sensors Mode-S transponder

4BD8AC

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-VEL · AIRBUS A-310

Hex
4BD8AC
Octal
22754254
Decimal
4,970,668
Country
TR
Tail
TC-VEL
Type
A310
No current signal · last broadcast 10h ago
Flights observed
131
Distinct callsigns
20
Country
TR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 4BD8AC.

Country allocation

The ICAO 24-bit address 4BD8AC 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
THY6461 Turkish Airlines 15 2026-05-28
THY6517 Turkish Airlines 13 2026-05-23
THY6557 Turkish Airlines 7 2026-05-20
THY6510 Turkish Airlines 7 2026-05-26
THY6509 Turkish Airlines 7 2026-05-26
THY6464 Turkish Airlines 5 2026-05-26
THY6456 - 5 2026-05-29
THY6455 - 5 2026-05-29
THY6504 Turkish Airlines 4 2026-05-17
THY6503 Turkish Airlines 4 2026-05-16
THY6463 Turkish Airlines 4 2026-05-26
THY6115 Turkish Airlines 4 2026-04-29
THY6114 Turkish Airlines 4 2026-04-28
THY6671 Turkish Airlines 3 2026-05-11
THY6629 Turkish Airlines 3 2026-04-27
THY6460 - 3 2026-05-28
THY6670 Turkish Airlines 2 2026-04-17
THY6632 Turkish Airlines 2 2026-05-27
THY6631 - 2 2026-05-27
THY6459 - 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THY6456 - May 29, 16:05 UTCMay 29, 18:50 UTC2h 45m
2026-05-29 THY6455 - May 29, 10:30 UTCMay 29, 13:30 UTC3h 0m
2026-05-28 THY6461 IST → AMM May 28, 17:50 UTCMay 28, 19:30 UTC1h 40m
2026-05-28 THY6460 - May 28, 13:20 UTCMay 28, 15:15 UTC1h 55m
2026-05-27 THY6632 IST → DSS May 27, 23:55 UTCMay 28, 02:20 UTC2h 25m
2026-05-27 THY6631 - May 27, 19:20 UTCMay 27, 21:45 UTC2h 25m
2026-05-27 THY6606 VNO → IST May 27, 06:04 UTCMay 27, 07:25 UTC1h 21m
2026-05-27 THY6605 IST → FRA May 27, 02:19 UTCMay 27, 03:45 UTC1h 25m
2026-05-26 THY6464 IST → BLL May 26, 19:10 UTCMay 26, 20:45 UTC1h 35m
2026-05-26 THY6463 DEL → IST May 26, 16:05 UTCMay 26, 17:30 UTC1h 25m
2026-05-26 THY6510 PRG → IST May 26, 11:44 UTCMay 26, 13:40 UTC1h 55m
2026-05-26 THY6509 AMM → TLV May 26, 07:45 UTCMay 26, 09:45 UTC2h 0m
2026-05-24 THY6510 PRG → IST May 24, 15:05 UTCMay 24, 17:05 UTC2h 0m
2026-05-24 THY6509 AMM → TLV May 24, 10:55 UTCMay 24, 12:50 UTC1h 55m
2026-05-23 THY6517 CAN → IST May 23, 19:35 UTCMay 23, 21:20 UTC1h 45m
2026-05-23 THY6517 CAN → IST May 23, 13:55 UTCMay 23, 17:25 UTC3h 30m
2026-05-23 THY6517 CAN → IST May 23, 07:05 UTCMay 23, 10:55 UTC3h 50m
2026-05-22 THY6456 - May 22, 16:10 UTCMay 22, 18:50 UTC2h 40m
2026-05-22 THY6455 - May 22, 10:55 UTCMay 22, 13:45 UTC2h 50m
2026-05-21 THY6461 IST → AMM May 21, 17:10 UTCMay 21, 18:50 UTC1h 40m
2026-05-21 THY6461 IST → AMM May 21, 12:20 UTCMay 21, 14:55 UTC2h 35m
2026-05-21 THY6461 IST → AMM May 21, 07:15 UTCMay 21, 10:05 UTC2h 50m
2026-05-20 THY6557 IST → ORD May 20, 14:35 UTCMay 20, 16:45 UTC2h 10m
2026-05-20 THY6557 IST → ORD May 20, 10:20 UTCMay 20, 12:20 UTC2h 0m
2026-05-20 THY6557 IST → ORD May 20, 05:20 UTCMay 20, 08:25 UTC3h 5m
2026-05-19 THY6464 IST → BLL May 19, 19:30 UTCMay 19, 21:00 UTC1h 30m
2026-05-19 THY6463 DEL → IST May 19, 15:55 UTCMay 19, 17:10 UTC1h 15m
2026-05-19 THY6510 PRG → IST May 19, 11:40 UTCMay 19, 13:40 UTC2h 0m
2026-05-19 THY6509 AMM → TLV May 19, 07:45 UTCMay 19, 09:40 UTC1h 55m
2026-05-17 THY6632 IST → DSS May 17, 23:50 UTCMay 18, 02:10 UTC2h 20m
2026-05-17 THY6631 ALA → IST May 17, 19:30 UTCMay 17, 21:50 UTC2h 20m
2026-05-17 THY6510 PRG → IST May 17, 15:15 UTCMay 17, 17:20 UTC2h 5m
2026-05-17 THY6509 AMM → TLV May 17, 11:05 UTCMay 17, 13:05 UTC2h 0m
2026-05-17 THY6504 IST → IST May 17, 02:35 UTCMay 17, 05:10 UTC2h 35m
2026-05-16 THY6503 MST → IST May 16, 21:55 UTCMay 17, 00:35 UTC2h 40m
2026-05-16 THY6410 MST → IST May 16, 16:45 UTCMay 16, 19:20 UTC2h 35m
2026-05-16 THY6409 IST → MIA May 16, 11:05 UTCMay 16, 14:01 UTC2h 55m
2026-05-15 THY6456 - May 15, 18:25 UTCMay 15, 20:55 UTC2h 30m
2026-05-15 THY6455 - May 15, 13:05 UTCMay 15, 15:55 UTC2h 49m
2026-05-15 THY6474 FRA → IST May 15, 08:30 UTCMay 15, 10:40 UTC2h 10m
2026-05-15 THY6473 - May 15, 03:40 UTCMay 15, 06:10 UTC2h 30m
2026-05-14 THY6461 IST → AMM May 14, 17:00 UTCMay 14, 18:35 UTC1h 35m
2026-05-14 THY6461 IST → AMM May 14, 13:15 UTCMay 14, 14:50 UTC1h 35m
2026-05-13 THY6557 IST → ORD May 13, 14:45 UTCMay 13, 16:50 UTC2h 5m
2026-05-13 THY6557 IST → ORD May 13, 05:55 UTCMay 13, 13:00 UTC7h 5m
2026-05-12 THY6464 IST → BLL May 12, 19:45 UTCMay 12, 21:10 UTC1h 25m
2026-05-12 THY6463 DEL → IST May 12, 16:10 UTCMay 12, 17:35 UTC1h 25m
2026-05-12 THY6510 PRG → IST May 12, 12:15 UTCMay 12, 14:00 UTC1h 45m
2026-05-12 THY6509 AMM → TLV May 12, 08:15 UTCMay 12, 10:15 UTC2h 0m
2026-05-11 THY6672 - May 11, 17:05 UTCMay 11, 19:10 UTC2h 5m

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

Mode-S 4BD8AC frequently asked

What is Mode-S code 4BD8AC?
4BD8AC is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-VEL.
Where is Mode-S 4BD8AC registered?
Mode-S code 4BD8AC is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BD8AC broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BD8AC, octal 22754254, decimal 4,970,668.
What flights does 4BD8AC operate?
Mode-S 4BD8AC has broadcast 20 distinct callsigns, including THY6461, THY6517, THY6557, THY6510, THY6509.