sensors Mode-S transponder

4BBD0C

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-OHL · BOEING 737 MAX 8

Hex
4BBD0C
Octal
22736414
Decimal
4,963,596
Country
TR
Tail
TC-OHL
Type
B38M
No current signal · last broadcast 15h ago
Flights observed
15
Distinct callsigns
9
Country
TR
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4BBD0C.

Country allocation

The ICAO 24-bit address 4BBD0C 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 9 distinct

Callsign Airline Flights Last seen
TKJ9SV - 3 2026-04-13
TKJ2BG - 3 2026-04-13
TKJ9ZV - 2 2026-04-14
TKJ51T - 2 2026-04-13
TKJ9CQ Tarkim Havacilik 1 2026-04-13
TKJ6PC Tarkim Havacilik 1 2026-04-13
TKJ48M - 1 2026-04-13
TKJ3HF - 1 2026-04-12
TKJ21K - 1 2026-04-14

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 TKJ21K - Apr 14, 10:25 UTCApr 14, 11:05 UTC40m
2026-04-14 TKJ9ZV - Apr 14, 07:10 UTCApr 14, 08:45 UTC1h 35m
2026-04-14 TKJ9ZV - Apr 14, 06:05 UTCApr 14, 07:10 UTC1h 5m
2026-04-13 TKJ6PC SAW → ADB Apr 13, 22:20 UTCApr 13, 22:50 UTC30m
2026-04-13 TKJ2BG - Apr 13, 16:15 UTCApr 13, 17:30 UTC1h 15m
2026-04-13 TKJ2BG - Apr 13, 15:50 UTCApr 13, 17:30 UTC1h 40m
2026-04-13 TKJ2BG - Apr 13, 14:55 UTCApr 13, 16:15 UTC1h 20m
2026-04-13 TKJ9SV - Apr 13, 12:20 UTCApr 13, 13:30 UTC1h 10m
2026-04-13 TKJ9SV - Apr 13, 11:55 UTCApr 13, 13:30 UTC1h 35m
2026-04-13 TKJ9SV - Apr 13, 10:45 UTCApr 13, 12:15 UTC1h 30m
2026-04-13 TKJ48M - Apr 13, 06:50 UTCApr 13, 07:45 UTC55m
2026-04-13 TKJ9CQ TZX → SAW Apr 13, 04:50 UTCApr 13, 05:30 UTC40m
2026-04-13 TKJ51T - Apr 13, 00:20 UTCApr 13, 01:40 UTC1h 20m
2026-04-12 TKJ51T - Apr 12, 23:55 UTCApr 13, 01:40 UTC1h 45m
2026-04-12 TKJ3HF - Apr 12, 18:45 UTCApr 12, 20:15 UTC1h 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-OHL page for operator, model, and routing details .

Mode-S 4BBD0C frequently asked

What is Mode-S code 4BBD0C?
4BBD0C is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-OHL.
Where is Mode-S 4BBD0C registered?
Mode-S code 4BBD0C is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BBD0C broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BBD0C, octal 22736414, decimal 4,963,596.
What flights does 4BBD0C operate?
Mode-S 4BBD0C has broadcast 9 distinct callsigns, including TKJ9SV, TKJ2BG, TKJ9ZV, TKJ51T, TKJ9CQ.