sensors Mode-S transponder
71C011
ICAO 24-bit transponder address · allocated to Korea, South
Currently assigned to HL8011 · BOEING 777-300ER
- Hex
- 71C011
- Octal
- 34340021
- Decimal
- 7,454,737
- Country
- KR
- Tail
- HL8011
- Type
- B77W
- Flights observed
- 84
- Distinct callsigns
- 20
- Country
- KR
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 71C011 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 |
|---|---|---|---|
| KAL005 | - | 11 | 2026-05-29 |
| KAL006 | - | 10 | 2026-05-30 |
| KAL908 | Korean Air | 7 | 2026-05-05 |
| KAL036 | Korean Air | 7 | 2026-05-26 |
| KAL938 | Korean Air | 6 | 2026-05-16 |
| KAL907 | Korean Air | 6 | 2026-05-05 |
| KAL937 | Korean Air | 5 | 2026-05-15 |
| KAL902 | Korean Air | 4 | 2026-05-29 |
| KAL093 | Korean Air | 4 | 2026-05-02 |
| KAL901 | Korean Air | 3 | 2026-05-28 |
| KAL086 | Korean Air | 3 | 2026-05-23 |
| KAL085 | Korean Air | 3 | 2026-05-22 |
| KAL874 | - | 2 | 2026-05-22 |
| KAL873 | - | 2 | 2026-05-22 |
| KAL646 | Korean Air | 2 | 2026-05-18 |
| KAL094 | Korean Air | 2 | 2026-05-02 |
| KAL035 | Korean Air | 2 | 2026-05-26 |
| KAL766 | Korean Air | 1 | 2026-04-22 |
| KAL765 | Korean Air | 1 | 2026-04-22 |
| KAL645 | Korean Air | 1 | 2026-05-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | KAL006 | LAS → ICN | May 30, 07:10 UTC | May 30, 19:50 UTC | 12h 40m |
| 2026-05-29 | KAL005 | ICN → LAS | May 29, 12:25 UTC | May 29, 22:45 UTC | 10h 20m |
| 2026-05-29 | KAL902 | CDG → ICN | May 29, 06:35 UTC | May 29, 06:55 UTC | 20m |
| 2026-05-28 | KAL902 | CDG → ICN | May 28, 19:25 UTC | May 29, 05:45 UTC | 10h 20m |
| 2026-05-28 | KAL901 | ICN → CDG | May 28, 04:20 UTC | May 28, 16:55 UTC | 12h 35m |
| 2026-05-28 | KAL901 | ICN → CDG | May 28, 02:55 UTC | May 28, 03:15 UTC | 20m |
| 2026-05-26 | KAL036 | ATL → ICN | May 26, 18:24 UTC | May 27, 09:05 UTC | 14h 41m |
| 2026-05-26 | KAL035 | ICN → ATL | May 26, 02:19 UTC | May 26, 15:49 UTC | 13h 30m |
| 2026-05-24 | KAL036 | ATL → ICN | May 24, 17:45 UTC | May 25, 08:05 UTC | 14h 20m |
| 2026-05-24 | KAL035 | ICN → ATL | May 24, 02:10 UTC | May 24, 15:10 UTC | 13h 0m |
| 2026-05-23 | KAL086 | JFK → ICN | May 23, 05:05 UTC | May 23, 19:15 UTC | 14h 11m |
| 2026-05-22 | KAL085 | ICN → JFK | May 22, 11:25 UTC | May 23, 00:25 UTC | 13h 0m |
| 2026-05-22 | KAL874 | - | May 22, 08:05 UTC | May 22, 08:30 UTC | 25m |
| 2026-05-22 | KAL873 | - | May 22, 04:50 UTC | May 22, 05:10 UTC | 20m |
| 2026-05-21 | KAL006 | LAS → ICN | May 21, 07:10 UTC | May 21, 20:15 UTC | 13h 5m |
| 2026-05-20 | KAL005 | ICN → LAS | May 20, 12:30 UTC | May 20, 22:50 UTC | 10h 20m |
| 2026-05-19 | KAL874 | - | May 19, 07:45 UTC | May 19, 08:15 UTC | 30m |
| 2026-05-19 | KAL873 | - | May 19, 04:30 UTC | May 19, 04:55 UTC | 25m |
| 2026-05-18 | KAL646 | SIN → ICN | May 18, 20:40 UTC | May 18, 23:35 UTC | 2h 55m |
| 2026-05-18 | KAL646 | SIN → ICN | May 18, 17:40 UTC | May 18, 17:50 UTC | 10m |
| 2026-05-18 | KAL645 | PUS → CBO | May 18, 10:10 UTC | May 18, 15:35 UTC | 5h 25m |
| 2026-05-17 | KAL006 | LAS → ICN | May 17, 07:05 UTC | May 17, 19:15 UTC | 12h 10m |
| 2026-05-16 | KAL005 | ICN → LAS | May 16, 12:21 UTC | May 16, 22:50 UTC | 10h 30m |
| 2026-05-16 | KAL938 | VIE → ICN | May 16, 03:05 UTC | May 16, 03:25 UTC | 20m |
| 2026-05-15 | KAL938 | VIE → ICN | May 15, 16:45 UTC | May 15, 19:50 UTC | 3h 5m |
| 2026-05-15 | KAL937 | ICN → VIE | May 15, 10:55 UTC | May 15, 14:05 UTC | 3h 10m |
| 2026-05-15 | KAL937 | ICN → VIE | May 15, 02:20 UTC | May 15, 02:30 UTC | 10m |
| 2026-05-14 | KAL196P | PUS → ICN | May 14, 08:00 UTC | May 14, 08:30 UTC | 30m |
| 2026-05-08 | KAL195F | ICN → PUS | May 8, 01:19 UTC | May 8, 01:45 UTC | 25m |
| 2026-05-07 | KAL006 | - | May 7, 07:15 UTC | May 7, 19:45 UTC | 12h 30m |
| 2026-05-06 | KAL005 | - | May 6, 13:25 UTC | May 6, 23:15 UTC | 9h 50m |
| 2026-05-06 | KAL005 | - | May 6, 12:20 UTC | May 6, 12:40 UTC | 20m |
| 2026-05-05 | KAL908 | LHR → ICN | May 5, 19:00 UTC | May 6, 05:55 UTC | 10h 54m |
| 2026-05-05 | KAL907 | ICN → LHR | May 5, 03:30 UTC | May 5, 15:55 UTC | 12h 25m |
| 2026-05-05 | KAL907 | ICN → LHR | May 5, 02:20 UTC | May 5, 02:30 UTC | 10m |
| 2026-05-04 | KAL006 | - | May 4, 07:05 UTC | May 4, 19:50 UTC | 12h 46m |
| 2026-05-03 | KAL005 | - | May 3, 12:25 UTC | May 3, 23:04 UTC | 10h 40m |
| 2026-05-02 | KAL094 | IAD → ICN | May 2, 17:45 UTC | May 3, 08:45 UTC | 14h 59m |
| 2026-05-02 | KAL093 | ICN → IAD | May 2, 03:05 UTC | May 2, 15:00 UTC | 11h 55m |
| 2026-05-02 | KAL093 | ICN → IAD | May 2, 02:00 UTC | May 2, 02:25 UTC | 25m |
| 2026-04-30 | KAL094 | IAD → ICN | Apr 30, 17:55 UTC | May 1, 08:55 UTC | 15h 0m |
| 2026-04-30 | KAL093 | ICN → IAD | Apr 30, 03:05 UTC | Apr 30, 15:00 UTC | 11h 55m |
| 2026-04-30 | KAL093 | ICN → IAD | Apr 30, 02:00 UTC | Apr 30, 02:25 UTC | 25m |
| 2026-04-29 | KAL006 | - | Apr 29, 07:05 UTC | Apr 29, 19:45 UTC | 12h 41m |
| 2026-04-28 | KAL005 | - | Apr 28, 12:30 UTC | Apr 28, 22:49 UTC | 10h 20m |
| 2026-04-28 | KAL902 | CDG → ICN | Apr 28, 06:20 UTC | Apr 28, 06:35 UTC | 15m |
| 2026-04-27 | KAL902 | CDG → ICN | Apr 27, 19:10 UTC | Apr 28, 05:30 UTC | 10h 20m |
| 2026-04-27 | KAL901 | ICN → CDG | Apr 27, 02:55 UTC | Apr 27, 16:45 UTC | 13h 50m |
| 2026-04-25 | KAL006 | LAS → ICN | Apr 25, 07:05 UTC | Apr 25, 19:15 UTC | 12h 10m |
| 2026-04-24 | KAL005 | - | Apr 24, 12:35 UTC | Apr 24, 23:00 UTC | 10h 25m |
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 HL8011 page for operator, model, and routing details .