498 | - | Jul 19, 13:45 UTC | Jul 19, 16:25 UTC | 2h 40m |
| 2026-07-19 | KAL497 | ICN → DEL | Jul 19, 04:15 UTC | Jul 19, 11:00 UTC | 6h 45m |
| 2026-07-18 | KAL471 | ICN → ICN | Jul 18, 00:45 UTC | Jul 18, 12:00 UTC | 11h 16m |
| 2026-07-17 | KAL678 | ICN → ICN | Jul 17, 09:35 UTC | Jul 17, 22:35 UTC | 13h 0m |
| 2026-07-16 | KAL498 | - | Jul 16, 19:55 UTC | Jul 16, 20:29 UTC | 35m |
| 2026-07-16 | KAL498 | - | Jul 16, 13:54 UTC | Jul 16, 16:35 UTC | 2h 40m |
| 2026-07-16 | KAL497 | ICN → DEL | Jul 16, 04:35 UTC | Jul 16, 11:10 UTC | 6h 35m |
| 2026-07-15 | KAL431 | ICN → ICN | Jul 15, 07:30 UTC | Jul 15, 22:40 UTC | 15h 10m |
| 2026-07-15 | KAL724 | - | Jul 15, 04:05 UTC | Jul 15, 05:25 UTC | 1h 20m |
| 2026-07-15 | KAL723 | ICN → KIX | Jul 15, 01:05 UTC | Jul 15, 02:25 UTC | 1h 20m |
| 2026-07-13 | KAL032 | DFW → ICN | Jul 13, 17:50 UTC | Jul 14, 07:45 UTC | 13h 55m |
| 2026-07-13 | KAL031 | - | Jul 13, 00:55 UTC | Jul 13, 13:30 UTC | 12h 35m |
| 2026-07-12 | KAL472 | - | Jul 12, 00:35 UTC | Jul 12, 11:55 UTC | 11h 20m |
| 2026-07-11 | KAL696 | - | Jul 11, 19:20 UTC | Jul 11, 19:40 UTC | 20m |
| 2026-07-11 | KAL696 | - | Jul 11, 13:40 UTC | Jul 11, 15:30 UTC | 1h 50m |
| 2026-07-11 | KAL695 | ICN → KTM | Jul 11, 06:01 UTC | Jul 11, 11:45 UTC | 5h 45m |
| 2026-07-10 | KAL498 | - | Jul 10, 20:25 UTC | Jul 10, 20:40 UTC | 15m |
| 2026-07-10 | KAL498 | - | Jul 10, 13:45 UTC | Jul 10, 16:30 UTC | 2h 45m |
| 2026-07-10 | KAL497 | - | Jul 10, 04:25 UTC | Jul 10, 10:50 UTC | 6h 25m |
| 2026-07-08 | KAL412 | - | Jul 8, 23:35 UTC | Jul 9, 10:50 UTC | 11h 15m |
| 2026-07-08 | KAL411 | ICN → AKL | Jul 8, 09:25 UTC | Jul 8, 20:15 UTC | 10h 50m |
| 2026-07-08 | KAL964 | - | Jul 8, 04:10 UTC | Jul 8, 04:25 UTC | 15m |
| 2026-07-07 | KAL964 | - | Jul 7, 18:40 UTC | Jul 8, 03:15 UTC | 8h 35m |
| 2026-07-07 | KAL963 | - | Jul 7, 04:15 UTC | Jul 7, 16:05 UTC | 11h 50m |
| 2026-07-05 | KAL914 | - | Jul 5, 19:00 UTC | Jul 6, 07:00 UTC | 12h 0m |
| 2026-07-05 | KAL913 | - | Jul 5, 01:20 UTC | Jul 5, 15:10 UTC | 13h 50m |
| 2026-07-04 | KAL468 | CXR → ICN | Jul 4, 11:35 UTC | Jul 4, 22:10 UTC | 10h 35m |
| 2026-07-03 | KAL408 | BNE → ICN | Jul 3, 23:00 UTC | Jul 4, 08:15 UTC | 9h 15m |
| 2026-07-03 | KAL407 | ICN → BNE | Jul 3, 11:30 UTC | Jul 3, 20:20 UTC | 8h 50m |
| 2026-07-03 | KAL2002 | - | Jul 3, 06:15 UTC | Jul 3, 09:15 UTC | 3h 0m |
| 2026-07-03 | KAL2001 | ICN → HKG | Jul 3, 02:05 UTC | Jul 3, 02:30 UTC | 25m |
| 2026-07-02 | KAL2001 | ICN → HKG | Jul 2, 23:25 UTC | Jul 3, 01:30 UTC | 2h 5m |
| 2026-07-02 | KAL922 | - | Jul 2, 10:30 UTC | Jul 2, 10:50 UTC | 20m |
| 2026-07-01 | KAL922 | - | Jul 1, 22:15 UTC | Jul 2, 09:40 UTC | 11h 25m |
| 2026-07-01 | KAL921 | - | Jul 1, 04:40 UTC | Jul 1, 18:55 UTC | 14h 15m |
| 2026-06-30 | KAL468 | CXR → ICN | Jun 30, 11:15 UTC | Jun 30, 22:05 UTC | 10h 50m |
| 2026-06-29 | KAL032 | DFW → ICN | Jun 29, 17:40 UTC | Jun 30, 07:20 UTC | 13h 40m |
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 HL8081 page for operator, model, and routing details .