Apparatus

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sensors Mode-S transponder

4BBCB5

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-OEU · DIAMOND DA-20

Hex
4BBCB5
Octal
22736265
Decimal
4,963,509
Country
TR
Tail
TC-OEU
Type
DV20
No current signal · last broadcast 15d ago
Flights observed
47
Distinct callsigns
1
Country
TR
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 4BBCB5.

Country allocation

The ICAO 24-bit address 4BBCB5 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 1 distinct

Callsign Airline Flights Last seen
TCOEU - 47 2026-07-13

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-07-13 TCOEU - Jul 13, 09:35 UTCJul 13, 10:00 UTC25m
2026-07-12 TCOEU - Jul 12, 15:35 UTCJul 12, 16:35 UTC1h 0m
2026-07-12 TCOEU - Jul 12, 13:50 UTCJul 12, 14:40 UTC50m
2026-07-12 TCOEU - Jul 12, 05:15 UTCJul 12, 05:35 UTC20m
2026-07-11 TCOEU - Jul 11, 14:55 UTCJul 11, 15:15 UTC20m
2026-07-11 TCOEU - Jul 11, 10:20 UTCJul 11, 10:30 UTC10m
2026-07-11 TCOEU - Jul 11, 08:45 UTCJul 11, 09:10 UTC25m
2026-07-10 TCOEU - Jul 10, 12:35 UTCJul 10, 12:50 UTC15m
2026-07-10 TCOEU - Jul 10, 09:25 UTCJul 10, 09:35 UTC10m
2026-07-09 TCOEU - Jul 9, 10:05 UTCJul 9, 10:40 UTC35m
2026-07-09 TCOEU - Jul 9, 08:05 UTCJul 9, 08:40 UTC35m
2026-07-09 TCOEU - Jul 9, 05:30 UTCJul 9, 06:45 UTC1h 15m
2026-07-09 TCOEU - Jul 9, 03:00 UTCJul 9, 04:20 UTC1h 20m
2026-07-01 TCOEU - Jul 1, 14:20 UTCJul 1, 14:50 UTC30m
2026-07-01 TCOEU - Jul 1, 12:20 UTCJul 1, 12:45 UTC25m
2026-06-30 TCOEU - Jun 30, 16:25 UTCJun 30, 16:35 UTC10m
2026-06-30 TCOEU - Jun 30, 15:15 UTCJun 30, 15:30 UTC15m
2026-06-22 TCOEU - Jun 22, 11:24 UTCJun 22, 12:34 UTC1h 10m
2026-06-20 TCOEU - Jun 20, 15:04 UTCJun 20, 15:29 UTC25m
2026-06-20 TCOEU - Jun 20, 12:39 UTCJun 20, 13:39 UTC1h 0m
2026-06-09 TCOEU - Jun 9, 05:25 UTCJun 9, 06:20 UTC55m
2026-06-08 TCOEU - Jun 8, 05:10 UTCJun 8, 05:45 UTC35m
2026-06-08 TCOEU - Jun 8, 03:30 UTCJun 8, 03:50 UTC20m
2026-06-07 TCOEU - Jun 7, 13:35 UTCJun 7, 14:20 UTC45m
2026-06-07 TCOEU - Jun 7, 11:30 UTCJun 7, 12:20 UTC50m
2026-06-07 TCOEU - Jun 7, 08:05 UTCJun 7, 10:15 UTC2h 10m
2026-06-06 TCOEU - Jun 6, 11:35 UTCJun 6, 12:20 UTC45m
2026-06-06 TCOEU - Jun 6, 07:30 UTCJun 6, 08:20 UTC50m
2026-06-05 TCOEU - Jun 5, 11:45 UTCJun 5, 12:10 UTC25m
2026-06-05 TCOEU - Jun 5, 10:05 UTCJun 5, 10:15 UTC10m
2026-06-05 TCOEU - Jun 5, 08:05 UTCJun 5, 09:00 UTC55m
2026-06-03 TCOEU - Jun 3, 10:15 UTCJun 3, 11:05 UTC50m
2026-06-03 TCOEU - Jun 3, 08:20 UTCJun 3, 09:15 UTC55m
2026-06-03 TCOEU - Jun 3, 04:35 UTCJun 3, 05:35 UTC1h 0m
2026-06-03 TCOEU - Jun 3, 03:00 UTCJun 3, 03:45 UTC45m
2026-05-30 TCOEU - May 30, 12:50 UTCMay 30, 13:35 UTC45m
2026-05-30 TCOEU - May 30, 11:05 UTCMay 30, 11:50 UTC45m
2026-05-29 TCOEU - May 29, 14:20 UTCMay 29, 16:35 UTC2h 15m
2026-05-29 TCOEU - May 29, 12:05 UTCMay 29, 13:05 UTC1h 0m
2026-05-11 TCOEU - May 11, 12:25 UTCMay 11, 12:50 UTC25m
2026-05-11 TCOEU - May 11, 10:40 UTCMay 11, 11:00 UTC20m
2026-04-29 TCOEU - Apr 29, 12:40 UTCApr 29, 13:00 UTC20m
2026-04-29 TCOEU - Apr 29, 10:30 UTCApr 29, 10:55 UTC25m
2026-04-26 TCOEU - Apr 26, 13:50 UTCApr 26, 14:15 UTC25m
2026-04-26 TCOEU - Apr 26, 12:20 UTCApr 26, 12:55 UTC35m
2026-04-25 TCOEU - Apr 25, 07:40 UTCApr 25, 08:05 UTC25m
2026-04-25 TCOEU - Apr 25, 05:50 UTCApr 25, 06:25 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-OEU page for operator, model, and routing details .

Mode-S 4BBCB5 frequently asked

What is Mode-S code 4BBCB5?
4BBCB5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-OEU.
Where is Mode-S 4BBCB5 registered?
Mode-S code 4BBCB5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BBCB5 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BBCB5, octal 22736265, decimal 4,963,509.
What flights does 4BBCB5 operate?
Mode-S 4BBCB5 has broadcast 1 distinct callsign, including TCOEU.