sensors Mode-S transponder

4BC8CA

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-RFJ · AIRBUS A-321neo

Hex
4BC8CA
Octal
22744312
Decimal
4,966,602
Country
TR
Tail
TC-RFJ
Type
A21N
No current signal · last broadcast 13h ago
Flights observed
13
Distinct callsigns
8
Country
TR
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 4BC8CA.

Country allocation

The ICAO 24-bit address 4BC8CA 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 8 distinct

Callsign Airline Flights Last seen
PGT63QR - 3 2026-04-13
PGT83BX Pegasus Airlines 2 2026-04-14
PGT82GJ - 2 2026-04-13
PGT306U - 2 2026-04-13
PGT4601 - 1 2026-04-13
PGT4064 - 1 2026-04-12
PGT3CQ - 1 2026-04-13
PGT35BN - 1 2026-04-14

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 PGT35BN - Apr 14, 09:10 UTCApr 14, 09:55 UTC45m
2026-04-14 PGT83BX SAW → SKP Apr 14, 07:10 UTCApr 14, 07:45 UTC35m
2026-04-14 PGT83BX SAW → SKP Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-13 PGT306U - Apr 13, 15:50 UTCApr 13, 16:10 UTC20m
2026-04-13 PGT306U - Apr 13, 14:10 UTCApr 13, 16:10 UTC2h 0m
2026-04-13 PGT63QR - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m
2026-04-13 PGT63QR - Apr 13, 11:55 UTCApr 13, 12:45 UTC50m
2026-04-13 PGT63QR - Apr 13, 10:25 UTCApr 13, 12:15 UTC1h 50m
2026-04-13 PGT82GJ - Apr 13, 08:20 UTCApr 13, 08:45 UTC25m
2026-04-13 PGT82GJ - Apr 13, 08:00 UTCApr 13, 08:15 UTC15m
2026-04-13 PGT3CQ - Apr 13, 05:35 UTCApr 13, 06:30 UTC55m
2026-04-13 PGT4601 - Apr 13, 02:55 UTCApr 13, 03:20 UTC25m
2026-04-12 PGT4064 - Apr 12, 18:00 UTCApr 12, 18:25 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.

Prefer a tail-number view? See the TC-RFJ page for operator, model, and routing details .

Mode-S 4BC8CA frequently asked

What is Mode-S code 4BC8CA?
4BC8CA is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-RFJ.
Where is Mode-S 4BC8CA registered?
Mode-S code 4BC8CA is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BC8CA broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BC8CA, octal 22744312, decimal 4,966,602.
What flights does 4BC8CA operate?
Mode-S 4BC8CA has broadcast 8 distinct callsigns, including PGT63QR, PGT83BX, PGT82GJ, PGT306U, PGT4601.