Apparatus

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sensors Mode-S transponder

4D23B6

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-NFT · ATR-72-600

Hex
4D23B6
Octal
23221666
Decimal
5,055,414
Country
MT
Tail
9H-NFT
Type
AT76
Broadcasting now · callsign ANE25DN · 17,975 ft
Flights observed
588
Distinct callsigns
20
Country
MT
Last broadcast
1h ago

Current position

4D23B6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D23B6 falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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
ANE2298 - 32 2026-07-13
ANE64RQ - 26 2026-07-14
ANE25DN - 25 2026-07-11
ANE2279 - 23 2026-07-13
ANE76YM - 21 2026-07-11
ANE93TM - 20 2026-07-13
ANE98PN Air Nostrum 18 2026-07-12
ANE87EF - 17 2026-07-12
ANE79GL - 17 2026-07-08
ANE63GR - 16 2026-07-07
ANE54TD - 16 2026-07-07
ANE42SD - 16 2026-07-12
ANE16CW - 16 2026-07-12
ANE05QQ Air Nostrum 16 2026-06-15
ANE66FN - 15 2026-07-07
ANE58VK Air Nostrum 15 2026-06-15
ANE37YV - 15 2026-06-14
ANE2275 - 15 2026-07-12
ANE2265 Air Nostrum 15 2026-07-12
ANE2261 - 15 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ANE64RQ - Jul 14, 05:20 UTCJul 14, 05:30 UTC10m
2026-07-13 ANE2279 - Jul 13, 20:10 UTCJul 13, 20:40 UTC30m
2026-07-13 ANE2298 - Jul 13, 18:00 UTCJul 13, 19:30 UTC1h 30m
2026-07-13 ANE90FJ - Jul 13, 14:35 UTCJul 13, 16:15 UTC1h 40m
2026-07-13 ANE38CM - Jul 13, 12:10 UTCJul 13, 13:10 UTC1h 0m
2026-07-13 ANE82DH - Jul 13, 10:10 UTCJul 13, 11:05 UTC55m
2026-07-13 ANE93TM - Jul 13, 07:50 UTCJul 13, 08:25 UTC35m
2026-07-13 ANE2383 - Jul 13, 05:40 UTCJul 13, 06:55 UTC1h 15m
2026-07-12 ANE23DQ - Jul 12, 20:15 UTCJul 12, 21:15 UTC1h 0m
2026-07-12 ANE98PN MLN → AGP Jul 12, 18:30 UTCJul 12, 19:01 UTC30m
2026-07-12 ANE87EF - Jul 12, 17:10 UTCJul 12, 17:45 UTC35m
2026-07-12 ANE2265 MLN → AGP Jul 12, 15:20 UTCJul 12, 16:01 UTC40m
2026-07-12 ANE16CW - Jul 12, 14:01 UTCJul 12, 14:35 UTC35m
2026-07-12 ANE2275 - Jul 12, 10:25 UTCJul 12, 11:01 UTC35m
2026-07-12 ANE42SD - Jul 12, 05:20 UTCJul 12, 05:45 UTC25m
2026-07-11 ANE37CL - Jul 11, 18:40 UTCJul 11, 19:05 UTC25m
2026-07-11 ANE92MX BCN → MLN Jul 11, 15:45 UTCJul 11, 17:55 UTC2h 10m
2026-07-11 ANE90XB MLN → BCN Jul 11, 12:45 UTCJul 11, 14:25 UTC1h 40m
2026-07-11 ANE76YM - Jul 11, 10:25 UTCJul 11, 11:55 UTC1h 30m
2026-07-11 ANE25DN - Jul 11, 07:00 UTCJul 11, 08:25 UTC1h 25m
2026-07-11 ANE64RQ - Jul 11, 05:31 UTCJul 11, 06:05 UTC35m
2026-07-10 MDO131 - Jul 10, 16:40 UTCJul 10, 18:00 UTC1h 20m
2026-07-09 ANE23DQ - Jul 9, 20:35 UTCJul 9, 21:40 UTC1h 5m
2026-07-09 ANE61JN - Jul 9, 17:50 UTCJul 9, 18:20 UTC30m
2026-07-09 ANE96KM - Jul 9, 15:35 UTCJul 9, 17:05 UTC1h 30m
2026-07-09 ANE25DN - Jul 9, 06:50 UTCJul 9, 08:15 UTC1h 25m
2026-07-09 ANE64RQ - Jul 9, 05:30 UTCJul 9, 06:05 UTC35m
2026-07-08 ANE2298 MAD → MLN Jul 8, 17:55 UTCJul 8, 20:30 UTC2h 35m
2026-07-08 ANE79GL - Jul 8, 13:05 UTCJul 8, 14:50 UTC1h 45m
2026-07-08 ANE18TA - Jul 8, 11:25 UTCJul 8, 12:20 UTC55m
2026-07-08 ANE2019 - Jul 8, 09:30 UTCJul 8, 10:20 UTC50m
2026-07-08 ANE93TM - Jul 8, 07:55 UTCJul 8, 08:30 UTC35m
2026-07-08 ANE2383 - Jul 8, 05:30 UTCJul 8, 06:45 UTC1h 15m
2026-07-07 ANE23DQ - Jul 7, 20:20 UTCJul 7, 21:25 UTC1h 5m
2026-07-07 ANE98PN MLN → AGP Jul 7, 18:25 UTCJul 7, 19:05 UTC40m
2026-07-07 ANE87EF - Jul 7, 17:20 UTCJul 7, 17:50 UTC30m
2026-07-07 ANE2265 MLN → AGP Jul 7, 15:10 UTCJul 7, 15:55 UTC45m
2026-07-07 ANE16CW - Jul 7, 13:55 UTCJul 7, 14:25 UTC30m
2026-07-07 ANE54TD - Jul 7, 11:30 UTCJul 7, 12:10 UTC40m
2026-07-07 ANE66FN - Jul 7, 10:20 UTCJul 7, 10:50 UTC30m
2026-07-07 ANE2263 - Jul 7, 08:20 UTCJul 7, 09:00 UTC40m
2026-07-07 ANE63GR - Jul 7, 06:55 UTCJul 7, 07:30 UTC35m
2026-07-07 ANE2261 - Jul 7, 05:30 UTCJul 7, 06:00 UTC30m
2026-07-06 ANE37RB - Jul 6, 19:15 UTCJul 6, 19:45 UTC30m
2026-07-06 ANE2265 MLN → AGP Jul 6, 15:30 UTCJul 6, 16:15 UTC45m
2026-07-06 ANE31EK - Jul 6, 14:15 UTCJul 6, 14:50 UTC35m
2026-07-06 ANE91WJ - Jul 6, 12:35 UTCJul 6, 13:05 UTC30m
2026-07-06 ANE29LW - Jul 6, 10:25 UTCJul 6, 11:50 UTC1h 25m
2026-07-06 ANE25DN - Jul 6, 06:50 UTCJul 6, 08:15 UTC1h 25m
2026-07-06 ANE64RQ - Jul 6, 05:30 UTCJul 6, 06:00 UTC30m

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 9H-NFT page for operator, model, and routing details .

Mode-S 4D23B6 frequently asked

What is Mode-S code 4D23B6?
4D23B6 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-NFT.
Where is Mode-S 4D23B6 registered?
Mode-S code 4D23B6 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D23B6 broadcasting right now?
Yes. Mode-S 4D23B6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D23B6, octal 23221666, decimal 5,055,414.
What flights does 4D23B6 operate?
Mode-S 4D23B6 has broadcast 20 distinct callsigns, including ANE2298, ANE64RQ, ANE25DN, ANE2279, ANE76YM.