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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
No current signal · last broadcast 24m ago
Flights observed
126
Distinct callsigns
20
Country
NL
Last broadcast
24m ago

Last known position

Most recent position reported by Mode-S 4851F7.

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 - 9 2026-07-10
KLM743 - 8 2026-07-10
KLM758 - 7 2026-07-05
KLM268 - 7 2026-07-17
KLM226 - 7 2026-07-14
KLM219 - 7 2026-07-13
KLM791 - 6 2026-07-14
KLM589 - 6 2026-06-29
KLM248 - 6 2026-07-12
KLM133 - 6 2026-07-11
KLM792 - 5 2026-07-15
KLM590 - 5 2026-06-16
KLM835 - 4 2026-06-23
KLM105 KLM Royal Dutch Airlines 4 2026-06-14
KLM104 - 4 2026-06-15
KLM896 - 3 2026-06-19
KLM844 - 3 2026-07-08
KLM843 - 3 2026-07-07
KLM836 KLM Royal Dutch Airlines 3 2026-06-23
KLM757 KLM Royal Dutch Airlines 3 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 KLM268 - Jul 17, 07:30 UTCJul 18, 03:45 UTC20h 16m
2026-07-16 KLM268 - Jul 16, 10:45 UTCJul 17, 03:55 UTC17h 10m
2026-07-16 KLM268 - Jul 16, 07:50 UTCJul 17, 03:55 UTC20h 5m
2026-07-16 KLM268 AMS → AMS Jul 16, 07:25 UTCJul 17, 03:55 UTC20h 30m
2026-07-15 KLM792 - Jul 15, 01:05 UTCJul 15, 11:55 UTC10h 50m
2026-07-14 KLM791 - Jul 14, 11:55 UTCJul 14, 23:00 UTC11h 4m
2026-07-14 KLM226 - Jul 14, 00:55 UTCJul 14, 09:25 UTC8h 30m
2026-07-13 KLM219 - Jul 13, 13:40 UTCJul 13, 22:50 UTC9h 10m
2026-07-13 KLM226 - Jul 13, 01:05 UTCJul 13, 09:55 UTC8h 50m
2026-07-12 KLM219 - Jul 12, 13:50 UTCJul 12, 22:55 UTC9h 5m
2026-07-12 KLM248 ATL → AMS Jul 12, 03:01 UTCJul 12, 10:45 UTC7h 45m
2026-07-11 KLM133 - Jul 11, 15:45 UTCJul 12, 00:15 UTC8h 30m
2026-07-10 KLM744 - Jul 10, 23:10 UTCJul 11, 10:40 UTC11h 30m
2026-07-10 KLM743 - Jul 10, 08:20 UTCJul 10, 20:05 UTC11h 45m
2026-07-08 KLM844 - Jul 8, 05:20 UTCJul 8, 17:00 UTC11h 40m
2026-07-07 KLM843 AMS → BKK Jul 7, 15:30 UTCJul 8, 01:55 UTC10h 25m
2026-07-07 KLM792 - Jul 7, 01:25 UTCJul 7, 12:10 UTC10h 45m
2026-07-06 KLM791 AMS → GRU Jul 6, 11:50 UTCJul 6, 23:05 UTC11h 15m
2026-07-05 KLM758 - Jul 5, 01:35 UTCJul 5, 09:55 UTC8h 20m
2026-07-04 KLM758 - Jul 4, 11:50 UTCJul 5, 09:55 UTC22h 5m
2026-07-04 KLM758 - Jul 4, 11:15 UTCJul 5, 09:45 UTC22h 30m
2026-07-02 KLM571 - Jul 2, 08:55 UTCJul 2, 16:35 UTC7h 40m
2026-07-01 KLM192 - Jul 1, 20:55 UTCJul 2, 05:35 UTC8h 40m
2026-07-01 KLM661 - Jul 1, 08:35 UTCJul 1, 18:30 UTC9h 55m
2026-06-29 KLM589 - Jun 29, 13:39 UTCJun 30, 04:25 UTC14h 46m
2026-06-28 KLM744 - Jun 28, 16:49 UTCJun 29, 10:40 UTC17h 50m
2026-06-28 KLM744 - Jun 28, 09:50 UTCJun 29, 09:44 UTC23h 55m
2026-06-28 KLM743 - Jun 28, 08:55 UTCJun 29, 03:14 UTC18h 20m
2026-06-27 KLM844 - Jun 27, 05:19 UTCJun 27, 16:44 UTC11h 25m
2026-06-26 KLM843 AMS → BKK Jun 26, 15:45 UTCJun 27, 02:14 UTC10h 30m
2026-06-26 KLM792 - Jun 26, 01:20 UTCJun 26, 12:05 UTC10h 45m
2026-06-25 KLM791 AMS → GRU Jun 25, 11:30 UTCJun 25, 22:54 UTC11h 25m
2026-06-24 KLM592 - Jun 24, 21:40 UTCJun 25, 08:04 UTC10h 25m
2026-06-24 KLM591 AMS → JNB Jun 24, 09:24 UTCJun 24, 19:24 UTC10h 0m
2026-06-23 KLM836 SIN → AMS Jun 23, 17:30 UTCJun 24, 05:59 UTC12h 30m
2026-06-23 KLM835 - Jun 23, 09:14 UTCJun 23, 09:24 UTC10m
2026-06-22 KLM835 - Jun 22, 19:40 UTCJun 23, 07:15 UTC11h 35m
2026-06-22 KLM248 ATL → AMS Jun 22, 02:54 UTCJun 22, 10:30 UTC7h 35m
2026-06-21 KLM133 AMS → ATL Jun 21, 15:44 UTCJun 22, 00:14 UTC8h 30m
2026-06-20 KLM836 SIN → AMS Jun 20, 19:09 UTCJun 21, 07:40 UTC12h 30m
2026-06-19 KLM835 - Jun 19, 21:39 UTCJun 20, 09:05 UTC11h 25m
2026-06-19 KLM896 - Jun 19, 13:04 UTCJun 19, 17:39 UTC4h 35m
2026-06-18 KLM896 - Jun 18, 17:50 UTCJun 19, 17:39 UTC23h 49m
2026-06-18 KLM896 - Jun 18, 15:50 UTCJun 19, 15:44 UTC23h 54m
2026-06-18 KLM895 AMS → PVG Jun 18, 13:55 UTCJun 19, 13:44 UTC23h 49m
2026-06-17 KLM744 - Jun 17, 17:05 UTCJun 18, 10:40 UTC17h 35m
2026-06-17 KLM743 - Jun 17, 09:50 UTCJun 18, 09:45 UTC23h 55m
2026-06-17 KLM743 - Jun 17, 08:35 UTCJun 18, 03:10 UTC18h 35m
2026-06-16 KLM590 - Jun 16, 13:30 UTCJun 17, 05:10 UTC15h 41m
2026-06-16 KLM226 - Jun 16, 01:45 UTCJun 16, 10:15 UTC8h 30m

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 .

Mode-S 4851F7 frequently asked

What is Mode-S code 4851F7?
4851F7 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BVU.
Where is Mode-S 4851F7 registered?
Mode-S code 4851F7 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4851F7 broadcasting right now?
No active broadcast right now. Last signal was 24m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4851F7, octal 22050767, decimal 4,739,575.
What flights does 4851F7 operate?
Mode-S 4851F7 has broadcast 20 distinct callsigns, including KLM744, KLM743, KLM758, KLM268, KLM226.