Apparatus

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sensors Mode-S transponder

484C51

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-EZM · EMBRAER ERJ-190-100

Hex
484C51
Octal
22046121
Decimal
4,738,129
Country
NL
Tail
PH-EZM
Type
E190
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
697
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 484C51.

Country allocation

The ICAO 24-bit address 484C51 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
KLM66B KLM Royal Dutch Airlines 16 2026-07-18
KLM43V - 16 2026-07-18
KLM980 - 11 2026-06-23
KLM21F - 10 2026-06-23
KLM67N KLM Royal Dutch Airlines 9 2026-07-24
KLM98C KLM Royal Dutch Airlines 8 2026-07-25
KLM1660 - 8 2026-07-16
KLM86N - 7 2026-06-25
KLM1667 - 7 2026-07-15
KLM87Q KLM Royal Dutch Airlines 6 2026-07-26
KLM47X - 6 2026-07-19
KLM40Q - 6 2026-07-19
KLM37X - 6 2026-06-25
KLM37M KLM Royal Dutch Airlines 6 2026-07-24
KLM1754 - 6 2026-07-02
KLM1753 - 6 2026-07-02
KLM1646 KLM Royal Dutch Airlines 6 2026-07-24
KLM1189 KLM Royal Dutch Airlines 6 2026-07-25
KLM995 KLM Royal Dutch Airlines 5 2026-07-09
KLM98T KLM Royal Dutch Airlines 5 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM87Q AMS → BIO Jul 26, 19:05 UTCJul 26, 20:30 UTC1h 25m
2026-07-26 KLM26G BSL → AMS Jul 26, 16:45 UTCJul 26, 17:55 UTC1h 10m
2026-07-26 KLM79J AMS → BSL Jul 26, 15:00 UTCJul 26, 15:55 UTC55m
2026-07-26 KLM78G GOT → AMS Jul 26, 12:30 UTCJul 26, 13:40 UTC1h 10m
2026-07-26 KLM73J AMS → FRA Jul 26, 10:25 UTCJul 26, 11:30 UTC1h 5m
2026-07-26 KLM46Z BLL → AMS Jul 26, 08:20 UTCJul 26, 09:15 UTC55m
2026-07-26 KLM1291 AMS → BLL Jul 26, 06:40 UTCJul 26, 07:20 UTC40m
2026-07-26 KLM1184 BGO → AMS Jul 26, 04:25 UTCJul 26, 05:30 UTC1h 5m
2026-07-25 KLM1189 AMS → BGO Jul 25, 19:50 UTCJul 25, 21:00 UTC1h 10m
2026-07-25 KLM1558 OVD → AMS Jul 25, 15:15 UTCJul 25, 17:15 UTC2h 0m
2026-07-25 KLM1557 AMS → OVD Jul 25, 12:40 UTCJul 25, 14:15 UTC1h 35m
2026-07-25 KLM94Q SVG → AMS Jul 25, 09:45 UTCJul 25, 10:55 UTC1h 10m
2026-07-25 KLM15L AMS → SVG Jul 25, 07:35 UTCJul 25, 08:45 UTC1h 10m
2026-07-25 KLM98C TLS → AMS Jul 25, 04:25 UTCJul 25, 05:25 UTC1h 0m
2026-07-24 KLM67N AMS → STR Jul 24, 19:40 UTCJul 24, 20:30 UTC50m
2026-07-24 KLM92Z MAN → AMS Jul 24, 16:40 UTCJul 24, 17:30 UTC50m
2026-07-24 KLM97K AMS → TRN Jul 24, 14:55 UTCJul 24, 15:45 UTC50m
2026-07-24 KLM1646 FLR → AMS Jul 24, 12:20 UTCJul 24, 13:55 UTC1h 35m
2026-07-24 KLM37M AMS → GOA Jul 24, 10:05 UTCJul 24, 11:25 UTC1h 20m
2026-07-23 KLM70R TRN → AMS Jul 23, 10:05 UTCJul 23, 11:30 UTC1h 25m
2026-07-23 KLM73Y AMS → TRN Jul 23, 07:45 UTCJul 23, 09:10 UTC1h 25m
2026-07-23 KLM86M BSL → AMS Jul 23, 04:40 UTCJul 23, 05:40 UTC1h 0m
2026-07-22 KLM1949 AMS → BSL Jul 22, 18:50 UTCJul 22, 19:40 UTC50m
2026-07-22 KLM1566 GOA → AMS Jul 22, 15:10 UTCJul 22, 17:00 UTC1h 50m
2026-07-22 KLM1565 AMS → GOA Jul 22, 12:10 UTCJul 22, 14:20 UTC2h 10m
2026-07-22 KLM32D YYZ → AMS Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-21 KLM77A AMS → MAD Jul 21, 19:20 UTCJul 21, 20:50 UTC1h 30m
2026-07-21 KLM1558 OVD → AMS Jul 21, 14:45 UTCJul 21, 16:35 UTC1h 50m
2026-07-21 KLM1557 AMS → OVD Jul 21, 12:15 UTCJul 21, 14:00 UTC1h 45m
2026-07-21 KLM56B GOT → AMS Jul 21, 09:50 UTCJul 21, 10:55 UTC1h 5m
2026-07-21 KLM67F AMS → FRA Jul 21, 07:55 UTCJul 21, 09:05 UTC1h 10m
2026-07-21 KLM84B LPI → AMS Jul 21, 04:10 UTCJul 21, 05:30 UTC1h 20m
2026-07-20 KLM1247 - Jul 20, 19:35 UTCJul 20, 21:00 UTC1h 25m
2026-07-20 KLM974 - Jul 20, 17:00 UTCJul 20, 17:40 UTC40m
2026-07-20 KLM81M - Jul 20, 15:35 UTCJul 20, 16:15 UTC40m
2026-07-20 KLM82A BRU → AMS Jul 20, 13:45 UTCJul 20, 14:10 UTC25m
2026-07-20 KLM83V AMS → BRU Jul 20, 12:30 UTCJul 20, 12:50 UTC20m
2026-07-20 KLM70R TRN → AMS Jul 20, 10:00 UTCJul 20, 11:25 UTC1h 25m
2026-07-20 KLM73Y AMS → TRN Jul 20, 07:50 UTCJul 20, 09:10 UTC1h 20m
2026-07-20 KLM98T BIO → AMS Jul 20, 05:05 UTCJul 20, 06:40 UTC1h 35m
2026-07-19 KLM87Q - Jul 19, 19:00 UTCJul 19, 20:30 UTC1h 30m
2026-07-19 KLM88L RNS → AMS Jul 19, 16:20 UTCJul 19, 17:25 UTC1h 5m
2026-07-19 KLM59D AMS → NUE Jul 19, 14:30 UTCJul 19, 15:35 UTC1h 5m
2026-07-19 KLM40Q MUC → AMS Jul 19, 12:25 UTCJul 19, 13:35 UTC1h 10m
2026-07-19 KLM47X - Jul 19, 10:15 UTCJul 19, 11:20 UTC1h 5m
2026-07-19 KLM70Z - Jul 19, 07:00 UTCJul 19, 08:05 UTC1h 5m
2026-07-19 KLM47C - Jul 19, 05:05 UTCJul 19, 06:05 UTC1h 0m
2026-07-18 KLM1576 ATH → AMS Jul 18, 18:40 UTCJul 18, 20:40 UTC2h 0m
2026-07-18 KLM1575 AMS → ATH Jul 18, 15:15 UTCJul 18, 17:35 UTC2h 20m
2026-07-18 KLM66B GOT → AMS Jul 18, 11:15 UTCJul 18, 12:45 UTC1h 30m

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

Mode-S 484C51 frequently asked

What is Mode-S code 484C51?
484C51 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-EZM.
Where is Mode-S 484C51 registered?
Mode-S code 484C51 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484C51 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484C51, octal 22046121, decimal 4,738,129.
What flights does 484C51 operate?
Mode-S 484C51 has broadcast 20 distinct callsigns, including KLM66B, KLM43V, KLM980, KLM21F, KLM67N.