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
- 109
- Distinct callsigns
- 20
- Country
- KR
- Last broadcast
- 1h ago
Current 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 | 19 | 2026-05-24 |
| KAL031 | Korean Air | 12 | 2026-05-24 |
| KAL955 | Korean Air | 9 | 2026-05-22 |
| KAL498 | Korean Air | 8 | 2026-05-21 |
| KAL479 | Korean Air | 6 | 2026-05-29 |
| KAL956 | Korean Air | 5 | 2026-05-23 |
| KAL468 | Korean Air | 5 | 2026-05-20 |
| KAL677 | Korean Air | 4 | 2026-04-29 |
| KAL497 | Korean Air | 4 | 2026-05-21 |
| KAL480 | Korean Air | 4 | 2026-05-28 |
| KAL471 | Korean Air | 4 | 2026-05-03 |
| KAL914 | Korean Air | 3 | 2026-05-10 |
| KAL913 | Korean Air | 3 | 2026-05-10 |
| KAL678 | Korean Air | 3 | 2026-05-07 |
| KAL467 | Korean Air | 3 | 2026-05-16 |
| KAL432 | Korean Air | 3 | 2026-05-23 |
| KAL647 | Korean Air | 2 | 2026-05-06 |
| KAL408 | Korean Air | 2 | 2026-05-25 |
| KAL407 | Korean Air | 2 | 2026-05-25 |
| KAL2956 | Korean Air | 2 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | KAL479 | ICN → SGN | May 29, 11:00 UTC | May 30, 03:40 UTC | 16h 40m |
| 2026-05-28 | KAL480 | SGN → ICN | May 28, 11:50 UTC | May 29, 05:40 UTC | 17h 50m |
| 2026-05-28 | KAL166 | WUH → ICN | May 28, 00:05 UTC | May 28, 06:45 UTC | 6h 40m |
| 2026-05-26 | KAL480 | SGN → ICN | May 26, 12:54 UTC | May 27, 05:35 UTC | 16h 40m |
| 2026-05-26 | KAL479 | ICN → SGN | May 26, 11:24 UTC | May 26, 11:50 UTC | 25m |
| 2026-05-25 | KAL408 | BNE → ICN | May 25, 22:55 UTC | May 26, 08:30 UTC | 9h 35m |
| 2026-05-25 | KAL407 | ICN → BNE | May 25, 11:20 UTC | May 25, 19:54 UTC | 8h 34m |
| 2026-05-24 | KAL032 | DFW → ICN | May 24, 17:35 UTC | May 25, 07:40 UTC | 14h 5m |
| 2026-05-24 | KAL031 | ICN → DFW | May 24, 00:50 UTC | May 24, 12:50 UTC | 12h 0m |
| 2026-05-23 | KAL432 | DPS → ICN | May 23, 07:35 UTC | May 23, 22:35 UTC | 15h 0m |
| 2026-05-23 | KAL956 | IST → ICN | May 23, 03:20 UTC | May 23, 03:45 UTC | 25m |
| 2026-05-22 | KAL956 | IST → ICN | May 22, 19:40 UTC | May 22, 20:40 UTC | 1h 0m |
| 2026-05-22 | KAL955 | ICN → IST | May 22, 16:00 UTC | May 22, 16:10 UTC | 10m |
| 2026-05-22 | KAL955 | ICN → IST | May 22, 05:25 UTC | May 22, 15:25 UTC | 10h 0m |
| 2026-05-21 | KAL498 | DEL → ICN | May 21, 19:40 UTC | May 21, 20:00 UTC | 20m |
| 2026-05-21 | KAL498 | DEL → ICN | May 21, 13:40 UTC | May 21, 15:40 UTC | 2h 0m |
| 2026-05-21 | KAL497 | ICN → DEL | May 21, 03:45 UTC | May 21, 11:05 UTC | 7h 20m |
| 2026-05-20 | KAL468 | CXR → ICN | May 20, 11:45 UTC | May 20, 22:20 UTC | 10h 35m |
| 2026-05-19 | KAL491 | ICN → RGN | May 19, 07:15 UTC | May 19, 20:35 UTC | 13h 20m |
| 2026-05-19 | KAL956 | IST → ICN | May 19, 04:20 UTC | May 19, 04:40 UTC | 20m |
| 2026-05-18 | KAL956 | IST → ICN | May 18, 20:15 UTC | May 19, 03:30 UTC | 7h 15m |
| 2026-05-18 | KAL956 | IST → ICN | May 18, 19:25 UTC | May 18, 19:40 UTC | 15m |
| 2026-05-18 | KAL955 | ICN → IST | May 18, 15:55 UTC | May 18, 16:05 UTC | 10m |
| 2026-05-18 | KAL955 | ICN → IST | May 18, 06:10 UTC | May 18, 15:10 UTC | 9h 0m |
| 2026-05-18 | KAL955 | ICN → IST | May 18, 05:00 UTC | May 18, 05:15 UTC | 15m |
| 2026-05-16 | KAL467 | ICN → CNX | May 16, 11:21 UTC | May 16, 22:15 UTC | 10h 54m |
| 2026-05-15 | KAL032 | DFW → ICN | May 15, 17:15 UTC | May 16, 06:55 UTC | 13h 41m |
| 2026-05-15 | KAL031 | ICN → DFW | May 15, 00:50 UTC | May 15, 13:25 UTC | 12h 35m |
| 2026-05-14 | KAL468 | CXR → ICN | May 14, 11:25 UTC | May 14, 22:15 UTC | 10h 50m |
| 2026-05-13 | KAL408 | BNE → ICN | May 13, 23:05 UTC | May 14, 08:45 UTC | 9h 40m |
| 2026-05-13 | KAL407 | ICN → BNE | May 13, 11:25 UTC | May 13, 20:05 UTC | 8h 40m |
| 2026-05-13 | KAL868 | CAN → ICN | May 13, 07:40 UTC | May 13, 08:20 UTC | 40m |
| 2026-05-13 | KAL867 | ICN → CAN | May 13, 00:15 UTC | May 13, 00:50 UTC | 35m |
| 2026-05-11 | KAL479 | ICN → SGN | May 11, 11:10 UTC | May 12, 05:30 UTC | 18h 21m |
| 2026-05-10 | KAL914 | MAD → ICN | May 10, 18:49 UTC | May 10, 21:49 UTC | 3h 0m |
| 2026-05-10 | KAL913 | ICN → MAD | May 10, 01:20 UTC | May 10, 16:00 UTC | 14h 40m |
| 2026-05-09 | KAL032 | DFW → ICN | May 9, 07:40 UTC | May 9, 08:05 UTC | 25m |
| 2026-05-08 | KAL032 | DFW → ICN | May 8, 17:35 UTC | May 9, 07:10 UTC | 13h 35m |
| 2026-05-08 | KAL031 | ICN → DFW | May 8, 00:54 UTC | May 8, 13:10 UTC | 12h 15m |
| 2026-05-07 | KAL678 | HKT → ICN | May 7, 09:15 UTC | May 7, 22:10 UTC | 12h 55m |
| 2026-05-07 | KAL648 | SIN → ICN | May 7, 03:00 UTC | May 7, 05:55 UTC | 2h 55m |
| 2026-05-06 | KAL647 | ICN → SIN | May 6, 20:00 UTC | May 6, 20:10 UTC | 10m |
| 2026-05-06 | KAL647 | ICN → SIN | May 6, 14:50 UTC | May 6, 17:30 UTC | 2h 40m |
| 2026-05-05 | KAL479 | ICN → SGN | May 5, 11:15 UTC | May 6, 05:30 UTC | 18h 15m |
| 2026-05-04 | KAL032 | DFW → ICN | May 4, 17:20 UTC | May 5, 07:50 UTC | 14h 31m |
| 2026-05-04 | KAL031 | ICN → DFW | May 4, 00:50 UTC | May 4, 12:55 UTC | 12h 5m |
| 2026-05-03 | KAL471 | ICN → SGN | May 3, 00:50 UTC | May 3, 12:05 UTC | 11h 14m |
| 2026-05-02 | KAL471 | ICN → SGN | May 2, 00:35 UTC | May 2, 11:50 UTC | 11h 15m |
| 2026-05-01 | KAL498 | DEL → ICN | May 1, 19:40 UTC | May 1, 19:55 UTC | 15m |
| 2026-05-01 | KAL498 | DEL → ICN | May 1, 13:50 UTC | May 1, 15:40 UTC | 1h 50m |
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 .