Apparatus

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sensors Mode-S transponder

4BA956

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BA956
Octal
22724526
Decimal
4,958,550
Country
TR
Tail
TC-JJV
Type
B77W
Transponder active on ground
Flights observed
259
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 16:35 UTC

Last known position

Most recent position reported by Mode-S 4BA956.

Country allocation

The ICAO 24-bit address 4BA956 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
THY85 - 12 2026-07-10
THY5 Turkish Airlines 12 2026-05-22
THY6 Turkish Airlines 11 2026-05-23
THY84 - 9 2026-07-08
THY91 - 7 2026-07-22
THY3YH Turkish Airlines 7 2026-07-25
THY99D - 6 2026-06-24
THY90 Turkish Airlines 6 2026-07-20
THY77J Turkish Airlines 6 2026-07-26
THY2NP Turkish Airlines 6 2026-07-25
THY2 Turkish Airlines 6 2026-07-26
THY1 Turkish Airlines 6 2026-07-25
THY9 - 5 2026-07-10
THY8XS - 5 2026-07-06
THY87 - 5 2026-07-13
THY73 - 5 2026-07-18
THY24 Turkish Airlines 5 2026-07-02
THY199 - 5 2026-06-30
THY10 - 5 2026-07-11
THY8HX - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY77J IST → MIA Jul 26, 12:50 UTCJul 26, 16:35 UTC3h 45m
2026-07-26 THY2 JFK → IST Jul 26, 00:45 UTCJul 26, 09:30 UTC8h 46m
2026-07-25 THY1 IST → JFK Jul 25, 12:20 UTCJul 25, 22:10 UTC9h 50m
2026-07-25 THY2NP AYT → VKO Jul 25, 07:55 UTCJul 25, 08:55 UTC1h 0m
2026-07-25 THY3YH IST → BOD Jul 25, 05:30 UTCJul 25, 06:00 UTC30m
2026-07-25 THY55 SIN → IST Jul 25, 01:35 UTCJul 25, 01:55 UTC20m
2026-07-24 THY55 SIN → IST Jul 24, 15:30 UTCJul 25, 00:55 UTC9h 25m
2026-07-24 THY54 IST → SIN Jul 24, 00:35 UTCJul 24, 09:45 UTC9h 10m
2026-07-23 THY54 IST → SIN Jul 23, 23:20 UTCJul 23, 23:40 UTC20m
2026-07-23 THY3AX IST → ADB Jul 23, 19:20 UTCJul 23, 20:15 UTC55m
2026-07-23 THY2XQ IST → ATH Jul 23, 16:25 UTCJul 23, 17:25 UTC1h 0m
2026-07-23 THY2AY IAH → IST Jul 23, 02:35 UTCJul 23, 13:55 UTC11h 20m
2026-07-22 THY5KM IST → IAH Jul 22, 11:45 UTCJul 23, 00:10 UTC12h 25m
2026-07-22 THY3YH IST → BOD Jul 22, 05:15 UTCJul 22, 05:25 UTC10m
2026-07-22 THY91 - Jul 22, 00:35 UTCJul 22, 00:55 UTC20m
2026-07-21 THY91 - Jul 21, 14:30 UTCJul 21, 23:55 UTC9h 25m
2026-07-20 THY90 IST → ICN Jul 20, 23:05 UTCJul 21, 08:00 UTC8h 54m
2026-07-20 THY4YH - Jul 20, 18:55 UTCJul 20, 19:35 UTC40m
2026-07-20 THY80E - Jul 20, 16:15 UTCJul 20, 16:50 UTC35m
2026-07-20 THY2 JFK → IST Jul 20, 03:50 UTCJul 20, 12:30 UTC8h 40m
2026-07-19 THY1 - Jul 19, 11:50 UTCJul 19, 21:45 UTC9h 55m
2026-07-19 THY6KL ATH → IST Jul 19, 08:20 UTCJul 19, 09:15 UTC55m
2026-07-19 THY8FW IST → ATH Jul 19, 04:55 UTCJul 19, 05:50 UTC55m
2026-07-18 THY73 - Jul 18, 16:35 UTCJul 19, 01:40 UTC9h 5m
2026-07-18 THY72 - Jul 18, 00:04 UTCJul 18, 06:25 UTC6h 21m
2026-07-17 THY72 - Jul 17, 22:45 UTCJul 17, 23:10 UTC25m
2026-07-17 THY8AK - Jul 17, 18:00 UTCJul 17, 18:50 UTC50m
2026-07-17 THY5HS - Jul 17, 15:10 UTCJul 17, 15:55 UTC45m
2026-07-17 THY8 - Jul 17, 02:45 UTCJul 17, 12:00 UTC9h 15m
2026-07-16 THY7 - Jul 16, 14:00 UTCJul 16, 23:59 UTC10h 0m
2026-07-16 THY3YB - Jul 16, 09:20 UTCJul 16, 11:20 UTC2h 0m
2026-07-16 THY4XL - Jul 16, 04:50 UTCJul 16, 06:55 UTC2h 5m
2026-07-15 THY89 - Jul 15, 23:35 UTCJul 16, 00:55 UTC1h 20m
2026-07-15 THY88 - Jul 15, 06:35 UTCJul 15, 06:55 UTC20m
2026-07-14 THY88 - Jul 14, 23:10 UTCJul 15, 00:55 UTC1h 45m
2026-07-14 THY2TC - Jul 14, 17:40 UTCJul 14, 20:30 UTC2h 50m
2026-07-14 THY5QT - Jul 14, 12:25 UTCJul 14, 15:25 UTC3h 0m
2026-07-14 THY2NP - Jul 14, 08:05 UTCJul 14, 08:50 UTC45m
2026-07-14 THY3YH - Jul 14, 05:35 UTCJul 14, 06:15 UTC40m
2026-07-13 THY9LC - Jul 13, 17:40 UTCJul 14, 03:10 UTC9h 30m
2026-07-13 THY69W - Jul 13, 05:05 UTCJul 13, 15:10 UTC10h 5m
2026-07-13 THY87 - Jul 13, 00:35 UTCJul 13, 00:55 UTC20m
2026-07-12 THY87 - Jul 12, 13:25 UTCJul 12, 23:55 UTC10h 30m
2026-07-11 THY86 - Jul 11, 23:50 UTCJul 12, 09:50 UTC10h 0m
2026-07-11 THY10 - Jul 11, 03:50 UTCJul 11, 16:00 UTC12h 10m
2026-07-10 THY9 - Jul 10, 12:05 UTCJul 11, 01:40 UTC13h 35m
2026-07-10 THY85 - Jul 10, 00:55 UTCJul 10, 01:10 UTC15m
2026-07-09 THY85 - Jul 9, 13:55 UTCJul 10, 00:10 UTC10h 15m
2026-07-08 THY84 - Jul 8, 23:40 UTCJul 9, 10:45 UTC11h 5m
2026-07-08 THY9WR - Jul 8, 18:35 UTCJul 8, 21:15 UTC2h 40m

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

Mode-S 4BA956 frequently asked

What is Mode-S code 4BA956?
4BA956 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JJV.
Where is Mode-S 4BA956 registered?
Mode-S code 4BA956 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA956 broadcasting right now?
Mode-S 4BA956 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA956, octal 22724526, decimal 4,958,550.
What flights does 4BA956 operate?
Mode-S 4BA956 has broadcast 20 distinct callsigns, including THY85, THY5, THY6, THY84, THY91.