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sensors Mode-S transponder

4BA99A

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JLZ · AIRBUS A-319

Hex
4BA99A
Octal
22724632
Decimal
4,958,618
Country
TR
Tail
TC-JLZ
Type
A319
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
425
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S 4BA99A.

Country allocation

The ICAO 24-bit address 4BA99A 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
THY3VB - 7 2026-06-23
THY3DG - 7 2026-06-24
THY76W Turkish Airlines 6 2026-07-26
THY3TC - 6 2026-07-18
THY3BY - 6 2026-06-22
THY9ZN - 5 2026-06-17
THY9JW Turkish Airlines 5 2026-07-26
THY8YK Turkish Airlines 5 2026-06-15
THY8JM - 5 2026-07-14
THY7XR - 5 2026-07-19
THY7TZ - 5 2026-07-15
THY70A Turkish Airlines 5 2026-07-25
THY5KB Turkish Airlines 5 2026-06-13
THY3XG Turkish Airlines 5 2026-07-25
THY3RV - 5 2026-07-01
THY3GT - 5 2026-07-01
THY2TX - 5 2026-06-26
THY2FL Turkish Airlines 5 2026-07-23
THY2AN - 5 2026-07-23
THY1UV - 5 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY2US IST → GZT Jul 26, 21:25 UTCJul 26, 21:55 UTC30m
2026-07-26 THY2XK GZT → IST Jul 26, 15:35 UTCJul 26, 19:10 UTC3h 35m
2026-07-26 THY8KY ADF → IST Jul 26, 08:30 UTCJul 26, 12:25 UTC3h 55m
2026-07-26 THY76W SZF → IST Jul 26, 06:00 UTCJul 26, 07:00 UTC1h 1m
2026-07-26 THY9JW TRN → IST Jul 26, 03:45 UTCJul 26, 04:35 UTC50m
2026-07-25 THY31H IST → KCM Jul 25, 09:40 UTCJul 25, 13:15 UTC3h 35m
2026-07-25 THY3XG DIY → IST Jul 25, 05:45 UTCJul 25, 06:30 UTC45m
2026-07-25 THY70A IST → BLL Jul 25, 03:55 UTCJul 25, 04:20 UTC25m
2026-07-24 THY7QK HTY → IST Jul 24, 17:45 UTCJul 24, 19:00 UTC1h 15m
2026-07-24 THY1QB - Jul 24, 15:20 UTCJul 24, 15:50 UTC30m
2026-07-24 THY8DH IST → ASR Jul 24, 10:15 UTCJul 24, 13:15 UTC3h 0m
2026-07-24 THY9FD GZT → IST Jul 24, 03:40 UTCJul 24, 07:25 UTC3h 45m
2026-07-23 THY7VC LHR → ESB Jul 23, 21:25 UTCJul 24, 01:05 UTC3h 40m
2026-07-23 THY2BD ADB → IST Jul 23, 16:00 UTCJul 23, 19:10 UTC3h 10m
2026-07-23 THY2AN - Jul 23, 10:35 UTCJul 23, 11:20 UTC45m
2026-07-23 THY2FL IST → DNZ Jul 23, 08:30 UTCJul 23, 08:55 UTC25m
2026-07-23 THY8FV NAV → IST Jul 23, 03:35 UTCJul 23, 06:35 UTC3h 0m
2026-07-22 THY4RQ AMS → SAW Jul 22, 13:25 UTCJul 22, 17:00 UTC3h 35m
2026-07-21 THY2BN IST → KYA Jul 21, 23:05 UTCJul 21, 23:35 UTC30m
2026-07-21 THY1RK GNY → IST Jul 21, 15:20 UTCJul 21, 19:05 UTC3h 45m
2026-07-21 THY8HB KCM → IST Jul 21, 10:15 UTCJul 21, 13:45 UTC3h 30m
2026-07-21 THY76W SZF → IST Jul 21, 05:45 UTCJul 21, 06:50 UTC1h 5m
2026-07-21 THY9JW TRN → IST Jul 21, 03:40 UTCJul 21, 04:25 UTC45m
2026-07-20 THY2477 - Jul 20, 21:05 UTCJul 21, 00:20 UTC3h 14m
2026-07-20 THY8TG - Jul 20, 15:30 UTCJul 20, 19:15 UTC3h 45m
2026-07-20 THY8HB KCM → IST Jul 20, 09:30 UTCJul 20, 13:15 UTC3h 45m
2026-07-20 THY76W SZF → IST Jul 20, 06:25 UTCJul 20, 06:55 UTC30m
2026-07-20 THY9JW TRN → IST Jul 20, 03:40 UTCJul 20, 04:35 UTC55m
2026-07-19 THY7NY ASR → IST Jul 19, 19:05 UTCJul 19, 21:50 UTC2h 45m
2026-07-19 THY4RQ - Jul 19, 13:35 UTCJul 19, 17:05 UTC3h 30m
2026-07-19 THY2AN - Jul 19, 10:30 UTCJul 19, 11:15 UTC45m
2026-07-19 THY2FL - Jul 19, 08:35 UTCJul 19, 09:00 UTC25m
2026-07-19 THY7XR - Jul 19, 01:55 UTCJul 19, 02:05 UTC10m
2026-07-18 THY1KA ASR → IST Jul 18, 17:35 UTCJul 18, 20:40 UTC3h 5m
2026-07-18 THY3RP - Jul 18, 11:25 UTCJul 18, 15:30 UTC4h 5m
2026-07-18 THY3TC - Jul 18, 05:55 UTCJul 18, 09:30 UTC3h 35m
2026-07-17 THY1ED - Jul 17, 19:00 UTCJul 17, 19:35 UTC35m
2026-07-17 THY1ZH - Jul 17, 17:05 UTCJul 17, 17:40 UTC35m
2026-07-17 THY8HB - Jul 17, 09:40 UTCJul 17, 13:15 UTC3h 35m
2026-07-16 THY7NY - Jul 16, 18:50 UTCJul 16, 21:55 UTC3h 5m
2026-07-16 THY4RQ - Jul 16, 13:40 UTCJul 16, 17:10 UTC3h 30m
2026-07-16 THY1UV - Jul 16, 05:35 UTCJul 16, 09:55 UTC4h 20m
2026-07-15 THY7NY - Jul 15, 18:55 UTCJul 15, 22:00 UTC3h 5m
2026-07-15 THY7TZ - Jul 15, 12:45 UTCJul 15, 13:20 UTC35m
2026-07-15 THY1SG - Jul 15, 10:15 UTCJul 15, 10:40 UTC25m
2026-07-15 THY6WN - Jul 15, 05:35 UTCJul 15, 08:40 UTC3h 5m
2026-07-15 THY7XR - Jul 15, 02:05 UTCJul 15, 02:15 UTC10m
2026-07-14 THY87Q - Jul 14, 23:00 UTCJul 14, 23:25 UTC25m
2026-07-14 THY8JM - Jul 14, 06:25 UTCJul 14, 10:20 UTC3h 55m
2026-07-14 THY5ZM - Jul 14, 01:50 UTCJul 14, 02:35 UTC45m

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

Mode-S 4BA99A frequently asked

What is Mode-S code 4BA99A?
4BA99A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JLZ.
Where is Mode-S 4BA99A registered?
Mode-S code 4BA99A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA99A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA99A, octal 22724632, decimal 4,958,618.
What flights does 4BA99A operate?
Mode-S 4BA99A has broadcast 20 distinct callsigns, including THY3VB, THY3DG, THY76W, THY3TC, THY3BY.