Apparatus

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sensors Mode-S transponder

4BAB4F

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JZO · BOEING 737-800

Hex
4BAB4F
Octal
22725517
Decimal
4,959,055
Country
TR
Tail
TC-JZO
Type
B738
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
329
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S 4BAB4F.

Country allocation

The ICAO 24-bit address 4BAB4F 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
TKJ1VY - 12 2026-07-04
TKJ9DT - 11 2026-06-08
TKJ29V - 10 2026-07-04
TKJ6QZ Tarkim Havacilik 8 2026-07-23
TKJ53R - 7 2026-07-10
TKJ35V - 7 2026-07-04
TKJ7PM Tarkim Havacilik 6 2026-07-19
TKJ75U - 6 2026-06-18
TKJ4LV - 6 2026-06-30
TKJ9FW - 5 2026-07-12
TKJ8AH - 5 2026-07-12
TKJ6QY - 5 2026-07-02
TKJ63U - 5 2026-06-16
TKJ4188 Tarkim Havacilik 5 2026-06-12
TKJ2XJ Tarkim Havacilik 5 2026-07-20
TKJ2QD - 5 2026-06-26
TKJ23P - 5 2026-07-10
TKJ1ZP Tarkim Havacilik 5 2026-07-25
TKJ1KN Tarkim Havacilik 5 2026-07-24
TKJ9ND - 4 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ5309 ADB → ESB Jul 26, 20:30 UTCJul 26, 21:00 UTC30m
2026-07-26 TKJ5308 ESB → ADB Jul 26, 16:35 UTCJul 26, 19:15 UTC2h 40m
2026-07-26 TKJ870 - Jul 26, 14:15 UTCJul 26, 15:00 UTC45m
2026-07-26 TKJ869 XXX → ECN Jul 26, 12:30 UTCJul 26, 13:05 UTC35m
2026-07-25 TKJ1ZP DUS → ESB Jul 25, 16:25 UTCJul 26, 11:00 UTC18h 36m
2026-07-24 TKJ1KN ESB → DUS Jul 24, 20:30 UTCJul 25, 14:30 UTC18h 0m
2026-07-24 TKJ5308 ESB → ADB Jul 24, 18:40 UTCJul 24, 19:25 UTC45m
2026-07-24 TKJ5GQ AYT → ESB Jul 24, 07:05 UTCJul 24, 07:25 UTC20m
2026-07-23 TKJ6QZ ESB → AYT Jul 23, 16:35 UTCJul 24, 05:45 UTC13h 10m
2026-07-23 TKJ870 - Jul 23, 14:35 UTCJul 23, 15:20 UTC45m
2026-07-23 TKJ869 - Jul 23, 12:30 UTCJul 23, 13:10 UTC40m
2026-07-23 TKJ5VN ESB → AYT Jul 23, 10:35 UTCJul 23, 11:05 UTC30m
2026-07-23 TKJ1ZL - Jul 23, 02:15 UTCJul 23, 02:45 UTC30m
2026-07-22 TKJ4KW - Jul 22, 18:05 UTCJul 22, 22:40 UTC4h 35m
2026-07-22 TKJ5144 - Jul 22, 11:10 UTCJul 22, 16:40 UTC5h 30m
2026-07-21 TKJ29Y AJI → ESB Jul 21, 09:25 UTCJul 21, 11:55 UTC2h 30m
2026-07-20 TKJ97P - Jul 20, 15:10 UTCJul 20, 15:45 UTC35m
2026-07-20 TKJ2XJ ESB → EDO Jul 20, 05:45 UTCJul 20, 14:10 UTC8h 25m
2026-07-19 TKJ63G ESB → AYT Jul 19, 16:55 UTCJul 20, 04:30 UTC11h 35m
2026-07-19 TKJ870 - Jul 19, 14:35 UTCJul 19, 15:35 UTC1h 0m
2026-07-19 TKJ869 - Jul 19, 12:25 UTCJul 19, 13:00 UTC35m
2026-07-19 TKJ5VN - Jul 19, 10:40 UTCJul 19, 11:00 UTC20m
2026-07-19 TKJ7PM DLM → ESB Jul 19, 06:50 UTCJul 19, 07:15 UTC25m
2026-07-18 TKJ9BT OTP → ESB Jul 18, 17:00 UTCJul 19, 05:25 UTC12h 25m
2026-07-18 TKJ4UL ESB → OTP Jul 18, 06:55 UTCJul 18, 15:35 UTC8h 40m
2026-07-18 TKJ6UK - Jul 18, 05:05 UTCJul 18, 05:45 UTC40m
2026-07-18 TKJ3PT - Jul 18, 02:00 UTCJul 18, 02:25 UTC25m
2026-07-17 TKJ29W ESB → DLM Jul 17, 22:20 UTCJul 17, 22:55 UTC35m
2026-07-17 TKJ1ZP - Jul 17, 16:44 UTCJul 17, 19:35 UTC2h 50m
2026-07-17 TKJ1KN - Jul 17, 09:15 UTCJul 17, 14:44 UTC5h 30m
2026-07-16 TKJ9BT OTP → ESB Jul 16, 17:00 UTCJul 17, 08:04 UTC15h 5m
2026-07-16 TKJ4UL ESB → OTP Jul 16, 14:40 UTCJul 16, 15:40 UTC1h 0m
2026-07-12 TKJ8AH - Jul 12, 16:50 UTCJul 12, 18:30 UTC1h 40m
2026-07-12 TKJ9FW - Jul 12, 10:55 UTCJul 12, 15:20 UTC4h 25m
2026-07-12 TKJ3XZ - Jul 12, 06:45 UTCJul 12, 09:30 UTC2h 45m
2026-07-12 TKJ6QZ - Jul 12, 05:01 UTCJul 12, 05:35 UTC35m
2026-07-11 TKJ5309 - Jul 11, 20:30 UTCJul 11, 21:00 UTC30m
2026-07-11 TKJ5308 - Jul 11, 18:50 UTCJul 11, 19:20 UTC30m
2026-07-11 TKJ97P - Jul 11, 15:45 UTCJul 11, 16:15 UTC30m
2026-07-11 TKJ2XJ - Jul 11, 11:50 UTCJul 11, 14:45 UTC2h 55m
2026-07-11 TKJ9NC - Jul 11, 10:00 UTCJul 11, 10:30 UTC30m
2026-07-10 TKJ23P - Jul 10, 19:05 UTCJul 11, 05:31 UTC10h 26m
2026-07-10 TKJ53R - Jul 10, 11:00 UTCJul 10, 17:55 UTC6h 55m
2026-07-10 TKJ2AZ - Jul 10, 06:40 UTCJul 10, 09:45 UTC3h 5m
2026-07-10 TKJ6UK - Jul 10, 05:00 UTCJul 10, 05:35 UTC35m
2026-07-09 TKJ5110 SAW → SSH Jul 9, 14:25 UTCJul 9, 16:55 UTC2h 30m
2026-07-09 TKJ5109 - Jul 9, 10:15 UTCJul 9, 12:50 UTC2h 35m
2026-07-08 TKJ8DK - Jul 8, 15:45 UTCJul 8, 18:50 UTC3h 5m
2026-07-07 TKJ47Y - Jul 7, 19:20 UTCJul 8, 12:35 UTC17h 15m
2026-07-07 TKJ6QZ - Jul 7, 03:45 UTCJul 7, 04:20 UTC35m

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

Mode-S 4BAB4F frequently asked

What is Mode-S code 4BAB4F?
4BAB4F is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JZO.
Where is Mode-S 4BAB4F registered?
Mode-S code 4BAB4F is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAB4F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAB4F, octal 22725517, decimal 4,959,055.
What flights does 4BAB4F operate?
Mode-S 4BAB4F has broadcast 20 distinct callsigns, including TKJ1VY, TKJ9DT, TKJ29V, TKJ6QZ, TKJ53R.