sensors Mode-S transponder
485B43
ICAO 24-bit transponder address · allocated to Netherlands
Currently assigned to PH-BKC · BOEING 787-10 Dreamliner
- Hex
- 485B43
- Octal
- 22055503
- Decimal
- 4,741,955
- Country
- NL
- Tail
- PH-BKC
- Type
- B78X
- Flights observed
- 203
- Distinct callsigns
- 20
- Country
- NL
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 485B43 falls within the block assigned to Netherlands (NL) by ICAO Annex 10, Volume III. Every aircraft registered in Netherlands 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 |
|---|---|---|---|
| KLM373 | - | 13 | 2026-06-24 |
| KLM282 | KLM Royal Dutch Airlines | 11 | 2026-06-24 |
| KLM879 | - | 10 | 2026-07-16 |
| KLM565 | - | 10 | 2026-07-09 |
| KLM745 | KLM Royal Dutch Airlines | 9 | 2026-06-23 |
| KLM569 | - | 9 | 2026-07-13 |
| KLM644 | - | 8 | 2026-07-01 |
| KLM603 | KLM Royal Dutch Airlines | 8 | 2026-05-02 |
| KLM174 | - | 8 | 2026-07-10 |
| KLM871 | KLM Royal Dutch Airlines | 7 | 2026-07-01 |
| KLM643 | - | 7 | 2026-06-30 |
| KLM602 | - | 7 | 2026-07-11 |
| KLM48 | - | 7 | 2026-06-17 |
| KLM880 | - | 6 | 2026-07-16 |
| KLM872 | - | 6 | 2026-07-01 |
| KLM611 | KLM Royal Dutch Airlines | 6 | 2026-06-17 |
| KLM604 | KLM Royal Dutch Airlines | 6 | 2026-05-03 |
| KLM601 | - | 6 | 2026-07-11 |
| KLM878 | - | 5 | 2026-07-12 |
| KLM705 | - | 5 | 2026-07-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | KLM705 | - | Jul 17, 11:30 UTC | Jul 17, 22:35 UTC | 11h 5m |
| 2026-07-16 | KLM880 | - | Jul 16, 19:50 UTC | Jul 17, 05:30 UTC | 9h 40m |
| 2026-07-16 | KLM879 | - | Jul 16, 17:14 UTC | Jul 16, 17:25 UTC | 10m |
| 2026-07-16 | KLM879 | - | Jul 16, 08:25 UTC | Jul 16, 15:45 UTC | 7h 20m |
| 2026-07-15 | KLM880 | - | Jul 15, 20:45 UTC | Jul 16, 05:30 UTC | 8h 45m |
| 2026-07-15 | KLM879 | - | Jul 15, 17:25 UTC | Jul 15, 17:40 UTC | 15m |
| 2026-07-15 | KLM879 | - | Jul 15, 08:35 UTC | Jul 15, 15:40 UTC | 7h 5m |
| 2026-07-14 | KLM880 | - | Jul 14, 20:50 UTC | Jul 15, 05:40 UTC | 8h 49m |
| 2026-07-14 | KLM880 | - | Jul 14, 19:55 UTC | Jul 14, 20:05 UTC | 10m |
| 2026-07-14 | KLM879 | - | Jul 14, 17:05 UTC | Jul 14, 17:20 UTC | 15m |
| 2026-07-14 | KLM879 | - | Jul 14, 08:30 UTC | Jul 14, 12:20 UTC | 3h 50m |
| 2026-07-13 | KLM569 | - | Jul 13, 10:50 UTC | Jul 14, 05:30 UTC | 18h 40m |
| 2026-07-13 | KLM569 | - | Jul 13, 08:50 UTC | Jul 14, 05:30 UTC | 20h 40m |
| 2026-07-13 | KLM569 | AMS → AMS | Jul 13, 08:25 UTC | Jul 14, 05:30 UTC | 21h 5m |
| 2026-07-12 | KLM878 | - | Jul 12, 20:50 UTC | Jul 13, 05:40 UTC | 8h 50m |
| 2026-07-12 | KLM877 | AMS → BOM | Jul 12, 10:25 UTC | Jul 12, 18:10 UTC | 7h 45m |
| 2026-07-11 | KLM602 | - | Jul 11, 21:10 UTC | Jul 12, 06:50 UTC | 9h 40m |
| 2026-07-11 | KLM601 | - | Jul 11, 08:20 UTC | Jul 11, 18:45 UTC | 10h 25m |
| 2026-07-10 | KLM174 | - | Jul 10, 00:55 UTC | Jul 10, 05:20 UTC | 4h 25m |
| 2026-07-09 | KLM565 | - | Jul 9, 11:00 UTC | Jul 9, 13:45 UTC | 2h 45m |
| 2026-07-08 | KLM602 | - | Jul 8, 21:05 UTC | Jul 9, 06:45 UTC | 9h 40m |
| 2026-07-08 | KLM601 | AMS → LAX | Jul 8, 08:25 UTC | Jul 8, 18:40 UTC | 10h 15m |
| 2026-07-08 | KLM174 | - | Jul 8, 00:55 UTC | Jul 8, 05:30 UTC | 4h 35m |
| 2026-07-07 | KLM565 | - | Jul 7, 10:30 UTC | Jul 7, 13:50 UTC | 3h 20m |
| 2026-07-06 | KLM602 | - | Jul 6, 21:10 UTC | Jul 7, 06:45 UTC | 9h 35m |
| 2026-07-06 | KLM601 | AMS → LAX | Jul 6, 08:15 UTC | Jul 6, 18:50 UTC | 10h 35m |
| 2026-07-05 | KLM564 | - | Jul 5, 23:10 UTC | Jul 6, 03:35 UTC | 4h 25m |
| 2026-07-05 | KLM563 | - | Jul 5, 08:50 UTC | Jul 5, 12:15 UTC | 3h 25m |
| 2026-07-04 | KLM706 | - | Jul 4, 01:15 UTC | Jul 4, 12:00 UTC | 10h 45m |
| 2026-07-03 | KLM705 | - | Jul 3, 11:20 UTC | Jul 3, 22:30 UTC | 11h 10m |
| 2026-07-03 | KLM174 | - | Jul 3, 01:00 UTC | Jul 3, 05:20 UTC | 4h 20m |
| 2026-07-02 | KLM565 | - | Jul 2, 10:55 UTC | Jul 2, 15:00 UTC | 4h 5m |
| 2026-07-01 | KLM872 | DEL → AMS | Jul 1, 22:40 UTC | Jul 2, 06:55 UTC | 8h 15m |
| 2026-07-01 | KLM871 | AMS → DEL | Jul 1, 12:55 UTC | Jul 1, 20:20 UTC | 7h 25m |
| 2026-07-01 | KLM644 | JFK → AMS | Jul 1, 03:45 UTC | Jul 1, 10:05 UTC | 6h 20m |
| 2026-06-30 | KLM643 | - | Jun 30, 15:35 UTC | Jun 30, 22:40 UTC | 7h 5m |
| 2026-06-28 | KLM602 | - | Jun 28, 21:04 UTC | Jun 29, 06:40 UTC | 9h 35m |
| 2026-06-28 | KLM601 | AMS → LAX | Jun 28, 08:14 UTC | Jun 28, 18:19 UTC | 10h 5m |
| 2026-06-27 | KLM878 | - | Jun 27, 20:49 UTC | Jun 28, 05:29 UTC | 8h 40m |
| 2026-06-27 | KLM877 | AMS → BOM | Jun 27, 10:10 UTC | Jun 27, 17:59 UTC | 7h 50m |
| 2026-06-27 | KLM602 | - | Jun 27, 01:44 UTC | Jun 27, 06:54 UTC | 5h 10m |
| 2026-06-26 | KLM602 | - | Jun 26, 20:59 UTC | Jun 27, 01:39 UTC | 4h 40m |
| 2026-06-26 | KLM601 | AMS → LAX | Jun 26, 08:20 UTC | Jun 26, 18:44 UTC | 10h 25m |
| 2026-06-26 | KLM174 | - | Jun 26, 00:55 UTC | Jun 26, 05:19 UTC | 4h 25m |
| 2026-06-25 | KLM565 | - | Jun 25, 10:39 UTC | Jun 25, 14:14 UTC | 3h 35m |
| 2026-06-24 | KLM282 | SFO → AMS | Jun 24, 21:44 UTC | Jun 25, 07:25 UTC | 9h 40m |
| 2026-06-24 | KLM373 | AMS → SFO | Jun 24, 08:09 UTC | Jun 24, 18:29 UTC | 10h 20m |
| 2026-06-23 | KLM296 | - | Jun 23, 22:15 UTC | Jun 24, 04:50 UTC | 6h 35m |
| 2026-06-23 | KLM225 | - | Jun 23, 11:40 UTC | Jun 23, 19:55 UTC | 8h 15m |
| 2026-06-23 | KLM745 | CTG → AMS | Jun 23, 00:19 UTC | Jun 23, 08:54 UTC | 8h 35m |
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 PH-BKC page for operator, model, and routing details .