sensors Mode-S transponder
71BE44
ICAO 24-bit transponder address · allocated to Korea, South
Currently assigned to HL7644 · BOEING 747-8
- Hex
- 71BE44
- Octal
- 34337104
- Decimal
- 7,454,276
- Country
- KR
- Tail
- HL7644
- Type
- B748
- Flights observed
- 57
- Distinct callsigns
- 10
- Country
- KR
- Last broadcast
- 18h ago
Last known position
Country allocation
The ICAO 24-bit address 71BE44 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 10 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| KAL018 | Korean Air | 21 | 2026-05-28 |
| KAL017 | Korean Air | 18 | 2026-05-28 |
| KAL011 | Korean Air | 4 | 2026-05-17 |
| KAL8016 | - | 3 | 2026-05-22 |
| KAL8015 | Korean Air | 3 | 2026-05-22 |
| KAL012 | Korean Air | 3 | 2026-05-18 |
| KAL703 | Korean Air | 2 | 2026-04-26 |
| KAL704 | Korean Air | 1 | 2026-04-26 |
| KAL2002 | Korean Air | 1 | 2026-05-19 |
| KAL2001 | Korean Air | 1 | 2026-05-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | KAL018 | LAX → ICN | May 28, 19:50 UTC | May 29, 08:40 UTC | 12h 50m |
| 2026-05-28 | KAL017 | ICN → LAX | May 28, 06:00 UTC | May 28, 16:30 UTC | 10h 30m |
| 2026-05-26 | KAL018 | LAX → ICN | May 26, 20:05 UTC | May 27, 08:40 UTC | 12h 36m |
| 2026-05-26 | KAL017 | ICN → LAX | May 26, 05:54 UTC | May 26, 16:30 UTC | 10h 35m |
| 2026-05-24 | KAL018 | LAX → ICN | May 24, 19:50 UTC | May 25, 08:05 UTC | 12h 15m |
| 2026-05-24 | KAL017 | ICN → LAX | May 24, 05:50 UTC | May 24, 16:25 UTC | 10h 35m |
| 2026-05-22 | KAL8016 | - | May 22, 17:35 UTC | May 23, 06:40 UTC | 13h 4m |
| 2026-05-22 | KAL8015 | ICN → LAX | May 22, 03:55 UTC | May 22, 14:05 UTC | 10h 10m |
| 2026-05-20 | KAL8016 | - | May 20, 17:25 UTC | May 21, 05:55 UTC | 12h 30m |
| 2026-05-20 | KAL8015 | ICN → LAX | May 20, 04:00 UTC | May 20, 14:15 UTC | 10h 16m |
| 2026-05-19 | KAL2002 | HKG → ICN | May 19, 04:40 UTC | May 19, 07:45 UTC | 3h 5m |
| 2026-05-18 | KAL2001 | ICN → HKG | May 18, 23:30 UTC | May 19, 02:30 UTC | 3h 0m |
| 2026-05-18 | KAL012 | LAX → ICN | May 18, 07:20 UTC | May 18, 19:55 UTC | 12h 34m |
| 2026-05-17 | KAL011 | ICN → LAX | May 17, 11:05 UTC | May 17, 21:20 UTC | 10h 15m |
| 2026-05-15 | KAL018 | LAX → ICN | May 15, 19:50 UTC | May 16, 08:16 UTC | 12h 26m |
| 2026-05-15 | KAL017 | ICN → LAX | May 15, 06:00 UTC | May 15, 16:45 UTC | 10h 44m |
| 2026-05-13 | KAL018 | LAX → ICN | May 13, 19:50 UTC | May 14, 08:05 UTC | 12h 15m |
| 2026-05-13 | KAL017 | ICN → LAX | May 13, 06:20 UTC | May 13, 17:05 UTC | 10h 45m |
| 2026-05-11 | KAL8016 | - | May 11, 17:25 UTC | May 12, 05:20 UTC | 11h 55m |
| 2026-05-11 | KAL8015 | ICN → LAX | May 11, 03:55 UTC | May 11, 14:25 UTC | 10h 30m |
| 2026-05-09 | KAL018 | LAX → ICN | May 9, 19:49 UTC | May 10, 08:00 UTC | 12h 10m |
| 2026-05-09 | KAL017 | ICN → LAX | May 9, 05:55 UTC | May 9, 16:05 UTC | 10h 10m |
| 2026-05-07 | KAL018 | LAX → ICN | May 7, 19:55 UTC | May 8, 08:09 UTC | 12h 15m |
| 2026-05-07 | KAL017 | ICN → LAX | May 7, 05:50 UTC | May 7, 16:20 UTC | 10h 30m |
| 2026-05-05 | KAL018 | LAX → ICN | May 5, 19:50 UTC | May 6, 08:20 UTC | 12h 30m |
| 2026-05-05 | KAL017 | ICN → LAX | May 5, 06:05 UTC | May 5, 16:35 UTC | 10h 30m |
| 2026-05-01 | KAL018 | LAX → ICN | May 1, 19:55 UTC | May 2, 08:35 UTC | 12h 40m |
| 2026-05-01 | KAL017 | ICN → LAX | May 1, 05:55 UTC | May 1, 16:15 UTC | 10h 20m |
| 2026-04-29 | KAL018 | LAX → ICN | Apr 29, 19:45 UTC | Apr 30, 07:55 UTC | 12h 9m |
| 2026-04-29 | KAL017 | ICN → LAX | Apr 29, 05:55 UTC | Apr 29, 15:50 UTC | 9h 56m |
| 2026-04-27 | KAL018 | LAX → ICN | Apr 27, 19:45 UTC | Apr 28, 08:50 UTC | 13h 5m |
| 2026-04-27 | KAL017 | ICN → LAX | Apr 27, 06:00 UTC | Apr 27, 16:20 UTC | 10h 20m |
| 2026-04-26 | KAL704 | NRT → ICN | Apr 26, 05:20 UTC | Apr 26, 07:30 UTC | 2h 10m |
| 2026-04-26 | KAL703 | ICN → NRT | Apr 26, 02:50 UTC | Apr 26, 03:30 UTC | 40m |
| 2026-04-26 | KAL703 | ICN → NRT | Apr 26, 01:35 UTC | Apr 26, 02:00 UTC | 25m |
| 2026-04-25 | KAL012 | LAX → ICN | Apr 25, 07:25 UTC | Apr 25, 19:25 UTC | 12h 0m |
| 2026-04-24 | KAL011 | ICN → LAX | Apr 24, 11:30 UTC | Apr 24, 21:35 UTC | 10h 5m |
| 2026-04-23 | KAL018 | LAX → ICN | Apr 23, 19:40 UTC | Apr 24, 08:00 UTC | 12h 20m |
| 2026-04-23 | KAL017 | ICN → LAX | Apr 23, 05:55 UTC | Apr 23, 16:00 UTC | 10h 5m |
| 2026-04-18 | KAL012 | LAX → ICN | Apr 18, 07:35 UTC | Apr 18, 19:55 UTC | 12h 20m |
| 2026-04-17 | KAL011 | ICN → LAX | Apr 17, 20:25 UTC | Apr 17, 21:20 UTC | 55m |
| 2026-04-17 | KAL011 | ICN → LAX | Apr 17, 11:20 UTC | Apr 17, 12:55 UTC | 1h 35m |
| 2026-04-17 | KAL018 | LAX → ICN | Apr 17, 07:35 UTC | Apr 17, 08:10 UTC | 35m |
| 2026-04-17 | KAL018 | LAX → ICN | Apr 17, 06:00 UTC | Apr 17, 06:35 UTC | 35m |
| 2026-04-16 | KAL018 | LAX → ICN | Apr 16, 19:45 UTC | Apr 16, 20:45 UTC | 1h 0m |
| 2026-04-16 | KAL017 | ICN → LAX | Apr 16, 15:25 UTC | Apr 16, 16:30 UTC | 1h 5m |
| 2026-04-16 | KAL017 | ICN → LAX | Apr 16, 07:09 UTC | Apr 16, 07:45 UTC | 35m |
| 2026-04-16 | KAL017 | ICN → LAX | Apr 16, 06:00 UTC | Apr 16, 07:05 UTC | 1h 5m |
| 2026-04-15 | KAL018 | LAX → ICN | Apr 15, 07:05 UTC | Apr 15, 08:05 UTC | 1h 0m |
| 2026-04-15 | KAL018 | LAX → ICN | Apr 15, 06:05 UTC | Apr 15, 06:35 UTC | 30m |
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 HL7644 page for operator, model, and routing details .