sensors Mode-S transponder
4851F5
ICAO 24-bit transponder address · allocated to Netherlands
Currently assigned to PH-BVR · BOEING 777-300ER
- Hex
- 4851F5
- Octal
- 22050765
- Decimal
- 4,739,573
- Country
- NL
- Tail
- PH-BVR
- Type
- B77W
- Flights observed
- 100
- Distinct callsigns
- 20
- Country
- NL
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 4851F5 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 |
|---|---|---|---|
| KLM758 | KLM Royal Dutch Airlines | 11 | 2026-05-20 |
| KLM835 | KLM Royal Dutch Airlines | 9 | 2026-05-18 |
| KLM836 | KLM Royal Dutch Airlines | 8 | 2026-05-19 |
| KLM188 | - | 8 | 2026-05-15 |
| KLM104 | KLM Royal Dutch Airlines | 7 | 2026-05-13 |
| KLM590 | KLM Royal Dutch Airlines | 6 | 2026-05-27 |
| KLM757 | KLM Royal Dutch Airlines | 4 | 2026-05-16 |
| KLM706 | KLM Royal Dutch Airlines | 4 | 2026-04-15 |
| KLM105 | KLM Royal Dutch Airlines | 4 | 2026-05-12 |
| KLM743 | KLM Royal Dutch Airlines | 3 | 2026-05-29 |
| KLM705 | KLM Royal Dutch Airlines | 3 | 2026-04-14 |
| KLM592 | KLM Royal Dutch Airlines | 3 | 2026-05-03 |
| KLM591 | KLM Royal Dutch Airlines | 3 | 2026-05-03 |
| KLM571 | KLM Royal Dutch Airlines | 3 | 2026-05-28 |
| KLM872 | KLM Royal Dutch Airlines | 2 | 2026-05-08 |
| KLM871 | KLM Royal Dutch Airlines | 2 | 2026-05-08 |
| KLM744 | KLM Royal Dutch Airlines | 2 | 2026-05-26 |
| KLM874 | KLM Royal Dutch Airlines | 1 | 2026-05-05 |
| KLM873 | KLM Royal Dutch Airlines | 1 | 2026-05-05 |
| KLM792 | KLM Royal Dutch Airlines | 1 | 2026-04-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | KLM743 | AMS → LIM | May 29, 08:15 UTC | May 29, 20:05 UTC | 11h 50m |
| 2026-05-28 | KLM571 | DAR → AMS | May 28, 11:20 UTC | May 29, 05:25 UTC | 18h 5m |
| 2026-05-28 | KLM571 | DAR → AMS | May 28, 09:20 UTC | May 29, 05:25 UTC | 20h 5m |
| 2026-05-28 | KLM571 | DAR → AMS | May 28, 08:40 UTC | May 29, 05:25 UTC | 20h 45m |
| 2026-05-27 | KLM590 | ACC → AMS | May 27, 13:25 UTC | May 28, 04:25 UTC | 15h 0m |
| 2026-05-26 | KLM744 | LIM → AMS | May 26, 22:59 UTC | May 27, 10:30 UTC | 11h 31m |
| 2026-05-26 | KLM743 | AMS → LIM | May 26, 08:54 UTC | May 26, 20:34 UTC | 11h 40m |
| 2026-05-25 | KLM744 | LIM → AMS | May 25, 08:50 UTC | May 25, 10:35 UTC | 1h 45m |
| 2026-05-24 | KLM743 | AMS → LIM | May 24, 08:30 UTC | May 24, 20:05 UTC | 11h 35m |
| 2026-05-23 | KLM268 | PBM → AMS | May 23, 09:20 UTC | May 24, 03:35 UTC | 18h 16m |
| 2026-05-23 | KLM195 | AMS → PBM | May 23, 07:35 UTC | May 24, 03:35 UTC | 20h 1m |
| 2026-05-21 | KLM590 | ACC → AMS | May 21, 13:35 UTC | May 22, 04:40 UTC | 15h 5m |
| 2026-05-20 | KLM758 | PTY → AMS | May 20, 19:40 UTC | May 21, 09:55 UTC | 14h 15m |
| 2026-05-20 | KLM758 | PTY → AMS | May 20, 11:20 UTC | May 21, 09:55 UTC | 22h 35m |
| 2026-05-19 | KLM836 | SIN → AMS | May 19, 17:45 UTC | May 20, 06:10 UTC | 12h 26m |
| 2026-05-18 | KLM835 | AMS → SIN | May 18, 19:25 UTC | May 19, 07:35 UTC | 12h 10m |
| 2026-05-18 | KLM248 | ATL → AMS | May 18, 03:25 UTC | May 18, 11:10 UTC | 7h 45m |
| 2026-05-17 | KLM133 | AMS → ATL | May 17, 15:31 UTC | May 18, 00:05 UTC | 8h 35m |
| 2026-05-16 | KLM758 | PTY → AMS | May 16, 19:15 UTC | May 17, 09:40 UTC | 14h 25m |
| 2026-05-16 | KLM757 | AMS → PTY | May 16, 11:21 UTC | May 17, 09:40 UTC | 22h 20m |
| 2026-05-15 | KLM188 | - | May 15, 19:45 UTC | May 16, 07:35 UTC | 11h 51m |
| 2026-05-15 | KLM188 | - | May 15, 11:55 UTC | May 16, 07:35 UTC | 19h 40m |
| 2026-05-14 | KLM188 | - | May 14, 19:40 UTC | May 15, 08:30 UTC | 12h 50m |
| 2026-05-14 | KLM188 | - | May 14, 11:50 UTC | May 15, 08:30 UTC | 20h 40m |
| 2026-05-13 | KLM188 | - | May 13, 19:45 UTC | May 14, 07:55 UTC | 12h 10m |
| 2026-05-13 | KLM188 | - | May 13, 11:50 UTC | May 14, 07:55 UTC | 20h 5m |
| 2026-05-13 | KLM104 | AMS → JNB | May 13, 00:30 UTC | May 13, 08:40 UTC | 8h 10m |
| 2026-05-12 | KLM104 | AMS → JNB | May 12, 21:40 UTC | May 12, 21:55 UTC | 15m |
| 2026-05-12 | KLM105 | - | May 12, 08:35 UTC | May 12, 19:25 UTC | 10h 50m |
| 2026-05-11 | KLM590 | ACC → AMS | May 11, 13:15 UTC | May 12, 04:50 UTC | 15h 36m |
| 2026-05-10 | KLM758 | PTY → AMS | May 10, 19:00 UTC | May 11, 10:10 UTC | 15h 10m |
| 2026-05-10 | KLM757 | AMS → PTY | May 10, 11:30 UTC | May 11, 10:10 UTC | 22h 40m |
| 2026-05-09 | KLM188 | - | May 9, 13:20 UTC | May 10, 08:00 UTC | 18h 40m |
| 2026-05-09 | KLM188 | - | May 9, 11:45 UTC | May 10, 08:00 UTC | 20h 15m |
| 2026-05-08 | KLM872 | DEL → AMS | May 8, 22:40 UTC | May 9, 03:45 UTC | 5h 5m |
| 2026-05-08 | KLM871 | AMS → DEL | May 8, 12:49 UTC | May 8, 20:10 UTC | 7h 20m |
| 2026-05-08 | KLM226 | - | May 8, 00:49 UTC | May 8, 09:49 UTC | 9h 0m |
| 2026-05-07 | KLM219 | AMS → YVR | May 7, 13:40 UTC | May 7, 22:35 UTC | 8h 55m |
| 2026-05-05 | KLM874 | AMS → BOM | May 5, 13:20 UTC | May 6, 08:25 UTC | 19h 5m |
| 2026-05-05 | KLM873 | KUL → BKK | May 5, 12:25 UTC | May 6, 08:25 UTC | 20h 0m |
| 2026-05-04 | KLM758 | PTY → AMS | May 4, 19:25 UTC | May 5, 09:25 UTC | 14h 0m |
| 2026-05-04 | KLM757 | AMS → PTY | May 4, 11:50 UTC | May 5, 09:25 UTC | 21h 36m |
| 2026-05-03 | KLM592 | JNB → AMS | May 3, 21:35 UTC | May 4, 08:10 UTC | 10h 35m |
| 2026-05-03 | KLM591 | AMS → JNB | May 3, 09:15 UTC | May 3, 19:20 UTC | 10h 5m |
| 2026-05-03 | KLM174 | AMS → NBO | May 3, 05:10 UTC | May 3, 05:45 UTC | 35m |
| 2026-05-02 | KLM565 | AMS → NBO | May 2, 10:50 UTC | May 2, 13:40 UTC | 2h 50m |
| 2026-05-01 | KLM872 | DEL → AMS | May 1, 22:40 UTC | May 2, 07:05 UTC | 8h 25m |
| 2026-05-01 | KLM871 | AMS → DEL | May 1, 12:55 UTC | May 1, 20:25 UTC | 7h 30m |
| 2026-05-01 | KLM104 | AMS → JNB | May 1, 00:15 UTC | May 1, 08:20 UTC | 8h 5m |
| 2026-04-30 | KLM104 | AMS → JNB | Apr 30, 21:20 UTC | Apr 30, 21:30 UTC | 10m |
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-BVR page for operator, model, and routing details .