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sensors Mode-S transponder

4BAA8B

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JTK · AIRBUS A-321

Hex
4BAA8B
Octal
22725213
Decimal
4,958,859
Country
TR
Tail
TC-JTK
Type
A321
Broadcasting now · callsign THY5NU · 32,000 ft
Flights observed
370
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:20 UTC

Current position

4BAA8B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BAA8B 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
THY3GL - 8 2026-07-16
THY9VR - 5 2026-07-09
THY8KV - 5 2026-07-09
THY6ZS - 5 2026-07-16
THY5EA Turkish Airlines 5 2026-06-07
THY7ZV - 4 2026-07-21
THY6JV - 4 2026-07-07
THY6JP - 4 2026-07-21
THY6BK - 4 2026-07-07
THY2EG Turkish Airlines 4 2026-06-07
THY9UH Turkish Airlines 3 2026-06-07
THY8JE Turkish Airlines 3 2026-05-18
THY8GQ Turkish Airlines 3 2026-05-11
THY8FB - 3 2026-07-04
THY7NU - 3 2026-07-04
THY6XK - 3 2026-07-19
THY6WQ - 3 2026-07-19
THY664 Turkish Airlines 3 2026-04-19
THY663 - 3 2026-04-19
THY5TK Turkish Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY9LK ALG → IST Jul 26, 17:45 UTCJul 26, 20:20 UTC2h 35m
2026-07-26 THY5EC IST → ALG Jul 26, 12:25 UTCJul 26, 15:30 UTC3h 5m
2026-07-26 THY9TE RIX → IST Jul 26, 07:20 UTCJul 26, 10:25 UTC3h 5m
2026-07-25 THY8XH IST → LGW Jul 25, 18:00 UTCJul 25, 21:30 UTC3h 30m
2026-07-25 THY2LX GZT → IST Jul 25, 15:10 UTCJul 25, 16:05 UTC55m
2026-07-25 THY4CV - Jul 25, 13:00 UTCJul 25, 13:50 UTC50m
2026-07-23 THY1AS BLQ → IST Jul 23, 08:45 UTCJul 23, 10:35 UTC1h 50m
2026-07-23 THY9EB IST → IST Jul 23, 05:10 UTCJul 23, 07:25 UTC2h 15m
2026-07-22 THY137 MED → IST Jul 22, 18:25 UTCJul 23, 01:35 UTC7h 10m
2026-07-22 THY2ZC ERZ → IST Jul 22, 15:00 UTCJul 22, 16:40 UTC1h 40m
2026-07-22 THY8QB IST → VIE Jul 22, 11:45 UTCJul 22, 13:35 UTC1h 50m
2026-07-21 THY5LY ALG → IST Jul 21, 22:45 UTCJul 22, 01:30 UTC2h 45m
2026-07-21 THY5CR IST → ALG Jul 21, 17:50 UTCJul 21, 21:00 UTC3h 10m
2026-07-21 THY6JP - Jul 21, 14:45 UTCJul 21, 15:55 UTC1h 10m
2026-07-21 THY7ZV - Jul 21, 12:05 UTCJul 21, 13:25 UTC1h 20m
2026-07-21 THY1950 - Jul 21, 05:40 UTCJul 21, 08:25 UTC2h 45m
2026-07-20 THY1949 IST → BRU Jul 20, 16:55 UTCJul 20, 20:10 UTC3h 15m
2026-07-20 THY17V - Jul 20, 13:00 UTCJul 20, 14:20 UTC1h 20m
2026-07-20 THY5TD - Jul 20, 10:40 UTCJul 20, 11:50 UTC1h 10m
2026-07-20 THY2BQ PRN → IST Jul 20, 07:55 UTCJul 20, 08:55 UTC1h 0m
2026-07-20 THY90L IST → PRN Jul 20, 05:30 UTCJul 20, 06:20 UTC50m
2026-07-19 THY6JM ADB → IST Jul 19, 23:10 UTCJul 19, 23:45 UTC35m
2026-07-19 THY1FV - Jul 19, 21:15 UTCJul 19, 21:55 UTC40m
2026-07-19 THY2DW IST → BRE Jul 19, 16:50 UTCJul 19, 17:55 UTC1h 5m
2026-07-19 THY9RK IST → TIV Jul 19, 14:05 UTCJul 19, 15:05 UTC1h 0m
2026-07-19 THY6WQ - Jul 19, 09:25 UTCJul 19, 12:00 UTC2h 35m
2026-07-19 THY6XK - Jul 19, 05:55 UTCJul 19, 08:10 UTC2h 15m
2026-07-18 THY8MQ - Jul 18, 16:35 UTCJul 18, 19:45 UTC3h 10m
2026-07-18 THY8WZ - Jul 18, 12:20 UTCJul 18, 15:15 UTC2h 55m
2026-07-18 THY65X - Jul 18, 07:55 UTCJul 18, 09:45 UTC1h 50m
2026-07-18 THY9SD IST → LJU Jul 18, 04:50 UTCJul 18, 06:40 UTC1h 50m
2026-07-17 THY9BA - Jul 17, 19:15 UTCJul 17, 20:04 UTC50m
2026-07-17 THY3DG - Jul 17, 14:04 UTCJul 17, 14:35 UTC30m
2026-07-17 THY3DG - Jul 17, 12:50 UTCJul 17, 13:25 UTC35m
2026-07-17 THY3291 DEL → IDR Jul 17, 03:05 UTCJul 17, 08:35 UTC5h 30m
2026-07-16 THY3VB - Jul 16, 23:44 UTCJul 16, 23:59 UTC15m
2026-07-16 THY3VB - Jul 16, 22:35 UTCJul 16, 23:05 UTC30m
2026-07-16 THY3GL - Jul 16, 20:39 UTCJul 16, 20:55 UTC15m
2026-07-16 THY3GL - Jul 16, 19:10 UTCJul 16, 19:55 UTC45m
2026-07-16 THY6ZS - Jul 16, 17:49 UTCJul 16, 18:05 UTC15m
2026-07-16 THY6ZS - Jul 16, 16:40 UTCJul 16, 17:10 UTC30m
2026-07-16 THY7MP - Jul 16, 08:15 UTCJul 16, 10:55 UTC2h 40m
2026-07-16 THY3RK - Jul 16, 04:15 UTCJul 16, 06:50 UTC2h 35m
2026-07-15 THY5LY - Jul 15, 22:35 UTCJul 16, 01:30 UTC2h 55m
2026-07-15 THY5CR - Jul 15, 17:40 UTCJul 15, 19:50 UTC2h 10m
2026-07-15 THY5MG - Jul 15, 14:35 UTCJul 15, 15:35 UTC1h 0m
2026-07-15 THY9JC - Jul 15, 10:05 UTCJul 15, 11:00 UTC55m
2026-07-15 THY3NU - Jul 15, 05:30 UTCJul 15, 07:45 UTC2h 15m
2026-07-14 THY1SQ - Jul 14, 16:35 UTCJul 14, 19:25 UTC2h 50m
2026-07-14 THY4QR - Jul 14, 14:00 UTCJul 14, 14:25 UTC25m

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

Mode-S 4BAA8B frequently asked

What is Mode-S code 4BAA8B?
4BAA8B is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JTK.
Where is Mode-S 4BAA8B registered?
Mode-S code 4BAA8B is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA8B broadcasting right now?
Yes. Mode-S 4BAA8B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA8B, octal 22725213, decimal 4,958,859.
What flights does 4BAA8B operate?
Mode-S 4BAA8B has broadcast 20 distinct callsigns, including THY3GL, THY9VR, THY8KV, THY6ZS, THY5EA.