Apparatus

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sensors Mode-S transponder

4B9E4F

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-GRO · BOEING 737 MAX 8

Hex
4B9E4F
Octal
22717117
Decimal
4,955,727
Country
TR
Tail
TC-GRO
Type
B38M
Broadcasting now · callsign STW358 · 350 ft
Flights observed
173
Distinct callsigns
20
Country
TR
Last broadcast
4h ago

Current position

4B9E4F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B9E4F 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
STW097 South West Air Corporation 14 2026-05-29
STW358 - 13 2026-05-29
STW141 South West Air Corporation 11 2026-04-22
STW063 South West Air Corporation 11 2026-05-28
STW142 South West Air Corporation 10 2026-05-18
STW098 South West Air Corporation 10 2026-05-29
STW357 South West Air Corporation 9 2026-05-29
STW064 South West Air Corporation 9 2026-05-29
STW197 South West Air Corporation 8 2026-05-26
STW198 South West Air Corporation 6 2026-05-26
STW322 South West Air Corporation 5 2026-05-20
STW321 South West Air Corporation 5 2026-05-20
STW1203 - 5 2026-04-21
STW247 - 4 2026-04-18
STW173 South West Air Corporation 4 2026-05-14
STW168 South West Air Corporation 4 2026-04-19
STW1226 - 4 2026-05-07
STW1225 - 4 2026-05-06
STW1204 - 4 2026-04-19
STW248 - 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 STW358 - May 29, 22:10 UTCMay 29, 22:15 UTC5m
2026-05-29 STW357 AYT → GSV May 29, 17:05 UTCMay 29, 18:55 UTC1h 50m
2026-05-29 STW098 MRV → AYT May 29, 10:35 UTCMay 29, 10:45 UTC10m
2026-05-29 STW097 AYT → MRV May 29, 05:30 UTCMay 29, 05:55 UTC25m
2026-05-29 STW064 TJM → AYT May 29, 03:15 UTCMay 29, 03:40 UTC25m
2026-05-28 STW063 AYT → TJM May 28, 16:25 UTCMay 29, 02:35 UTC10h 10m
2026-05-28 STW098 MRV → AYT May 28, 10:40 UTCMay 28, 10:55 UTC15m
2026-05-28 STW097 AYT → MRV May 28, 05:20 UTCMay 28, 05:45 UTC25m
2026-05-27 STW3273 - May 27, 13:50 UTCMay 27, 23:55 UTC10h 5m
2026-05-27 STW098 MRV → AYT May 27, 10:15 UTCMay 27, 10:40 UTC25m
2026-05-27 STW097 AYT → MRV May 27, 05:09 UTCMay 27, 05:19 UTC10m
2026-05-27 STW358 - May 27, 01:19 UTCMay 27, 01:39 UTC20m
2026-05-26 STW357 AYT → GSV May 26, 17:15 UTCMay 26, 19:20 UTC2h 5m
2026-05-26 STW198 AER → AYT May 26, 11:15 UTCMay 26, 11:39 UTC25m
2026-05-26 STW197 AYT → AER May 26, 06:34 UTCMay 26, 06:44 UTC10m
2026-05-26 STW064 TJM → AYT May 26, 03:30 UTCMay 26, 03:55 UTC25m
2026-05-25 STW063 AYT → TJM May 25, 16:45 UTCMay 26, 02:44 UTC10h 0m
2026-05-24 STW063 AYT → TJM May 24, 14:40 UTCMay 24, 16:35 UTC1h 55m
2026-05-24 STW198 AER → AYT May 24, 10:15 UTCMay 24, 10:35 UTC20m
2026-05-24 STW197 AYT → AER May 24, 06:25 UTCMay 24, 06:35 UTC10m
2026-05-24 STW064 TJM → AYT May 24, 03:20 UTCMay 24, 03:50 UTC30m
2026-05-23 STW063 AYT → TJM May 23, 16:40 UTCMay 24, 02:40 UTC10h 1m
2026-05-23 STW098 MRV → AYT May 23, 09:30 UTCMay 23, 09:40 UTC10m
2026-05-23 STW097 AYT → MRV May 23, 04:00 UTCMay 23, 04:15 UTC15m
2026-05-23 STW358 - May 23, 01:30 UTCMay 23, 01:55 UTC25m
2026-05-22 STW357 AYT → GSV May 22, 17:20 UTCMay 23, 00:50 UTC7h 30m
2026-05-22 STW098 MRV → AYT May 22, 10:15 UTCMay 22, 10:30 UTC15m
2026-05-22 STW064 TJM → AYT May 22, 03:15 UTCMay 22, 03:35 UTC20m
2026-05-21 STW063 AYT → TJM May 21, 16:45 UTCMay 22, 02:35 UTC9h 50m
2026-05-21 STW097 AYT → MRV May 21, 05:15 UTCMay 21, 05:25 UTC10m
2026-05-20 STW322 KRR → AYT May 20, 18:55 UTCMay 20, 19:30 UTC35m
2026-05-20 STW321 AYT → KRR May 20, 14:10 UTCMay 20, 15:40 UTC1h 30m
2026-05-20 STW097 AYT → MRV May 20, 05:05 UTCMay 20, 06:00 UTC55m
2026-05-20 STW358 - May 20, 01:25 UTCMay 20, 01:45 UTC20m
2026-05-19 STW357 AYT → GSV May 19, 17:15 UTCMay 20, 00:35 UTC7h 20m
2026-05-19 STW197 AYT → AER May 19, 06:25 UTCMay 19, 06:40 UTC15m
2026-05-19 STW064 TJM → AYT May 19, 03:25 UTCMay 19, 03:45 UTC20m
2026-05-18 STW063 AYT → TJM May 18, 16:35 UTCMay 19, 02:45 UTC10h 9m
2026-05-18 STW142 SVO → AYT May 18, 04:05 UTCMay 18, 13:35 UTC9h 30m
2026-05-17 STW322 KRR → AYT May 17, 10:05 UTCMay 17, 10:35 UTC30m
2026-05-17 STW321 AYT → KRR May 17, 05:35 UTCMay 17, 05:45 UTC10m
2026-05-16 STW383 AYT → ARH May 16, 14:25 UTCMay 17, 02:15 UTC11h 49m
2026-05-16 STW098 MRV → AYT May 16, 11:51 UTCMay 16, 12:16 UTC25m
2026-05-16 STW097 AYT → MRV May 16, 06:31 UTCMay 16, 06:41 UTC10m
2026-05-16 STW358 - May 16, 01:40 UTCMay 16, 01:55 UTC15m
2026-05-16 STW358 - May 16, 00:00 UTCMay 16, 00:55 UTC55m
2026-05-15 STW357 AYT → GSV May 15, 17:20 UTCMay 15, 19:55 UTC2h 35m
2026-05-15 STW097 AYT → MRV May 15, 05:05 UTCMay 15, 05:20 UTC15m
2026-05-14 STW083 IST → SVO May 14, 17:45 UTCMay 15, 03:05 UTC9h 20m
2026-05-14 STW173 AYT → SVO May 14, 06:50 UTCMay 14, 15:20 UTC8h 30m

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

Mode-S 4B9E4F frequently asked

What is Mode-S code 4B9E4F?
4B9E4F is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GRO.
Where is Mode-S 4B9E4F registered?
Mode-S code 4B9E4F is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9E4F broadcasting right now?
Yes. Mode-S 4B9E4F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9E4F, octal 22717117, decimal 4,955,727.
What flights does 4B9E4F operate?
Mode-S 4B9E4F has broadcast 20 distinct callsigns, including STW097, STW358, STW141, STW063, STW142.