sensors Mode-S transponder
4851B0
ICAO 24-bit transponder address · allocated to Netherlands
Currently assigned to PH-BHE · BOEING 787-9 Dreamliner
- Hex
- 4851B0
- Octal
- 22050660
- Decimal
- 4,739,504
- Country
- NL
- Tail
- PH-BHE
- Type
- B789
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- NL
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 4851B0 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 |
|---|---|---|---|
| KLM809 | KLM Royal Dutch Airlines | 12 | 2026-05-23 |
| KLM855 | KLM Royal Dutch Airlines | 11 | 2026-05-26 |
| KLM810 | KLM Royal Dutch Airlines | 11 | 2026-05-23 |
| KLM856 | KLM Royal Dutch Airlines | 10 | 2026-05-26 |
| KLM867 | KLM Royal Dutch Airlines | 8 | 2026-05-21 |
| KLM749 | KLM Royal Dutch Airlines | 8 | 2026-04-15 |
| KLM868 | KLM Royal Dutch Airlines | 7 | 2026-05-22 |
| KLM897 | KLM Royal Dutch Airlines | 5 | 2026-05-29 |
| KLM639 | KLM Royal Dutch Airlines | 4 | 2026-04-16 |
| KLM898 | KLM Royal Dutch Airlines | 3 | 2026-05-04 |
| KLM751 | KLM Royal Dutch Airlines | 3 | 2026-05-28 |
| KLM640 | KLM Royal Dutch Airlines | 3 | 2026-04-17 |
| KLM845 | KLM Royal Dutch Airlines | 2 | 2026-05-24 |
| KLM166 | KLM Royal Dutch Airlines | 2 | 2026-05-02 |
| KLM115 | KLM Royal Dutch Airlines | 2 | 2026-05-02 |
| KLM888 | KLM Royal Dutch Airlines | 1 | 2026-04-19 |
| KLM887 | KLM Royal Dutch Airlines | 1 | 2026-04-18 |
| KLM846 | KLM Royal Dutch Airlines | 1 | 2026-05-25 |
| KLM844 | KLM Royal Dutch Airlines | 1 | 2026-05-13 |
| KLM843 | KLM Royal Dutch Airlines | 1 | 2026-05-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | KLM897 | AMS → PEK | May 29, 14:15 UTC | May 30, 14:00 UTC | 23h 45m |
| 2026-05-28 | KLM751 | GYE → AMS | May 28, 16:50 UTC | May 29, 10:25 UTC | 17h 35m |
| 2026-05-28 | KLM751 | GYE → AMS | May 28, 10:05 UTC | May 29, 10:00 UTC | 23h 55m |
| 2026-05-28 | KLM751 | GYE → AMS | May 28, 08:50 UTC | May 29, 03:00 UTC | 18h 10m |
| 2026-05-27 | KLM250 | AMS → MSP | May 27, 20:20 UTC | May 28, 03:50 UTC | 7h 30m |
| 2026-05-27 | KLM655 | AMS → MSP | May 27, 09:20 UTC | May 27, 17:20 UTC | 8h 0m |
| 2026-05-26 | KLM856 | ICN → AMS | May 26, 13:45 UTC | May 27, 02:59 UTC | 13h 15m |
| 2026-05-26 | KLM855 | AMS → ICN | May 26, 06:49 UTC | May 26, 07:15 UTC | 25m |
| 2026-05-25 | KLM855 | AMS → ICN | May 25, 19:54 UTC | May 26, 05:59 UTC | 10h 5m |
| 2026-05-25 | KLM846 | ICN → AMS | May 25, 01:55 UTC | May 25, 13:30 UTC | 11h 35m |
| 2026-05-24 | KLM845 | AMS → ICN | May 24, 23:00 UTC | May 24, 23:20 UTC | 20m |
| 2026-05-24 | KLM845 | AMS → ICN | May 24, 12:55 UTC | May 24, 21:45 UTC | 8h 50m |
| 2026-05-23 | KLM810 | KUL → AMS | May 23, 20:05 UTC | May 24, 04:45 UTC | 8h 40m |
| 2026-05-23 | KLM810 | KUL → AMS | May 23, 16:20 UTC | May 23, 16:30 UTC | 10m |
| 2026-05-23 | KLM810 | KUL → AMS | May 23, 12:55 UTC | May 23, 14:35 UTC | 1h 40m |
| 2026-05-23 | KLM809 | AMS → KUL | May 23, 10:50 UTC | May 23, 11:05 UTC | 15m |
| 2026-05-23 | KLM809 | AMS → KUL | May 23, 09:20 UTC | May 23, 10:15 UTC | 55m |
| 2026-05-22 | KLM809 | AMS → KUL | May 22, 19:45 UTC | May 23, 07:45 UTC | 11h 59m |
| 2026-05-22 | KLM868 | KIX → AMS | May 22, 03:15 UTC | May 22, 16:50 UTC | 13h 35m |
| 2026-05-21 | KLM867 | AMS → KIX | May 21, 12:35 UTC | May 22, 01:00 UTC | 12h 25m |
| 2026-05-20 | KLM856 | ICN → AMS | May 20, 15:00 UTC | May 21, 02:50 UTC | 11h 50m |
| 2026-05-20 | KLM856 | ICN → AMS | May 20, 13:40 UTC | May 20, 14:00 UTC | 20m |
| 2026-05-20 | KLM855 | AMS → ICN | May 20, 07:10 UTC | May 20, 07:35 UTC | 25m |
| 2026-05-19 | KLM855 | AMS → ICN | May 19, 20:15 UTC | May 20, 06:20 UTC | 10h 6m |
| 2026-05-19 | KLM868 | KIX → AMS | May 19, 03:15 UTC | May 19, 17:00 UTC | 13h 45m |
| 2026-05-18 | KLM867 | AMS → KIX | May 18, 12:40 UTC | May 19, 01:05 UTC | 12h 24m |
| 2026-05-14 | KLM856 | ICN → AMS | May 14, 18:55 UTC | May 15, 02:30 UTC | 7h 35m |
| 2026-05-14 | KLM856 | ICN → AMS | May 14, 13:40 UTC | May 14, 13:50 UTC | 10m |
| 2026-05-14 | KLM855 | AMS → ICN | May 14, 07:00 UTC | May 14, 07:20 UTC | 20m |
| 2026-05-13 | KLM855 | AMS → ICN | May 13, 19:50 UTC | May 14, 00:15 UTC | 4h 25m |
| 2026-05-13 | KLM844 | BKK → AMS | May 13, 06:05 UTC | May 13, 17:30 UTC | 11h 25m |
| 2026-05-12 | KLM843 | BKK → TPE | May 12, 15:30 UTC | May 13, 01:55 UTC | 10h 25m |
| 2026-05-11 | KLM856 | ICN → AMS | May 11, 13:40 UTC | May 11, 22:35 UTC | 8h 55m |
| 2026-05-10 | KLM855 | AMS → ICN | May 10, 19:54 UTC | May 10, 23:55 UTC | 4h 0m |
| 2026-05-10 | KLM868 | KIX → AMS | May 10, 03:10 UTC | May 10, 16:34 UTC | 13h 25m |
| 2026-05-09 | KLM867 | AMS → KIX | May 9, 12:55 UTC | May 10, 01:14 UTC | 12h 20m |
| 2026-05-07 | KLM686 | MEX → AMS | May 7, 03:10 UTC | May 7, 12:35 UTC | 9h 25m |
| 2026-05-06 | KLM685 | AMS → MEX | May 6, 12:45 UTC | May 6, 23:50 UTC | 11h 4m |
| 2026-05-05 | KLM810 | KUL → AMS | May 5, 19:35 UTC | May 6, 05:30 UTC | 9h 55m |
| 2026-05-05 | KLM810 | KUL → AMS | May 5, 17:10 UTC | May 5, 17:20 UTC | 10m |
| 2026-05-05 | KLM810 | KUL → AMS | May 5, 13:30 UTC | May 5, 14:55 UTC | 1h 25m |
| 2026-05-05 | KLM809 | AMS → KUL | May 5, 09:20 UTC | May 5, 10:50 UTC | 1h 30m |
| 2026-05-05 | KLM809 | AMS → KUL | May 5, 06:50 UTC | May 5, 07:20 UTC | 30m |
| 2026-05-04 | KLM809 | AMS → KUL | May 4, 19:30 UTC | May 5, 04:05 UTC | 8h 35m |
| 2026-05-04 | KLM898 | PEK → AMS | May 4, 03:00 UTC | May 4, 14:40 UTC | 11h 40m |
| 2026-05-04 | KLM897 | AMS → PEK | May 4, 00:05 UTC | May 4, 00:25 UTC | 20m |
| 2026-05-03 | KLM897 | AMS → PEK | May 3, 14:00 UTC | May 3, 18:09 UTC | 4h 10m |
| 2026-05-02 | KLM166 | - | May 2, 23:25 UTC | May 3, 08:10 UTC | 8h 44m |
| 2026-05-02 | KLM115 | LEY → LEY | May 2, 11:00 UTC | May 2, 20:45 UTC | 9h 45m |
| 2026-05-01 | KLM856 | ICN → AMS | May 1, 14:55 UTC | May 2, 02:40 UTC | 11h 46m |
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-BHE page for operator, model, and routing details .