Apparatus

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sensors Mode-S transponder

4844EF

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-MPS · BOEING 747-400

Hex
4844EF
Octal
22042357
Decimal
4,736,239
Country
NL
Tail
PH-MPS
Type
B744
No current signal · last broadcast 17h ago
Flights observed
94
Distinct callsigns
20
Country
NL
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 4844EF.

Country allocation

The ICAO 24-bit address 4844EF 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
MPH9412 Martinair 14 2026-06-23
MPH9411 - 8 2026-06-22
MPH9432 - 7 2026-07-09
MPH9472 - 6 2026-07-13
MPH9471 - 6 2026-07-13
MPH6142 - 5 2026-07-03
MPH6141 - 5 2026-07-02
MPH9452 - 4 2026-07-11
MPH9442 Martinair 4 2026-05-15
MPH9431 - 4 2026-07-08
MPH8372 - 4 2026-07-06
MPH9451 - 3 2026-07-11
MPH9441 Martinair 2 2026-05-14
MPH8371 - 2 2026-07-05
MPH8342 Martinair 2 2026-06-13
MPH6561 - 2 2026-06-20
MPH6162 Martinair 2 2026-05-17
MPH6161 Martinair 2 2026-05-16
MPH6132 - 2 2026-04-16
MPH6122 Martinair 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 MPH9472 - Jul 13, 16:15 UTCJul 13, 20:45 UTC4h 30m
2026-07-13 MPH9472 - Jul 13, 06:05 UTCJul 13, 06:20 UTC15m
2026-07-13 MPH9471 - Jul 13, 03:10 UTCJul 13, 03:30 UTC20m
2026-07-12 MPH9471 - Jul 12, 16:15 UTCJul 12, 20:10 UTC3h 55m
2026-07-11 MPH9452 - Jul 11, 19:20 UTCJul 12, 00:01 UTC4h 40m
2026-07-11 MPH9452 - Jul 11, 08:15 UTCJul 11, 08:35 UTC20m
2026-07-11 MPH9451 - Jul 11, 04:40 UTCJul 11, 05:10 UTC30m
2026-07-10 MPH9451 - Jul 10, 18:05 UTCJul 10, 21:55 UTC3h 51m
2026-07-09 MPH9432 - Jul 9, 14:30 UTCJul 9, 19:00 UTC4h 30m
2026-07-09 MPH9432 - Jul 9, 03:05 UTCJul 9, 03:20 UTC15m
2026-07-08 MPH9432 - Jul 8, 20:55 UTCJul 8, 23:45 UTC2h 50m
2026-07-08 MPH9431 - Jul 8, 18:15 UTCJul 8, 18:30 UTC15m
2026-07-08 MPH9431 - Jul 8, 07:45 UTCJul 8, 17:25 UTC9h 40m
2026-07-06 MPH8372 - Jul 6, 23:25 UTCJul 7, 01:30 UTC2h 5m
2026-07-06 MPH8372 - Jul 6, 10:35 UTCJul 6, 11:00 UTC25m
2026-07-05 MPH8371 - Jul 5, 21:00 UTCJul 6, 07:15 UTC10h 15m
2026-07-03 MPH6142 - Jul 3, 10:15 UTCJul 3, 18:35 UTC8h 20m
2026-07-03 MPH6142 - Jul 3, 06:15 UTCJul 3, 06:40 UTC25m
2026-07-02 MPH6141 - Jul 2, 22:35 UTCJul 2, 22:55 UTC20m
2026-07-02 MPH6141 - Jul 2, 10:45 UTCJul 2, 19:55 UTC9h 10m
2026-06-23 MPH9412 DWC → AMS Jun 23, 14:15 UTCJun 23, 18:50 UTC4h 35m
2026-06-23 MPH9412 DWC → AMS Jun 23, 03:34 UTCJun 23, 03:54 UTC20m
2026-06-23 MPH9412 DWC → AMS Jun 23, 00:00 UTCJun 23, 00:09 UTC10m
2026-06-22 MPH9412 DWC → AMS Jun 22, 21:14 UTCJun 22, 23:24 UTC2h 10m
2026-06-22 MPH9411 - Jun 22, 18:04 UTCJun 22, 18:24 UTC20m
2026-06-22 MPH9411 - Jun 22, 07:49 UTCJun 22, 17:20 UTC9h 30m
2026-06-20 MPH6562 - Jun 20, 23:19 UTCJun 21, 06:29 UTC7h 10m
2026-06-20 MPH6561 YYZ → ORD Jun 20, 17:19 UTCJun 20, 18:29 UTC1h 10m
2026-06-20 MPH6561 - Jun 20, 08:44 UTCJun 20, 11:14 UTC2h 30m
2026-06-19 MPH6142 MIA → AMS Jun 19, 06:35 UTCJun 19, 14:29 UTC7h 55m
2026-06-19 MPH6142 MIA → AMS Jun 19, 03:34 UTCJun 19, 04:04 UTC30m
2026-06-19 MPH6142 MIA → AMS Jun 19, 01:04 UTCJun 19, 01:15 UTC10m
2026-06-18 MPH6141 GUA → BOG Jun 18, 22:00 UTCJun 18, 22:15 UTC15m
2026-06-18 MPH6141 GUA → BOG Jun 18, 19:15 UTCJun 18, 19:35 UTC20m
2026-06-18 MPH6141 GUA → BOG Jun 18, 07:40 UTCJun 18, 16:40 UTC9h 0m
2026-06-16 MPH9412 DWC → AMS Jun 16, 16:20 UTCJun 16, 20:45 UTC4h 26m
2026-06-16 MPH9412 DWC → AMS Jun 16, 04:15 UTCJun 16, 04:30 UTC15m
2026-06-16 MPH9412 DWC → AMS Jun 16, 00:05 UTCJun 16, 00:20 UTC15m
2026-06-15 MPH9412 DWC → AMS Jun 15, 21:25 UTCJun 15, 23:30 UTC2h 5m
2026-06-15 MPH9411 DWC → HKG Jun 15, 18:35 UTCJun 15, 19:00 UTC25m
2026-06-15 MPH9411 DWC → HKG Jun 15, 08:00 UTCJun 15, 11:54 UTC3h 55m
2026-06-13 MPH8342 NBO → AMS Jun 13, 01:00 UTCJun 13, 03:05 UTC2h 5m
2026-06-12 MPH8342 NBO → AMS Jun 12, 11:45 UTCJun 12, 12:10 UTC25m
2026-06-11 MPH8341 AMS → JNB Jun 11, 22:40 UTCJun 12, 08:30 UTC9h 51m
2026-06-04 MPH9432 ICN → HKG Jun 4, 20:50 UTCJun 5, 01:15 UTC4h 25m
2026-06-04 MPH9432 ICN → HKG Jun 4, 08:55 UTCJun 4, 09:10 UTC15m
2026-06-04 MPH9432 ICN → HKG Jun 4, 06:30 UTCJun 4, 06:45 UTC15m
2026-06-04 MPH9432 ICN → HKG Jun 4, 03:50 UTCJun 4, 05:55 UTC2h 5m
2026-06-04 MPH9431 - Jun 4, 00:35 UTCJun 4, 01:00 UTC25m
2026-06-03 MPH9431 - Jun 3, 13:55 UTCJun 3, 23:55 UTC10h 0m

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

Mode-S 4844EF frequently asked

What is Mode-S code 4844EF?
4844EF is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-MPS.
Where is Mode-S 4844EF registered?
Mode-S code 4844EF is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4844EF broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4844EF, octal 22042357, decimal 4,736,239.
What flights does 4844EF operate?
Mode-S 4844EF has broadcast 20 distinct callsigns, including MPH9412, MPH9411, MPH9432, MPH9472, MPH9471.