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sensors Mode-S transponder

4BB245

ICAO 24-bit transponder address · allocated to Turkey

Hex
4BB245
Octal
22731105
Decimal
4,960,837
Country
TR
Broadcasting now · callsign THY9HC · 3,100 ft
Flights observed
332
Distinct callsigns
20
Country
TR
Last broadcast
12d ago

Current position

4BB245 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB245 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
THY60C - 6 2026-07-17
THY4VS Turkish Airlines 6 2026-07-05
THY2PH - 6 2026-07-17
THY8YA Turkish Airlines 5 2026-07-22
THY7GJ Turkish Airlines 5 2026-07-22
THY8BC - 4 2026-07-11
THY7HQ Turkish Airlines 4 2026-07-26
THY6DF Turkish Airlines 4 2026-07-22
THY5NU Turkish Airlines 4 2026-07-22
THY42W Turkish Airlines 4 2026-07-26
THY345 Turkish Airlines 4 2026-07-24
THY2XW - 4 2026-07-11
THY9YZ - 3 2026-07-14
THY9LP - 3 2026-07-16
THY8JE - 3 2026-07-12
THY7XE Turkish Airlines 3 2026-07-20
THY7PE - 3 2026-07-21
THY7JD - 3 2026-07-04
THY7FU - 3 2026-07-13
THY6CA Turkish Airlines 3 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY42W VLC → IST Jul 26, 17:35 UTCJul 26, 20:35 UTC3h 0m
2026-07-26 THY7HQ IST → VLC Jul 26, 12:30 UTCJul 26, 16:10 UTC3h 40m
2026-07-26 THY3HL DXB → IST Jul 26, 06:15 UTCJul 26, 10:20 UTC4h 6m
2026-07-25 THY4CH IST → DXB Jul 25, 22:50 UTCJul 26, 03:20 UTC4h 30m
2026-07-25 THY42W VLC → IST Jul 25, 18:00 UTCJul 25, 21:10 UTC3h 10m
2026-07-25 THY7HQ IST → VLC Jul 25, 12:45 UTCJul 25, 16:20 UTC3h 35m
2026-07-24 THY345 FRU → IST Jul 24, 22:40 UTCJul 25, 09:45 UTC11h 5m
2026-07-24 THY1YR VCE → IST Jul 24, 18:15 UTCJul 24, 20:10 UTC1h 55m
2026-07-24 THY8QM IST → VCE Jul 24, 14:45 UTCJul 24, 16:50 UTC2h 5m
2026-07-24 THY8MS KSY → IST Jul 24, 09:25 UTCJul 24, 12:45 UTC3h 20m
2026-07-24 THY7DZ KWI → IST Jul 24, 04:30 UTCJul 24, 08:10 UTC3h 40m
2026-07-23 THY42W VLC → IST Jul 23, 17:30 UTCJul 23, 20:20 UTC2h 50m
2026-07-23 THY7HQ IST → VLC Jul 23, 12:25 UTCJul 23, 16:05 UTC3h 40m
2026-07-22 THY3HL DXB → IST Jul 22, 22:45 UTCJul 23, 10:45 UTC12h 0m
2026-07-22 THY6DF CPH → IST Jul 22, 18:15 UTCJul 22, 21:00 UTC2h 45m
2026-07-22 THY5NU IST → CPH Jul 22, 14:00 UTCJul 22, 16:50 UTC2h 50m
2026-07-22 THY7NC TZX → IST Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-22 THY7GJ TBS → IST Jul 22, 04:35 UTCJul 22, 04:55 UTC20m
2026-07-22 THY7GJ TBS → IST Jul 22, 02:50 UTCJul 22, 03:50 UTC1h 0m
2026-07-22 THY8YA IST → TBS Jul 22, 00:45 UTCJul 22, 01:00 UTC15m
2026-07-21 THY8YA IST → TBS Jul 21, 23:15 UTCJul 21, 23:45 UTC30m
2026-07-21 THY6CA LYS → IST Jul 21, 17:55 UTCJul 21, 20:25 UTC2h 30m
2026-07-21 THY7PE - Jul 21, 12:45 UTCJul 21, 15:45 UTC3h 0m
2026-07-20 THY353 ALA → IST Jul 20, 22:05 UTCJul 21, 10:15 UTC12h 10m
2026-07-20 THY6CA LYS → IST Jul 20, 17:10 UTCJul 20, 19:50 UTC2h 40m
2026-07-20 THY7PE - Jul 20, 12:45 UTCJul 20, 15:55 UTC3h 10m
2026-07-20 THY5QF ECN → IST Jul 20, 08:20 UTCJul 20, 10:15 UTC1h 55m
2026-07-20 THY7XE IST → ERZ Jul 20, 04:15 UTCJul 20, 06:45 UTC2h 30m
2026-07-19 THY2EP CLJ → IST Jul 19, 18:20 UTCJul 19, 19:30 UTC1h 10m
2026-07-19 THY98U MAD → IST Jul 19, 16:05 UTCJul 19, 17:05 UTC1h 0m
2026-07-19 THY8WX OPO → IST Jul 19, 10:15 UTCJul 19, 14:10 UTC3h 55m
2026-07-19 THY3FN IST → OPO Jul 19, 04:15 UTCJul 19, 08:35 UTC4h 20m
2026-07-18 THY4BU FRA → IST Jul 18, 21:05 UTCJul 18, 23:30 UTC2h 25m
2026-07-18 THY1SQ IST → BRI Jul 18, 16:20 UTCJul 18, 19:05 UTC2h 45m
2026-07-18 THY8MS - Jul 18, 09:25 UTCJul 18, 12:40 UTC3h 15m
2026-07-18 THY7DZ KWI → IST Jul 18, 04:25 UTCJul 18, 08:05 UTC3h 40m
2026-07-17 THY2PH - Jul 17, 19:20 UTCJul 17, 22:40 UTC3h 20m
2026-07-17 THY60C - Jul 17, 11:55 UTCJul 17, 16:10 UTC4h 15m
2026-07-17 THY9MV - Jul 17, 07:25 UTCJul 17, 09:25 UTC2h 0m
2026-07-16 THY5FK - Jul 16, 17:49 UTCJul 16, 20:45 UTC2h 55m
2026-07-16 THY9LP - Jul 16, 12:55 UTCJul 16, 16:15 UTC3h 20m
2026-07-16 THY1AS - Jul 16, 08:50 UTCJul 16, 10:50 UTC2h 0m
2026-07-16 THY9EB - Jul 16, 05:45 UTCJul 16, 07:35 UTC1h 50m
2026-07-15 THY7CT - Jul 15, 10:25 UTCJul 15, 13:20 UTC2h 55m
2026-07-15 THY1YW - Jul 15, 05:40 UTCJul 15, 08:30 UTC2h 50m
2026-07-14 THY4FA - Jul 14, 09:35 UTCJul 14, 13:00 UTC3h 25m
2026-07-14 THY9YZ - Jul 14, 06:05 UTCJul 14, 08:20 UTC2h 15m
2026-07-13 THY1AJ - Jul 13, 17:35 UTCJul 13, 19:35 UTC2h 0m
2026-07-13 THY7FU - Jul 13, 14:10 UTCJul 13, 16:10 UTC2h 0m
2026-07-13 THY1QU - Jul 13, 11:10 UTCJul 13, 12:00 UTC50m

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 4BB245 frequently asked

What is Mode-S code 4BB245?
4BB245 is an ICAO 24-bit transponder address. Allocated to Turkey.
Where is Mode-S 4BB245 registered?
Mode-S code 4BB245 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB245 broadcasting right now?
Yes. Mode-S 4BB245 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB245, octal 22731105, decimal 4,960,837.
What flights does 4BB245 operate?
Mode-S 4BB245 has broadcast 20 distinct callsigns, including THY60C, THY4VS, THY2PH, THY8YA, THY7GJ.