Apparatus

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sensors Mode-S transponder

4BA946

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JJF · BOEING 777-300ER

Hex
4BA946
Octal
22724506
Decimal
4,958,534
Country
TR
Tail
TC-JJF
Type
B77W
No current signal · last broadcast 6h ago
Flights observed
219
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4BA946.

Country allocation

The ICAO 24-bit address 4BA946 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
THY71 - 13 2026-07-09
THY70 Turkish Airlines 10 2026-07-08
THY88 Turkish Airlines 8 2026-06-24
THY76Y Turkish Airlines 8 2026-06-12
THY75D Turkish Airlines 8 2026-06-11
THY27 Turkish Airlines 8 2026-06-26
THY4 - 7 2026-07-03
THY90 - 6 2026-07-14
THY89 Turkish Airlines 6 2026-06-25
THY198 - 6 2026-07-12
THY3MJ - 5 2026-06-14
THY3 Turkish Airlines 5 2026-07-02
THY10 Turkish Airlines 5 2026-06-09
THY91 - 4 2026-07-14
THY9 Turkish Airlines 4 2026-06-08
THY8XS - 4 2026-07-12
THY8HX - 4 2026-07-12
THY85 - 4 2026-07-11
THY72 Turkish Airlines 4 2026-06-16
THY30S - 4 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY91 - Jul 14, 15:30 UTCJul 14, 15:50 UTC20m
2026-07-14 THY90 - Jul 14, 12:00 UTCJul 14, 12:55 UTC55m
2026-07-14 THY90 - Jul 14, 03:30 UTCJul 14, 11:15 UTC7h 45m
2026-07-13 THY199 - Jul 13, 12:55 UTCJul 14, 00:00 UTC11h 5m
2026-07-12 THY198 - Jul 12, 23:40 UTCJul 13, 10:00 UTC10h 20m
2026-07-12 THY4SD - Jul 12, 18:25 UTCJul 12, 21:25 UTC3h 0m
2026-07-12 THY2LD - Jul 12, 12:10 UTCJul 12, 15:40 UTC3h 30m
2026-07-12 THY8XS - Jul 12, 08:35 UTCJul 12, 09:35 UTC1h 0m
2026-07-12 THY8HX - Jul 12, 05:45 UTCJul 12, 06:40 UTC55m
2026-07-11 THY85 - Jul 11, 13:45 UTCJul 12, 01:35 UTC11h 50m
2026-07-10 THY84 - Jul 10, 23:35 UTCJul 11, 10:25 UTC10h 50m
2026-07-10 THY3UN - Jul 10, 10:35 UTCJul 10, 14:05 UTC3h 30m
2026-07-09 THY9LC - Jul 9, 18:30 UTCJul 10, 03:45 UTC9h 15m
2026-07-09 THY69W - Jul 9, 05:30 UTCJul 9, 16:20 UTC10h 50m
2026-07-09 THY71 - Jul 9, 01:30 UTCJul 9, 01:45 UTC15m
2026-07-08 THY71 - Jul 8, 16:15 UTCJul 9, 00:50 UTC8h 35m
2026-07-08 THY71 - Jul 8, 15:20 UTCJul 8, 15:35 UTC15m
2026-07-08 THY70 IST → HKG Jul 8, 08:25 UTCJul 8, 09:10 UTC45m
2026-07-07 THY70 IST → HKG Jul 7, 23:05 UTCJul 8, 06:40 UTC7h 35m
2026-07-07 THY4YH - Jul 7, 19:10 UTCJul 7, 19:55 UTC45m
2026-07-07 THY80E - Jul 7, 16:45 UTCJul 7, 17:25 UTC40m
2026-07-07 THY2AY - Jul 7, 02:25 UTCJul 7, 13:30 UTC11h 5m
2026-07-06 THY5KM IST → IAH Jul 6, 11:45 UTCJul 7, 00:20 UTC12h 35m
2026-07-06 THY2RC - Jul 6, 07:10 UTCJul 6, 08:00 UTC50m
2026-07-06 THY5JA - Jul 6, 04:05 UTCJul 6, 04:55 UTC50m
2026-07-05 THY4RN - Jul 5, 22:05 UTCJul 6, 01:05 UTC3h 0m
2026-07-05 THY9PG CDG → SAW Jul 5, 16:45 UTCJul 5, 20:10 UTC3h 25m
2026-07-05 THY99D - Jul 5, 03:30 UTCJul 5, 14:25 UTC10h 55m
2026-07-04 THY77J - Jul 4, 13:35 UTCJul 5, 01:05 UTC11h 30m
2026-07-04 THY1KD - Jul 4, 09:15 UTCJul 4, 10:55 UTC1h 40m
2026-07-04 THY7KF - Jul 4, 05:25 UTCJul 4, 07:15 UTC1h 50m
2026-07-03 THY4 - Jul 3, 17:20 UTCJul 4, 02:00 UTC8h 40m
2026-07-02 THY3 IST → JFK Jul 2, 19:55 UTCJul 3, 14:55 UTC19h 0m
2026-07-02 THY3 IST → JFK Jul 2, 18:40 UTCJul 3, 14:55 UTC20h 15m
2026-07-02 THY55 SIN → IST Jul 2, 15:35 UTCJul 3, 14:55 UTC23h 20m
2026-07-02 THY55 SIN → IST Jul 2, 15:25 UTCJul 3, 13:30 UTC22h 5m
2026-07-01 THY54 - Jul 1, 23:20 UTCJul 2, 09:35 UTC10h 15m
2026-07-01 THY5YR - Jul 1, 03:15 UTCJul 1, 14:25 UTC11h 10m
2026-06-30 THY83J IST → DFW Jun 30, 12:15 UTCJul 1, 00:10 UTC11h 55m
2026-06-29 THY4 - Jun 29, 17:14 UTCJun 30, 01:55 UTC8h 41m
2026-06-29 THY3 IST → JFK Jun 29, 04:55 UTCJun 29, 14:29 UTC9h 35m
2026-06-28 THY85 - Jun 28, 14:54 UTCJun 29, 02:20 UTC11h 25m
2026-06-28 THY84 - Jun 28, 01:19 UTCJun 28, 12:05 UTC10h 45m
2026-06-27 THY9WR - Jun 27, 20:24 UTCJun 27, 23:14 UTC2h 50m
2026-06-27 THY1PA IST → CDG Jun 27, 13:55 UTCJun 27, 16:39 UTC2h 45m
2026-06-26 THY27 PVG → IST Jun 26, 16:20 UTCJun 27, 01:04 UTC8h 45m
2026-06-25 THY26 - Jun 25, 22:45 UTCJun 26, 16:39 UTC17h 55m
2026-06-25 THY3RU CMN → IST Jun 25, 16:14 UTCJun 25, 20:05 UTC3h 50m
2026-06-25 THY5RM - Jun 25, 09:29 UTCJun 25, 13:20 UTC3h 50m
2026-06-25 THY89 PEK → IST Jun 25, 01:50 UTCJun 25, 01:59 UTC10m

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

Mode-S 4BA946 frequently asked

What is Mode-S code 4BA946?
4BA946 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JJF.
Where is Mode-S 4BA946 registered?
Mode-S code 4BA946 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA946 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA946, octal 22724506, decimal 4,958,534.
What flights does 4BA946 operate?
Mode-S 4BA946 has broadcast 20 distinct callsigns, including THY71, THY70, THY88, THY76Y, THY75D.