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
- Flights observed
- 37
- Distinct callsigns
- 20
- Country
- NL
- Last broadcast
- 2h ago
Last known position
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 |
|---|---|---|---|
| MPH9472 | - | 4 | 2026-05-11 |
| MPH9471 | Martinair | 4 | 2026-05-11 |
| MPH9442 | Martinair | 4 | 2026-05-15 |
| MPH9441 | Martinair | 2 | 2026-05-14 |
| MPH9412 | Martinair | 2 | 2026-04-21 |
| MPH9411 | Martinair | 2 | 2026-04-20 |
| MPH8372 | Martinair | 2 | 2026-05-19 |
| MPH6162 | Martinair | 2 | 2026-05-17 |
| MPH6161 | Martinair | 2 | 2026-05-16 |
| MPH6132 | - | 2 | 2026-04-16 |
| MPH6122 | Martinair | 2 | 2026-04-29 |
| MPH9452 | Martinair | 1 | 2026-05-30 |
| MPH9451 | Martinair | 1 | 2026-05-29 |
| MPH9172 | Martinair | 1 | 2026-05-08 |
| MPH9171 | Martinair | 1 | 2026-04-30 |
| MPH8371 | Martinair | 1 | 2026-05-17 |
| MPH8322 | Martinair | 1 | 2026-05-13 |
| MPH8321 | Martinair | 1 | 2026-05-12 |
| MPH6131 | - | 1 | 2026-04-15 |
| MPH6121 | Martinair | 1 | 2026-04-28 |
Recent flights last 37
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | MPH9452 | HKG → DWC | May 30, 08:30 UTC | May 30, 08:45 UTC | 15m |
| 2026-05-29 | MPH9451 | AMS → HKG | May 29, 18:20 UTC | May 30, 05:45 UTC | 11h 25m |
| 2026-05-19 | MPH8372 | NBO → AMS | May 19, 01:35 UTC | May 19, 02:50 UTC | 1h 15m |
| 2026-05-18 | MPH8372 | NBO → AMS | May 18, 10:30 UTC | May 18, 11:00 UTC | 30m |
| 2026-05-17 | MPH8371 | AMS → JNB | May 17, 21:20 UTC | May 18, 07:35 UTC | 10h 15m |
| 2026-05-17 | MPH6162 | STN → AMS | May 17, 07:35 UTC | May 17, 15:31 UTC | 7h 55m |
| 2026-05-17 | MPH6162 | STN → AMS | May 17, 01:40 UTC | May 17, 04:55 UTC | 3h 15m |
| 2026-05-16 | MPH6161 | MIA → BOG | May 16, 20:05 UTC | May 16, 22:55 UTC | 2h 50m |
| 2026-05-16 | MPH6161 | MIA → BOG | May 16, 08:55 UTC | May 16, 18:10 UTC | 9h 15m |
| 2026-05-15 | MPH9442 | DWC → AMS | May 15, 17:15 UTC | May 15, 21:45 UTC | 4h 30m |
| 2026-05-15 | MPH9442 | DWC → AMS | May 15, 05:55 UTC | May 15, 06:10 UTC | 15m |
| 2026-05-14 | MPH9441 | AMS → AMS | May 14, 13:45 UTC | May 15, 01:15 UTC | 11h 30m |
| 2026-05-13 | MPH8322 | NBO → AMS | May 13, 10:25 UTC | May 14, 02:05 UTC | 15h 40m |
| 2026-05-12 | MPH8321 | AMS → AMS | May 12, 21:15 UTC | May 13, 07:30 UTC | 10h 15m |
| 2026-05-11 | MPH9472 | - | May 11, 16:25 UTC | May 11, 20:55 UTC | 4h 30m |
| 2026-05-11 | MPH9472 | - | May 11, 06:05 UTC | May 11, 06:20 UTC | 15m |
| 2026-05-11 | MPH9471 | AMS → DWC | May 11, 02:50 UTC | May 11, 03:35 UTC | 45m |
| 2026-05-10 | MPH9471 | AMS → DWC | May 10, 16:00 UTC | May 10, 19:54 UTC | 3h 55m |
| 2026-05-08 | MPH9172 | HHN → HHN | May 8, 21:00 UTC | May 8, 21:40 UTC | 40m |
| 2026-04-30 | MPH9171 | AMS → HHN | Apr 30, 09:40 UTC | Apr 30, 10:20 UTC | 40m |
| 2026-04-29 | MPH6122 | MIA → AMS | Apr 29, 07:50 UTC | Apr 29, 16:15 UTC | 8h 26m |
| 2026-04-28 | MPH6122 | MIA → AMS | Apr 28, 20:45 UTC | Apr 29, 05:55 UTC | 9h 10m |
| 2026-04-28 | MPH6121 | AMS → MIA | Apr 28, 09:00 UTC | Apr 28, 17:50 UTC | 8h 50m |
| 2026-04-24 | MPH9442 | DWC → AMS | Apr 24, 14:45 UTC | Apr 24, 19:35 UTC | 4h 50m |
| 2026-04-24 | MPH9442 | DWC → AMS | Apr 24, 04:05 UTC | Apr 24, 04:25 UTC | 20m |
| 2026-04-23 | MPH9441 | AMS → AMS | Apr 23, 11:30 UTC | Apr 23, 22:35 UTC | 11h 4m |
| 2026-04-21 | MPH9412 | DWC → AMS | Apr 21, 03:50 UTC | Apr 21, 19:00 UTC | 15h 10m |
| 2026-04-20 | MPH9412 | DWC → AMS | Apr 20, 21:25 UTC | Apr 21, 00:30 UTC | 3h 5m |
| 2026-04-20 | MPH9411 | DWC → HKG | Apr 20, 18:40 UTC | Apr 20, 19:05 UTC | 25m |
| 2026-04-20 | MPH9411 | DWC → HKG | Apr 20, 07:50 UTC | Apr 20, 17:55 UTC | 10h 5m |
| 2026-04-16 | MPH6132 | - | Apr 16, 21:14 UTC | Apr 16, 21:55 UTC | 40m |
| 2026-04-16 | MPH6132 | - | Apr 16, 20:35 UTC | Apr 16, 21:10 UTC | 35m |
| 2026-04-15 | MPH6131 | - | Apr 15, 11:15 UTC | Apr 15, 12:40 UTC | 1h 25m |
| 2026-04-13 | MPH9472 | - | Apr 13, 16:20 UTC | Apr 13, 17:35 UTC | 1h 15m |
| 2026-04-13 | MPH9472 | - | Apr 13, 06:05 UTC | Apr 13, 06:20 UTC | 15m |
| 2026-04-13 | MPH9471 | AMS → DWC | Apr 13, 02:50 UTC | Apr 13, 03:15 UTC | 25m |
| 2026-04-12 | MPH9471 | AMS → DWC | Apr 12, 17:15 UTC | Apr 12, 19:45 UTC | 2h 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-MPS page for operator, model, and routing details .