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sensors Mode-S transponder

4BB573

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-MKS · BOEING 737 MAX 8

Hex
4BB573
Octal
22732563
Decimal
4,961,651
Country
TR
Tail
TC-MKS
Type
B38M
Broadcasting now · callsign CAI1Y · 37,000 ft
Flights observed
167
Distinct callsigns
20
Country
TR
Last broadcast
5h ago

Current position

4BB573 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB573 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 26 2026-05-29
CXI2W Shanxi Airlines 16 2026-05-25
CXI3J - 9 2026-05-29
CXI96TY Shanxi Airlines 8 2026-05-22
CXI1KF Shanxi Airlines 8 2026-05-25
CXI84VA Shanxi Airlines 7 2026-05-16
CXI84MY Shanxi Airlines 7 2026-05-26
CXI33MY Shanxi Airlines 7 2026-05-26
CXI8MM - 6 2026-05-27
CXI2ZD Shanxi Airlines 6 2026-05-26
CAI1Y Corendon Airlines 6 2026-05-27
CAI18XF Corendon Airlines 6 2026-05-27
CXI7QC Shanxi Airlines 5 2026-05-26
CXI84WD Shanxi Airlines 4 2026-05-29
CXI5C Shanxi Airlines 4 2026-05-25
CXI7J Shanxi Airlines 3 2026-05-28
CXI7DD Shanxi Airlines 3 2026-05-05
CXI558 Shanxi Airlines 3 2026-05-28
CXI557 Shanxi Airlines 3 2026-05-28
CXI4J Shanxi Airlines 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CXI84WD LPA → NUE May 29, 12:20 UTCMay 29, 22:30 UTC10h 10m
2026-05-29 CXI9V HER → NUE May 29, 06:35 UTCMay 29, 09:10 UTC2h 35m
2026-05-29 CXI3J - May 29, 02:40 UTCMay 29, 04:55 UTC2h 15m
2026-05-28 CXI7J FUE → NUE May 28, 16:05 UTCMay 28, 18:50 UTC2h 45m
2026-05-28 CXI26LQ - May 28, 12:10 UTCMay 28, 14:40 UTC2h 30m
2026-05-28 CXI558 PMI → NUE May 28, 08:10 UTCMay 28, 10:05 UTC1h 55m
2026-05-28 CXI557 NUE → PMI May 28, 05:05 UTCMay 28, 06:50 UTC1h 45m
2026-05-27 CXI8MM NUE → NUE May 27, 12:15 UTCMay 27, 22:05 UTC9h 50m
2026-05-27 CAI18XF AYT → NUE May 27, 07:20 UTCMay 27, 10:20 UTC3h 0m
2026-05-27 CAI1Y AYT → FMO May 27, 03:09 UTCMay 27, 05:59 UTC2h 50m
2026-05-26 CXI7QC LPA → NUE May 26, 18:05 UTCMay 26, 22:09 UTC4h 5m
2026-05-26 CXI84MY NUE → LPA May 26, 12:20 UTCMay 26, 16:15 UTC3h 55m
2026-05-26 CXI2ZD CFU → NUE May 26, 08:15 UTCMay 26, 09:59 UTC1h 45m
2026-05-26 CXI33MY NUE → CFU May 26, 05:00 UTCMay 26, 06:34 UTC1h 35m
2026-05-25 CXI5C HAJ → ACE May 25, 17:30 UTCMay 25, 20:34 UTC3h 4m
2026-05-25 CXI2W DUS → RHO May 25, 11:15 UTCMay 25, 15:15 UTC4h 0m
2026-05-25 CXI9V HER → NUE May 25, 07:10 UTCMay 25, 09:40 UTC2h 30m
2026-05-25 CXI1KF NUE → HER May 25, 03:05 UTCMay 25, 05:35 UTC2h 30m
2026-05-24 CXI8MM - May 24, 12:25 UTCMay 24, 21:45 UTC9h 20m
2026-05-24 CAI18XF AYT → NUE May 24, 07:40 UTCMay 24, 10:35 UTC2h 55m
2026-05-24 CAI1Y AYT → FMO May 24, 03:05 UTCMay 24, 05:50 UTC2h 45m
2026-05-23 CXI8MM NUE → NUE May 23, 12:15 UTCMay 23, 22:05 UTC9h 50m
2026-05-23 CAI18XF AYT → NUE May 23, 07:55 UTCMay 23, 10:50 UTC2h 55m
2026-05-23 CAI1Y AYT → FMO May 23, 03:10 UTCMay 23, 06:00 UTC2h 50m
2026-05-22 CXI96TY NUE → LPA May 22, 12:25 UTCMay 22, 22:10 UTC9h 45m
2026-05-22 CXI9V HER → NUE May 22, 05:40 UTCMay 22, 08:15 UTC2h 35m
2026-05-22 CXI3J - May 22, 01:25 UTCMay 22, 03:45 UTC2h 20m
2026-05-21 CXI7J FUE → NUE May 21, 15:50 UTCMay 21, 18:20 UTC2h 30m
2026-05-21 CXI26LQ NUE → KGS May 21, 12:05 UTCMay 21, 14:40 UTC2h 35m
2026-05-21 CXI558 PMI → NUE May 21, 08:45 UTCMay 21, 10:50 UTC2h 5m
2026-05-21 CXI557 NUE → PMI May 21, 05:50 UTCMay 21, 07:25 UTC1h 35m
2026-05-20 CXI1Y DUS → DUS May 20, 22:15 UTCMay 21, 00:15 UTC2h 0m
2026-05-20 CXI4J HAJ → LPA May 20, 19:20 UTCMay 20, 21:00 UTC1h 40m
2026-05-20 CXI2ZD CFU → NUE May 20, 14:55 UTCMay 20, 16:40 UTC1h 45m
2026-05-20 CXI33MY NUE → CFU May 20, 11:50 UTCMay 20, 13:25 UTC1h 35m
2026-05-20 CAI18XF AYT → NUE May 20, 07:35 UTCMay 20, 10:25 UTC2h 50m
2026-05-20 CAI1Y AYT → FMO May 20, 03:20 UTCMay 20, 06:00 UTC2h 41m
2026-05-19 CXI7QC LPA → NUE May 19, 18:10 UTCMay 19, 22:20 UTC4h 10m
2026-05-19 CXI84MY NUE → LPA May 19, 12:10 UTCMay 19, 16:15 UTC4h 5m
2026-05-19 CXI2ZD CFU → NUE May 19, 08:20 UTCMay 19, 10:10 UTC1h 50m
2026-05-19 CXI33MY NUE → CFU May 19, 05:05 UTCMay 19, 06:45 UTC1h 40m
2026-05-18 CXI2W DUS → RHO May 18, 12:30 UTCMay 18, 21:45 UTC9h 14m
2026-05-18 CXI9V HER → NUE May 18, 08:25 UTCMay 18, 11:05 UTC2h 40m
2026-05-18 CXI1KF NUE → HER May 18, 04:20 UTCMay 18, 06:40 UTC2h 20m
2026-05-17 CXI8MM NUE → NUE May 17, 07:15 UTCMay 17, 17:10 UTC9h 55m
2026-05-16 CXI9V HER → NUE May 16, 17:30 UTCMay 16, 20:20 UTC2h 50m
2026-05-16 CXI84VA NUE → HER May 16, 13:31 UTCMay 16, 15:45 UTC2h 15m
2026-05-16 CXI2ZD CFU → NUE May 16, 09:56 UTCMay 16, 11:41 UTC1h 45m
2026-05-16 CXI33MY NUE → CFU May 16, 06:45 UTCMay 16, 08:26 UTC1h 40m
2026-05-15 CXI96TY NUE → LPA May 15, 13:00 UTCMay 15, 22:05 UTC9h 4m

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 TC-MKS page for operator, model, and routing details .

Mode-S 4BB573 frequently asked

What is Mode-S code 4BB573?
4BB573 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-MKS.
Where is Mode-S 4BB573 registered?
Mode-S code 4BB573 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB573 broadcasting right now?
Yes. Mode-S 4BB573 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB573, octal 22732563, decimal 4,961,651.
What flights does 4BB573 operate?
Mode-S 4BB573 has broadcast 20 distinct callsigns, including CXI9V, CXI2W, CXI3J, CXI96TY, CXI1KF.