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sensors Mode-S transponder

4BAB2D

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JYM · BOEING 737-900

Hex
4BAB2D
Octal
22725455
Decimal
4,959,021
Country
TR
Tail
TC-JYM
Type
B739
Broadcasting now · callsign THY1GN · 35,000 ft
Flights observed
381
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:15 UTC

Current position

4BAB2D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BAB2D 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
THY7NB Turkish Airlines 20 2026-07-26
THY6AE Turkish Airlines 19 2026-07-24
THY3260 Turkish Airlines 17 2026-07-24
THY1MU - 15 2026-07-25
THY3250 Turkish Airlines 13 2026-07-26
THY9WY Turkish Airlines 12 2026-07-21
THY8VC - 12 2026-07-21
THY4VB - 11 2026-07-21
THY4FU Turkish Airlines 11 2026-07-26
THY9LR - 9 2026-07-16
THY3252 - 9 2026-07-24
THY3263 - 8 2026-07-25
THY3253 Turkish Airlines 8 2026-07-24
THY3262 - 7 2026-07-18
THY3261 Turkish Airlines 7 2026-07-24
THY3251 - 7 2026-07-19
THY3JW - 5 2026-07-16
THY3BJ Turkish Airlines 5 2026-05-09
THY9DX - 3 2026-07-16
THY8RC Turkish Airlines 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY3250 SAW → KSY Jul 26, 18:50 UTCJul 26, 20:15 UTC1h 25m
2026-07-26 THY4FU PMO → IST Jul 26, 15:35 UTCJul 26, 16:25 UTC50m
2026-07-26 THY7NB IST → IST Jul 26, 09:50 UTCJul 26, 10:50 UTC1h 0m
2026-07-26 THY5CJ NUE → IST Jul 26, 06:55 UTCJul 26, 07:55 UTC1h 0m
2026-07-25 THY6FV ASR → IST Jul 25, 23:05 UTCJul 26, 02:30 UTC3h 25m
2026-07-25 THY3TS - Jul 25, 19:25 UTCJul 25, 20:00 UTC35m
2026-07-25 THY5KA IST → BER Jul 25, 17:50 UTCJul 25, 18:20 UTC30m
2026-07-25 THY8RC IKA → IST Jul 25, 11:00 UTCJul 25, 11:45 UTC45m
2026-07-25 THY1MU - Jul 25, 07:55 UTCJul 25, 08:55 UTC1h 0m
2026-07-25 THY3263 - Jul 25, 01:20 UTCJul 25, 06:10 UTC4h 50m
2026-07-24 THY3261 IST → MAD Jul 24, 23:25 UTCJul 24, 23:50 UTC25m
2026-07-24 THY3260 ADB → SAW Jul 24, 19:05 UTCJul 24, 20:30 UTC1h 25m
2026-07-24 THY6AE BEY → IST Jul 24, 16:50 UTCJul 24, 17:50 UTC1h 0m
2026-07-24 THY8CH DLM → IST Jul 24, 13:10 UTCJul 24, 14:10 UTC1h 0m
2026-07-24 THY1MA MUC → IST Jul 24, 11:00 UTCJul 24, 11:40 UTC40m
2026-07-24 THY1MU - Jul 24, 07:30 UTCJul 24, 08:30 UTC1h 0m
2026-07-24 THY3253 AYT → CDG Jul 24, 04:50 UTCJul 24, 05:40 UTC50m
2026-07-24 THY3252 - Jul 24, 01:10 UTCJul 24, 02:35 UTC1h 25m
2026-07-23 THY3250 SAW → KSY Jul 23, 18:50 UTCJul 23, 23:25 UTC4h 35m
2026-07-23 THY4FU - Jul 23, 15:35 UTCJul 23, 16:35 UTC1h 0m
2026-07-23 THY7NB IST → IST Jul 23, 09:45 UTCJul 23, 10:40 UTC55m
2026-07-22 THY3261 IST → MAD Jul 22, 23:20 UTCJul 22, 23:35 UTC15m
2026-07-22 THY3260 ADB → SAW Jul 22, 19:20 UTCJul 22, 20:40 UTC1h 20m
2026-07-22 THY3252 - Jul 22, 01:00 UTCJul 22, 05:25 UTC4h 25m
2026-07-21 THY8VC - Jul 21, 18:25 UTCJul 21, 19:20 UTC55m
2026-07-21 THY9WY DLM → IST Jul 21, 15:40 UTCJul 21, 16:30 UTC50m
2026-07-21 THY4VB - Jul 21, 13:35 UTCJul 21, 14:20 UTC45m
2026-07-21 THY7NB IST → IST Jul 21, 09:45 UTCJul 21, 10:35 UTC50m
2026-07-20 THY3260 - Jul 20, 19:10 UTCJul 20, 23:35 UTC4h 25m
2026-07-20 THY4FU - Jul 20, 15:30 UTCJul 20, 16:20 UTC50m
2026-07-20 THY7NB IST → IST Jul 20, 09:45 UTCJul 20, 10:45 UTC1h 0m
2026-07-20 THY3253 AYT → CDG Jul 20, 01:00 UTCJul 20, 05:40 UTC4h 40m
2026-07-19 THY3251 - Jul 19, 22:35 UTCJul 19, 23:15 UTC40m
2026-07-19 THY3250 - Jul 19, 18:45 UTCJul 19, 20:00 UTC1h 15m
2026-07-18 THY3260 - Jul 18, 19:20 UTCJul 18, 20:45 UTC1h 25m
2026-07-18 THY3263 - Jul 18, 04:25 UTCJul 18, 06:20 UTC1h 55m
2026-07-18 THY3262 - Jul 18, 01:15 UTCJul 18, 02:35 UTC1h 20m
2026-07-17 THY8VC - Jul 17, 18:50 UTCJul 17, 19:45 UTC55m
2026-07-17 THY9WY - Jul 17, 16:00 UTCJul 17, 16:59 UTC1h 0m
2026-07-17 THY4VB - Jul 17, 13:50 UTCJul 17, 14:35 UTC45m
2026-07-17 THY7NB IST → IST Jul 17, 09:40 UTCJul 17, 10:40 UTC1h 0m
2026-07-16 THY3260 AYT → AYT Jul 16, 18:59 UTCJul 16, 23:29 UTC4h 30m
2026-07-16 THY6AE - Jul 16, 16:44 UTCJul 16, 17:40 UTC55m
2026-07-16 THY3JW - Jul 16, 13:54 UTCJul 16, 14:50 UTC55m
2026-07-16 THY9DX - Jul 16, 11:34 UTCJul 16, 12:40 UTC1h 5m
2026-07-16 THY9LR - Jul 16, 05:40 UTCJul 16, 06:30 UTC50m
2026-07-15 THY3250 - Jul 15, 18:30 UTCJul 15, 23:30 UTC5h 0m
2026-07-15 THY4FU - Jul 15, 15:35 UTCJul 15, 16:20 UTC45m
2026-07-15 THY1CB - Jul 15, 12:20 UTCJul 15, 13:10 UTC50m
2026-07-15 THY2522 - Jul 15, 10:15 UTCJul 15, 11:05 UTC50m

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

Mode-S 4BAB2D frequently asked

What is Mode-S code 4BAB2D?
4BAB2D is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JYM.
Where is Mode-S 4BAB2D registered?
Mode-S code 4BAB2D is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAB2D broadcasting right now?
Yes. Mode-S 4BAB2D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAB2D, octal 22725455, decimal 4,959,021.
What flights does 4BAB2D operate?
Mode-S 4BAB2D has broadcast 20 distinct callsigns, including THY7NB, THY6AE, THY3260, THY1MU, THY3250.