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sensors Mode-S transponder

4D2153

ICAO 24-bit transponder address · allocated to Malta

Hex
4D2153
Octal
23220523
Decimal
5,054,803
Country
MT
Broadcasting now · callsign CXI9V · 36,000 ft
Flights observed
287
Distinct callsigns
20
Country
MT
Last broadcast
42m ago

Current position

4D2153 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D2153 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
CXI9V Shanxi Airlines 29 2026-07-25
CXI2W Shanxi Airlines 19 2026-07-20
CXI1P Shanxi Airlines 19 2026-07-19
CXI33MY Shanxi Airlines 13 2026-07-21
CXI2ZD - 13 2026-07-21
CAI18XF Corendon Airlines 10 2026-07-25
CXI84VA - 9 2026-07-25
CXI76XG - 9 2026-07-19
CXI4G - 9 2026-07-24
CAI1Y Corendon Airlines 9 2026-07-25
CXI3B - 8 2026-07-14
CXI7DD - 7 2026-07-14
CXI3SY - 7 2026-07-02
CXI3J - 7 2026-07-24
CXI9P Shanxi Airlines 6 2026-06-24
CXI6MY Shanxi Airlines 6 2026-06-29
CXI5QL Shanxi Airlines 6 2026-06-27
CXI3Z Shanxi Airlines 6 2026-06-29
CXI24HM - 6 2026-07-23
CXI11NX - 6 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CXI9V HER → NUE Jul 25, 15:45 UTCJul 25, 16:45 UTC1h 0m
2026-07-25 CXI84VA - Jul 25, 11:35 UTCJul 25, 13:50 UTC2h 15m
2026-07-25 CAI18XF AYT → NUE Jul 25, 07:20 UTCJul 25, 10:15 UTC2h 55m
2026-07-25 CAI1Y AYT → FMO Jul 25, 02:50 UTCJul 25, 05:30 UTC2h 40m
2026-07-24 CXI4G - Jul 24, 11:45 UTCJul 24, 21:25 UTC9h 40m
2026-07-24 CXI9V HER → NUE Jul 24, 07:00 UTCJul 24, 09:35 UTC2h 35m
2026-07-24 CXI3J - Jul 24, 02:55 UTCJul 24, 05:05 UTC2h 10m
2026-07-23 CXI24HM NUE → NUE Jul 23, 12:50 UTCJul 23, 22:05 UTC9h 15m
2026-07-23 CAI18XF - Jul 23, 07:15 UTCJul 23, 10:25 UTC3h 10m
2026-07-23 CAI1Y AYT → FMO Jul 23, 03:00 UTCJul 23, 05:50 UTC2h 50m
2026-07-22 CXI1Y DUS → DUS Jul 22, 22:10 UTCJul 23, 00:00 UTC1h 50m
2026-07-22 CXI4J HAJ → LPA Jul 22, 19:10 UTCJul 22, 20:55 UTC1h 45m
2026-07-22 CAI18XF - Jul 22, 13:00 UTCJul 22, 16:00 UTC3h 0m
2026-07-21 CAI8XA NUE → NUE Jul 21, 21:05 UTCJul 22, 04:35 UTC7h 30m
2026-07-21 CXI84MY NUE → LPA Jul 21, 09:40 UTCJul 21, 19:30 UTC9h 50m
2026-07-21 CXI2ZD - Jul 21, 06:05 UTCJul 21, 07:50 UTC1h 45m
2026-07-21 CXI33MY NUE → CFU Jul 21, 02:55 UTCJul 21, 04:25 UTC1h 30m
2026-07-20 CXI5C HAJ → ACE Jul 20, 16:40 UTCJul 20, 20:10 UTC3h 30m
2026-07-20 CXI2W DUS → RHO Jul 20, 11:00 UTCJul 20, 15:05 UTC4h 5m
2026-07-20 CXI9V - Jul 20, 06:50 UTCJul 20, 09:20 UTC2h 30m
2026-07-20 CXI1KF NUE → HER Jul 20, 03:00 UTCJul 20, 05:15 UTC2h 15m
2026-07-19 CXI4G NUE → NUE Jul 19, 12:15 UTCJul 19, 21:50 UTC9h 35m
2026-07-19 CXI76XG RHO → NUE Jul 19, 06:05 UTCJul 19, 08:50 UTC2h 45m
2026-07-19 CXI1P NUE → RHO Jul 19, 02:05 UTCJul 19, 04:40 UTC2h 35m
2026-07-18 CXI9V - Jul 18, 15:35 UTCJul 18, 18:10 UTC2h 35m
2026-07-18 CXI84VA NUE → HER Jul 18, 11:35 UTCJul 18, 14:05 UTC2h 30m
2026-07-18 CAI18XF - Jul 18, 06:55 UTCJul 18, 09:55 UTC3h 0m
2026-07-18 CAI1Y AYT → FMO Jul 18, 02:45 UTCJul 18, 05:35 UTC2h 51m
2026-07-17 CXI4G NUE → NUE Jul 17, 11:25 UTCJul 17, 21:05 UTC9h 40m
2026-07-17 CXI9V - Jul 17, 07:00 UTCJul 17, 09:40 UTC2h 40m
2026-07-17 CXI3J - Jul 17, 03:20 UTCJul 17, 05:35 UTC2h 15m
2026-07-16 CXI24HM - Jul 16, 18:55 UTCJul 16, 22:35 UTC3h 40m
2026-07-16 CXI2W - Jul 16, 13:05 UTCJul 16, 17:20 UTC4h 15m
2026-07-16 CAI18XF - Jul 16, 07:30 UTCJul 16, 10:29 UTC3h 0m
2026-07-16 CAI1Y NUE → AYT Jul 16, 03:05 UTCJul 16, 05:55 UTC2h 50m
2026-07-15 CXI1Y DUS → DUS Jul 15, 23:35 UTCJul 16, 01:20 UTC1h 45m
2026-07-15 CXI4J HAJ → LPA Jul 15, 19:10 UTCJul 15, 21:30 UTC2h 20m
2026-07-15 CAI18XF - Jul 15, 12:55 UTCJul 15, 16:05 UTC3h 10m
2026-07-15 CAI1Y NUE → AYT Jul 15, 08:40 UTCJul 15, 11:25 UTC2h 45m
2026-07-14 CXI7QC LPA → NUE Jul 14, 18:25 UTCJul 14, 22:05 UTC3h 40m
2026-07-14 CXI84MY - Jul 14, 12:05 UTCJul 14, 16:20 UTC4h 15m
2026-07-14 CXI7DD - Jul 14, 08:15 UTCJul 14, 10:00 UTC1h 45m
2026-07-14 CXI3B - Jul 14, 05:05 UTCJul 14, 07:05 UTC2h 0m
2026-07-13 CXI5C HAJ → ACE Jul 13, 16:55 UTCJul 13, 20:25 UTC3h 30m
2026-07-13 CXI2W - Jul 13, 11:10 UTCJul 13, 15:20 UTC4h 10m
2026-07-13 CXI9V HER → NUE Jul 13, 07:05 UTCJul 13, 09:40 UTC2h 35m
2026-07-13 CXI1KF - Jul 13, 03:10 UTCJul 13, 05:25 UTC2h 15m
2026-07-12 CXI4G NUE → NUE Jul 12, 12:20 UTCJul 12, 21:35 UTC9h 15m
2026-07-12 CXI76XG RHO → NUE Jul 12, 06:10 UTCJul 12, 08:55 UTC2h 45m
2026-07-12 CXI1P NUE → RHO Jul 12, 02:10 UTCJul 12, 04:45 UTC2h 35m

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.

Mode-S 4D2153 frequently asked

What is Mode-S code 4D2153?
4D2153 is an ICAO 24-bit transponder address. Allocated to Malta.
Where is Mode-S 4D2153 registered?
Mode-S code 4D2153 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2153 broadcasting right now?
Yes. Mode-S 4D2153 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2153, octal 23220523, decimal 5,054,803.
What flights does 4D2153 operate?
Mode-S 4D2153 has broadcast 20 distinct callsigns, including CXI9V, CXI2W, CXI1P, CXI33MY, CXI2ZD.