sensors Mode-S transponder
71BD32
ICAO 24-bit transponder address · allocated to Korea, South
Currently assigned to HL7532 · BOEING 777-300
- Hex
- 71BD32
- Octal
- 34336462
- Decimal
- 7,454,002
- Country
- KR
- Tail
- HL7532
- Type
- B773
- Flights observed
- 171
- Distinct callsigns
- 20
- Country
- KR
- Last broadcast
- 16m ago
Last known position
Country allocation
The ICAO 24-bit address 71BD32 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 |
|---|---|---|---|
| KAL416 | - | 32 | 2026-07-17 |
| KAL766 | - | 23 | 2026-07-09 |
| KAL765 | - | 23 | 2026-07-18 |
| KAL602 | - | 20 | 2026-07-09 |
| KAL622 | - | 14 | 2026-06-21 |
| KAL621 | - | 13 | 2026-06-20 |
| KAL624 | Korean Air | 9 | 2026-05-23 |
| KAL623 | Korean Air | 9 | 2026-05-23 |
| KAL415 | - | 9 | 2026-07-15 |
| KAL601 | - | 8 | 2026-06-30 |
| KAL881 | - | 2 | 2026-07-10 |
| KAL8418 | Korean Air | 1 | 2026-04-17 |
| KAL8417 | - | 1 | 2026-04-17 |
| KAL708 | - | 1 | 2026-06-03 |
| KAL707 | - | 1 | 2026-06-03 |
| KAL706 | - | 1 | 2026-07-06 |
| KAL705 | - | 1 | 2026-07-05 |
| KAL442 | Korean Air | 1 | 2026-04-24 |
| KAL166 | Korean Air | 1 | 2026-06-03 |
| KAL165 | Korean Air | 1 | 2026-06-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | KAL765 | - | Jul 18, 02:05 UTC | Jul 18, 04:20 UTC | 2h 16m |
| 2026-07-17 | KAL416 | ICN → ICN | Jul 17, 01:25 UTC | Jul 17, 11:30 UTC | 10h 5m |
| 2026-07-16 | KAL416 | - | Jul 16, 01:30 UTC | Jul 16, 11:10 UTC | 9h 40m |
| 2026-07-15 | KAL415 | - | Jul 15, 01:25 UTC | Jul 15, 11:10 UTC | 9h 45m |
| 2026-07-14 | KAL416 | - | Jul 14, 01:30 UTC | Jul 14, 11:15 UTC | 9h 45m |
| 2026-07-13 | KAL416 | - | Jul 13, 01:25 UTC | Jul 13, 11:20 UTC | 9h 55m |
| 2026-07-12 | KAL416 | - | Jul 12, 01:35 UTC | Jul 12, 11:20 UTC | 9h 45m |
| 2026-07-10 | KAL881 | - | Jul 10, 23:45 UTC | Jul 11, 05:05 UTC | 5h 20m |
| 2026-07-10 | KAL415 | - | Jul 10, 01:25 UTC | Jul 10, 11:10 UTC | 9h 45m |
| 2026-07-09 | KAL602 | - | Jul 9, 11:45 UTC | Jul 9, 21:30 UTC | 9h 45m |
| 2026-07-09 | KAL766 | - | Jul 9, 06:30 UTC | Jul 9, 08:55 UTC | 2h 25m |
| 2026-07-09 | KAL765 | - | Jul 9, 02:05 UTC | Jul 9, 04:25 UTC | 2h 20m |
| 2026-07-08 | KAL602 | - | Jul 8, 11:35 UTC | Jul 8, 21:00 UTC | 9h 25m |
| 2026-07-08 | KAL766 | - | Jul 8, 06:05 UTC | Jul 8, 08:35 UTC | 2h 30m |
| 2026-07-08 | KAL765 | - | Jul 8, 02:10 UTC | Jul 8, 04:20 UTC | 2h 10m |
| 2026-07-07 | KAL602 | - | Jul 7, 11:45 UTC | Jul 7, 21:30 UTC | 9h 45m |
| 2026-07-06 | KAL602 | - | Jul 6, 11:35 UTC | Jul 6, 21:15 UTC | 9h 40m |
| 2026-07-06 | KAL706 | - | Jul 6, 00:35 UTC | Jul 6, 02:45 UTC | 2h 10m |
| 2026-07-05 | KAL705 | - | Jul 5, 10:00 UTC | Jul 5, 11:40 UTC | 1h 40m |
| 2026-07-04 | KAL602 | - | Jul 4, 11:35 UTC | Jul 4, 21:10 UTC | 9h 35m |
| 2026-07-04 | KAL766 | - | Jul 4, 06:05 UTC | Jul 4, 08:20 UTC | 2h 15m |
| 2026-07-04 | KAL765 | ICN → CTS | Jul 4, 01:55 UTC | Jul 4, 04:05 UTC | 2h 10m |
| 2026-07-03 | KAL416 | - | Jul 3, 01:30 UTC | Jul 3, 11:35 UTC | 10h 5m |
| 2026-07-02 | KAL602 | - | Jul 2, 11:45 UTC | Jul 2, 21:15 UTC | 9h 30m |
| 2026-07-02 | KAL766 | - | Jul 2, 06:15 UTC | Jul 2, 08:35 UTC | 2h 20m |
| 2026-07-02 | KAL765 | - | Jul 2, 02:00 UTC | Jul 2, 04:05 UTC | 2h 5m |
| 2026-07-01 | KAL415 | - | Jul 1, 01:40 UTC | Jul 1, 11:20 UTC | 9h 40m |
| 2026-06-30 | KAL602 | - | Jun 30, 20:20 UTC | Jun 30, 21:00 UTC | 40m |
| 2026-06-30 | KAL601 | - | Jun 30, 11:30 UTC | Jun 30, 12:05 UTC | 35m |
| 2026-06-30 | KAL766 | - | Jun 30, 06:05 UTC | Jun 30, 08:30 UTC | 2h 25m |
| 2026-06-30 | KAL765 | - | Jun 30, 01:50 UTC | Jun 30, 04:05 UTC | 2h 15m |
| 2026-06-29 | KAL415 | - | Jun 29, 01:39 UTC | Jun 29, 11:35 UTC | 9h 55m |
| 2026-06-28 | KAL416 | - | Jun 28, 01:25 UTC | Jun 28, 11:19 UTC | 9h 55m |
| 2026-06-27 | KAL601 | ICN → ICN | Jun 27, 11:39 UTC | Jun 27, 21:25 UTC | 9h 45m |
| 2026-06-27 | KAL766 | - | Jun 27, 06:35 UTC | Jun 27, 09:00 UTC | 2h 25m |
| 2026-06-27 | KAL765 | - | Jun 27, 02:35 UTC | Jun 27, 04:39 UTC | 2h 5m |
| 2026-06-26 | KAL415 | - | Jun 26, 01:34 UTC | Jun 26, 11:40 UTC | 10h 5m |
| 2026-06-25 | KAL416 | - | Jun 25, 01:35 UTC | Jun 25, 11:39 UTC | 10h 5m |
| 2026-06-24 | KAL601 | - | Jun 24, 11:50 UTC | Jun 24, 21:44 UTC | 9h 55m |
| 2026-06-24 | KAL766 | - | Jun 24, 06:04 UTC | Jun 24, 08:24 UTC | 2h 20m |
| 2026-06-24 | KAL765 | - | Jun 24, 01:49 UTC | Jun 24, 04:05 UTC | 2h 15m |
| 2026-06-23 | KAL416 | - | Jun 23, 01:20 UTC | Jun 23, 11:35 UTC | 10h 15m |
| 2026-06-22 | KAL602 | - | Jun 22, 11:30 UTC | Jun 22, 21:25 UTC | 9h 55m |
| 2026-06-22 | KAL766 | - | Jun 22, 06:10 UTC | Jun 22, 08:35 UTC | 2h 25m |
| 2026-06-22 | KAL765 | - | Jun 22, 02:04 UTC | Jun 22, 04:09 UTC | 2h 5m |
| 2026-06-21 | KAL622 | - | Jun 21, 04:44 UTC | Jun 21, 08:10 UTC | 3h 25m |
| 2026-06-20 | KAL621 | - | Jun 20, 23:14 UTC | Jun 21, 02:30 UTC | 3h 15m |
| 2026-06-20 | KAL766 | - | Jun 20, 06:10 UTC | Jun 20, 08:29 UTC | 2h 20m |
| 2026-06-20 | KAL765 | - | Jun 20, 02:09 UTC | Jun 20, 04:24 UTC | 2h 15m |
| 2026-06-19 | KAL602 | ICN → ICN | Jun 19, 11:49 UTC | Jun 19, 21:30 UTC | 9h 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 HL7532 page for operator, model, and routing details .