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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 KLM57D · 3,000 ft
Flights observed
751
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 20:30 UTC

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
KLC1070 KLM Cityhopper 12 2026-07-25
KLC1069 KLM Cityhopper 12 2026-07-25
KLM89U - 10 2026-07-11
KLM48D - 10 2026-07-11
KLM20Q - 10 2026-07-07
KLM1335 KLM Royal Dutch Airlines 9 2026-07-22
KLC1060 - 9 2026-07-14
KLC1059 - 9 2026-07-14
KLM79M - 8 2026-07-06
KLM36K KLM Royal Dutch Airlines 8 2026-07-23
KLM1988 - 8 2026-06-18
KLM1715 KLM Royal Dutch Airlines 8 2026-07-26
KLM92M - 7 2026-07-19
KLM78G - 7 2026-07-01
KLM73J - 7 2026-07-01
KLM59J KLM Royal Dutch Airlines 7 2026-07-23
KLM25X KLM Royal Dutch Airlines 7 2026-07-19
KLM17B KLM Royal Dutch Airlines 7 2026-06-17
KLM1063 KLM Royal Dutch Airlines 7 2026-07-21
KLM1 - 7 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM1715 AMS → LUX Jul 26, 19:50 UTCJul 26, 20:25 UTC35m
2026-07-26 KLM1766 FRA → AMS Jul 26, 17:50 UTCJul 26, 18:25 UTC35m
2026-07-26 KLM21B AMS → BRE Jul 26, 16:35 UTCJul 26, 17:10 UTC35m
2026-07-26 KLM1756 BRE → AMS Jul 26, 13:35 UTCJul 26, 14:15 UTC40m
2026-07-26 KLM49F AMS → HAM Jul 26, 11:10 UTCJul 26, 11:55 UTC45m
2026-07-26 KLM72A GOA → AMS Jul 26, 08:25 UTCJul 26, 10:05 UTC1h 40m
2026-07-26 KLM81F - Jul 26, 06:10 UTCJul 26, 07:30 UTC1h 21m
2026-07-26 KLM1708 MAD → AMS Jul 26, 04:20 UTCJul 26, 05:05 UTC45m
2026-07-25 KLM1715 AMS → LUX Jul 25, 19:40 UTCJul 25, 20:15 UTC35m
2026-07-25 KLM42X POZ → AMS Jul 25, 12:30 UTCJul 25, 13:50 UTC1h 20m
2026-07-25 KLM21A AMS → POZ Jul 25, 10:25 UTCJul 25, 11:35 UTC1h 10m
2026-07-25 KLC1070 SOU → AMS Jul 25, 08:30 UTCJul 25, 09:20 UTC50m
2026-07-25 KLC1069 AMS → SOU Jul 25, 06:55 UTCJul 25, 07:40 UTC45m
2026-07-25 KLM1184 BGO → AMS Jul 25, 04:30 UTCJul 25, 05:35 UTC1h 5m
2026-07-24 KLM1189 AMS → BGO Jul 24, 19:55 UTCJul 24, 21:00 UTC1h 5m
2026-07-24 KLM25M - Jul 24, 16:20 UTCJul 24, 17:15 UTC55m
2026-07-24 KLM45B - Jul 24, 14:40 UTCJul 24, 15:40 UTC1h 0m
2026-07-24 KLM50X - Jul 24, 12:25 UTCJul 24, 13:35 UTC1h 10m
2026-07-24 KLM65A AMS → GVA Jul 24, 10:20 UTCJul 24, 11:25 UTC1h 5m
2026-07-24 KLM1056 BRS → AMS Jul 24, 08:40 UTCJul 24, 09:15 UTC35m
2026-07-24 KLM79H AMS → NWI Jul 24, 07:25 UTCJul 24, 08:00 UTC35m
2026-07-24 KLM78L TRD → AMS Jul 24, 04:10 UTCJul 24, 06:05 UTC1h 55m
2026-07-23 KLM33N AMS → BLL Jul 23, 18:55 UTCJul 23, 20:50 UTC1h 55m
2026-07-23 KLM68V NUE → AMS Jul 23, 16:25 UTCJul 23, 17:05 UTC40m
2026-07-23 KLM1791 AMS → HAJ Jul 23, 15:05 UTCJul 23, 15:45 UTC40m
2026-07-23 KLM44E - Jul 23, 12:45 UTCJul 23, 14:05 UTC1h 20m
2026-07-23 KLM59J AMS → GDN Jul 23, 10:25 UTCJul 23, 11:55 UTC1h 30m
2026-07-23 KLM24J DUS → AMS Jul 23, 08:30 UTCJul 23, 09:15 UTC45m
2026-07-23 KLM57D TRD → AMS Jul 23, 06:35 UTCJul 23, 07:15 UTC40m
2026-07-23 KLM36K POZ → AMS Jul 23, 04:05 UTCJul 23, 05:25 UTC1h 20m
2026-07-22 KLM1335 AMS → AAL Jul 22, 19:20 UTCJul 22, 20:35 UTC1h 15m
2026-07-22 KLM64H KRS → AMS Jul 22, 16:30 UTCJul 22, 17:40 UTC1h 10m
2026-07-22 KLM1187 AMS → BGO Jul 22, 14:40 UTCJul 22, 15:50 UTC1h 10m
2026-07-22 KLM76Y BHX → AMS Jul 22, 12:45 UTCJul 22, 13:25 UTC40m
2026-07-22 KLM81D - Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-21 KLM1063 AMS → CWL Jul 21, 20:55 UTCJul 21, 21:25 UTC30m
2026-07-21 KLM1938 ZAG → AMS Jul 21, 17:25 UTCJul 21, 18:35 UTC1h 10m
2026-07-21 KLM89Y - Jul 21, 15:15 UTCJul 21, 16:30 UTC1h 15m
2026-07-21 KLM1756 BRE → AMS Jul 21, 12:55 UTCJul 21, 13:40 UTC45m
2026-07-21 KLM49F AMS → HAM Jul 21, 11:20 UTCJul 21, 12:05 UTC45m
2026-07-21 KLM34D LBA → AMS Jul 21, 09:25 UTCJul 21, 10:15 UTC50m
2026-07-21 KLM53H AMS → LBA Jul 21, 07:50 UTCJul 21, 08:40 UTC50m
2026-07-21 KLM70M BRS → AMS Jul 21, 05:40 UTCJul 21, 06:40 UTC1h 0m
2026-07-20 KLM51B AMS → BRS Jul 20, 20:10 UTCJul 20, 21:00 UTC50m
2026-07-20 KLM24P CDG → AMS Jul 20, 17:00 UTCJul 20, 18:25 UTC1h 25m
2026-07-20 KLM1307 AMS → TLS Jul 20, 14:55 UTCJul 20, 16:15 UTC1h 20m
2026-07-20 KLM50X - Jul 20, 12:55 UTCJul 20, 14:00 UTC1h 5m
2026-07-20 KLM65A - Jul 20, 10:35 UTCJul 20, 11:40 UTC1h 5m
2026-07-20 KLM24J - Jul 20, 08:40 UTCJul 20, 09:25 UTC45m
2026-07-20 KLM57D AMS → FRA Jul 20, 06:40 UTCJul 20, 07:25 UTC45m

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 KLC1070, KLC1069, KLM89U, KLM48D, KLM20Q.