Apparatus

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sensors Mode-S transponder

484CB4

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BCA · BOEING 737-800

Hex
484CB4
Octal
22046264
Decimal
4,738,228
Country
NL
Tail
PH-BCA
Type
B738
No current signal · last broadcast 1h ago
Flights observed
435
Distinct callsigns
20
Country
NL
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 484CB4.

Country allocation

The ICAO 24-bit address 484CB4 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
KLM60H - 9 2026-07-14
KLM99L KLM Royal Dutch Airlines 6 2026-05-29
KLM80R - 6 2026-07-03
KLM1377 - 6 2026-07-02
KLM95P - 5 2026-07-10
KLM74L KLM Royal Dutch Airlines 5 2026-05-18
KLM62D - 5 2026-07-10
KLM59N - 5 2026-06-30
KLM56W - 5 2026-07-11
KLM41U - 5 2026-07-10
KLM1579 KLM Royal Dutch Airlines 5 2026-05-18
KLM1408 - 5 2026-07-13
KLM1407 - 5 2026-07-13
KLM1294 - 5 2026-06-30
KLM961 - 4 2026-06-28
KLM94K - 4 2026-07-10
KLM87P - 4 2026-07-08
KLM85P - 4 2026-07-09
KLM83A KLM Royal Dutch Airlines 4 2026-05-15
KLM67Q - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 KLM76Q - Jul 15, 04:50 UTCJul 15, 05:00 UTC10m
2026-07-14 KLM1621 - Jul 14, 19:50 UTCJul 14, 21:05 UTC1h 15m
2026-07-14 KLM60H - Jul 14, 16:30 UTCJul 14, 18:35 UTC2h 5m
2026-07-14 KLM61M - Jul 14, 12:55 UTCJul 14, 15:30 UTC2h 35m
2026-07-14 KLM46C LIN → AMS Jul 14, 09:25 UTCJul 14, 10:50 UTC1h 25m
2026-07-14 KLM89Q - Jul 14, 06:45 UTCJul 14, 08:00 UTC1h 15m
2026-07-14 KLM90J BER → AMS Jul 14, 04:10 UTCJul 14, 05:10 UTC1h 0m
2026-07-13 KLM27F - Jul 13, 19:25 UTCJul 13, 20:20 UTC55m
2026-07-13 KLM1048 - Jul 13, 17:20 UTCJul 13, 18:05 UTC45m
2026-07-13 KLM93B - Jul 13, 15:25 UTCJul 13, 16:20 UTC55m
2026-07-13 KLM1408 - Jul 13, 13:30 UTCJul 13, 14:05 UTC35m
2026-07-13 KLM1407 - Jul 13, 11:10 UTCJul 13, 12:05 UTC55m
2026-07-13 KLM42N GLA → AMS Jul 13, 08:25 UTCJul 13, 09:45 UTC1h 20m
2026-07-13 KLM61B - Jul 13, 06:10 UTCJul 13, 07:15 UTC1h 5m
2026-07-12 KLM64W CPH → AMS Jul 12, 13:15 UTCJul 12, 14:15 UTC1h 0m
2026-07-12 KLM1271 - Jul 12, 11:15 UTCJul 12, 12:10 UTC55m
2026-07-12 KLM924 - Jul 12, 08:50 UTCJul 12, 09:55 UTC1h 5m
2026-07-12 KLM39M AMS → EDI Jul 12, 06:25 UTCJul 12, 07:25 UTC1h 0m
2026-07-11 KLM82J HEL → AMS Jul 11, 15:45 UTCJul 11, 17:50 UTC2h 5m
2026-07-11 KLM69H - Jul 11, 12:40 UTCJul 11, 14:40 UTC2h 0m
2026-07-11 KLM68J - Jul 11, 10:15 UTCJul 11, 11:15 UTC1h 0m
2026-07-11 KLM63J - Jul 11, 07:55 UTCJul 11, 08:55 UTC1h 0m
2026-07-11 KLM56W OPO → AMS Jul 11, 04:05 UTCJul 11, 06:15 UTC2h 10m
2026-07-10 KLM41U - Jul 10, 18:50 UTCJul 10, 21:05 UTC2h 15m
2026-07-10 KLM10X NCE → AMS Jul 10, 15:45 UTCJul 10, 17:20 UTC1h 35m
2026-07-10 KLM41F - Jul 10, 12:45 UTCJul 10, 14:25 UTC1h 40m
2026-07-10 KLM62D - Jul 10, 09:30 UTCJul 10, 10:45 UTC1h 15m
2026-07-10 KLM95P - Jul 10, 07:25 UTCJul 10, 08:30 UTC1h 5m
2026-07-10 KLM94K BUD → AMS Jul 10, 04:15 UTCJul 10, 06:10 UTC1h 55m
2026-07-09 KLM85P - Jul 9, 19:45 UTCJul 9, 21:15 UTC1h 30m
2026-07-09 KLM98A - Jul 9, 14:35 UTCJul 9, 17:20 UTC2h 45m
2026-07-09 KLM51E - Jul 9, 10:55 UTCJul 9, 13:10 UTC2h 15m
2026-07-09 KLM96D - Jul 9, 08:50 UTCJul 9, 09:15 UTC25m
2026-07-09 KLM91Z - Jul 9, 07:20 UTCJul 9, 07:45 UTC25m
2026-07-09 KLM72R - Jul 9, 05:10 UTCJul 9, 06:00 UTC50m
2026-07-08 KLM49W - Jul 8, 19:35 UTCJul 8, 20:20 UTC45m
2026-07-08 KLM1368 BUD → AMS Jul 8, 16:15 UTCJul 8, 18:05 UTC1h 50m
2026-07-08 KLM1367 - Jul 8, 13:35 UTCJul 8, 15:10 UTC1h 35m
2026-07-08 KLM1512 - Jul 8, 09:25 UTCJul 8, 11:10 UTC1h 45m
2026-07-08 KLM87P - Jul 8, 06:30 UTCJul 8, 08:10 UTC1h 40m
2026-07-07 KLM26Y VIE → AMS Jul 7, 18:05 UTCJul 7, 19:40 UTC1h 35m
2026-07-07 KLM1905 - Jul 7, 15:55 UTCJul 7, 17:05 UTC1h 10m
2026-07-07 KLM80B - Jul 7, 11:50 UTCJul 7, 14:20 UTC2h 30m
2026-07-07 KLM77U - Jul 7, 08:10 UTCJul 7, 10:35 UTC2h 25m
2026-07-07 KLM1958 - Jul 7, 03:30 UTCJul 7, 06:30 UTC3h 0m
2026-07-06 KLM1961 - Jul 6, 19:40 UTCJul 6, 22:25 UTC2h 45m
2026-07-06 KLM1960 - Jul 6, 14:45 UTCJul 6, 17:50 UTC3h 5m
2026-07-06 KLM1959 - Jul 6, 10:30 UTCJul 6, 13:15 UTC2h 45m
2026-07-06 KLM12B - Jul 6, 08:05 UTCJul 6, 08:50 UTC45m
2026-07-06 KLM1403 - Jul 6, 05:40 UTCJul 6, 06:25 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-BCA page for operator, model, and routing details .

Mode-S 484CB4 frequently asked

What is Mode-S code 484CB4?
484CB4 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BCA.
Where is Mode-S 484CB4 registered?
Mode-S code 484CB4 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484CB4 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484CB4, octal 22046264, decimal 4,738,228.
What flights does 484CB4 operate?
Mode-S 484CB4 has broadcast 20 distinct callsigns, including KLM60H, KLM99L, KLM80R, KLM1377, KLM95P.