Apparatus

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sensors Mode-S transponder

4B8CAC

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-CEL · ZLIN Z-42/142/242

Hex
4B8CAC
Octal
22706254
Decimal
4,951,212
Country
TR
Tail
TC-CEL
Type
Z42
No current signal · last broadcast Jul 24, 06:50 UTC
Flights observed
25
Distinct callsigns
1
Country
TR
Last broadcast
Jul 24, 06:50 UTC

Last known position

Most recent position reported by Mode-S 4B8CAC.

Country allocation

The ICAO 24-bit address 4B8CAC 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
TCCEL - 25 2026-07-24

Recent flights last 25

DateFlightRouteTakeoffLandingDuration
2026-07-24 TCCEL - Jul 24, 06:40 UTCJul 24, 06:50 UTC10m
2026-07-21 TCCEL - Jul 21, 06:00 UTCJul 21, 06:55 UTC55m
2026-07-18 TCCEL - Jul 18, 10:45 UTCJul 18, 11:40 UTC55m
2026-07-18 TCCEL - Jul 18, 05:05 UTCJul 18, 05:55 UTC50m
2026-07-16 TCCEL - Jul 16, 14:20 UTCJul 16, 15:10 UTC50m
2026-07-16 TCCEL - Jul 16, 06:25 UTCJul 16, 07:30 UTC1h 5m
2026-07-12 TCCEL - Jul 12, 10:15 UTCJul 12, 10:25 UTC10m
2026-07-12 TCCEL - Jul 12, 09:25 UTCJul 12, 09:35 UTC10m
2026-07-11 TCCEL - Jul 11, 08:30 UTCJul 11, 09:30 UTC1h 0m
2026-07-07 TCCEL - Jul 7, 13:00 UTCJul 7, 13:10 UTC10m
2026-07-02 TCCEL - Jul 2, 07:55 UTCJul 2, 08:10 UTC15m
2026-06-29 TCCEL - Jun 29, 10:44 UTCJun 29, 10:55 UTC10m
2026-06-29 TCCEL - Jun 29, 09:54 UTCJun 29, 10:04 UTC10m
2026-06-23 TCCEL - Jun 23, 10:24 UTCJun 23, 10:35 UTC10m
2026-06-17 TCCEL - Jun 17, 14:35 UTCJun 17, 14:45 UTC10m
2026-06-12 TCCEL - Jun 12, 06:30 UTCJun 12, 07:35 UTC1h 5m
2026-06-10 TCCEL - Jun 10, 10:55 UTCJun 10, 12:10 UTC1h 15m
2026-06-09 TCCEL - Jun 9, 10:55 UTCJun 9, 11:10 UTC15m
2026-06-09 TCCEL - Jun 9, 09:00 UTCJun 9, 10:05 UTC1h 5m
2026-06-06 TCCEL - Jun 6, 06:25 UTCJun 6, 07:10 UTC45m
2026-06-04 TCCEL - Jun 4, 13:15 UTCJun 4, 13:25 UTC10m
2026-06-01 TCCEL - Jun 1, 13:40 UTCJun 1, 13:50 UTC10m
2026-06-01 TCCEL - Jun 1, 11:15 UTCJun 1, 11:50 UTC35m
2026-06-01 TCCEL - Jun 1, 08:55 UTCJun 1, 09:30 UTC35m
2026-06-01 TCCEL - Jun 1, 06:45 UTCJun 1, 07:05 UTC20m

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

Mode-S 4B8CAC frequently asked

What is Mode-S code 4B8CAC?
4B8CAC is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-CEL.
Where is Mode-S 4B8CAC registered?
Mode-S code 4B8CAC is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B8CAC broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 06:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B8CAC, octal 22706254, decimal 4,951,212.
What flights does 4B8CAC operate?
Mode-S 4B8CAC has broadcast 1 distinct callsign, including TCCEL.