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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
No current signal · last broadcast 1d ago
Flights observed
201
Distinct callsigns
20
Country
NL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4851B0.

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 - 20 2026-07-04
KLM810 - 17 2026-07-04
KLM755 - 14 2026-07-09
KLM855 - 13 2026-07-10
KLM898 - 12 2026-07-03
KLM808 - 12 2026-07-12
KLM807 - 12 2026-07-12
KLM751 - 12 2026-06-27
KLM897 - 11 2026-07-03
KLM856 - 11 2026-07-10
KLM749 KLM Royal Dutch Airlines 11 2026-06-04
KLM867 KLM Royal Dutch Airlines 8 2026-05-21
KLM868 KLM Royal Dutch Airlines 7 2026-05-22
KLM639 - 5 2026-06-13
KLM845 - 4 2026-06-14
KLM640 - 4 2026-06-13
KLM846 - 3 2026-06-15
KLM896 KLM Royal Dutch Airlines 2 2026-06-07
KLM862 - 2 2026-06-21
KLM861 KLM Royal Dutch Airlines 2 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 KLM808 - Jul 12, 16:25 UTCJul 13, 05:45 UTC13h 20m
2026-07-12 KLM808 - Jul 12, 12:25 UTCJul 12, 14:15 UTC1h 50m
2026-07-12 KLM807 TPE → MNL Jul 12, 08:15 UTCJul 12, 10:15 UTC2h 0m
2026-07-11 KLM807 AMS → TPE Jul 11, 18:30 UTCJul 12, 06:25 UTC11h 55m
2026-07-10 KLM856 - Jul 10, 13:40 UTCJul 11, 02:45 UTC13h 5m
2026-07-10 KLM855 - Jul 10, 06:30 UTCJul 10, 06:50 UTC20m
2026-07-09 KLM855 - Jul 9, 20:05 UTCJul 10, 05:40 UTC9h 35m
2026-07-09 KLM755 - Jul 9, 02:50 UTCJul 9, 10:45 UTC7h 55m
2026-07-08 KLM755 - Jul 8, 10:05 UTCJul 9, 10:00 UTC23h 55m
2026-07-08 KLM755 - Jul 8, 08:40 UTCJul 9, 03:00 UTC18h 20m
2026-07-07 KLM808 TPE → AMS Jul 7, 16:20 UTCJul 8, 06:00 UTC13h 40m
2026-07-07 KLM808 - Jul 7, 12:45 UTCJul 7, 14:30 UTC1h 45m
2026-07-07 KLM807 TPE → MNL Jul 7, 08:30 UTCJul 7, 10:20 UTC1h 50m
2026-07-06 KLM807 AMS → TPE Jul 6, 18:35 UTCJul 7, 06:45 UTC12h 10m
2026-07-06 KLM755 - Jul 6, 02:45 UTCJul 6, 11:05 UTC8h 20m
2026-07-05 KLM755 - Jul 5, 10:05 UTCJul 6, 10:00 UTC23h 55m
2026-07-05 KLM755 - Jul 5, 08:45 UTCJul 6, 02:55 UTC18h 10m
2026-07-04 KLM810 - Jul 4, 16:20 UTCJul 5, 04:35 UTC12h 15m
2026-07-04 KLM810 - Jul 4, 12:40 UTCJul 4, 14:25 UTC1h 45m
2026-07-04 KLM809 - Jul 4, 10:45 UTCJul 4, 11:00 UTC15m
2026-07-04 KLM809 - Jul 4, 09:25 UTCJul 4, 10:10 UTC45m
2026-07-03 KLM809 - Jul 3, 19:35 UTCJul 4, 07:00 UTC11h 25m
2026-07-03 KLM898 - Jul 3, 10:15 UTCJul 3, 15:05 UTC4h 50m
2026-07-03 KLM897 - Jul 3, 00:25 UTCJul 3, 00:45 UTC20m
2026-07-02 KLM897 - Jul 2, 14:50 UTCJul 2, 18:45 UTC3h 55m
2026-07-01 KLM755 - Jul 1, 16:30 UTCJul 2, 10:35 UTC18h 5m
2026-07-01 KLM755 - Jul 1, 08:30 UTCJul 2, 03:05 UTC18h 35m
2026-06-30 KLM808 - Jun 30, 16:30 UTCJul 1, 06:00 UTC13h 30m
2026-06-30 KLM808 - Jun 30, 12:55 UTCJun 30, 14:30 UTC1h 35m
2026-06-30 KLM807 - Jun 30, 08:15 UTCJun 30, 10:00 UTC1h 45m
2026-06-29 KLM807 AMS → TPE Jun 29, 18:39 UTCJun 30, 06:35 UTC11h 56m
2026-06-29 KLM898 - Jun 29, 10:15 UTCJun 29, 14:39 UTC4h 25m
2026-06-28 KLM897 - Jun 28, 23:54 UTCJun 29, 00:14 UTC20m
2026-06-28 KLM897 - Jun 28, 14:14 UTCJun 28, 18:19 UTC4h 5m
2026-06-27 KLM751 - Jun 27, 17:29 UTCJun 28, 11:00 UTC17h 30m
2026-06-27 KLM751 - Jun 27, 10:05 UTCJun 28, 10:00 UTC23h 55m
2026-06-27 KLM751 - Jun 27, 09:44 UTCJun 27, 18:49 UTC9h 5m
2026-06-26 KLM808 - Jun 26, 16:14 UTCJun 27, 05:55 UTC13h 40m
2026-06-26 KLM808 MNL → TPE Jun 26, 12:39 UTCJun 26, 14:19 UTC1h 40m
2026-06-26 KLM807 TPE → MNL Jun 26, 08:24 UTCJun 26, 10:10 UTC1h 45m
2026-06-25 KLM807 - Jun 25, 18:45 UTCJun 26, 06:39 UTC11h 55m
2026-06-25 KLM898 - Jun 25, 12:04 UTCJun 25, 16:24 UTC4h 20m
2026-06-25 KLM897 - Jun 25, 02:05 UTCJun 25, 02:25 UTC20m
2026-06-24 KLM897 - Jun 24, 16:34 UTCJun 24, 20:30 UTC3h 55m
2026-06-23 KLM751 - Jun 23, 16:54 UTCJun 24, 10:45 UTC17h 50m
2026-06-23 KLM751 - Jun 23, 10:04 UTCJun 24, 09:59 UTC23h 55m
2026-06-23 KLM751 - Jun 23, 09:14 UTCJun 23, 19:00 UTC9h 45m
2026-06-22 KLM810 - Jun 22, 16:20 UTCJun 23, 04:45 UTC12h 25m
2026-06-22 KLM810 - Jun 22, 12:44 UTCJun 22, 14:14 UTC1h 30m
2026-06-22 KLM809 - Jun 22, 09:19 UTCJun 22, 11:00 UTC1h 40m

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 .

Mode-S 4851B0 frequently asked

What is Mode-S code 4851B0?
4851B0 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BHE.
Where is Mode-S 4851B0 registered?
Mode-S code 4851B0 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4851B0 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4851B0, octal 22050660, decimal 4,739,504.
What flights does 4851B0 operate?
Mode-S 4851B0 has broadcast 20 distinct callsigns, including KLM809, KLM810, KLM755, KLM855, KLM898.