Apparatus

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sensors Mode-S transponder

48436B

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BQD · BOEING 777-200

Hex
48436B
Octal
22041553
Decimal
4,735,851
Country
NL
Tail
PH-BQD
Type
B772
No current signal · last broadcast 1h ago
Flights observed
181
Distinct callsigns
20
Country
NL
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 48436B.

Country allocation

The ICAO 24-bit address 48436B 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
KLM636 - 15 2026-07-12
KLM702 - 14 2026-07-07
KLM635 - 14 2026-07-11
KLM701 - 13 2026-07-07
KLM844 - 8 2026-06-28
KLM843 - 8 2026-06-27
KLM609 - 8 2026-07-10
KLM610 - 7 2026-07-11
KLM268 - 7 2026-07-02
KLM862 KLM Royal Dutch Airlines 5 2026-06-02
KLM861 KLM Royal Dutch Airlines 5 2026-06-01
KLM760 - 5 2026-07-05
KLM661 - 5 2026-07-14
KLM874 - 4 2026-06-21
KLM695 - 4 2026-06-26
KLM195 - 4 2026-07-01
KLM192 - 4 2026-06-15
KLM878 - 3 2026-07-13
KLM877 - 3 2026-07-13
KLM759 - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KLM661 - Jul 14, 09:05 UTCJul 14, 10:30 UTC1h 25m
2026-07-13 KLM878 - Jul 13, 20:50 UTCJul 14, 05:55 UTC9h 5m
2026-07-13 KLM877 AMS → BOM Jul 13, 10:10 UTCJul 13, 18:15 UTC8h 5m
2026-07-12 KLM636 LAS → AMS Jul 12, 03:55 UTCJul 12, 13:25 UTC9h 30m
2026-07-11 KLM635 AMS → LAS Jul 11, 15:40 UTCJul 12, 01:55 UTC10h 15m
2026-07-11 KLM610 SLC → AMS Jul 11, 04:15 UTCJul 11, 13:20 UTC9h 5m
2026-07-10 KLM609 - Jul 10, 15:45 UTCJul 11, 01:30 UTC9h 46m
2026-07-10 KLM686 - Jul 10, 02:35 UTCJul 10, 12:40 UTC10h 5m
2026-07-09 KLM685 - Jul 9, 12:45 UTCJul 9, 23:45 UTC11h 0m
2026-07-08 KLM250 MSP → AMS Jul 8, 20:25 UTCJul 9, 03:45 UTC7h 20m
2026-07-08 KLM655 - Jul 8, 09:30 UTCJul 8, 17:30 UTC8h 0m
2026-07-07 KLM702 EZE → AMS Jul 7, 18:15 UTCJul 8, 06:55 UTC12h 40m
2026-07-07 KLM702 - Jul 7, 15:10 UTCJul 7, 15:45 UTC35m
2026-07-07 KLM702 - Jul 7, 14:10 UTCJul 7, 14:20 UTC10m
2026-07-07 KLM701 - Jul 7, 10:50 UTCJul 7, 12:05 UTC1h 15m
2026-07-06 KLM701 AMS → EZE Jul 6, 19:30 UTCJul 7, 08:45 UTC13h 15m
2026-07-06 KLM636 - Jul 6, 03:35 UTCJul 6, 13:05 UTC9h 30m
2026-07-05 KLM635 - Jul 5, 15:15 UTCJul 6, 01:30 UTC10h 15m
2026-07-05 KLM760 - Jul 5, 01:20 UTCJul 5, 11:25 UTC10h 5m
2026-07-04 KLM759 - Jul 4, 11:50 UTCJul 4, 22:05 UTC10h 15m
2026-07-03 KLM602 - Jul 3, 21:00 UTCJul 4, 06:45 UTC9h 45m
2026-07-03 KLM601 AMS → LAX Jul 3, 08:05 UTCJul 3, 18:45 UTC10h 40m
2026-07-02 KLM268 - Jul 2, 08:50 UTCJul 3, 03:50 UTC19h 0m
2026-07-02 KLM268 AMS → AMS Jul 2, 07:20 UTCJul 3, 03:50 UTC20h 30m
2026-07-02 KLM268 - Jul 2, 02:30 UTCJul 2, 03:45 UTC1h 15m
2026-07-01 KLM195 - Jul 1, 07:15 UTCJul 2, 03:45 UTC20h 30m
2026-06-28 KLM844 - Jun 28, 05:29 UTCJun 28, 16:55 UTC11h 25m
2026-06-27 KLM843 - Jun 27, 17:14 UTCJun 28, 03:45 UTC10h 30m
2026-06-27 KLM100 - Jun 27, 03:09 UTCJun 27, 09:44 UTC6h 35m
2026-06-26 KLM695 AMS → YYZ Jun 26, 17:35 UTCJun 27, 00:50 UTC7h 15m
2026-06-26 KLM636 LAS → AMS Jun 26, 05:44 UTCJun 26, 15:25 UTC9h 40m
2026-06-25 KLM635 - Jun 25, 17:34 UTCJun 26, 03:34 UTC10h 0m
2026-06-25 KLM686 - Jun 25, 03:04 UTCJun 25, 12:44 UTC9h 40m
2026-06-24 KLM685 - Jun 24, 12:44 UTCJun 24, 23:50 UTC11h 5m
2026-06-23 KLM204 - Jun 23, 01:54 UTCJun 23, 03:20 UTC1h 25m
2026-06-22 KLM204 - Jun 22, 20:55 UTCJun 22, 22:24 UTC1h 30m
2026-06-22 KLM147 - Jun 22, 09:40 UTCJun 22, 17:10 UTC7h 30m
2026-06-21 KLM874 - Jun 21, 10:49 UTCJun 22, 06:29 UTC19h 40m
2026-06-21 KLM874 AMS → AMS Jun 21, 10:19 UTCJun 22, 06:29 UTC20h 10m
2026-06-20 KLM878 - Jun 20, 20:45 UTCJun 21, 05:35 UTC8h 50m
2026-06-20 KLM877 AMS → BOM Jun 20, 10:39 UTCJun 20, 18:40 UTC8h 0m
2026-06-19 KLM602 - Jun 19, 20:59 UTCJun 20, 06:49 UTC9h 50m
2026-06-19 KLM601 AMS → LAX Jun 19, 08:09 UTCJun 19, 18:44 UTC10h 35m
2026-06-18 KLM268 - Jun 18, 09:00 UTCJun 19, 03:34 UTC18h 34m
2026-06-18 KLM268 - Jun 18, 07:15 UTCJun 19, 03:34 UTC20h 19m
2026-06-18 KLM268 - Jun 18, 02:35 UTCJun 18, 03:55 UTC1h 20m
2026-06-17 KLM195 AMS → AMS Jun 17, 07:20 UTCJun 18, 03:55 UTC20h 35m
2026-06-15 KLM192 - Jun 15, 21:30 UTCJun 16, 06:04 UTC8h 35m
2026-06-15 KLM661 - Jun 15, 08:35 UTCJun 15, 18:20 UTC9h 45m
2026-06-14 KLM192 - Jun 14, 20:55 UTCJun 15, 05:40 UTC8h 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-BQD page for operator, model, and routing details .

Mode-S 48436B frequently asked

What is Mode-S code 48436B?
48436B is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BQD.
Where is Mode-S 48436B registered?
Mode-S code 48436B is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48436B 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 48436B, octal 22041553, decimal 4,735,851.
What flights does 48436B operate?
Mode-S 48436B has broadcast 20 distinct callsigns, including KLM636, KLM702, KLM635, KLM701, KLM844.