Apparatus

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sensors Mode-S transponder

484557

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BXZ · BOEING 737-800

Hex
484557
Octal
22042527
Decimal
4,736,343
Country
NL
Tail
PH-BXZ
Type
B738
No current signal · last broadcast Jul 26, 18:10 UTC
Flights observed
496
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 18:10 UTC

Last known position

Most recent position reported by Mode-S 484557.

Country allocation

The ICAO 24-bit address 484557 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
KLM55C - 6 2026-07-07
KLM34A - 6 2026-07-13
KLM1961 KLM Royal Dutch Airlines 6 2026-07-24
KLM1958 KLM Royal Dutch Airlines 6 2026-07-25
KLM92B KLM Royal Dutch Airlines 5 2026-07-20
KLM45Q KLM Royal Dutch Airlines 5 2026-07-19
KLM44Y - 5 2026-07-07
KLM26Y - 5 2026-07-09
KLM23F - 5 2026-07-13
KLM1905 - 5 2026-07-09
KLM1403 - 5 2026-07-05
KLM12B - 5 2026-07-05
KLM99B - 4 2026-07-01
KLM961 - 4 2026-07-10
KLM91A KLM Royal Dutch Airlines 4 2026-06-15
KLM90J - 4 2026-06-26
KLM84A - 4 2026-07-03
KLM78W - 4 2026-06-23
KLM77F - 4 2026-07-05
KLM66G - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM82J BHX → AMS Jul 26, 16:00 UTCJul 26, 18:10 UTC2h 10m
2026-07-26 KLM69H AMS → BER Jul 26, 13:00 UTCJul 26, 14:55 UTC1h 55m
2026-07-26 KLM68J BRE → AMS Jul 26, 10:35 UTCJul 26, 11:40 UTC1h 5m
2026-07-26 KLM63J AMS → HAM Jul 26, 08:05 UTCJul 26, 09:00 UTC55m
2026-07-26 KLM56W BGO → AMS Jul 26, 04:10 UTCJul 26, 06:30 UTC2h 20m
2026-07-25 KLM41U AMS → NCE Jul 25, 19:10 UTCJul 25, 21:05 UTC1h 55m
2026-07-25 KLM1780 HAM → AMS Jul 25, 15:40 UTCJul 25, 16:40 UTC1h 0m
2026-07-25 KLM1779 AMS → BER Jul 25, 13:50 UTCJul 25, 14:45 UTC55m
2026-07-25 KLM1166 HEL → AMS Jul 25, 10:05 UTCJul 25, 11:20 UTC1h 15m
2026-07-25 KLM1165 AMS → HEL Jul 25, 07:55 UTCJul 25, 09:10 UTC1h 15m
2026-07-25 KLM1958 ZRH → AMS Jul 25, 03:25 UTCJul 25, 06:25 UTC3h 0m
2026-07-24 KLM1961 AMS → ZRH Jul 24, 19:30 UTCJul 24, 22:30 UTC3h 0m
2026-07-24 KLM14D LIN → AMS Jul 24, 15:05 UTCJul 24, 16:30 UTC1h 25m
2026-07-24 KLM99D AMS → LIN Jul 24, 12:50 UTCJul 24, 14:00 UTC1h 10m
2026-07-24 KLM96D NCE → AMS Jul 24, 09:25 UTCJul 24, 09:55 UTC30m
2026-07-24 KLM91Z AMS → BRU Jul 24, 07:05 UTCJul 24, 07:25 UTC20m
2026-07-24 KLM64F WAW → AMS Jul 24, 04:15 UTCJul 24, 05:50 UTC1h 35m
2026-07-23 KLM73D AMS → MAD Jul 23, 19:20 UTCJul 23, 20:55 UTC1h 35m
2026-07-23 KLM10X NCE → AMS Jul 23, 16:10 UTCJul 23, 17:55 UTC1h 45m
2026-07-23 KLM41F AMS → NCE Jul 23, 12:55 UTCJul 23, 14:30 UTC1h 35m
2026-07-23 KLM1512 NWI → AMS Jul 23, 09:40 UTCJul 23, 11:35 UTC1h 55m
2026-07-23 KLM87P AMS → BCN Jul 23, 06:20 UTCJul 23, 08:05 UTC1h 45m
2026-07-22 KLM30E CPH → AMS Jul 22, 14:55 UTCJul 22, 15:55 UTC1h 0m
2026-07-22 KLM79C AMS → CPH Jul 22, 12:55 UTCJul 22, 13:55 UTC1h 0m
2026-07-22 KLM42W BLL → AMS Jul 22, 04:15 UTCJul 22, 05:05 UTC50m
2026-07-21 KLM1301 AMS → BLL Jul 21, 20:10 UTCJul 21, 21:00 UTC50m
2026-07-21 KLM88B ZRH → AMS Jul 21, 17:25 UTCJul 21, 18:35 UTC1h 10m
2026-07-21 KLM91X - Jul 21, 15:30 UTCJul 21, 16:30 UTC1h 0m
2026-07-21 KLM80B - Jul 21, 11:50 UTCJul 21, 14:15 UTC2h 25m
2026-07-21 KLM77U AMS → AGP Jul 21, 08:15 UTCJul 21, 10:45 UTC2h 30m
2026-07-21 KLM34E MUC → AMS Jul 21, 05:30 UTCJul 21, 06:40 UTC1h 10m
2026-07-20 KLM83R AMS → STR Jul 20, 19:40 UTCJul 20, 20:35 UTC55m
2026-07-20 KLM1540 LBA → AMS Jul 20, 16:05 UTCJul 20, 18:10 UTC2h 5m
2026-07-20 KLM1539 AMS → MME Jul 20, 12:05 UTCJul 20, 14:25 UTC2h 20m
2026-07-20 KLM84M BOD → AMS Jul 20, 09:25 UTCJul 20, 10:50 UTC1h 25m
2026-07-20 KLM89D - Jul 20, 07:00 UTCJul 20, 08:20 UTC1h 20m
2026-07-20 KLM92B GOT → AMS Jul 20, 04:10 UTCJul 20, 05:20 UTC1h 10m
2026-07-19 KLM45Q AMS → GOT Jul 19, 19:55 UTCJul 19, 21:05 UTC1h 10m
2026-07-19 KLM62R - Jul 19, 16:00 UTCJul 19, 18:35 UTC2h 35m
2026-07-19 KLM1375 AMS → OTP Jul 19, 12:15 UTCJul 19, 14:30 UTC2h 15m
2026-07-19 KLM1754 - Jul 19, 10:15 UTCJul 19, 10:55 UTC40m
2026-07-19 KLM1753 AMS → BRE Jul 19, 08:30 UTCJul 19, 09:10 UTC40m
2026-07-19 KLM76Q LIN → AMS Jul 19, 04:45 UTCJul 19, 06:05 UTC1h 20m
2026-07-18 KLM1621 - Jul 18, 20:05 UTCJul 18, 21:20 UTC1h 15m
2026-07-18 KLM1504 - Jul 18, 12:25 UTCJul 18, 14:15 UTC1h 50m
2026-07-18 KLM77G AMS → MAD Jul 18, 08:45 UTCJul 18, 10:50 UTC2h 5m
2026-07-18 KLM92B GOT → AMS Jul 18, 04:05 UTCJul 18, 05:15 UTC1h 10m
2026-07-17 KLM45Q - Jul 17, 21:20 UTCJul 17, 22:20 UTC1h 0m
2026-07-17 KLM1412 - Jul 17, 19:25 UTCJul 17, 20:04 UTC40m
2026-07-17 KLM1411 - Jul 17, 17:15 UTCJul 17, 18:10 UTC55m

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

Mode-S 484557 frequently asked

What is Mode-S code 484557?
484557 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BXZ.
Where is Mode-S 484557 registered?
Mode-S code 484557 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484557 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484557, octal 22042527, decimal 4,736,343.
What flights does 484557 operate?
Mode-S 484557 has broadcast 20 distinct callsigns, including KLM55C, KLM34A, KLM1961, KLM1958, KLM92B.