sensors Mode-S transponder

4D210B

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-VJY · BOMBARDIER BD-700 Global 6000/6500

Hex
4D210B
Octal
23220413
Decimal
5,054,731
Country
MT
Tail
9H-VJY
Type
GLEX
Transponder active on ground
Flights observed
46
Distinct callsigns
5
Country
MT
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4D210B.

Country allocation

The ICAO 24-bit address 4D210B 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
VJT904 - 39 2026-05-27
VJT110 - 3 2026-04-22
VJT128 - 2 2026-04-19
VJT337J - 1 2026-05-21
VJT281 - 1 2026-04-12

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-27 VJT904 - May 27, 05:45 UTCMay 27, 05:55 UTC10m
2026-05-26 VJT904 - May 26, 19:55 UTCMay 27, 05:09 UTC9h 15m
2026-05-26 VJT904 - May 26, 08:54 UTCMay 26, 16:35 UTC7h 40m
2026-05-26 VJT904 - May 26, 02:04 UTCMay 26, 06:25 UTC4h 20m
2026-05-25 VJT904 - May 25, 18:25 UTCMay 26, 01:00 UTC6h 35m
2026-05-24 VJT904 EDI → SCF May 24, 07:50 UTCMay 24, 17:20 UTC9h 30m
2026-05-23 VJT904 - May 23, 01:00 UTCMay 23, 10:30 UTC9h 29m
2026-05-22 VJT904 SFO → SJC May 22, 22:55 UTCMay 22, 23:15 UTC20m
2026-05-21 VJT904 - May 21, 18:35 UTCMay 22, 05:35 UTC11h 0m
2026-05-21 VJT904 - May 21, 12:50 UTCMay 21, 16:10 UTC3h 20m
2026-05-21 VJT337J - May 21, 08:35 UTCMay 21, 11:25 UTC2h 50m
2026-05-20 VJT904 GVA → LBG May 20, 19:20 UTCMay 20, 20:10 UTC50m
2026-05-20 VJT904 SJC → GVA May 20, 03:25 UTCMay 20, 13:45 UTC10h 21m
2026-05-18 VJT904 - May 18, 12:35 UTCMay 18, 23:05 UTC10h 29m
2026-05-12 VJT904 - May 12, 05:20 UTCMay 12, 06:35 UTC1h 15m
2026-05-11 VJT904 YUL → TEB May 11, 19:35 UTCMay 11, 20:40 UTC1h 5m
2026-05-11 VJT904 - May 11, 13:30 UTCMay 11, 18:20 UTC4h 50m
2026-05-10 VJT904 TEB → RKV May 10, 16:10 UTCMay 10, 20:50 UTC4h 40m
2026-05-09 VJT904 - May 9, 23:09 UTCMay 10, 01:50 UTC2h 40m
2026-05-08 VJT904 - May 8, 17:00 UTCMay 8, 21:05 UTC4h 5m
2026-04-30 VJT904 - Apr 30, 15:25 UTCApr 30, 20:30 UTC5h 5m
2026-04-29 VJT904 - Apr 29, 10:30 UTCApr 29, 11:25 UTC55m
2026-04-28 VJT904 BMA → LBG Apr 28, 07:35 UTCApr 28, 09:40 UTC2h 5m
2026-04-27 VJT904 - Apr 27, 04:45 UTCApr 27, 12:50 UTC8h 5m
2026-04-26 VJT904 - Apr 26, 12:50 UTCApr 26, 13:05 UTC15m
2026-04-26 VJT904 - Apr 26, 10:30 UTCApr 26, 11:30 UTC1h 0m
2026-04-22 VJT904 - Apr 22, 18:10 UTCApr 22, 19:20 UTC1h 10m
2026-04-22 VJT110 - Apr 22, 16:10 UTCApr 22, 16:30 UTC20m
2026-04-22 VJT110 - Apr 22, 14:00 UTCApr 22, 14:15 UTC15m
2026-04-22 VJT110 - Apr 22, 09:05 UTCApr 22, 09:30 UTC25m
2026-04-19 VJT128 - Apr 19, 17:05 UTCApr 19, 18:05 UTC1h 0m
2026-04-18 VJT128 - Apr 18, 11:45 UTCApr 18, 18:40 UTC6h 55m
2026-04-18 VJT904 - Apr 18, 08:15 UTCApr 18, 08:40 UTC25m
2026-04-17 VJT904 - Apr 17, 05:20 UTCApr 17, 05:40 UTC20m
2026-04-17 VJT904 - Apr 17, 04:25 UTCApr 17, 05:15 UTC51m
2026-04-16 VJT904 - Apr 16, 21:34 UTCApr 16, 22:20 UTC45m
2026-04-16 VJT904 - Apr 16, 05:09 UTCApr 16, 06:05 UTC55m
2026-04-16 VJT904 - Apr 16, 03:49 UTCApr 16, 05:05 UTC1h 15m
2026-04-15 VJT904 - Apr 15, 23:10 UTCApr 16, 01:05 UTC1h 55m
2026-04-15 VJT904 - Apr 15, 17:55 UTCApr 15, 19:00 UTC1h 5m
2026-04-13 VJT904 - Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 VJT904 FCO → NCE Apr 13, 17:15 UTCApr 13, 18:00 UTC45m
2026-04-13 VJT904 GVA → CIA Apr 13, 14:45 UTCApr 13, 15:55 UTC1h 10m
2026-04-13 VJT904 - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m
2026-04-13 VJT904 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-12 VJT281 - Apr 12, 17:15 UTCApr 12, 19:00 UTC1h 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-VJY page for operator, model, and routing details .

Mode-S 4D210B frequently asked

What is Mode-S code 4D210B?
4D210B is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VJY.
Where is Mode-S 4D210B registered?
Mode-S code 4D210B is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D210B broadcasting right now?
Mode-S 4D210B is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D210B, octal 23220413, decimal 5,054,731.
What flights does 4D210B operate?
Mode-S 4D210B has broadcast 5 distinct callsigns, including VJT904, VJT110, VJT128, VJT337J, VJT281.