sensors Mode-S transponder
71C007
ICAO 24-bit transponder address · allocated to Korea, South
Currently assigned to HL8007 · BOEING 777-300ER
- Hex
- 71C007
- Octal
- 34340007
- Decimal
- 7,454,727
- Country
- KR
- Tail
- HL8007
- Type
- B77W
- Flights observed
- 82
- Distinct callsigns
- 19
- Country
- KR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 71C007 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| KAL093 | Korean Air | 12 | 2026-05-22 |
| KAL094 | Korean Air | 11 | 2026-05-22 |
| KAL006 | - | 8 | 2026-05-19 |
| KAL005 | - | 8 | 2026-05-18 |
| KAL938 | Korean Air | 6 | 2026-04-28 |
| KAL937 | Korean Air | 6 | 2026-04-27 |
| KAL035 | Korean Air | 5 | 2026-05-30 |
| KAL036 | Korean Air | 4 | 2026-05-17 |
| KAL902 | Korean Air | 3 | 2026-05-21 |
| KAL646 | Korean Air | 3 | 2026-05-29 |
| KAL034 | Korean Air | 3 | 2026-05-28 |
| KAL033 | Korean Air | 3 | 2026-05-28 |
| KAL901 | Korean Air | 2 | 2026-05-20 |
| KAL645 | Korean Air | 2 | 2026-05-29 |
| KAL602 | Korean Air | 2 | 2026-05-23 |
| KAL766 | Korean Air | 1 | 2026-04-25 |
| KAL765 | Korean Air | 1 | 2026-04-25 |
| KAL086 | Korean Air | 1 | 2026-05-06 |
| KAL085 | Korean Air | 1 | 2026-05-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | KAL035 | ICN → ATL | May 30, 02:00 UTC | May 30, 03:25 UTC | 1h 25m |
| 2026-05-29 | KAL646 | SIN → ICN | May 29, 20:55 UTC | May 29, 23:50 UTC | 2h 55m |
| 2026-05-29 | KAL645 | PUS → CBO | May 29, 10:00 UTC | May 29, 15:30 UTC | 5h 30m |
| 2026-05-28 | KAL034 | ATL → ICN | May 28, 16:00 UTC | May 29, 07:00 UTC | 15h 0m |
| 2026-05-28 | KAL033 | ICN → ATL | May 28, 00:00 UTC | May 28, 13:15 UTC | 13h 15m |
| 2026-05-26 | KAL034 | ATL → ICN | May 26, 16:10 UTC | May 27, 06:55 UTC | 14h 45m |
| 2026-05-26 | KAL033 | ICN → ATL | May 26, 00:09 UTC | May 26, 13:34 UTC | 13h 25m |
| 2026-05-24 | KAL034 | ATL → ICN | May 24, 15:55 UTC | May 25, 06:15 UTC | 14h 20m |
| 2026-05-24 | KAL033 | ICN → ATL | May 24, 00:00 UTC | May 24, 13:00 UTC | 13h 0m |
| 2026-05-23 | KAL602 | CEB → ICN | May 23, 11:40 UTC | May 23, 21:05 UTC | 9h 26m |
| 2026-05-22 | KAL094 | IAD → ICN | May 22, 17:55 UTC | May 23, 09:20 UTC | 15h 24m |
| 2026-05-22 | KAL093 | ICN → IAD | May 22, 01:55 UTC | May 22, 14:50 UTC | 12h 55m |
| 2026-05-21 | KAL902 | CDG → ICN | May 21, 06:25 UTC | May 21, 06:45 UTC | 20m |
| 2026-05-20 | KAL902 | CDG → ICN | May 20, 19:05 UTC | May 21, 05:35 UTC | 10h 30m |
| 2026-05-20 | KAL901 | ICN → CDG | May 20, 03:10 UTC | May 20, 16:30 UTC | 13h 21m |
| 2026-05-19 | KAL006 | LAS → ICN | May 19, 07:25 UTC | May 19, 20:20 UTC | 12h 55m |
| 2026-05-18 | KAL005 | ICN → LAS | May 18, 12:25 UTC | May 18, 23:00 UTC | 10h 34m |
| 2026-05-17 | KAL036 | ATL → ICN | May 17, 17:45 UTC | May 18, 08:15 UTC | 14h 30m |
| 2026-05-17 | KAL035 | ICN → ATL | May 17, 02:05 UTC | May 17, 15:15 UTC | 13h 10m |
| 2026-05-15 | KAL094 | IAD → ICN | May 15, 18:00 UTC | May 16, 08:31 UTC | 14h 31m |
| 2026-05-15 | KAL093 | ICN → IAD | May 15, 02:05 UTC | May 15, 15:35 UTC | 13h 29m |
| 2026-05-14 | KAL006 | LAS → ICN | May 14, 07:05 UTC | May 14, 18:55 UTC | 11h 50m |
| 2026-05-13 | KAL005 | - | May 13, 12:20 UTC | May 13, 23:00 UTC | 10h 40m |
| 2026-05-12 | KAL094 | IAD → ICN | May 12, 17:50 UTC | May 13, 08:50 UTC | 15h 0m |
| 2026-05-12 | KAL093 | ICN → IAD | May 12, 02:45 UTC | May 12, 15:01 UTC | 12h 15m |
| 2026-05-11 | KAL006 | - | May 11, 07:05 UTC | May 11, 18:55 UTC | 11h 50m |
| 2026-05-10 | KAL005 | - | May 10, 12:19 UTC | May 10, 22:40 UTC | 10h 20m |
| 2026-05-09 | KAL036 | ATL → ICN | May 9, 17:35 UTC | May 10, 08:25 UTC | 14h 50m |
| 2026-05-09 | KAL035 | ICN → ATL | May 9, 02:00 UTC | May 9, 14:45 UTC | 12h 45m |
| 2026-05-07 | KAL036 | ATL → ICN | May 7, 17:40 UTC | May 8, 09:09 UTC | 15h 30m |
| 2026-05-07 | KAL035 | ICN → ATL | May 7, 02:00 UTC | May 7, 14:50 UTC | 12h 50m |
| 2026-05-06 | KAL086 | JFK → ICN | May 6, 05:10 UTC | May 6, 19:45 UTC | 14h 34m |
| 2026-05-05 | KAL085 | ICN → JFK | May 5, 11:30 UTC | May 6, 00:55 UTC | 13h 25m |
| 2026-05-03 | KAL036 | ATL → ICN | May 3, 18:05 UTC | May 4, 09:20 UTC | 15h 15m |
| 2026-05-03 | KAL035 | ICN → ATL | May 3, 02:10 UTC | May 3, 15:05 UTC | 12h 54m |
| 2026-04-29 | KAL094 | IAD → ICN | Apr 29, 17:35 UTC | Apr 30, 08:30 UTC | 14h 54m |
| 2026-04-29 | KAL093 | ICN → IAD | Apr 29, 01:59 UTC | Apr 29, 14:45 UTC | 12h 46m |
| 2026-04-28 | KAL602 | CEB → ICN | Apr 28, 11:40 UTC | Apr 28, 21:05 UTC | 9h 25m |
| 2026-04-28 | KAL938 | VIE → ICN | Apr 28, 03:00 UTC | Apr 28, 03:15 UTC | 15m |
| 2026-04-27 | KAL938 | VIE → ICN | Apr 27, 16:45 UTC | Apr 28, 02:15 UTC | 9h 30m |
| 2026-04-27 | KAL937 | ICN → VIE | Apr 27, 03:25 UTC | Apr 27, 14:25 UTC | 11h 0m |
| 2026-04-27 | KAL937 | ICN → VIE | Apr 27, 02:05 UTC | Apr 27, 02:15 UTC | 10m |
| 2026-04-26 | KAL006 | - | Apr 26, 07:05 UTC | Apr 26, 19:45 UTC | 12h 40m |
| 2026-04-25 | KAL005 | - | Apr 25, 12:30 UTC | Apr 25, 23:10 UTC | 10h 40m |
| 2026-04-25 | KAL766 | CTS → ICN | Apr 25, 05:55 UTC | Apr 25, 08:35 UTC | 2h 40m |
| 2026-04-25 | KAL765 | ICN → CTS | Apr 25, 02:05 UTC | Apr 25, 04:05 UTC | 2h 0m |
| 2026-04-24 | KAL006 | - | Apr 24, 06:55 UTC | Apr 24, 19:15 UTC | 12h 20m |
| 2026-04-23 | KAL005 | - | Apr 23, 12:20 UTC | Apr 23, 22:40 UTC | 10h 19m |
| 2026-04-23 | KAL938 | VIE → ICN | Apr 23, 03:05 UTC | Apr 23, 03:25 UTC | 20m |
| 2026-04-22 | KAL938 | VIE → ICN | Apr 22, 16:50 UTC | Apr 23, 02:10 UTC | 9h 20m |
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 HL8007 page for operator, model, and routing details .