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 ANE59AM · 21,000 ft
Flights observed
666
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 21:10 UTC

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 Air Nostrum 33 2026-07-26
ANE64RQ Air Nostrum 29 2026-07-25
ANE25DN Air Nostrum 29 2026-07-25
ANE76YM - 25 2026-07-25
ANE2279 Air Nostrum 24 2026-07-26
ANE98PN Air Nostrum 22 2026-07-24
ANE93TM - 21 2026-07-16
ANE87EF Air Nostrum 21 2026-07-24
ANE16CW - 20 2026-07-24
ANE54TD Air Nostrum 19 2026-07-24
ANE2265 Air Nostrum 19 2026-07-24
ANE63GR - 18 2026-07-20
ANE42SD Air Nostrum 18 2026-07-19
ANE2261 Air Nostrum 18 2026-07-26
ANE79GL - 17 2026-07-08
ANE05QQ - 17 2026-07-16
ANE66FN - 16 2026-07-15
ANE58VK - 16 2026-07-16
ANE37YV - 16 2026-07-16
ANE37CL - 16 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANE2279 MLN → AGP Jul 26, 20:30 UTCJul 26, 21:10 UTC40m
2026-07-26 ANE2298 MAD → MLN Jul 26, 18:35 UTCJul 26, 20:00 UTC1h 25m
2026-07-26 ANE90FJ - Jul 26, 15:50 UTCJul 26, 17:20 UTC1h 30m
2026-07-26 ANE59AM PMI → MLN Jul 26, 12:55 UTCJul 26, 14:50 UTC1h 55m
2026-07-26 ANE39FP MLN → PMI Jul 26, 10:10 UTCJul 26, 11:50 UTC1h 40m
2026-07-26 ANA63GR - Jul 26, 07:15 UTCJul 26, 07:50 UTC35m
2026-07-26 ANE2261 PMI → PAD Jul 26, 05:45 UTCJul 26, 06:15 UTC30m
2026-07-25 ANE2283 - Jul 25, 16:00 UTCJul 25, 18:10 UTC2h 10m
2026-07-25 ANE2282 - Jul 25, 12:40 UTCJul 25, 14:55 UTC2h 15m
2026-07-25 ANE76YM - Jul 25, 10:25 UTCJul 25, 11:55 UTC1h 30m
2026-07-25 ANE25DN MLN → MAD Jul 25, 06:50 UTCJul 25, 08:15 UTC1h 25m
2026-07-25 ANE64RQ AGP → MLN Jul 25, 05:30 UTCJul 25, 06:05 UTC35m
2026-07-24 ANE98PN MLN → AGP Jul 24, 18:35 UTCJul 24, 19:05 UTC30m
2026-07-24 ANE87EF AGP → MLN Jul 24, 17:15 UTCJul 24, 17:45 UTC30m
2026-07-24 ANE2265 MLN → AGP Jul 24, 15:25 UTCJul 24, 15:45 UTC20m
2026-07-24 ANE16CW - Jul 24, 13:45 UTCJul 24, 14:10 UTC25m
2026-07-24 ANE54TD MLN → AGP Jul 24, 12:10 UTCJul 24, 12:40 UTC30m
2026-07-24 MDO131 VLC → AGP Jul 24, 09:50 UTCJul 24, 11:10 UTC1h 20m
2026-07-21 ANE76YM MAD → MAD Jul 21, 11:25 UTCJul 21, 11:45 UTC20m
2026-07-21 ANE25DN - Jul 21, 08:50 UTCJul 21, 10:05 UTC1h 15m
2026-07-21 ANE64RQ AGP → MLN Jul 21, 07:40 UTCJul 21, 08:10 UTC30m
2026-07-21 ANE2383 VLC → AGP Jul 21, 05:30 UTCJul 21, 06:50 UTC1h 20m
2026-07-20 ANE23DQ - Jul 20, 20:55 UTCJul 20, 22:05 UTC1h 10m
2026-07-20 ANE98PN MLN → AGP Jul 20, 19:15 UTCJul 20, 19:55 UTC40m
2026-07-20 ANE87EF - Jul 20, 17:55 UTCJul 20, 18:30 UTC35m
2026-07-20 ANE2265 MLN → AGP Jul 20, 15:50 UTCJul 20, 16:30 UTC40m
2026-07-20 ANE16CW - Jul 20, 13:45 UTCJul 20, 14:20 UTC35m
2026-07-20 ANE2187 - Jul 20, 12:10 UTCJul 20, 12:35 UTC25m
2026-07-20 ANE2186 - Jul 20, 10:40 UTCJul 20, 11:10 UTC30m
2026-07-20 ANE2263 MLN → AGP Jul 20, 08:40 UTCJul 20, 09:20 UTC40m
2026-07-20 ANE63GR - Jul 20, 07:10 UTCJul 20, 07:50 UTC40m
2026-07-20 ANE2261 - Jul 20, 05:35 UTCJul 20, 06:05 UTC30m
2026-07-19 ANE37RB - Jul 19, 19:20 UTCJul 19, 19:55 UTC35m
2026-07-19 ANE61JN - Jul 19, 16:35 UTCJul 19, 17:15 UTC40m
2026-07-19 ANE38CM - Jul 19, 14:50 UTCJul 19, 15:50 UTC1h 0m
2026-07-19 ANE82DH - Jul 19, 13:00 UTCJul 19, 13:55 UTC55m
2026-07-19 ANE31EK - Jul 19, 11:30 UTCJul 19, 12:05 UTC35m
2026-07-19 ANE91WJ - Jul 19, 09:50 UTCJul 19, 10:25 UTC35m
2026-07-19 ANE42SD LEI → MLN Jul 19, 05:35 UTCJul 19, 06:05 UTC30m
2026-07-18 ANE37CL - Jul 18, 18:40 UTCJul 18, 19:10 UTC30m
2026-07-18 MDO131 VLC → AGP Jul 18, 16:35 UTCJul 18, 17:05 UTC30m
2026-07-18 ANE54TD - Jul 18, 14:40 UTCJul 18, 15:20 UTC40m
2026-07-18 ANE76YM - Jul 18, 10:40 UTCJul 18, 12:10 UTC1h 30m
2026-07-18 ANE25DN - Jul 18, 06:50 UTCJul 18, 08:10 UTC1h 20m
2026-07-18 ANE64RQ - Jul 18, 05:30 UTCJul 18, 06:05 UTC35m
2026-07-17 ANE98PN MLN → AGP Jul 17, 18:40 UTCJul 17, 19:20 UTC40m
2026-07-17 ANE87EF - Jul 17, 17:20 UTCJul 17, 17:50 UTC30m
2026-07-17 ANE2265 MLN → AGP Jul 17, 15:15 UTCJul 17, 15:55 UTC40m
2026-07-17 ANE16CW - Jul 17, 13:50 UTCJul 17, 14:20 UTC30m
2026-07-17 ANE2275 - Jul 17, 10:35 UTCJul 17, 11:10 UTC35m

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, ANE76YM, ANE2279.