sensors Mode-S transponder

4BA9C1

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JNA · AIRBUS A-330-200

Hex
4BA9C1
Octal
22724701
Decimal
4,958,657
Country
TR
Tail
TC-JNA
Type
A332
No current signal · last broadcast 2h ago
Flights observed
120
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BA9C1.

Country allocation

The ICAO 24-bit address 4BA9C1 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
2026-05-30 THY371 TAS → IST May 30, 02:10 UTCMay 30, 02:40 UTC30m
2026-05-29 THY370 IAS → TAS May 29, 15:45 UTCMay 29, 17:40 UTC1h 55m
2026-05-27 THY49T HAM → IST May 27, 17:25 UTCMay 27, 20:00 UTC2h 35m
2026-05-27 THY2NZ IST → HAM May 27, 12:55 UTCMay 27, 15:40 UTC2h 45m
2026-05-26 THY3VM ADA → SAW May 26, 23:19 UTCMay 27, 02:29 UTC3h 10m
2026-05-26 THY4HA ESB → IST May 26, 18:10 UTCMay 26, 21:09 UTC3h 0m
2026-05-25 THY3VM ADA → SAW May 25, 23:10 UTCMay 26, 02:10 UTC3h 0m
2026-05-25 THY4HA ESB → IST May 25, 18:05 UTCMay 25, 21:04 UTC2h 59m
2026-05-24 THY3EG AYT → VKO May 24, 17:10 UTCMay 24, 19:45 UTC2h 35m
2026-05-24 THY6MF IST → DUS May 24, 12:50 UTCMay 24, 15:20 UTC2h 30m
2026-05-24 THY707 KBL → IST May 24, 09:50 UTCMay 24, 10:05 UTC15m
2026-05-24 THY707 KBL → IST May 24, 00:30 UTCMay 24, 09:05 UTC8h 35m
2026-05-23 THY3VD - May 23, 16:40 UTCMay 23, 20:35 UTC3h 55m
2026-05-23 THY1PY IST → DUB May 23, 10:40 UTCMay 23, 14:25 UTC3h 45m
2026-05-22 THY3VM ADA → SAW May 22, 23:30 UTCMay 23, 02:35 UTC3h 4m
2026-05-22 THY4HA ESB → IST May 22, 18:15 UTCMay 22, 21:30 UTC3h 15m
2026-05-22 THY846 IST → DAM May 22, 05:00 UTCMay 22, 10:20 UTC5h 19m
2026-05-22 THY371 TAS → IST May 22, 02:20 UTCMay 22, 02:30 UTC10m
2026-05-21 THY371 TAS → IST May 21, 16:45 UTCMay 22, 01:35 UTC8h 50m
2026-05-21 THY370 IAS → TAS May 21, 15:55 UTCMay 21, 16:05 UTC10m
2026-05-21 THY2JT FCO → IST May 21, 10:00 UTCMay 21, 12:05 UTC2h 5m
2026-05-21 THY6AG IST → FCO May 21, 05:50 UTCMay 21, 07:40 UTC1h 50m
2026-05-15 THY5353 - May 15, 19:25 UTCMay 16, 04:05 UTC8h 40m
2026-05-15 THY4AX CDG → IST May 15, 05:40 UTCMay 15, 08:15 UTC2h 35m
2026-05-14 THY8WM IST → ESB May 14, 17:15 UTCMay 14, 20:20 UTC3h 5m
2026-05-14 THY9UT IST → BUD May 14, 13:15 UTCMay 14, 13:50 UTC35m
2026-05-14 THY4QS IST → HTY May 14, 10:50 UTCMay 14, 11:30 UTC40m
2026-05-13 THY37R IST → ABV May 13, 12:35 UTCMay 14, 04:15 UTC15h 40m
2026-05-12 THY1SW IST → VKO May 12, 23:55 UTCMay 13, 05:35 UTC5h 40m
2026-05-12 THY4RC VKO → IST May 12, 11:05 UTCMay 12, 12:50 UTC1h 45m
2026-05-12 THY1BX IST → VKO May 12, 04:55 UTCMay 12, 07:30 UTC2h 35m
2026-05-11 THY4HA ESB → IST May 11, 17:50 UTCMay 11, 20:40 UTC2h 50m
2026-05-11 THY6GF AGP → IST May 11, 11:00 UTCMay 11, 14:05 UTC3h 5m
2026-05-11 THY1UC PMO → IST May 11, 04:45 UTCMay 11, 09:05 UTC4h 20m
2026-05-10 THY4HA ESB → IST May 10, 17:59 UTCMay 11, 02:00 UTC8h 0m
2026-05-10 THY847 DAM → IST May 10, 04:50 UTCMay 10, 09:35 UTC4h 45m
2026-05-09 THY6MG BGG → IST May 9, 19:30 UTCMay 9, 21:34 UTC2h 5m
2026-05-09 THY3NV IST → FRA May 9, 13:05 UTCMay 9, 15:40 UTC2h 35m
2026-05-09 THY847 DAM → IST May 9, 05:25 UTCMay 9, 10:05 UTC4h 40m
2026-05-08 THY4HA ESB → IST May 8, 18:00 UTCMay 9, 02:05 UTC8h 5m
2026-05-08 THY847 DAM → IST May 8, 05:54 UTCMay 8, 09:44 UTC3h 50m
2026-05-07 THY8DP STR → VKO May 7, 17:00 UTCMay 7, 19:35 UTC2h 35m
2026-05-07 THY7AU IST → AMS May 7, 12:15 UTCMay 7, 15:10 UTC2h 55m
2026-05-07 THY369 TAS → IST May 7, 00:15 UTCMay 7, 08:30 UTC8h 15m
2026-05-06 THY5MH IST → VAN May 6, 17:40 UTCMay 6, 19:40 UTC2h 0m
2026-05-06 THY3ZA IST → BER May 6, 13:35 UTCMay 6, 15:50 UTC2h 15m
2026-05-06 THY85T NBO → IST May 6, 04:35 UTCMay 6, 06:00 UTC1h 25m
2026-05-05 THY4HC IST → NBO May 5, 22:01 UTCMay 5, 22:15 UTC15m
2026-05-05 THY4HC IST → NBO May 5, 16:15 UTCMay 5, 17:50 UTC1h 35m
2026-05-05 THY5QF ECN → IST May 5, 07:40 UTCMay 5, 09:20 UTC1h 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-JNA page for operator, model, and routing details .

Mode-S 4BA9C1 frequently asked

What is Mode-S code 4BA9C1?
4BA9C1 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JNA.
Where is Mode-S 4BA9C1 registered?
Mode-S code 4BA9C1 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9C1 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9C1, octal 22724701, decimal 4,958,657.
What flights does 4BA9C1 operate?
Mode-S 4BA9C1 has broadcast 20 distinct callsigns, including THY4HA, THY707, THY6MF, THY3EG, THY37R.