sensors Mode-S transponder

4BA949

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BA949
Octal
22724511
Decimal
4,958,537
Country
TR
Tail
TC-JJI
Type
B77W
Broadcasting now · callsign THY4JD · 32,000 ft
Flights observed
119
Distinct callsigns
20
Country
TR
Last broadcast
37m ago

Current position

4BA949 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BA949 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THY4JD IST → MIA May 29, 23:20 UTCMay 30, 00:15 UTC55m
2026-05-29 THY3MJ LHR → IST May 29, 11:15 UTCMay 29, 14:15 UTC3h 0m
2026-05-29 THY30S SAW → EBL May 29, 05:10 UTCMay 29, 08:45 UTC3h 35m
2026-05-29 THY73 CAN → IST May 29, 02:00 UTCMay 29, 02:20 UTC20m
2026-05-28 THY73 CAN → IST May 28, 16:05 UTCMay 29, 01:20 UTC9h 15m
2026-05-28 THY73 CAN → IST May 28, 04:20 UTCMay 29, 01:20 UTC21h 0m
2026-05-28 THY73 CAN → IST May 28, 02:50 UTCMay 29, 01:20 UTC22h 30m
2026-05-28 THY73 CAN → IST May 28, 00:20 UTCMay 29, 00:15 UTC23h 55m
2026-05-27 THY72 IST → CAN May 27, 22:35 UTCMay 28, 20:30 UTC21h 55m
2026-05-27 THY10 LAX → IST May 27, 03:50 UTCMay 27, 16:00 UTC12h 11m
2026-05-26 THY9 IST → LAX May 26, 12:10 UTCMay 27, 01:29 UTC13h 20m
2026-05-26 THY6KL ATH → IST May 26, 08:24 UTCMay 26, 09:04 UTC40m
2026-05-26 THY8FW IST → ATH May 26, 04:54 UTCMay 26, 05:45 UTC50m
2026-05-25 THY71 HKG → IST May 25, 17:20 UTCMay 26, 00:54 UTC7h 34m
2026-05-25 THY71 HKG → IST May 25, 14:55 UTCMay 25, 15:10 UTC15m
2026-05-25 THY70 IST → HKG May 25, 08:05 UTCMay 25, 08:50 UTC45m
2026-05-25 THY70 IST → HKG May 25, 03:25 UTCMay 25, 05:40 UTC2h 15m
2026-05-24 THY99D MIA → IST May 24, 03:15 UTCMay 24, 13:55 UTC10h 40m
2026-05-23 THY77J IST → MIA May 23, 13:05 UTCMay 24, 00:40 UTC11h 36m
2026-05-23 THY8XS IST → CDG May 23, 08:45 UTCMay 23, 09:35 UTC50m
2026-05-23 THY8HX ESB → IST May 23, 06:15 UTCMay 23, 07:10 UTC55m
2026-05-22 THY4 JFK → IST May 22, 17:35 UTCMay 23, 01:55 UTC8h 20m
2026-05-22 THY3 IST → JFK May 22, 04:55 UTCMay 22, 14:40 UTC9h 45m
2026-05-21 THY27 PVG → IST May 21, 16:15 UTCMay 22, 00:55 UTC8h 40m
2026-05-21 THY27 PVG → IST May 21, 00:20 UTCMay 22, 00:15 UTC23h 55m
2026-05-20 THY26 IST → PVG May 20, 23:45 UTCMay 21, 20:35 UTC20h 50m
2026-05-20 THY26 IST → PVG May 20, 22:55 UTCMay 20, 23:05 UTC10m
2026-05-20 THY10 LAX → IST May 20, 03:30 UTCMay 20, 15:10 UTC11h 41m
2026-05-19 THY9 IST → LAX May 19, 12:05 UTCMay 20, 00:45 UTC12h 40m
2026-05-18 THY89 PEK → IST May 18, 23:45 UTCMay 19, 00:55 UTC1h 10m
2026-05-18 THY89 PEK → IST May 18, 16:20 UTCMay 18, 16:30 UTC10m
2026-05-18 THY88 IST → PEK May 18, 06:40 UTCMay 18, 07:00 UTC20m
2026-05-17 THY88 IST → PEK May 17, 23:40 UTCMay 18, 00:45 UTC1h 5m
2026-05-17 THY10 LAX → IST May 17, 03:30 UTCMay 17, 15:50 UTC12h 20m
2026-05-16 THY9 IST → LAX May 16, 18:25 UTCMay 17, 00:50 UTC6h 25m
2026-05-16 THY9 IST → LAX May 16, 12:05 UTCMay 16, 14:35 UTC2h 30m
2026-05-15 THY199 HND → IST May 15, 13:35 UTCMay 15, 15:15 UTC1h 39m
2026-05-15 THY198 IST → HND May 15, 00:55 UTCMay 15, 11:05 UTC10h 10m
2026-05-14 THY3RU CMN → IST May 14, 16:55 UTCMay 14, 20:00 UTC3h 5m
2026-05-14 THY5RM IST → CMN May 14, 09:30 UTCMay 14, 14:10 UTC4h 40m
2026-05-13 THY89 PEK → IST May 13, 23:10 UTCMay 14, 00:55 UTC1h 45m
2026-05-13 THY89 PEK → IST May 13, 00:25 UTCMay 14, 00:15 UTC23h 50m
2026-05-13 THY88 IST → PEK May 13, 00:00 UTCMay 13, 01:00 UTC1h 0m
2026-05-12 THY10 LAX → IST May 12, 03:45 UTCMay 12, 15:40 UTC11h 55m
2026-05-11 THY9 IST → LAX May 11, 12:00 UTCMay 11, 22:35 UTC10h 35m
2026-05-10 THY89 PEK → IST May 10, 23:25 UTCMay 11, 00:40 UTC1h 15m
2026-05-09 THY91 ICN → IST May 9, 14:30 UTCMay 10, 00:15 UTC9h 45m
2026-05-09 THY90 IST → ICN May 9, 08:20 UTCMay 9, 08:40 UTC20m
2026-05-08 THY90 IST → ICN May 8, 23:20 UTCMay 9, 07:20 UTC8h 0m
2026-05-08 THY3RU CMN → IST May 8, 16:25 UTCMay 8, 19:45 UTC3h 20m

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

Mode-S 4BA949 frequently asked

What is Mode-S code 4BA949?
4BA949 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JJI.
Where is Mode-S 4BA949 registered?
Mode-S code 4BA949 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA949 broadcasting right now?
Yes. Mode-S 4BA949 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA949, octal 22724511, decimal 4,958,537.
What flights does 4BA949 operate?
Mode-S 4BA949 has broadcast 20 distinct callsigns, including THY73, THY89, THY1, THY9, THY8.