Apparatus

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sensors Mode-S transponder

4851F6

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BVS · BOEING 777-300ER

Hex
4851F6
Octal
22050766
Decimal
4,739,574
Country
NL
Tail
PH-BVS
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
59
Distinct callsigns
20
Country
NL
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4851F6.

Country allocation

The ICAO 24-bit address 4851F6 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
KLM836 KLM Royal Dutch Airlines 8 2026-05-27
KLM248 KLM Royal Dutch Airlines 5 2026-05-12
KLM133 - 5 2026-05-11
KLM835 KLM Royal Dutch Airlines 4 2026-05-26
KLM791 KLM Royal Dutch Airlines 4 2026-05-10
KLM758 KLM Royal Dutch Airlines 4 2026-05-24
KLM792 KLM Royal Dutch Airlines 3 2026-05-11
KLM744 KLM Royal Dutch Airlines 3 2026-05-19
KLM592 KLM Royal Dutch Airlines 3 2026-05-28
KLM591 KLM Royal Dutch Airlines 3 2026-05-28
KLM897 KLM Royal Dutch Airlines 2 2026-05-26
KLM743 KLM Royal Dutch Airlines 2 2026-05-19
KLM590 KLM Royal Dutch Airlines 2 2026-05-18
KLM188 - 2 2026-05-03
KLM898 KLM Royal Dutch Airlines 1 2026-05-26
KLM844 KLM Royal Dutch Airlines 1 2026-05-21
KLM843 KLM Royal Dutch Airlines 1 2026-05-20
KLM757 KLM Royal Dutch Airlines 1 2026-05-15
KLM642 KLM Royal Dutch Airlines 1 2026-05-29
KLM641 KLM Royal Dutch Airlines 1 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KLM565 AMS → NBO May 30, 10:50 UTCMay 30, 13:30 UTC2h 40m
2026-05-29 KLM642 JFK → AMS May 29, 21:00 UTCMay 30, 03:30 UTC6h 30m
2026-05-29 KLM641 AMS → JFK May 29, 11:05 UTCMay 29, 18:15 UTC7h 10m
2026-05-28 KLM592 JNB → AMS May 28, 21:35 UTCMay 29, 08:10 UTC10h 35m
2026-05-28 KLM591 AMS → JNB May 28, 09:20 UTCMay 28, 19:30 UTC10h 10m
2026-05-27 KLM836 SIN → AMS May 27, 17:30 UTCMay 28, 06:20 UTC12h 50m
2026-05-26 KLM835 AMS → SIN May 26, 19:34 UTCMay 27, 07:00 UTC11h 26m
2026-05-26 KLM898 PEK → AMS May 26, 10:39 UTCMay 26, 15:05 UTC4h 25m
2026-05-26 KLM897 AMS → PEK May 26, 00:19 UTCMay 26, 00:39 UTC20m
2026-05-25 KLM897 AMS → PEK May 25, 14:20 UTCMay 25, 18:35 UTC4h 15m
2026-05-24 KLM758 PTY → AMS May 24, 19:20 UTCMay 25, 09:45 UTC14h 25m
2026-05-24 KLM758 PTY → AMS May 24, 11:35 UTCMay 25, 09:45 UTC22h 10m
2026-05-24 KLM758 PTY → AMS May 24, 11:15 UTCMay 25, 09:30 UTC22h 15m
2026-05-23 KLM592 JNB → AMS May 23, 21:35 UTCMay 24, 08:10 UTC10h 35m
2026-05-23 KLM591 AMS → JNB May 23, 08:50 UTCMay 23, 18:45 UTC9h 56m
2026-05-22 KLM836 SIN → AMS May 22, 17:35 UTCMay 23, 06:05 UTC12h 29m
2026-05-21 KLM835 AMS → SIN May 21, 19:15 UTCMay 22, 07:05 UTC11h 50m
2026-05-21 KLM844 BKK → AMS May 21, 05:10 UTCMay 21, 16:45 UTC11h 35m
2026-05-20 KLM843 BKK → TPE May 20, 15:40 UTCMay 21, 02:25 UTC10h 45m
2026-05-19 KLM744 LIM → AMS May 19, 23:05 UTCMay 20, 10:15 UTC11h 11m
2026-05-19 KLM743 AMS → LIM May 19, 08:15 UTCMay 19, 20:05 UTC11h 50m
2026-05-18 KLM590 ACC → AMS May 18, 14:10 UTCMay 19, 04:35 UTC14h 24m
2026-05-17 KLM744 LIM → AMS May 17, 18:30 UTCMay 18, 10:25 UTC15h 55m
2026-05-17 KLM744 LIM → AMS May 17, 09:35 UTCMay 18, 09:25 UTC23h 50m
2026-05-17 KLM743 AMS → LIM May 17, 08:25 UTCMay 18, 03:01 UTC18h 35m
2026-05-16 KLM590 ACC → AMS May 16, 13:21 UTCMay 17, 04:30 UTC15h 10m
2026-05-15 KLM758 PTY → AMS May 15, 19:25 UTCMay 16, 09:35 UTC14h 11m
2026-05-15 KLM757 AMS → PTY May 15, 11:45 UTCMay 16, 09:31 UTC21h 45m
2026-05-14 KLM592 JNB → AMS May 14, 21:20 UTCMay 15, 08:05 UTC10h 45m
2026-05-14 KLM591 AMS → JNB May 14, 09:10 UTCMay 14, 19:10 UTC10h 0m
2026-05-13 KLM836 SIN → AMS May 13, 17:15 UTCMay 14, 06:00 UTC12h 45m
2026-05-12 KLM835 AMS → SIN May 12, 19:25 UTCMay 13, 07:10 UTC11h 45m
2026-05-12 KLM248 ATL → AMS May 12, 03:00 UTCMay 12, 10:40 UTC7h 40m
2026-05-11 KLM133 - May 11, 15:20 UTCMay 11, 22:35 UTC7h 15m
2026-05-11 KLM792 GRU → AMS May 11, 01:15 UTCMay 11, 11:45 UTC10h 30m
2026-05-10 KLM791 AMS → GRU May 10, 11:35 UTCMay 10, 23:00 UTC11h 25m
2026-05-09 KLM792 GRU → AMS May 9, 01:00 UTCMay 9, 11:40 UTC10h 40m
2026-05-08 KLM791 AMS → GRU May 8, 11:30 UTCMay 8, 22:45 UTC11h 15m
2026-05-07 KLM836 SIN → AMS May 7, 17:45 UTCMay 8, 06:25 UTC12h 40m
2026-05-06 KLM835 AMS → SIN May 6, 19:20 UTCMay 7, 07:20 UTC12h 0m
2026-05-06 KLM248 ATL → AMS May 6, 02:50 UTCMay 6, 10:40 UTC7h 50m
2026-05-05 KLM133 AMS → ATL May 5, 15:20 UTCMay 6, 00:10 UTC8h 50m
2026-05-05 KLM792 GRU → AMS May 5, 01:15 UTCMay 5, 11:40 UTC10h 25m
2026-05-04 KLM791 AMS → GRU May 4, 21:10 UTCMay 4, 22:50 UTC1h 40m
2026-05-04 KLM791 AMS → GRU May 4, 11:20 UTCMay 4, 20:45 UTC9h 26m
2026-05-03 KLM188 - May 3, 19:50 UTCMay 4, 07:55 UTC12h 5m
2026-05-03 KLM188 AMS → AMS May 3, 11:45 UTCMay 4, 07:55 UTC20h 10m
2026-05-02 KLM104 AMS → JNB May 2, 21:35 UTCMay 3, 08:50 UTC11h 14m
2026-05-02 KLM105 - May 2, 09:00 UTCMay 2, 19:35 UTC10h 35m
2026-04-14 KLM248 ATL → AMS Apr 14, 10:50 UTCApr 14, 10:55 UTC5m

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-BVS page for operator, model, and routing details .

Mode-S 4851F6 frequently asked

What is Mode-S code 4851F6?
4851F6 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BVS.
Where is Mode-S 4851F6 registered?
Mode-S code 4851F6 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4851F6 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4851F6, octal 22050766, decimal 4,739,574.
What flights does 4851F6 operate?
Mode-S 4851F6 has broadcast 20 distinct callsigns, including KLM836, KLM248, KLM133, KLM835, KLM791.