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sensors Mode-S transponder

485B44

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BKD · BOEING 787-10 Dreamliner

Hex
485B44
Octal
22055504
Decimal
4,741,956
Country
NL
Tail
PH-BKD
Type
B78X
Broadcasting now · callsign KLM563 · 20,650 ft
Flights observed
200
Distinct callsigns
20
Country
NL
Last broadcast
8m ago

Current position

485B44 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 485B44 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
KLM706 - 11 2026-07-01
KLM705 - 11 2026-07-01
KLM373 - 11 2026-07-07
KLM611 - 9 2026-07-09
KLM879 - 8 2026-07-13
KLM48 - 8 2026-07-09
KLM282 KLM Royal Dutch Airlines 8 2026-07-07
KLM565 - 7 2026-07-08
KLM741 - 6 2026-06-28
KLM880 - 5 2026-07-13
KLM871 KLM Royal Dutch Airlines 5 2026-07-04
KLM642 - 5 2026-07-05
KLM641 - 5 2026-07-05
KLM602 - 5 2026-07-10
KLM601 - 5 2026-07-10
KLM204 - 5 2026-07-12
KLM147 - 5 2026-07-12
KLM888 KLM Royal Dutch Airlines 4 2026-04-15
KLM872 - 4 2026-07-04
KLM644 - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KLM563 - Jul 14, 08:55 UTCJul 14, 09:00 UTC5m
2026-07-13 KLM880 - Jul 13, 21:35 UTCJul 14, 06:10 UTC8h 35m
2026-07-13 KLM879 - Jul 13, 17:15 UTCJul 13, 17:25 UTC10m
2026-07-13 KLM879 - Jul 13, 08:45 UTCJul 13, 15:45 UTC7h 0m
2026-07-12 KLM204 YYZ → AMS Jul 12, 21:00 UTCJul 13, 03:50 UTC6h 50m
2026-07-12 KLM147 - Jul 12, 09:40 UTCJul 12, 16:55 UTC7h 15m
2026-07-11 KLM204 YYZ → AMS Jul 11, 21:05 UTCJul 12, 03:45 UTC6h 40m
2026-07-11 KLM147 - Jul 11, 09:45 UTCJul 11, 17:00 UTC7h 15m
2026-07-10 KLM602 - Jul 10, 21:00 UTCJul 11, 07:00 UTC10h 0m
2026-07-10 KLM601 - Jul 10, 08:15 UTCJul 10, 18:45 UTC10h 30m
2026-07-09 KLM48 - Jul 9, 22:25 UTCJul 10, 05:25 UTC7h 0m
2026-07-09 KLM611 - Jul 9, 11:20 UTCJul 9, 19:20 UTC8h 0m
2026-07-09 KLM174 - Jul 9, 03:00 UTCJul 9, 07:15 UTC4h 15m
2026-07-08 KLM565 - Jul 8, 10:50 UTCJul 8, 14:10 UTC3h 20m
2026-07-07 KLM282 SFO → AMS Jul 7, 21:10 UTCJul 8, 06:40 UTC9h 30m
2026-07-07 KLM373 - Jul 7, 17:30 UTCJul 7, 18:35 UTC1h 5m
2026-07-07 KLM373 - Jul 7, 08:05 UTCJul 7, 17:25 UTC9h 20m
2026-07-05 KLM642 - Jul 5, 21:45 UTCJul 6, 03:40 UTC5h 55m
2026-07-05 KLM641 - Jul 5, 11:10 UTCJul 5, 18:35 UTC7h 25m
2026-07-04 KLM872 DEL → AMS Jul 4, 22:50 UTCJul 5, 07:10 UTC8h 20m
2026-07-04 KLM871 AMS → DEL Jul 4, 12:50 UTCJul 4, 19:45 UTC6h 55m
2026-07-04 KLM604 - Jul 4, 00:10 UTCJul 4, 09:50 UTC9h 40m
2026-07-03 KLM603 AMS → LAX Jul 3, 11:30 UTCJul 3, 22:00 UTC10h 30m
2026-07-03 KLM644 JFK → AMS Jul 3, 02:30 UTCJul 3, 08:35 UTC6h 5m
2026-07-02 KLM643 - Jul 2, 15:45 UTCJul 2, 23:15 UTC7h 30m
2026-07-01 KLM706 - Jul 1, 20:20 UTCJul 2, 12:20 UTC16h 0m
2026-07-01 KLM706 - Jul 1, 15:30 UTCJul 2, 12:20 UTC20h 50m
2026-07-01 KLM705 - Jul 1, 13:05 UTCJul 2, 12:20 UTC23h 15m
2026-07-01 KLM705 - Jul 1, 12:30 UTCJul 2, 11:00 UTC22h 30m
2026-06-30 KLM872 DEL → AMS Jun 30, 22:45 UTCJul 1, 07:05 UTC8h 20m
2026-06-30 KLM871 AMS → DEL Jun 30, 12:50 UTCJun 30, 20:20 UTC7h 30m
2026-06-29 KLM604 - Jun 29, 23:54 UTCJun 30, 09:55 UTC10h 1m
2026-06-29 KLM603 AMS → LAX Jun 29, 11:14 UTCJun 29, 21:30 UTC10h 15m
2026-06-28 KLM741 - Jun 28, 23:50 UTCJun 29, 08:24 UTC8h 35m
2026-06-28 KLM741 - Jun 28, 08:14 UTCJun 28, 09:55 UTC1h 40m
2026-06-27 KLM569 - Jun 27, 11:04 UTCJun 28, 05:15 UTC18h 10m
2026-06-27 KLM569 - Jun 27, 09:04 UTCJun 28, 05:15 UTC20h 10m
2026-06-27 KLM569 AMS → AMS Jun 27, 08:25 UTCJun 28, 05:15 UTC20h 50m
2026-06-25 KLM642 - Jun 25, 21:25 UTCJun 26, 03:34 UTC6h 10m
2026-06-25 KLM641 - Jun 25, 11:04 UTCJun 25, 18:29 UTC7h 25m
2026-06-22 KLM48 ORD → AMS Jun 22, 22:30 UTCJun 23, 05:24 UTC6h 55m
2026-06-22 KLM611 AMS → ORD Jun 22, 12:05 UTCJun 22, 19:54 UTC7h 50m
2026-06-21 KLM872 DEL → AMS Jun 21, 23:05 UTCJun 22, 07:19 UTC8h 15m
2026-06-21 KLM871 AMS → DEL Jun 21, 13:59 UTCJun 21, 20:59 UTC7h 0m
2026-06-20 KLM604 - Jun 20, 23:59 UTCJun 21, 09:44 UTC9h 45m
2026-06-20 KLM603 AMS → LAX Jun 20, 11:20 UTCJun 20, 21:44 UTC10h 25m
2026-06-19 KLM282 SFO → AMS Jun 19, 21:44 UTCJun 20, 07:14 UTC9h 30m
2026-06-19 KLM373 AMS → SFO Jun 19, 09:09 UTCJun 19, 19:04 UTC9h 55m
2026-06-17 KLM616 - Jun 17, 20:20 UTCJun 18, 05:15 UTC8h 55m
2026-06-17 KLM615 AMS → PDX Jun 17, 08:40 UTCJun 17, 18:00 UTC9h 20m

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

Mode-S 485B44 frequently asked

What is Mode-S code 485B44?
485B44 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BKD.
Where is Mode-S 485B44 registered?
Mode-S code 485B44 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 485B44 broadcasting right now?
Yes. Mode-S 485B44 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 485B44, octal 22055504, decimal 4,741,956.
What flights does 485B44 operate?
Mode-S 485B44 has broadcast 20 distinct callsigns, including KLM706, KLM705, KLM373, KLM611, KLM879.