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sensors Mode-S transponder

4853F4

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-EXJ · EMBRAER ERJ-170-200 (long wing)

Hex
4853F4
Octal
22051764
Decimal
4,740,084
Country
NL
Tail
PH-EXJ
Type
E75L
No current signal · last broadcast 6h ago
Flights observed
660
Distinct callsigns
20
Country
NL
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4853F4.

Country allocation

The ICAO 24-bit address 4853F4 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
KLM89U - 10 2026-07-11
KLM48D - 10 2026-07-11
KLM20Q - 10 2026-07-07
KLC1070 - 10 2026-06-25
KLC1069 - 10 2026-06-25
KLC1060 - 9 2026-07-14
KLC1059 - 9 2026-07-14
KLM79M - 8 2026-07-06
KLM1988 - 8 2026-06-18
KLM78G - 7 2026-07-01
KLM73J - 7 2026-07-01
KLM17B KLM Royal Dutch Airlines 7 2026-06-17
KLM1 - 7 2026-06-17
KLM948 - 6 2026-06-16
KLM947 - 6 2026-06-16
KLM92M - 6 2026-07-10
KLM80X KLM Royal Dutch Airlines 6 2026-06-11
KLM80N - 6 2026-07-12
KLM60Y - 6 2026-07-09
KLM59J - 6 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KLM1715 - Jul 14, 19:55 UTCJul 14, 20:30 UTC35m
2026-07-14 KLC1060 - Jul 14, 16:25 UTCJul 14, 17:00 UTC35m
2026-07-14 KLC1059 - Jul 14, 15:15 UTCJul 14, 15:50 UTC35m
2026-07-14 KLM82A BRU → AMS Jul 14, 13:30 UTCJul 14, 14:00 UTC30m
2026-07-14 KLM83V - Jul 14, 12:05 UTCJul 14, 12:35 UTC30m
2026-07-14 KLM96H - Jul 14, 10:05 UTCJul 14, 10:55 UTC50m
2026-07-14 KLM1817 - Jul 14, 08:05 UTCJul 14, 08:50 UTC45m
2026-07-14 KLM58G - Jul 14, 06:35 UTCJul 14, 07:00 UTC25m
2026-07-14 KLM89W AMS → BRU Jul 14, 05:15 UTCJul 14, 05:40 UTC25m
2026-07-13 KLC1060 NWI → AMS Jul 13, 16:40 UTCJul 13, 17:10 UTC30m
2026-07-13 KLC1059 - Jul 13, 15:25 UTCJul 13, 16:00 UTC35m
2026-07-13 KLM82A BRU → AMS Jul 13, 13:50 UTCJul 13, 14:15 UTC25m
2026-07-13 KLM83V - Jul 13, 12:25 UTCJul 13, 13:00 UTC35m
2026-07-13 KLM1800 - Jul 13, 10:55 UTCJul 13, 11:30 UTC35m
2026-07-13 KLM1799 - Jul 13, 09:35 UTCJul 13, 10:10 UTC35m
2026-07-13 KLM70Z PRG → AMS Jul 13, 07:10 UTCJul 13, 08:30 UTC1h 20m
2026-07-13 KLM47C - Jul 13, 05:20 UTCJul 13, 06:20 UTC1h 0m
2026-07-12 KLM30Q STR → AMS Jul 12, 16:40 UTCJul 12, 17:50 UTC1h 10m
2026-07-12 KLM87E AMS → STR Jul 12, 14:55 UTCJul 12, 15:45 UTC50m
2026-07-12 KLM80N - Jul 12, 12:40 UTCJul 12, 13:55 UTC1h 15m
2026-07-12 KLM25C - Jul 12, 10:45 UTCJul 12, 11:50 UTC1h 5m
2026-07-12 KLM46Z - Jul 12, 08:25 UTCJul 12, 09:20 UTC55m
2026-07-12 KLM1291 - Jul 12, 06:50 UTCJul 12, 07:40 UTC50m
2026-07-12 KLM84B - Jul 12, 04:15 UTCJul 12, 05:50 UTC1h 35m
2026-07-11 KLM1247 - Jul 11, 19:40 UTCJul 11, 21:10 UTC1h 30m
2026-07-11 KLM48D - Jul 11, 16:40 UTCJul 11, 17:55 UTC1h 15m
2026-07-11 KLM89U - Jul 11, 14:55 UTCJul 11, 16:00 UTC1h 5m
2026-07-11 KLM78M - Jul 11, 13:05 UTCJul 11, 14:00 UTC55m
2026-07-11 KLM1945 - Jul 11, 11:15 UTCJul 11, 12:15 UTC1h 0m
2026-07-11 KLM52R - Jul 11, 08:50 UTCJul 11, 10:05 UTC1h 15m
2026-07-11 KLM1229 - Jul 11, 07:00 UTCJul 11, 08:10 UTC1h 10m
2026-07-11 KLM28H BRU → AMS Jul 11, 04:45 UTCJul 11, 05:05 UTC20m
2026-07-10 KLM65C AMS → BRU Jul 10, 20:10 UTCJul 10, 20:45 UTC35m
2026-07-10 KLM30Q STR → AMS Jul 10, 16:45 UTCJul 10, 17:45 UTC1h 0m
2026-07-10 KLM87E AMS → STR Jul 10, 15:10 UTCJul 10, 16:00 UTC50m
2026-07-10 KLM56G OSL → AMS Jul 10, 12:45 UTCJul 10, 14:05 UTC1h 20m
2026-07-10 KLM41B - Jul 10, 10:30 UTCJul 10, 11:55 UTC1h 25m
2026-07-10 KLM92M NUE → AMS Jul 10, 08:15 UTCJul 10, 09:10 UTC55m
2026-07-10 KLM25X - Jul 10, 06:30 UTCJul 10, 07:20 UTC50m
2026-07-10 KLM28H - Jul 10, 04:40 UTCJul 10, 05:00 UTC20m
2026-07-09 KLM65C - Jul 9, 19:50 UTCJul 9, 20:15 UTC25m
2026-07-09 KLC1060 NWI → AMS Jul 9, 16:55 UTCJul 9, 17:25 UTC30m
2026-07-09 KLC1059 - Jul 9, 15:35 UTCJul 9, 16:10 UTC35m
2026-07-09 KLM64W - Jul 9, 13:00 UTCJul 9, 14:00 UTC1h 0m
2026-07-09 KLM1271 - Jul 9, 11:05 UTCJul 9, 12:00 UTC55m
2026-07-09 KLM70Y - Jul 9, 09:00 UTCJul 9, 09:50 UTC50m
2026-07-09 KLM69Y - Jul 9, 07:15 UTCJul 9, 08:25 UTC1h 10m
2026-07-09 KLM60Y - Jul 9, 05:15 UTCJul 9, 05:50 UTC35m
2026-07-08 KLM1063 - Jul 8, 20:55 UTCJul 8, 21:30 UTC35m
2026-07-08 KLM64H KRS → AMS Jul 8, 16:40 UTCJul 8, 17:45 UTC1h 5m

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

Mode-S 4853F4 frequently asked

What is Mode-S code 4853F4?
4853F4 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-EXJ.
Where is Mode-S 4853F4 registered?
Mode-S code 4853F4 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4853F4 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4853F4, octal 22051764, decimal 4,740,084.
What flights does 4853F4 operate?
Mode-S 4853F4 has broadcast 20 distinct callsigns, including KLM89U, KLM48D, KLM20Q, KLC1070, KLC1069.