Apparatus

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sensors Mode-S transponder

4B9E44

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-GRD · AIRBUS A-321

Hex
4B9E44
Octal
22717104
Decimal
4,955,716
Country
TR
Tail
TC-GRD
Type
A321
No current signal · last broadcast 1h ago
Flights observed
251
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4B9E44.

Country allocation

The ICAO 24-bit address 4B9E44 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
STW133 - 71 2026-07-13
STW134 - 46 2026-06-25
STW097 - 37 2026-07-14
STW098 - 29 2026-07-12
STW135 South West Air Corporation 6 2026-05-14
STW113 South West Air Corporation 5 2026-04-19
STW063 - 5 2026-07-06
STW141 South West Air Corporation 4 2026-05-27
STW114 South West Air Corporation 4 2026-04-19
STW064 - 4 2026-07-07
STW039 - 4 2026-07-10
STW322 - 3 2026-07-02
STW126 South West Air Corporation 3 2026-04-15
STW125 South West Air Corporation 3 2026-04-21
STW001 - 3 2026-04-16
STW357 - 2 2026-07-07
STW321 - 2 2026-07-02
STW174 - 2 2026-06-29
STW136 South West Air Corporation 2 2026-05-14
STW1203 - 2 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 STW097 - Jul 14, 05:10 UTCJul 14, 06:55 UTC1h 45m
2026-07-13 STW133 - Jul 13, 13:40 UTCJul 14, 00:20 UTC10h 40m
2026-07-12 STW133 - Jul 12, 13:35 UTCJul 12, 15:20 UTC1h 45m
2026-07-12 STW098 AYT → AYT Jul 12, 05:01 UTCJul 12, 10:55 UTC5h 55m
2026-07-11 STW133 - Jul 11, 13:55 UTCJul 12, 00:50 UTC10h 55m
2026-07-11 STW097 - Jul 11, 04:15 UTCJul 11, 09:55 UTC5h 40m
2026-07-10 STW039 - Jul 10, 14:50 UTCJul 11, 00:35 UTC9h 45m
2026-07-10 STW098 - Jul 10, 10:30 UTCJul 10, 10:50 UTC20m
2026-07-10 STW097 - Jul 10, 05:25 UTCJul 10, 09:35 UTC4h 10m
2026-07-09 STW039 - Jul 9, 15:05 UTCJul 10, 00:15 UTC9h 10m
2026-07-09 STW097 - Jul 9, 05:30 UTCJul 9, 10:55 UTC5h 25m
2026-07-08 STW133 - Jul 8, 13:40 UTCJul 8, 15:25 UTC1h 45m
2026-07-08 STW098 - Jul 8, 10:05 UTCJul 8, 10:25 UTC20m
2026-07-08 STW097 - Jul 8, 05:05 UTCJul 8, 06:50 UTC1h 45m
2026-07-08 STW358 - Jul 8, 01:40 UTCJul 8, 02:05 UTC25m
2026-07-07 STW357 - Jul 7, 18:00 UTCJul 7, 18:45 UTC45m
2026-07-07 STW357 - Jul 7, 17:05 UTCJul 7, 17:30 UTC25m
2026-07-07 STW097 - Jul 7, 05:15 UTCJul 7, 10:30 UTC5h 15m
2026-07-07 STW064 - Jul 7, 03:20 UTCJul 7, 03:45 UTC25m
2026-07-06 STW063 - Jul 6, 16:35 UTCJul 6, 18:20 UTC1h 45m
2026-07-05 STW063 - Jul 5, 14:30 UTCJul 6, 01:15 UTC10h 45m
2026-07-05 STW098 - Jul 5, 10:20 UTCJul 5, 10:40 UTC20m
2026-07-05 STW097 - Jul 5, 05:00 UTCJul 5, 05:20 UTC20m
2026-07-05 STW064 - Jul 5, 02:45 UTCJul 5, 03:15 UTC30m
2026-07-04 STW063 - Jul 4, 16:20 UTCJul 5, 02:05 UTC9h 45m
2026-07-04 STW098 - Jul 4, 09:00 UTCJul 4, 09:35 UTC35m
2026-07-04 STW097 - Jul 4, 04:00 UTCJul 4, 04:20 UTC20m
2026-07-03 STW372 - Jul 3, 23:35 UTCJul 4, 00:20 UTC45m
2026-07-03 STW371 - Jul 3, 14:50 UTCJul 3, 16:25 UTC1h 35m
2026-07-03 STW097 - Jul 3, 07:50 UTCJul 3, 09:30 UTC1h 40m
2026-07-03 STW064 - Jul 3, 06:10 UTCJul 3, 06:25 UTC15m
2026-07-02 STW063 - Jul 2, 19:55 UTCJul 2, 21:40 UTC1h 45m
2026-07-02 STW322 - Jul 2, 17:10 UTCJul 2, 18:20 UTC1h 10m
2026-07-02 STW321 - Jul 2, 12:50 UTCJul 2, 14:20 UTC1h 30m
2026-07-02 STW097 - Jul 2, 05:25 UTCJul 2, 11:10 UTC5h 45m
2026-07-02 STW064 - Jul 2, 02:45 UTCJul 2, 03:15 UTC30m
2026-07-01 STW063 - Jul 1, 16:15 UTCJul 2, 02:10 UTC9h 55m
2026-07-01 STW097 - Jul 1, 06:00 UTCJul 1, 10:30 UTC4h 30m
2026-07-01 STW097 - Jul 1, 05:15 UTCJul 1, 05:30 UTC15m
2026-06-30 STW133 - Jun 30, 13:50 UTCJul 1, 00:10 UTC10h 20m
2026-06-29 STW133 - Jun 29, 14:29 UTCJun 30, 09:15 UTC18h 46m
2026-06-29 STW133 - Jun 29, 13:39 UTCJun 29, 13:59 UTC20m
2026-06-29 STW174 - Jun 29, 09:20 UTCJun 29, 09:54 UTC35m
2026-06-29 STW174 SVO → SVO Jun 29, 08:14 UTCJun 29, 08:35 UTC20m
2026-06-29 STW173 - Jun 29, 02:25 UTCJun 29, 04:45 UTC2h 20m
2026-06-28 STW133 - Jun 28, 13:29 UTCJun 28, 15:20 UTC1h 50m
2026-06-28 STW098 - Jun 28, 05:04 UTCJun 28, 10:24 UTC5h 20m
2026-06-27 STW133 - Jun 27, 14:09 UTCJun 27, 16:00 UTC1h 50m
2026-06-27 STW098 - Jun 27, 04:19 UTCJun 27, 09:50 UTC5h 30m
2026-06-26 STW133 - Jun 26, 13:45 UTCJun 26, 15:34 UTC1h 50m

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

Mode-S 4B9E44 frequently asked

What is Mode-S code 4B9E44?
4B9E44 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GRD.
Where is Mode-S 4B9E44 registered?
Mode-S code 4B9E44 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9E44 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9E44, octal 22717104, decimal 4,955,716.
What flights does 4B9E44 operate?
Mode-S 4B9E44 has broadcast 20 distinct callsigns, including STW133, STW134, STW097, STW098, STW135.