sensors Mode-S transponder

4D217A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-ILB · BOMBARDIER Regional Jet CRJ-200

Hex
4D217A
Octal
23220572
Decimal
5,054,842
Country
MT
Tail
9H-ILB
Type
CRJ2
No current signal · last broadcast Jul 25, 23:25 UTC
Flights observed
189
Distinct callsigns
5
Country
MT
Last broadcast
Jul 25, 23:25 UTC

Last known position

Most recent position reported by Mode-S 4D217A.

Country allocation

The ICAO 24-bit address 4D217A 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 5 distinct

Callsign Airline Flights Last seen
VJT645 - 183 2026-07-25
VJT908W - 2 2026-07-14
VJT470Q - 2 2026-06-19
VJT324V - 1 2026-04-24
VJT1 - 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 VJT645 NCE → TRN Jul 25, 22:55 UTCJul 25, 23:20 UTC25m
2026-07-25 VJT645 - Jul 25, 20:20 UTCJul 25, 22:00 UTC1h 40m
2026-07-25 VJT645 - Jul 25, 17:10 UTCJul 25, 18:30 UTC1h 20m
2026-07-25 VJT645 - Jul 25, 15:00 UTCJul 25, 16:10 UTC1h 10m
2026-07-23 VJT645 - Jul 23, 16:35 UTCJul 23, 17:55 UTC1h 20m
2026-07-23 VJT645 - Jul 23, 13:40 UTCJul 23, 14:50 UTC1h 10m
2026-07-22 VJT645 - Jul 22, 15:50 UTCJul 22, 17:00 UTC1h 10m
2026-07-22 VJT645 - Jul 22, 13:45 UTCJul 22, 14:30 UTC45m
2026-07-21 VJT645 - Jul 21, 17:25 UTCJul 21, 18:00 UTC35m
2026-07-21 VJT645 - Jul 21, 14:45 UTCJul 21, 15:50 UTC1h 5m
2026-07-21 VJT645 - Jul 21, 12:40 UTCJul 21, 13:20 UTC40m
2026-07-21 VJT645 - Jul 21, 10:15 UTCJul 21, 11:35 UTC1h 20m
2026-07-20 VJT645 - Jul 20, 18:25 UTCJul 20, 18:55 UTC30m
2026-07-20 VJT645 - Jul 20, 15:10 UTCJul 20, 17:20 UTC2h 10m
2026-07-20 VJT645 - Jul 20, 11:40 UTCJul 20, 13:20 UTC1h 40m
2026-07-19 VJT645 - Jul 19, 18:55 UTCJul 19, 20:40 UTC1h 45m
2026-07-19 VJT645 - Jul 19, 13:15 UTCJul 19, 14:05 UTC50m
2026-07-19 VJT645 - Jul 19, 10:45 UTCJul 19, 11:40 UTC55m
2026-07-18 VJT645 - Jul 18, 15:40 UTCJul 18, 16:25 UTC45m
2026-07-18 VJT645 - Jul 18, 13:50 UTCJul 18, 14:35 UTC45m
2026-07-18 VJT645 - Jul 18, 11:55 UTCJul 18, 12:30 UTC35m
2026-07-18 VJT645 TRN → NCE Jul 18, 09:25 UTCJul 18, 10:00 UTC35m
2026-07-17 VJT645 CEQ → TRN Jul 17, 18:34 UTCJul 17, 19:09 UTC35m
2026-07-17 VJT645 - Jul 17, 16:44 UTCJul 17, 18:00 UTC1h 15m
2026-07-15 VJT645 - Jul 15, 15:25 UTCJul 15, 17:40 UTC2h 15m
2026-07-15 VJT645 MLA → DUS Jul 15, 11:00 UTCJul 15, 13:50 UTC2h 50m
2026-07-14 VJT908W - Jul 14, 14:10 UTCJul 14, 16:35 UTC2h 25m
2026-07-13 VJT908W MLA → LBG Jul 13, 12:50 UTCJul 13, 15:35 UTC2h 45m
2026-07-13 VJT645 SOF → MLA Jul 13, 09:30 UTCJul 13, 11:10 UTC1h 40m
2026-07-12 VJT645 - Jul 12, 15:35 UTCJul 12, 16:50 UTC1h 15m
2026-07-12 VJT645 - Jul 12, 11:15 UTCJul 12, 12:10 UTC55m
2026-07-12 VJT645 - Jul 12, 09:25 UTCJul 12, 10:01 UTC35m
2026-07-12 VJT645 - Jul 12, 06:40 UTCJul 12, 07:25 UTC45m
2026-07-10 VJT645 - Jul 10, 10:05 UTCJul 10, 11:00 UTC55m
2026-07-10 VJT645 - Jul 10, 07:40 UTCJul 10, 08:25 UTC45m
2026-07-09 VJT645 TRN → CIA Jul 9, 16:10 UTCJul 9, 17:05 UTC55m
2026-07-08 VJT645 MXP → TRN Jul 8, 18:50 UTCJul 8, 19:10 UTC20m
2026-07-08 VJT645 - Jul 8, 14:55 UTCJul 8, 17:05 UTC2h 10m
2026-07-08 VJT645 - Jul 8, 10:40 UTCJul 8, 13:00 UTC2h 20m
2026-07-08 VJT645 CIA → LIN Jul 8, 08:15 UTCJul 8, 09:10 UTC55m
2026-07-07 VJT645 ZRH → CIA Jul 7, 15:15 UTCJul 7, 16:20 UTC1h 5m
2026-07-06 VJT645 BCN → ZRH Jul 6, 14:20 UTCJul 6, 15:55 UTC1h 35m
2026-07-06 VJT645 PMI → BCN Jul 6, 11:50 UTCJul 6, 12:35 UTC45m
2026-07-06 VJT645 - Jul 6, 08:50 UTCJul 6, 10:20 UTC1h 30m
2026-07-05 VJT645 ATH → LBG Jul 5, 15:20 UTCJul 5, 18:35 UTC3h 15m
2026-07-05 VJT645 - Jul 5, 10:15 UTCJul 5, 13:00 UTC2h 45m
2026-07-05 VJT645 - Jul 5, 07:15 UTCJul 5, 08:30 UTC1h 15m
2026-07-03 VJT645 - Jul 3, 14:55 UTCJul 3, 16:25 UTC1h 30m
2026-07-03 VJT645 IBZ → FAB Jul 3, 10:40 UTCJul 3, 12:50 UTC2h 10m
2026-07-03 VJT645 - Jul 3, 06:10 UTCJul 3, 08:55 UTC2h 45m

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

Mode-S 4D217A frequently asked

What is Mode-S code 4D217A?
4D217A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-ILB.
Where is Mode-S 4D217A registered?
Mode-S code 4D217A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D217A broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 23:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D217A, octal 23220572, decimal 5,054,842.
What flights does 4D217A operate?
Mode-S 4D217A has broadcast 5 distinct callsigns, including VJT645, VJT908W, VJT470Q, VJT324V, VJT1.