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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
Broadcasting now · callsign KLM967 · 2,075 ft
Flights observed
343
Distinct callsigns
20
Country
NL
Last broadcast
3h ago

Current position

4853F4 is currently broadcasting. Map zoomed to live position.

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 KLM Royal Dutch Airlines 8 2026-05-24
KLM48D KLM Royal Dutch Airlines 8 2026-05-24
KLM20Q KLM Royal Dutch Airlines 7 2026-05-22
KLC1070 KLM Cityhopper 7 2026-05-15
KLC1069 KLM Cityhopper 7 2026-05-15
KLM78G KLM Royal Dutch Airlines 6 2026-05-22
KLM73J KLM Royal Dutch Airlines 6 2026-05-22
KLM1988 KLM Royal Dutch Airlines 6 2026-05-25
KLM948 KLM Royal Dutch Airlines 5 2026-05-25
KLM947 KLM Royal Dutch Airlines 5 2026-05-25
KLM79M KLM Royal Dutch Airlines 5 2026-05-21
KLM17B KLM Royal Dutch Airlines 5 2026-05-24
KLM92M KLM Royal Dutch Airlines 4 2026-05-22
KLM80X KLM Royal Dutch Airlines 4 2026-05-04
KLM60Y KLM Royal Dutch Airlines 4 2026-05-30
KLM59J KLM Royal Dutch Airlines 4 2026-04-16
KLM49G KLM Royal Dutch Airlines 4 2026-05-04
KLM25X KLM Royal Dutch Airlines 4 2026-05-22
KLM1063 KLM Royal Dutch Airlines 4 2026-05-29
KLM98Q KLM Royal Dutch Airlines 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KLM1246 CDG → AMS May 30, 15:55 UTCMay 30, 17:25 UTC1h 30m
2026-05-30 KLM1245 AMS → CDG May 30, 14:00 UTCMay 30, 15:20 UTC1h 20m
2026-05-30 KLM74E TRD → AMS May 30, 10:20 UTCMay 30, 12:15 UTC1h 55m
2026-05-30 KLM53F AMS → TRN May 30, 07:45 UTCMay 30, 09:35 UTC1h 50m
2026-05-30 KLM60Y NWI → AMS May 30, 05:10 UTCMay 30, 05:40 UTC30m
2026-05-29 KLM1063 AMS → CWL May 29, 20:55 UTCMay 29, 21:30 UTC35m
2026-05-29 KLM72B PRG → AMS May 29, 18:35 UTCMay 29, 19:50 UTC1h 15m
2026-05-29 KLM75R AMS → PRG May 29, 16:45 UTCMay 29, 17:55 UTC1h 10m
2026-05-29 KLM1034 LPL → AMS May 29, 13:20 UTCMay 29, 14:20 UTC1h 0m
2026-05-29 KLM89A AMS → CAG May 29, 11:10 UTCMay 29, 12:05 UTC55m
2026-05-29 KLM70Y CWL → AMS May 29, 08:55 UTCMay 29, 09:50 UTC55m
2026-05-29 KLM69Y AMS → CWL May 29, 07:15 UTCMay 29, 08:15 UTC1h 0m
2026-05-29 KLM26U NUE → AMS May 29, 04:05 UTCMay 29, 05:20 UTC1h 15m
2026-05-28 KLM21M AMS → WRO May 28, 19:40 UTCMay 28, 21:00 UTC1h 20m
2026-05-28 KLM24P CDG → AMS May 28, 16:55 UTCMay 28, 18:20 UTC1h 25m
2026-05-28 KLM1307 AMS → TLS May 28, 14:40 UTCMay 28, 16:00 UTC1h 20m
2026-05-28 KLM916 SOU → AMS May 28, 12:00 UTCMay 28, 13:10 UTC1h 10m
2026-05-28 KLM83E AMS → ABZ May 28, 10:05 UTCMay 28, 11:20 UTC1h 15m
2026-05-28 KLM52R STR → AMS May 28, 07:55 UTCMay 28, 09:05 UTC1h 10m
2026-05-28 KLM1229 AMS → CDG May 28, 06:00 UTCMay 28, 07:05 UTC1h 5m
2026-05-28 KLM9956 CWL → WAW May 28, 04:30 UTCMay 28, 04:55 UTC25m
2026-05-26 KLM65C AMS → BRU May 26, 19:55 UTCMay 26, 20:15 UTC20m
2026-05-26 KLM1766 FRA → AMS May 26, 16:35 UTCMay 26, 17:15 UTC40m
2026-05-26 KLM21B AMS → BRE May 26, 15:20 UTCMay 26, 15:54 UTC35m
2026-05-26 KLM20J KRK → AMS May 26, 12:20 UTCMay 26, 13:54 UTC1h 35m
2026-05-26 KLM95V AMS → KRK May 26, 09:55 UTCMay 26, 11:24 UTC1h 30m
2026-05-26 KLM70Z PRG → AMS May 26, 07:10 UTCMay 26, 08:24 UTC1h 15m
2026-05-26 KLM47C AMS → ZRH May 26, 05:15 UTCMay 26, 06:29 UTC1h 15m
2026-05-25 KLM1246 CDG → AMS May 25, 15:35 UTCMay 25, 17:10 UTC1h 35m
2026-05-25 KLM1245 AMS → CDG May 25, 13:40 UTCMay 25, 15:00 UTC1h 20m
2026-05-25 KLM948 BHD → AMS May 25, 09:10 UTCMay 25, 10:15 UTC1h 5m
2026-05-25 KLM947 AMS → BHD May 25, 07:00 UTCMay 25, 08:15 UTC1h 15m
2026-05-25 KLM1988 BSL → AMS May 25, 04:05 UTCMay 25, 05:35 UTC1h 30m
2026-05-24 KLM17B AMS → LJU May 24, 19:35 UTCMay 24, 21:00 UTC1h 25m
2026-05-24 KLM48D BHD → AMS May 24, 17:00 UTCMay 24, 18:10 UTC1h 10m
2026-05-24 KLM89U AMS → BHD May 24, 15:10 UTCMay 24, 16:15 UTC1h 5m
2026-05-24 KLM1832 BER → AMS May 24, 12:50 UTCMay 24, 13:50 UTC1h 0m
2026-05-24 KLM57T AMS → STR May 24, 10:45 UTCMay 24, 11:35 UTC50m
2026-05-24 KLM76U HUY → AMS May 24, 09:05 UTCMay 24, 09:45 UTC40m
2026-05-24 KLM83U AMS → HUY May 24, 07:40 UTCMay 24, 08:20 UTC40m
2026-05-24 KLM1660 BLQ → AMS May 24, 04:10 UTCMay 24, 05:50 UTC1h 40m
2026-05-23 KLM1667 AMS → PMI May 23, 19:05 UTCMay 23, 20:30 UTC1h 25m
2026-05-23 KLM62W AES → AMS May 23, 15:10 UTCMay 23, 16:40 UTC1h 30m
2026-05-23 KLM87D AMS → MAD May 23, 12:30 UTCMay 23, 14:05 UTC1h 35m
2026-05-23 KLM1124 CPH → AMS May 23, 10:05 UTCMay 23, 11:25 UTC1h 20m
2026-05-23 KLM1123 AMS → ORK May 23, 07:50 UTCMay 23, 09:20 UTC1h 30m
2026-05-23 KLM1988 BSL → AMS May 23, 04:10 UTCMay 23, 05:40 UTC1h 30m
2026-05-22 KLM17B AMS → LJU May 22, 19:35 UTCMay 22, 20:55 UTC1h 20m
2026-05-22 KLM64H KRS → AMS May 22, 16:30 UTCMay 22, 17:40 UTC1h 10m
2026-05-22 KLM1187 AMS → BGO May 22, 14:35 UTCMay 22, 15:45 UTC1h 10m

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?
Yes. Mode-S 4853F4 is currently airborne.
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.