Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

484371

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BQK · BOEING 777-200

Hex
484371
Octal
22041561
Decimal
4,735,857
Country
NL
Tail
PH-BQK
Type
B772
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
200
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S 484371.

Country allocation

The ICAO 24-bit address 484371 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
KLM701 - 22 2026-07-02
KLM702 - 19 2026-07-02
KLM636 - 9 2026-07-05
KLM635 - 9 2026-07-04
KLM759 KLM Royal Dutch Airlines 8 2026-07-25
KLM569 KLM Royal Dutch Airlines 8 2026-05-13
KLM844 - 7 2026-06-23
KLM843 - 7 2026-06-22
KLM686 - 7 2026-07-04
KLM661 KLM Royal Dutch Airlines 7 2026-07-19
KLM192 KLM Royal Dutch Airlines 7 2026-07-19
KLM760 KLM Royal Dutch Airlines 6 2026-07-26
KLM685 - 6 2026-07-03
KLM100 - 6 2026-07-11
KLM695 - 5 2026-07-10
KLM207 KLM Royal Dutch Airlines 5 2026-07-26
KLM877 KLM Royal Dutch Airlines 4 2026-05-11
KLM855 - 4 2026-07-21
KLM808 - 4 2026-06-28
KLM807 - 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM207 AMS → JFK Jul 26, 13:20 UTCJul 26, 20:55 UTC7h 35m
2026-07-26 KLM760 SJO → AMS Jul 26, 00:55 UTCJul 26, 10:50 UTC9h 56m
2026-07-25 KLM759 AMS → SJO Jul 25, 11:20 UTCJul 25, 21:35 UTC10h 15m
2026-07-25 KLM104 AMS → JNB Jul 25, 06:20 UTCJul 25, 08:30 UTC2h 10m
2026-07-24 KLM104 AMS → JNB Jul 24, 21:10 UTCJul 24, 21:25 UTC15m
2026-07-24 KLM105 - Jul 24, 08:45 UTCJul 24, 19:20 UTC10h 35m
2026-07-22 KLM880 BLR → AMS Jul 22, 19:45 UTCJul 23, 05:30 UTC9h 45m
2026-07-22 KLM879 - Jul 22, 17:15 UTCJul 22, 17:30 UTC15m
2026-07-22 KLM879 - Jul 22, 11:10 UTCJul 22, 15:55 UTC4h 45m
2026-07-21 KLM856 ICN → AMS Jul 21, 13:45 UTCJul 22, 03:05 UTC13h 20m
2026-07-21 KLM855 - Jul 21, 06:50 UTCJul 21, 07:05 UTC15m
2026-07-20 KLM855 - Jul 20, 20:00 UTCJul 21, 05:55 UTC9h 55m
2026-07-19 KLM192 IAH → AMS Jul 19, 20:45 UTCJul 20, 05:45 UTC9h 0m
2026-07-19 KLM661 AMS → IAH Jul 19, 08:25 UTCJul 19, 18:00 UTC9h 35m
2026-07-18 KLM192 IAH → AMS Jul 18, 20:50 UTCJul 19, 05:30 UTC8h 40m
2026-07-18 KLM661 AMS → IAH Jul 18, 08:35 UTCJul 18, 18:15 UTC9h 40m
2026-07-17 KLM760 SJO → AMS Jul 17, 01:55 UTCJul 17, 12:04 UTC10h 10m
2026-07-16 KLM759 - Jul 16, 11:20 UTCJul 16, 22:00 UTC10h 40m
2026-07-15 KLM268 - Jul 15, 08:20 UTCJul 16, 03:55 UTC19h 35m
2026-07-15 KLM268 - Jul 15, 07:15 UTCJul 16, 03:55 UTC20h 40m
2026-07-14 KLM856 - Jul 14, 15:00 UTCJul 15, 03:00 UTC11h 59m
2026-07-14 - - Jul 14, 13:45 UTCJul 14, 14:05 UTC20m
2026-07-14 KLM855 - Jul 14, 06:55 UTCJul 14, 07:15 UTC20m
2026-07-13 KLM855 - Jul 13, 20:10 UTCJul 14, 06:00 UTC9h 50m
2026-07-13 KLM646 JFK → AMS Jul 13, 00:10 UTCJul 13, 06:40 UTC6h 30m
2026-07-12 KLM207 - Jul 12, 14:15 UTCJul 12, 21:00 UTC6h 45m
2026-07-12 KLM207 - Jul 12, 13:55 UTCJul 12, 14:10 UTC15m
2026-07-12 KLM760 SJO → AMS Jul 12, 01:10 UTCJul 12, 11:10 UTC10h 0m
2026-07-11 KLM759 - Jul 11, 11:30 UTCJul 11, 22:01 UTC10h 30m
2026-07-11 KLM100 - Jul 11, 07:10 UTCJul 11, 08:50 UTC1h 40m
2026-07-11 KLM100 - Jul 11, 02:10 UTCJul 11, 03:35 UTC1h 25m
2026-07-10 KLM695 - Jul 10, 16:10 UTCJul 10, 23:40 UTC7h 30m
2026-07-10 KLM100 YYZ → AMS Jul 10, 02:15 UTCJul 10, 09:00 UTC6h 45m
2026-07-09 KLM695 - Jul 9, 16:25 UTCJul 9, 23:50 UTC7h 25m
2026-07-05 KLM636 LAS → AMS Jul 5, 04:15 UTCJul 5, 13:45 UTC9h 30m
2026-07-04 KLM635 AMS → LAS Jul 4, 16:05 UTCJul 5, 02:15 UTC10h 10m
2026-07-04 KLM686 - Jul 4, 04:00 UTCJul 4, 13:45 UTC9h 45m
2026-07-03 KLM685 AMS → MEX Jul 3, 13:15 UTCJul 4, 00:25 UTC11h 10m
2026-07-02 KLM702 - Jul 2, 18:55 UTCJul 3, 07:15 UTC12h 20m
2026-07-02 KLM702 - Jul 2, 16:20 UTCJul 2, 16:45 UTC25m
2026-07-02 KLM702 - Jul 2, 15:20 UTCJul 2, 15:30 UTC10m
2026-07-02 KLM701 - Jul 2, 11:45 UTCJul 2, 12:10 UTC25m
2026-07-01 KLM701 AMS → EZE Jul 1, 20:25 UTCJul 2, 09:40 UTC13h 15m
2026-07-01 KLM862 - Jul 1, 03:20 UTCJul 1, 16:50 UTC13h 30m
2026-06-30 KLM861 AMS → NRT Jun 30, 12:05 UTCJul 1, 00:45 UTC12h 40m
2026-06-29 KLM104 CPT → AMS Jun 29, 21:30 UTCJun 30, 08:40 UTC11h 11m
2026-06-29 KLM105 - Jun 29, 08:44 UTCJun 29, 19:24 UTC10h 40m
2026-06-28 KLM808 - Jun 28, 16:25 UTCJun 29, 05:59 UTC13h 35m
2026-06-28 KLM808 - Jun 28, 12:09 UTCJun 28, 13:49 UTC1h 40m
2026-06-28 KLM807 TPE → MNL Jun 28, 08:29 UTCJun 28, 10:15 UTC1h 45m

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

Mode-S 484371 frequently asked

What is Mode-S code 484371?
484371 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BQK.
Where is Mode-S 484371 registered?
Mode-S code 484371 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484371 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484371, octal 22041561, decimal 4,735,857.
What flights does 484371 operate?
Mode-S 484371 has broadcast 20 distinct callsigns, including KLM701, KLM702, KLM636, KLM635, KLM759.