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sensors Mode-S transponder

4B9E4A

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-GRJ · BOEING 737 MAX 8

Hex
4B9E4A
Octal
22717112
Decimal
4,955,722
Country
TR
Tail
TC-GRJ
Type
B38M
Broadcasting now · callsign STW371 · 8,625 ft
Flights observed
332
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 22:30 UTC

Current position

4B9E4A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B9E4A 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
STW173 South West Air Corporation 24 2026-07-17
STW083 South West Air Corporation 21 2026-07-23
STW123 South West Air Corporation 19 2026-07-22
STW085 South West Air Corporation 18 2026-07-17
STW283 South West Air Corporation 16 2026-07-26
STW174 - 16 2026-07-13
STW171 - 16 2026-07-20
STW086 - 16 2026-07-22
STW358 - 15 2026-07-05
STW063 South West Air Corporation 15 2026-07-25
STW1085 South West Air Corporation 14 2026-04-22
STW322 - 13 2026-07-16
STW172 South West Air Corporation 11 2026-07-26
STW1086 South West Air Corporation 11 2026-04-20
STW357 - 10 2026-07-04
STW124 South West Air Corporation 10 2026-06-09
STW081 South West Air Corporation 10 2026-07-26
STW084 - 8 2026-07-11
STW384 South West Air Corporation 7 2026-06-21
STW383 South West Air Corporation 6 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 STW172 SVO → DLM Jul 26, 22:15 UTCJul 26, 22:30 UTC15m
2026-07-26 STW081 IST → SVO Jul 26, 17:15 UTCJul 26, 19:45 UTC2h 30m
2026-07-26 STW283 AYT → ZIA Jul 26, 06:30 UTCJul 26, 15:05 UTC8h 36m
2026-07-26 STW064 TJM → AYT Jul 26, 03:00 UTCJul 26, 03:35 UTC35m
2026-07-25 STW063 AYT → TJM Jul 25, 16:35 UTCJul 25, 18:15 UTC1h 40m
2026-07-25 STW360 - Jul 25, 11:30 UTCJul 25, 14:05 UTC2h 35m
2026-07-25 STW360 GSV → GSV Jul 25, 09:05 UTCJul 25, 09:15 UTC10m
2026-07-25 STW359 - Jul 25, 04:25 UTCJul 25, 06:05 UTC1h 40m
2026-07-24 STW372 KUF → AYT Jul 24, 23:05 UTCJul 24, 23:30 UTC25m
2026-07-24 STW371 AYT → KUF Jul 24, 14:30 UTCJul 24, 16:15 UTC1h 45m
2026-07-24 STW198 AER → AYT Jul 24, 04:40 UTCJul 24, 09:15 UTC4h 35m
2026-07-23 STW083 IST → SVO Jul 23, 17:20 UTCJul 24, 03:15 UTC9h 55m
2026-07-23 STW127 - Jul 23, 06:40 UTCJul 23, 15:30 UTC8h 50m
2026-07-22 STW123 IST → ZIA Jul 22, 18:30 UTCJul 23, 03:10 UTC8h 40m
2026-07-22 STW086 - Jul 22, 13:45 UTCJul 22, 16:05 UTC2h 20m
2026-07-21 STW172 SVO → DLM Jul 21, 22:45 UTCJul 22, 02:25 UTC3h 40m
2026-07-21 STW083 - Jul 21, 17:10 UTCJul 21, 19:30 UTC2h 20m
2026-07-21 STW283 AYT → ZIA Jul 21, 06:20 UTCJul 21, 15:00 UTC8h 40m
2026-07-20 STW284 ZIA → AYT Jul 20, 18:30 UTCJul 21, 03:45 UTC9h 14m
2026-07-20 STW086 - Jul 20, 13:35 UTCJul 20, 16:05 UTC2h 30m
2026-07-20 STW086 - Jul 20, 12:40 UTCJul 20, 12:55 UTC15m
2026-07-20 STW171 - Jul 20, 06:45 UTCJul 20, 09:30 UTC2h 45m
2026-07-19 STW172 - Jul 19, 19:15 UTCJul 20, 03:40 UTC8h 25m
2026-07-19 STW283 - Jul 19, 06:35 UTCJul 19, 16:25 UTC9h 50m
2026-07-18 STW123 - Jul 18, 18:35 UTCJul 19, 03:25 UTC8h 50m
2026-07-18 STW171 - Jul 18, 06:35 UTCJul 18, 15:55 UTC9h 20m
2026-07-18 STW172 - Jul 18, 00:45 UTCJul 18, 02:40 UTC1h 55m
2026-07-17 STW085 IST → SVO Jul 17, 20:44 UTCJul 17, 20:55 UTC10m
2026-07-17 STW085 IST → SVO Jul 17, 17:30 UTCJul 17, 19:09 UTC1h 40m
2026-07-17 STW086 - Jul 17, 13:15 UTCJul 17, 15:44 UTC2h 30m
2026-07-17 STW173 AYT → SVO Jul 17, 06:45 UTCJul 17, 09:55 UTC3h 10m
2026-07-16 STW063 AYT → AYT Jul 16, 16:49 UTCJul 17, 03:39 UTC10h 50m
2026-07-16 STW322 - Jul 16, 04:35 UTCJul 16, 09:35 UTC5h 0m
2026-07-15 STW123 - Jul 15, 18:40 UTCJul 16, 03:25 UTC8h 45m
2026-07-15 STW171 - Jul 15, 06:45 UTCJul 15, 15:30 UTC8h 45m
2026-07-14 STW172 - Jul 14, 23:20 UTCJul 15, 02:10 UTC2h 50m
2026-07-14 STW083 - Jul 14, 17:30 UTCJul 14, 19:55 UTC2h 25m
2026-07-14 STW283 - Jul 14, 06:30 UTCJul 14, 16:05 UTC9h 35m
2026-07-14 STW064 - Jul 14, 03:25 UTCJul 14, 03:50 UTC25m
2026-07-13 STW063 - Jul 13, 16:35 UTCJul 13, 20:05 UTC3h 30m
2026-07-13 STW063 AYT → AYT Jul 13, 16:10 UTCJul 13, 16:15 UTC5m
2026-07-13 STW174 - Jul 13, 01:25 UTCJul 13, 03:45 UTC2h 20m
2026-07-12 STW081 - Jul 12, 21:30 UTCJul 12, 21:45 UTC15m
2026-07-12 STW081 - Jul 12, 18:15 UTCJul 12, 20:45 UTC2h 30m
2026-07-12 STW283 - Jul 12, 06:25 UTCJul 12, 16:30 UTC10h 5m
2026-07-11 STW123 - Jul 11, 18:30 UTCJul 12, 03:45 UTC9h 15m
2026-07-11 STW084 - Jul 11, 13:10 UTCJul 11, 15:30 UTC2h 20m
2026-07-11 STW171 - Jul 11, 06:30 UTCJul 11, 09:25 UTC2h 55m
2026-07-10 STW085 - Jul 10, 18:25 UTCJul 11, 03:35 UTC9h 10m
2026-07-10 STW173 - Jul 10, 06:55 UTCJul 10, 16:55 UTC10h 0m

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

Mode-S 4B9E4A frequently asked

What is Mode-S code 4B9E4A?
4B9E4A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GRJ.
Where is Mode-S 4B9E4A registered?
Mode-S code 4B9E4A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9E4A broadcasting right now?
Yes. Mode-S 4B9E4A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9E4A, octal 22717112, decimal 4,955,722.
What flights does 4B9E4A operate?
Mode-S 4B9E4A has broadcast 20 distinct callsigns, including STW173, STW083, STW123, STW085, STW283.