Apparatus

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sensors Mode-S transponder

4B9E59

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-GRY · BOEING 777-300

Hex
4B9E59
Octal
22717131
Decimal
4,955,737
Country
TR
Tail
TC-GRY
Type
B773
No current signal · last broadcast 5h ago
Flights observed
112
Distinct callsigns
11
Country
TR
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4B9E59.

Country allocation

The ICAO 24-bit address 4B9E59 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 11 distinct

Callsign Airline Flights Last seen
STW002 - 26 2026-06-01
STW023 - 16 2026-06-02
STW001 - 16 2026-05-29
STW024 South West Air Corporation 13 2026-06-03
STW126 South West Air Corporation 12 2026-05-21
STW125 South West Air Corporation 12 2026-05-29
STW1024 South West Air Corporation 6 2026-06-01
STW142 South West Air Corporation 4 2026-06-02
STW226 South West Air Corporation 3 2026-05-15
STW225 South West Air Corporation 3 2026-05-14
STW5301 South West Air Corporation 1 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 STW5301 AYT → MED Jun 3, 04:45 UTCJun 3, 06:05 UTC1h 20m
2026-06-03 STW024 KZN → AYT Jun 3, 01:00 UTCJun 3, 01:20 UTC20m
2026-06-02 STW023 - Jun 2, 15:30 UTCJun 2, 16:50 UTC1h 20m
2026-06-02 STW142 SVO → AYT Jun 2, 04:10 UTCJun 2, 13:50 UTC9h 40m
2026-06-02 STW024 KZN → AYT Jun 2, 00:45 UTCJun 2, 01:05 UTC20m
2026-06-01 STW023 - Jun 1, 15:35 UTCJun 2, 00:05 UTC8h 30m
2026-06-01 STW002 - Jun 1, 04:40 UTCJun 1, 14:10 UTC9h 30m
2026-06-01 STW1024 KZN → AYT Jun 1, 02:10 UTCJun 1, 02:25 UTC15m
2026-05-31 STW023 - May 31, 16:45 UTCJun 1, 01:25 UTC8h 40m
2026-05-30 STW142 SVO → AYT May 30, 21:00 UTCMay 31, 15:00 UTC18h 0m
2026-05-30 STW142 SVO → AYT May 30, 18:20 UTCMay 31, 15:00 UTC20h 40m
2026-05-30 STW142 SVO → AYT May 30, 18:05 UTCMay 31, 15:00 UTC20h 55m
2026-05-30 STW002 - May 30, 06:50 UTCMay 30, 16:20 UTC9h 30m
2026-05-29 STW125 AYT → SVX May 29, 17:35 UTCMay 29, 18:45 UTC1h 10m
2026-05-29 STW001 - May 29, 05:10 UTCMay 29, 14:25 UTC9h 15m
2026-05-29 STW1024 KZN → AYT May 29, 00:55 UTCMay 29, 01:15 UTC20m
2026-05-28 STW023 - May 28, 15:15 UTCMay 28, 18:20 UTC3h 5m
2026-05-27 STW125 AYT → SVX May 27, 16:15 UTCMay 28, 01:50 UTC9h 35m
2026-05-27 STW002 - May 27, 04:34 UTCMay 27, 14:20 UTC9h 46m
2026-05-26 STW023 - May 26, 15:00 UTCMay 26, 18:19 UTC3h 20m
2026-05-25 STW125 AYT → SVX May 25, 16:10 UTCMay 25, 17:25 UTC1h 15m
2026-05-25 STW002 - May 25, 12:05 UTCMay 25, 14:10 UTC2h 5m
2026-05-25 STW001 - May 25, 04:45 UTCMay 25, 07:05 UTC2h 20m
2026-05-24 STW023 - May 24, 15:05 UTCMay 24, 23:46 UTC8h 41m
2026-05-24 STW024 KZN → AYT May 24, 02:35 UTCMay 24, 02:55 UTC20m
2026-05-23 STW023 - May 23, 17:10 UTCMay 23, 18:20 UTC1h 11m
2026-05-23 STW002 - May 23, 04:30 UTCMay 23, 14:20 UTC9h 50m
2026-05-23 STW024 KZN → AYT May 23, 02:25 UTCMay 23, 02:40 UTC14m
2026-05-22 STW023 - May 22, 16:55 UTCMay 22, 20:05 UTC3h 10m
2026-05-22 STW002 - May 22, 04:45 UTCMay 22, 14:35 UTC9h 50m
2026-05-22 STW1024 KZN → AYT May 22, 00:45 UTCMay 22, 01:00 UTC15m
2026-05-21 STW023 - May 21, 15:10 UTCMay 22, 00:05 UTC8h 55m
2026-05-21 STW126 SVX → AYT May 21, 02:35 UTCMay 21, 02:55 UTC20m
2026-05-20 STW125 AYT → SVX May 20, 16:20 UTCMay 20, 17:50 UTC1h 30m
2026-05-20 STW002 - May 20, 04:20 UTCMay 20, 14:05 UTC9h 46m
2026-05-20 STW024 KZN → AYT May 20, 00:45 UTCMay 20, 01:00 UTC15m
2026-05-19 STW023 - May 19, 15:10 UTCMay 19, 23:05 UTC7h 55m
2026-05-19 STW126 SVX → AYT May 19, 02:45 UTCMay 19, 03:05 UTC20m
2026-05-18 STW125 AYT → SVX May 18, 16:10 UTCMay 19, 02:00 UTC9h 49m
2026-05-18 STW002 - May 18, 04:45 UTCMay 18, 14:20 UTC9h 35m
2026-05-17 STW002 - May 17, 04:30 UTCMay 17, 14:15 UTC9h 45m
2026-05-16 STW001 - May 16, 05:20 UTCMay 16, 15:16 UTC9h 56m
2026-05-16 STW024 KZN → AYT May 16, 03:15 UTCMay 16, 03:40 UTC25m
2026-05-15 STW024 KZN → AYT May 15, 17:45 UTCMay 16, 02:35 UTC8h 50m
2026-05-15 STW001 - May 15, 06:30 UTCMay 15, 16:00 UTC9h 29m
2026-05-15 STW226 SVX → AYT May 15, 04:45 UTCMay 15, 05:00 UTC15m
2026-05-14 STW225 AYT → SVX May 14, 18:05 UTCMay 14, 19:15 UTC1h 10m
2026-05-14 STW002 - May 14, 05:25 UTCMay 14, 14:40 UTC9h 15m
2026-05-14 STW126 SVX → AYT May 14, 03:30 UTCMay 14, 03:50 UTC20m
2026-05-13 STW125 AYT → SVX May 13, 16:10 UTCMay 13, 18:25 UTC2h 15m

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

Mode-S 4B9E59 frequently asked

What is Mode-S code 4B9E59?
4B9E59 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GRY.
Where is Mode-S 4B9E59 registered?
Mode-S code 4B9E59 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9E59 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9E59, octal 22717131, decimal 4,955,737.
What flights does 4B9E59 operate?
Mode-S 4B9E59 has broadcast 11 distinct callsigns, including STW002, STW023, STW001, STW024, STW126.