sensors Mode-S transponder
4851F7
ICAO 24-bit transponder address · allocated to Netherlands
Currently assigned to PH-BVU · BOEING 777-300ER
- Hex
- 4851F7
- Octal
- 22050767
- Decimal
- 4,739,575
- Country
- NL
- Tail
- PH-BVU
- Type
- B77W
- Flights observed
- 71
- Distinct callsigns
- 20
- Country
- NL
- Last broadcast
- 15d ago
Last known position
Country allocation
The ICAO 24-bit address 4851F7 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 |
|---|---|---|---|
| KLM744 | KLM Royal Dutch Airlines | 5 | 2026-05-14 |
| KLM589 | KLM Royal Dutch Airlines | 5 | 2026-05-08 |
| KLM758 | KLM Royal Dutch Airlines | 4 | 2026-04-23 |
| KLM743 | KLM Royal Dutch Airlines | 4 | 2026-05-14 |
| KLM590 | KLM Royal Dutch Airlines | 4 | 2026-04-18 |
| KLM248 | KLM Royal Dutch Airlines | 4 | 2026-05-17 |
| KLM226 | KLM Royal Dutch Airlines | 4 | 2026-05-01 |
| KLM219 | KLM Royal Dutch Airlines | 4 | 2026-04-30 |
| KLM133 | - | 4 | 2026-05-16 |
| KLM791 | KLM Royal Dutch Airlines | 3 | 2026-05-12 |
| KLM757 | KLM Royal Dutch Airlines | 3 | 2026-04-23 |
| KLM268 | KLM Royal Dutch Airlines | 3 | 2026-05-04 |
| KLM105 | KLM Royal Dutch Airlines | 3 | 2026-04-26 |
| KLM104 | KLM Royal Dutch Airlines | 3 | 2026-04-27 |
| KLM872 | KLM Royal Dutch Airlines | 2 | 2026-04-25 |
| KLM792 | KLM Royal Dutch Airlines | 2 | 2026-05-13 |
| KLM188 | - | 2 | 2026-05-12 |
| KLM871 | KLM Royal Dutch Airlines | 1 | 2026-04-24 |
| KLM862 | KLM Royal Dutch Airlines | 1 | 2026-05-02 |
| KLM861 | KLM Royal Dutch Airlines | 1 | 2026-05-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-18 | KLM844 | BKK → AMS | May 18, 05:10 UTC | May 18, 16:25 UTC | 11h 15m |
| 2026-05-17 | KLM843 | BKK → TPE | May 17, 15:50 UTC | May 18, 02:35 UTC | 10h 45m |
| 2026-05-17 | KLM248 | ATL → AMS | May 17, 02:55 UTC | May 17, 10:35 UTC | 7h 40m |
| 2026-05-16 | KLM133 | - | May 16, 15:20 UTC | May 17, 00:10 UTC | 8h 50m |
| 2026-05-16 | KLM248 | ATL → AMS | May 16, 02:55 UTC | May 16, 10:40 UTC | 7h 46m |
| 2026-05-15 | KLM133 | - | May 15, 15:40 UTC | May 16, 00:15 UTC | 8h 35m |
| 2026-05-14 | KLM744 | LIM → AMS | May 14, 23:00 UTC | May 15, 10:45 UTC | 11h 45m |
| 2026-05-14 | KLM743 | AMS → LIM | May 14, 08:35 UTC | May 14, 20:10 UTC | 11h 35m |
| 2026-05-13 | KLM792 | GRU → AMS | May 13, 01:15 UTC | May 13, 11:45 UTC | 10h 30m |
| 2026-05-12 | KLM791 | AMS → GRU | May 12, 20:50 UTC | May 12, 23:01 UTC | 2h 10m |
| 2026-05-12 | KLM791 | AMS → GRU | May 12, 11:45 UTC | May 12, 20:45 UTC | 9h 0m |
| 2026-05-12 | KLM188 | - | May 12, 06:15 UTC | May 12, 07:55 UTC | 1h 40m |
| 2026-05-11 | KLM188 | AMS → AMS | May 11, 12:05 UTC | May 12, 07:55 UTC | 19h 51m |
| 2026-05-11 | KLM646 | JFK → AMS | May 11, 00:00 UTC | May 11, 06:25 UTC | 6h 25m |
| 2026-05-10 | KLM207 | AMS → JFK | May 10, 13:30 UTC | May 10, 20:54 UTC | 7h 25m |
| 2026-05-09 | KLM744 | LIM → AMS | May 9, 23:50 UTC | May 10, 10:05 UTC | 10h 15m |
| 2026-05-09 | KLM743 | AMS → LIM | May 9, 08:45 UTC | May 9, 20:00 UTC | 11h 15m |
| 2026-05-08 | KLM589 | AMS → ACC | May 8, 13:30 UTC | May 9, 04:35 UTC | 15h 5m |
| 2026-05-07 | KLM744 | LIM → AMS | May 7, 16:15 UTC | May 8, 10:25 UTC | 18h 9m |
| 2026-05-07 | KLM744 | LIM → AMS | May 7, 09:50 UTC | May 8, 09:44 UTC | 23h 55m |
| 2026-05-07 | KLM743 | AMS → LIM | May 7, 08:40 UTC | May 8, 02:14 UTC | 17h 35m |
| 2026-05-05 | KLM589 | AMS → ACC | May 5, 13:25 UTC | May 6, 04:40 UTC | 15h 15m |
| 2026-05-04 | KLM744 | LIM → AMS | May 4, 23:15 UTC | May 5, 10:45 UTC | 11h 30m |
| 2026-05-04 | KLM743 | AMS → LIM | May 4, 08:35 UTC | May 4, 20:05 UTC | 11h 31m |
| 2026-05-04 | KLM268 | PBM → AMS | May 4, 02:39 UTC | May 4, 04:00 UTC | 1h 20m |
| 2026-05-03 | KLM268 | PBM → AMS | May 3, 07:50 UTC | May 4, 04:00 UTC | 20h 10m |
| 2026-05-03 | KLM268 | PBM → AMS | May 3, 07:25 UTC | May 4, 04:00 UTC | 20h 35m |
| 2026-05-02 | KLM862 | NRT → AMS | May 2, 04:00 UTC | May 2, 17:10 UTC | 13h 10m |
| 2026-05-01 | KLM861 | AMS → NRT | May 1, 12:15 UTC | May 2, 01:15 UTC | 13h 0m |
| 2026-05-01 | KLM226 | - | May 1, 01:10 UTC | May 1, 09:50 UTC | 8h 40m |
| 2026-04-30 | KLM219 | AMS → YVR | Apr 30, 14:00 UTC | Apr 30, 23:00 UTC | 9h 0m |
| 2026-04-30 | KLM248 | ATL → AMS | Apr 30, 02:50 UTC | Apr 30, 11:00 UTC | 8h 10m |
| 2026-04-29 | KLM133 | - | Apr 29, 15:25 UTC | Apr 30, 00:00 UTC | 8h 34m |
| 2026-04-29 | KLM248 | ATL → AMS | Apr 29, 03:04 UTC | Apr 29, 11:00 UTC | 7h 56m |
| 2026-04-28 | KLM133 | - | Apr 28, 15:30 UTC | Apr 29, 00:00 UTC | 8h 30m |
| 2026-04-28 | KLM792 | GRU → AMS | Apr 28, 01:05 UTC | Apr 28, 12:00 UTC | 10h 55m |
| 2026-04-27 | KLM791 | AMS → GRU | Apr 27, 11:30 UTC | Apr 27, 22:35 UTC | 11h 5m |
| 2026-04-27 | KLM104 | AMS → JNB | Apr 27, 02:20 UTC | Apr 27, 08:45 UTC | 6h 25m |
| 2026-04-26 | KLM105 | - | Apr 26, 19:15 UTC | Apr 26, 19:25 UTC | 10m |
| 2026-04-26 | KLM105 | - | Apr 26, 08:35 UTC | Apr 26, 15:05 UTC | 6h 30m |
| 2026-04-25 | KLM565 | AMS → NBO | Apr 25, 10:35 UTC | Apr 25, 14:05 UTC | 3h 30m |
| 2026-04-25 | KLM872 | DEL → AMS | Apr 25, 07:05 UTC | Apr 25, 07:35 UTC | 30m |
| 2026-04-24 | KLM872 | DEL → AMS | Apr 24, 22:50 UTC | Apr 25, 03:55 UTC | 5h 5m |
| 2026-04-24 | KLM871 | AMS → DEL | Apr 24, 13:10 UTC | Apr 24, 20:35 UTC | 7h 25m |
| 2026-04-23 | KLM758 | PTY → AMS | Apr 23, 16:10 UTC | Apr 24, 09:35 UTC | 17h 24m |
| 2026-04-23 | KLM757 | AMS → PTY | Apr 23, 11:50 UTC | Apr 24, 09:35 UTC | 21h 44m |
| 2026-04-23 | KLM757 | AMS → PTY | Apr 23, 11:20 UTC | Apr 24, 09:35 UTC | 22h 14m |
| 2026-04-22 | KLM592 | JNB → AMS | Apr 22, 21:25 UTC | Apr 23, 08:01 UTC | 10h 36m |
| 2026-04-22 | KLM591 | AMS → JNB | Apr 22, 09:10 UTC | Apr 22, 19:10 UTC | 10h 0m |
| 2026-04-21 | KLM836 | SIN → AMS | Apr 21, 17:15 UTC | Apr 22, 06:05 UTC | 12h 50m |
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-BVU page for operator, model, and routing details .