Apparatus

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sensors Mode-S transponder

4BB261

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LSA · AIRBUS A-321neo

Hex
4BB261
Octal
22731141
Decimal
4,960,865
Country
TR
Tail
TC-LSA
Type
A21N
Broadcasting now · callsign THY39P · 34,975 ft
Flights observed
404
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 19:55 UTC

Current position

4BB261 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB261 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
THY6AM - 9 2026-07-07
THY7YP - 8 2026-07-08
THY1XL - 5 2026-06-08
THY9TE - 4 2026-06-16
THY9QD - 4 2026-07-17
THY8XH Turkish Airlines 4 2026-06-15
THY8MQ Turkish Airlines 4 2026-07-26
THY7QZ - 4 2026-07-03
THY7PY Turkish Airlines 4 2026-06-08
THY70G - 4 2026-07-16
THY6ZU Turkish Airlines 4 2026-07-23
THY3ZM Turkish Airlines 4 2026-07-23
THY39P Turkish Airlines 4 2026-05-15
THY367 - 4 2026-06-27
THY359 - 4 2026-06-17
THY9XY - 3 2026-04-13
THY9TF Turkish Airlines 3 2026-06-14
THY9FG Turkish Airlines 3 2026-05-25
THY9CH - 3 2026-07-16
THY8WZ - 3 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY8MQ DUB → IST Jul 26, 16:45 UTCJul 26, 19:55 UTC3h 10m
2026-07-26 THY8WZ - Jul 26, 12:35 UTCJul 26, 15:30 UTC2h 55m
2026-07-26 THY77T DNZ → IST Jul 26, 10:40 UTCJul 26, 10:50 UTC10m
2026-07-26 THY88H IST → GYD Jul 26, 04:20 UTCJul 26, 09:40 UTC5h 21m
2026-07-25 THY5LY ALG → IST Jul 25, 23:50 UTCJul 26, 02:30 UTC2h 40m
2026-07-25 THY5CR IST → ALG Jul 25, 18:35 UTCJul 25, 21:45 UTC3h 10m
2026-07-25 THY5EL GZT → IST Jul 25, 14:20 UTCJul 25, 16:40 UTC2h 20m
2026-07-25 THY3RF IST → DIY Jul 25, 10:15 UTCJul 25, 12:45 UTC2h 30m
2026-07-25 THY9TJ IST → DUS Jul 25, 07:10 UTCJul 25, 08:15 UTC1h 5m
2026-07-25 THY4ND VCE → ISL Jul 25, 04:50 UTCJul 25, 05:55 UTC1h 5m
2026-07-24 THY6GT CDG → IST Jul 24, 18:45 UTCJul 24, 22:25 UTC3h 40m
2026-07-24 THY3ML LGW → IST Jul 24, 13:30 UTCJul 24, 16:40 UTC3h 10m
2026-07-24 THY9KU IST → LGW Jul 24, 08:20 UTCJul 24, 12:00 UTC3h 40m
2026-07-24 THY4DU BLL → IST Jul 24, 04:05 UTCJul 24, 06:05 UTC2h 0m
2026-07-23 THY2VM IST → AMM Jul 23, 23:25 UTCJul 24, 01:25 UTC2h 0m
2026-07-23 THY3ZM IST → BRU Jul 23, 18:15 UTCJul 23, 20:25 UTC2h 10m
2026-07-23 THY6ZU IST → ASR Jul 23, 13:50 UTCJul 23, 16:40 UTC2h 50m
2026-07-23 THY662 TUN → IST Jul 23, 09:30 UTCJul 23, 11:35 UTC2h 5m
2026-07-23 THY661 IST → TUN Jul 23, 05:30 UTCJul 23, 07:50 UTC2h 20m
2026-07-23 THY4WP DOH → IST Jul 23, 00:25 UTCJul 23, 03:40 UTC3h 15m
2026-07-22 THY6US - Jul 22, 18:00 UTCJul 22, 21:55 UTC3h 55m
2026-07-22 THY7AT DUS → IST Jul 22, 13:55 UTCJul 22, 16:10 UTC2h 15m
2026-07-22 THY40B OTP → IST Jul 22, 10:20 UTCJul 22, 12:05 UTC1h 45m
2026-07-22 THY360 IST → EVN Jul 22, 00:00 UTCJul 22, 01:25 UTC1h 25m
2026-07-21 THY7ZA - Jul 21, 16:25 UTCJul 21, 20:15 UTC3h 50m
2026-07-21 THY2WF IST → OPO Jul 21, 10:30 UTCJul 21, 14:55 UTC4h 25m
2026-07-21 THY87X IST → LYS Jul 21, 05:10 UTCJul 21, 07:35 UTC2h 25m
2026-07-21 THY9XT IST → BER Jul 21, 01:00 UTCJul 21, 03:25 UTC2h 25m
2026-07-20 THY1QH ZRH → IST Jul 20, 17:05 UTCJul 20, 19:30 UTC2h 25m
2026-07-20 THY3UY - Jul 20, 13:10 UTCJul 20, 15:45 UTC2h 35m
2026-07-20 THY1YM KFS → IST Jul 20, 08:45 UTCJul 20, 11:25 UTC2h 40m
2026-07-20 THY1LZ AGP → IST Jul 20, 04:25 UTCJul 20, 07:05 UTC2h 40m
2026-07-19 THY98E IST → BGW Jul 19, 19:25 UTCJul 20, 00:35 UTC5h 10m
2026-07-19 THY109 - Jul 19, 10:05 UTCJul 19, 17:20 UTC7h 15m
2026-07-19 THY4AX CDG → IST Jul 19, 05:35 UTCJul 19, 08:20 UTC2h 45m
2026-07-18 THY8WM - Jul 18, 17:10 UTCJul 18, 20:30 UTC3h 20m
2026-07-18 THY366 - Jul 18, 04:45 UTCJul 18, 14:20 UTC9h 35m
2026-07-17 THY9JL - Jul 17, 17:25 UTCJul 17, 20:20 UTC2h 55m
2026-07-17 THY50J - Jul 17, 12:04 UTCJul 17, 15:20 UTC3h 15m
2026-07-17 THY9QD - Jul 17, 06:20 UTCJul 17, 09:40 UTC3h 20m
2026-07-16 THY70G - Jul 16, 18:25 UTCJul 16, 22:00 UTC3h 35m
2026-07-16 THY2SA - Jul 16, 13:25 UTCJul 16, 16:00 UTC2h 35m
2026-07-16 THY9CH - Jul 16, 09:00 UTCJul 16, 11:45 UTC2h 45m
2026-07-16 THY1FE - Jul 16, 05:55 UTCJul 16, 06:45 UTC50m
2026-07-16 THY6WR - Jul 16, 03:55 UTCJul 16, 04:45 UTC50m
2026-07-16 THY7XR - Jul 16, 02:00 UTCJul 16, 02:10 UTC10m
2026-07-15 THY87Q - Jul 15, 22:55 UTCJul 15, 23:20 UTC25m
2026-07-15 THY3VD - Jul 15, 17:00 UTCJul 15, 20:40 UTC3h 40m
2026-07-15 THY1PY - Jul 15, 10:50 UTCJul 15, 14:50 UTC4h 0m
2026-07-15 THY3WQ - Jul 15, 07:30 UTCJul 15, 09:05 UTC1h 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.

Prefer a tail-number view? See the TC-LSA page for operator, model, and routing details .

Mode-S 4BB261 frequently asked

What is Mode-S code 4BB261?
4BB261 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LSA.
Where is Mode-S 4BB261 registered?
Mode-S code 4BB261 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB261 broadcasting right now?
Yes. Mode-S 4BB261 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB261, octal 22731141, decimal 4,960,865.
What flights does 4BB261 operate?
Mode-S 4BB261 has broadcast 20 distinct callsigns, including THY6AM, THY7YP, THY1XL, THY9TE, THY9QD.