Apparatus

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sensors Mode-S transponder

485991

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-KFE · DIAMOND DA-42 Guardian

Hex
485991
Octal
22054621
Decimal
4,741,521
Country
NL
Tail
PH-KFE
Type
DA42
No current signal · last broadcast 12h ago
Flights observed
134
Distinct callsigns
16
Country
NL
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 485991.

Country allocation

The ICAO 24-bit address 485991 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 16 distinct

Callsign Airline Flights Last seen
PHKFE - 30 2026-06-11
KLM7916 - 17 2026-07-08
KLM7918 - 13 2026-07-09
KLM7922 - 12 2026-07-09
KLM7901 - 12 2026-07-13
KLM7915 - 9 2026-06-29
KLM7925 - 8 2026-07-13
KLM7914 KLM Royal Dutch Airlines 6 2026-06-23
KLM7907 - 6 2026-07-07
KLM7910 - 5 2026-07-02
KLM7923 KLM Royal Dutch Airlines 4 2026-07-03
KLM7908 - 4 2026-07-07
KLM7912 - 3 2026-07-10
KLM7930 KLM Royal Dutch Airlines 2 2026-05-02
KLM7929 - 2 2026-06-27
KLM7928 - 1 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KLM7901 GRQ → GRQ Jul 13, 17:30 UTCJul 13, 19:00 UTC1h 30m
2026-07-13 KLM7901 GRQ → GRQ Jul 13, 14:45 UTCJul 13, 16:20 UTC1h 35m
2026-07-13 KLM7901 GRQ → GRQ Jul 13, 12:55 UTCJul 13, 14:25 UTC1h 30m
2026-07-13 KLM7925 GRQ → GRQ Jul 13, 06:10 UTCJul 13, 07:25 UTC1h 15m
2026-07-10 KLM7928 GRQ → GRQ Jul 10, 10:50 UTCJul 10, 12:10 UTC1h 20m
2026-07-10 KLM7912 GRQ → GRQ Jul 10, 08:05 UTCJul 10, 09:00 UTC55m
2026-07-09 KLM7918 GRQ → GRQ Jul 9, 13:25 UTCJul 9, 14:20 UTC55m
2026-07-09 KLM7922 - Jul 9, 10:30 UTCJul 9, 12:10 UTC1h 40m
2026-07-09 KLM7922 GRQ → RLG Jul 9, 06:50 UTCJul 9, 09:20 UTC2h 30m
2026-07-08 KLM7916 GRQ → GRQ Jul 8, 17:10 UTCJul 8, 18:30 UTC1h 20m
2026-07-08 KLM7916 GRQ → GRQ Jul 8, 14:25 UTCJul 8, 15:40 UTC1h 15m
2026-07-08 KLM7916 GRQ → GRQ Jul 8, 12:45 UTCJul 8, 13:55 UTC1h 10m
2026-07-08 KLM7922 - Jul 8, 09:25 UTCJul 8, 11:00 UTC1h 35m
2026-07-08 KLM7922 - Jul 8, 06:05 UTCJul 8, 08:10 UTC2h 5m
2026-07-07 KLM7901 - Jul 7, 18:25 UTCJul 7, 19:30 UTC1h 5m
2026-07-07 KLM7901 GRQ → GRQ Jul 7, 16:10 UTCJul 7, 17:45 UTC1h 35m
2026-07-07 KLM7901 - Jul 7, 13:40 UTCJul 7, 15:00 UTC1h 20m
2026-07-07 KLM7908 GRQ → GRQ Jul 7, 11:40 UTCJul 7, 12:55 UTC1h 15m
2026-07-07 KLM7907 GRQ → GRQ Jul 7, 08:45 UTCJul 7, 09:45 UTC1h 0m
2026-07-07 KLM7907 GRQ → GRQ Jul 7, 06:00 UTCJul 7, 07:30 UTC1h 30m
2026-07-06 KLM7901 GRQ → GRQ Jul 6, 17:25 UTCJul 6, 19:00 UTC1h 35m
2026-07-06 KLM7901 GRQ → GRQ Jul 6, 14:25 UTCJul 6, 15:45 UTC1h 20m
2026-07-06 KLM7901 GRQ → GRQ Jul 6, 12:25 UTCJul 6, 13:50 UTC1h 25m
2026-07-03 KLM7923 GRQ → GRQ Jul 3, 10:00 UTCJul 3, 11:40 UTC1h 40m
2026-07-03 KLM7923 GRQ → GRQ Jul 3, 05:45 UTCJul 3, 07:55 UTC2h 10m
2026-07-02 KLM7910 GRQ → GRQ Jul 2, 17:35 UTCJul 2, 19:15 UTC1h 40m
2026-07-01 KLM7923 GRQ → GRQ Jul 1, 09:05 UTCJul 1, 11:05 UTC2h 0m
2026-07-01 KLM7923 GRQ → GRQ Jul 1, 05:45 UTCJul 1, 07:50 UTC2h 5m
2026-06-30 KLM7922 GRQ → GRQ Jun 30, 17:45 UTCJun 30, 18:55 UTC1h 10m
2026-06-30 KLM7922 - Jun 30, 12:45 UTCJun 30, 14:15 UTC1h 30m
2026-06-30 KLM7908 - Jun 30, 10:10 UTCJun 30, 11:55 UTC1h 45m
2026-06-30 KLM7908 - Jun 30, 06:30 UTCJun 30, 08:30 UTC2h 0m
2026-06-29 KLM7915 - Jun 29, 15:14 UTCJun 29, 17:19 UTC2h 5m
2026-06-29 KLM7915 GRQ → RKE Jun 29, 12:05 UTCJun 29, 13:49 UTC1h 45m
2026-06-27 KLM7929 GRQ → GRQ Jun 27, 10:54 UTCJun 27, 12:39 UTC1h 45m
2026-06-27 KLM7929 GRQ → GRQ Jun 27, 07:19 UTCJun 27, 09:29 UTC2h 10m
2026-06-26 KLM7912 - Jun 26, 09:30 UTCJun 26, 11:09 UTC1h 40m
2026-06-26 KLM7912 GRQ → RKE Jun 26, 06:25 UTCJun 26, 08:00 UTC1h 35m
2026-06-23 KLM7914 GRQ → MMX Jun 23, 09:49 UTCJun 23, 11:54 UTC2h 5m
2026-06-23 KLM7914 GRQ → MMX Jun 23, 06:04 UTCJun 23, 07:55 UTC1h 50m
2026-06-12 KLM7901 GRQ → GRQ Jun 12, 10:20 UTCJun 12, 12:15 UTC1h 55m
2026-06-11 KLM7916 GRQ → GRQ Jun 11, 10:35 UTCJun 11, 12:45 UTC2h 10m
2026-06-11 PHKFE GRQ → GRQ Jun 11, 06:30 UTCJun 11, 07:50 UTC1h 20m
2026-06-10 KLM7918 GRQ → GRQ Jun 10, 17:05 UTCJun 10, 19:05 UTC2h 0m
2026-06-10 KLM7918 GRQ → GRQ Jun 10, 13:40 UTCJun 10, 15:55 UTC2h 15m
2026-06-10 KLM7922 MMX → GRQ Jun 10, 09:55 UTCJun 10, 11:40 UTC1h 45m
2026-06-10 KLM7922 MMX → GRQ Jun 10, 06:10 UTCJun 10, 08:10 UTC2h 0m
2026-06-09 PHKFE GRQ → GRQ Jun 9, 06:15 UTCJun 9, 07:35 UTC1h 20m
2026-06-08 PHKFE GRQ → GRQ Jun 8, 14:50 UTCJun 8, 15:55 UTC1h 5m
2026-06-08 PHKFE GRQ → GRQ Jun 8, 11:50 UTCJun 8, 13:10 UTC1h 20m

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

Mode-S 485991 frequently asked

What is Mode-S code 485991?
485991 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-KFE.
Where is Mode-S 485991 registered?
Mode-S code 485991 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 485991 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 485991, octal 22054621, decimal 4,741,521.
What flights does 485991 operate?
Mode-S 485991 has broadcast 16 distinct callsigns, including PHKFE, KLM7916, KLM7918, KLM7922, KLM7901.