Apparatus

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sensors Mode-S transponder

4BD8CB

ICAO 24-bit transponder address · allocated to Turkey

Hex
4BD8CB
Octal
22754313
Decimal
4,970,699
Country
TR
No current signal · last broadcast 17d ago
Flights observed
157
Distinct callsigns
20
Country
TR
Last broadcast
17d ago

Last known position

Most recent position reported by Mode-S 4BD8CB.

Country allocation

The ICAO 24-bit address 4BD8CB 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
BOE893 - 5 2026-06-15
BOE123 - 5 2026-05-14
TKJ8NX - 3 2026-07-19
TKJ8CQ Tarkim Havacilik 3 2026-07-19
TKJ7NZ - 3 2026-07-20
TKJ3PE Tarkim Havacilik 3 2026-07-24
TKJ9YX - 2 2026-07-16
TKJ8UM - 2 2026-07-16
TKJ8DC Tarkim Havacilik 2 2026-07-18
TKJ80T - 2 2026-07-01
TKJ7RA - 2 2026-07-16
TKJ6MR - 2 2026-07-24
TKJ6CM Tarkim Havacilik 2 2026-07-26
TKJ5GR Tarkim Havacilik 2 2026-07-26
TKJ5GM - 2 2026-07-25
TKJ5399 - 2 2026-07-25
TKJ5302 - 2 2026-07-12
TKJ5044 Tarkim Havacilik 2 2026-07-22
TKJ42Q - 2 2026-07-16
TKJ3EL - 2 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ5GR SAW → PRN Jul 26, 21:20 UTCJul 26, 21:35 UTC15m
2026-07-26 TKJ5GR SAW → PRN Jul 26, 20:25 UTCJul 26, 20:50 UTC25m
2026-07-26 TKJ70Z - Jul 26, 16:20 UTCJul 26, 18:55 UTC2h 35m
2026-07-26 TKJ15V - Jul 26, 12:00 UTCJul 26, 14:50 UTC2h 50m
2026-07-26 TKJ37F KYA → SAW Jul 26, 09:45 UTCJul 26, 10:15 UTC30m
2026-07-26 TKJ6CM SAW → ECN Jul 26, 07:40 UTCJul 26, 08:00 UTC20m
2026-07-26 TKJ5EF SAW → BER Jul 26, 03:10 UTCJul 26, 04:35 UTC1h 25m
2026-07-25 TKJ5399 - Jul 25, 22:40 UTCJul 25, 22:45 UTC5m
2026-07-25 TKJ5399 - Jul 25, 21:35 UTCJul 25, 22:00 UTC25m
2026-07-25 TKJ5398 TZX → SAW Jul 25, 18:40 UTCJul 25, 20:05 UTC1h 25m
2026-07-25 TKJ5GM - Jul 25, 17:20 UTCJul 25, 17:25 UTC5m
2026-07-25 TKJ5GM - Jul 25, 16:05 UTCJul 25, 16:35 UTC30m
2026-07-25 TKJ1HG SAW → FRA Jul 25, 11:45 UTCJul 25, 14:00 UTC2h 15m
2026-07-25 TKJ7HY SAW → STR Jul 25, 07:50 UTCJul 25, 10:25 UTC2h 35m
2026-07-25 TKJ4UB SAW → BGW Jul 25, 04:05 UTCJul 25, 04:50 UTC45m
2026-07-25 TKJ5SE - Jul 25, 01:10 UTCJul 25, 02:30 UTC1h 20m
2026-07-24 TKJ35M - Jul 24, 22:10 UTCJul 24, 23:40 UTC1h 30m
2026-07-24 TKJ9QU - Jul 24, 18:35 UTCJul 24, 19:25 UTC50m
2026-07-24 TKJ3PE GYD → SAW Jul 24, 10:20 UTCJul 24, 16:40 UTC6h 20m
2026-07-24 TKJ6MR - Jul 24, 03:55 UTCJul 24, 08:20 UTC4h 25m
2026-07-23 TKJ4YF - Jul 23, 14:55 UTCJul 23, 16:40 UTC1h 45m
2026-07-23 TKJ52X - Jul 23, 11:25 UTCJul 23, 13:10 UTC1h 45m
2026-07-23 TKJ7ZJ - Jul 23, 04:55 UTCJul 23, 09:45 UTC4h 50m
2026-07-22 TKJ5044 DUS → SAW Jul 22, 20:25 UTCJul 22, 20:50 UTC25m
2026-07-22 TKJ5044 DUS → SAW Jul 22, 14:00 UTCJul 22, 17:25 UTC3h 25m
2026-07-22 TKJ5043 - Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 TKJ50P BER → SAW Jul 22, 03:15 UTCJul 22, 10:25 UTC7h 10m
2026-07-21 TKJ9WG SAW → AMS Jul 21, 17:00 UTCJul 21, 20:05 UTC3h 5m
2026-07-21 TKJ84L ARN → SAW Jul 21, 11:00 UTCJul 21, 14:05 UTC3h 5m
2026-07-21 TKJ7FK ECN → SAW Jul 21, 06:10 UTCJul 21, 09:20 UTC3h 10m
2026-07-21 TKJ348 ALY → SAW Jul 21, 01:40 UTCJul 21, 03:20 UTC1h 40m
2026-07-20 TKJ347 SAW → ALY Jul 20, 20:55 UTCJul 20, 22:00 UTC1h 5m
2026-07-20 TKJ3PE GYD → SAW Jul 20, 16:10 UTCJul 20, 16:25 UTC15m
2026-07-20 TKJ3PE GYD → SAW Jul 20, 14:05 UTCJul 20, 15:25 UTC1h 20m
2026-07-20 TKJ56F SAW → GYD Jul 20, 10:10 UTCJul 20, 11:55 UTC1h 45m
2026-07-20 TKJ7NZ - Jul 20, 03:15 UTCJul 20, 07:35 UTC4h 20m
2026-07-19 TKJ8CQ STR → SAW Jul 19, 20:20 UTCJul 19, 20:45 UTC25m
2026-07-19 TKJ8CQ STR → SAW Jul 19, 19:30 UTCJul 19, 19:40 UTC10m
2026-07-19 TKJ8NX - Jul 19, 16:00 UTCJul 19, 16:30 UTC30m
2026-07-19 TKJ7FC - Jul 19, 13:10 UTCJul 19, 14:25 UTC1h 15m
2026-07-19 TKJ2KL ECN → ADB Jul 19, 10:30 UTCJul 19, 11:50 UTC1h 20m
2026-07-19 TKJ6YK DUS → SAW Jul 19, 03:15 UTCJul 19, 07:35 UTC4h 20m
2026-07-18 TKJ8DC ADB → SAW Jul 18, 21:50 UTCJul 18, 22:25 UTC35m
2026-07-18 TKJ3EL - Jul 18, 19:55 UTCJul 18, 20:35 UTC40m
2026-07-18 TKJ9CL SAW → STR Jul 18, 17:40 UTCJul 18, 18:25 UTC45m
2026-07-18 TKJ45W BEG → ESB Jul 18, 15:15 UTCJul 18, 15:35 UTC20m
2026-07-18 TKJ40R - Jul 18, 11:00 UTCJul 18, 13:20 UTC2h 20m
2026-07-18 TKJ8QP - Jul 18, 05:30 UTCJul 18, 08:10 UTC2h 40m
2026-07-17 TKJ7EG - Jul 17, 21:15 UTCJul 17, 21:34 UTC20m
2026-07-17 TKJ5AP - Jul 17, 17:44 UTCJul 17, 18:10 UTC25m

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.

Mode-S 4BD8CB frequently asked

What is Mode-S code 4BD8CB?
4BD8CB is an ICAO 24-bit transponder address. Allocated to Turkey.
Where is Mode-S 4BD8CB registered?
Mode-S code 4BD8CB is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BD8CB broadcasting right now?
No active broadcast right now. Last signal was 17d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BD8CB, octal 22754313, decimal 4,970,699.
What flights does 4BD8CB operate?
Mode-S 4BD8CB has broadcast 20 distinct callsigns, including BOE893, BOE123, TKJ8NX, TKJ8CQ, TKJ7NZ.