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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
Broadcasting now · callsign THY6116 · 34,000 ft
Flights observed
265
Distinct callsigns
20
Country
TR
Last broadcast
48m ago

Current position

4BD8AC is currently broadcasting. Map zoomed to live position.

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
THY6517 Turkish Airlines 22 2026-06-13
THY6461 - 21 2026-06-28
THY6439 - 15 2026-07-14
THY6557 - 14 2026-07-09
THY6510 - 13 2026-07-12
THY6509 - 13 2026-07-12
THY6553 - 12 2026-07-11
THY6504 - 12 2026-07-13
THY6114 - 12 2026-07-10
THY6503 - 11 2026-07-13
THY6115 - 11 2026-07-10
THY6456 - 9 2026-06-26
THY6455 - 9 2026-06-26
THY6460 - 7 2026-07-10
THY6464 Turkish Airlines 5 2026-05-26
THY6463 Turkish Airlines 4 2026-05-26
THY6459 - 4 2026-07-09
THY6458 - 4 2026-07-09
THY6671 Turkish Airlines 3 2026-05-11
THY6629 Turkish Airlines 3 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY6116 - Jul 14, 09:55 UTCJul 14, 11:00 UTC1h 5m
2026-07-14 THY6439 - Jul 14, 05:10 UTCJul 14, 07:20 UTC2h 10m
2026-07-14 THY6439 - Jul 14, 00:40 UTCJul 14, 03:05 UTC2h 25m
2026-07-13 THY6439 - Jul 13, 18:20 UTCJul 13, 22:25 UTC4h 5m
2026-07-13 THY6504 - Jul 13, 13:30 UTCJul 13, 16:10 UTC2h 40m
2026-07-13 THY6503 - Jul 13, 08:50 UTCJul 13, 11:40 UTC2h 50m
2026-07-12 THY6510 - Jul 12, 15:05 UTCJul 12, 17:10 UTC2h 5m
2026-07-12 THY6509 - Jul 12, 10:50 UTCJul 12, 12:55 UTC2h 5m
2026-07-12 THY6502 - Jul 12, 01:00 UTCJul 12, 02:15 UTC1h 15m
2026-07-11 THY6501 - Jul 11, 21:20 UTCJul 11, 22:30 UTC1h 10m
2026-07-11 THY6553 - Jul 11, 16:35 UTCJul 11, 19:20 UTC2h 45m
2026-07-11 THY6553 - Jul 11, 11:15 UTCJul 11, 13:55 UTC2h 40m
2026-07-11 THY6553 - Jul 11, 04:15 UTCJul 11, 08:30 UTC4h 15m
2026-07-10 THY6418 - Jul 10, 20:20 UTCJul 10, 23:45 UTC3h 25m
2026-07-10 THY6417 - Jul 10, 14:10 UTCJul 10, 17:55 UTC3h 45m
2026-07-10 THY6115 - Jul 10, 09:55 UTCJul 10, 12:00 UTC2h 5m
2026-07-10 THY6114 - Jul 10, 04:40 UTCJul 10, 06:55 UTC2h 15m
2026-07-10 THY6460 - Jul 10, 00:30 UTCJul 10, 02:50 UTC2h 20m
2026-07-09 THY6459 - Jul 9, 20:10 UTCJul 9, 23:00 UTC2h 50m
2026-07-09 THY6557 - Jul 9, 16:20 UTCJul 9, 18:30 UTC2h 10m
2026-07-09 THY6556 - Jul 9, 11:35 UTCJul 9, 14:10 UTC2h 35m
2026-07-09 THY6458 - Jul 9, 05:50 UTCJul 9, 08:55 UTC3h 5m
2026-07-09 THY6457 - Jul 9, 01:00 UTCJul 9, 04:10 UTC3h 10m
2026-07-08 THY6115 - Jul 8, 20:50 UTCJul 8, 23:05 UTC2h 15m
2026-07-08 THY6114 - Jul 8, 15:05 UTCJul 8, 17:10 UTC2h 5m
2026-07-07 THY6114 - Jul 7, 22:25 UTCJul 7, 23:50 UTC1h 25m
2026-07-07 THY6604 - Jul 7, 02:10 UTCJul 7, 09:50 UTC7h 40m
2026-07-06 THY6125 - Jul 6, 09:25 UTCJul 6, 15:25 UTC6h 0m
2026-07-05 THY6504 - Jul 5, 02:35 UTCJul 5, 05:05 UTC2h 30m
2026-07-04 THY6503 - Jul 4, 22:00 UTCJul 5, 00:55 UTC2h 55m
2026-07-04 THY6553 - Jul 4, 16:00 UTCJul 4, 18:35 UTC2h 35m
2026-07-04 THY6553 - Jul 4, 10:40 UTCJul 4, 13:35 UTC2h 55m
2026-07-04 THY6553 - Jul 4, 04:15 UTCJul 4, 08:15 UTC4h 0m
2026-07-03 THY6502 - Jul 3, 14:25 UTCJul 3, 15:40 UTC1h 15m
2026-07-03 THY6501 - Jul 3, 10:50 UTCJul 3, 12:00 UTC1h 10m
2026-07-03 THY6115 - Jul 3, 04:15 UTCJul 3, 06:20 UTC2h 5m
2026-07-02 THY6114 - Jul 2, 23:35 UTCJul 3, 01:40 UTC2h 5m
2026-07-02 THY6116 - Jul 2, 18:15 UTCJul 2, 20:05 UTC1h 50m
2026-07-02 THY6116 - Jul 2, 14:15 UTCJul 2, 15:55 UTC1h 40m
2026-07-01 THY6458 - Jul 1, 23:05 UTCJul 2, 02:35 UTC3h 30m
2026-07-01 THY6457 - Jul 1, 18:00 UTCJul 1, 20:55 UTC2h 55m
2026-07-01 THY6557 - Jul 1, 12:50 UTCJul 1, 15:20 UTC2h 30m
2026-07-01 THY6556 - Jul 1, 08:15 UTCJul 1, 10:40 UTC2h 25m
2026-07-01 THY6115 - Jul 1, 03:50 UTCJul 1, 06:00 UTC2h 10m
2026-06-30 THY6114 - Jun 30, 23:00 UTCJul 1, 01:25 UTC2h 25m
2026-06-30 THY6504 - Jun 30, 18:25 UTCJun 30, 21:15 UTC2h 50m
2026-06-30 THY6503 - Jun 30, 14:20 UTCJun 30, 17:00 UTC2h 40m
2026-06-29 THY6439 - Jun 29, 20:40 UTCJun 29, 22:55 UTC2h 15m
2026-06-29 THY6439 - Jun 29, 16:44 UTCJun 29, 18:14 UTC1h 30m
2026-06-29 THY6439 - Jun 29, 11:45 UTCJun 29, 14:39 UTC2h 55m

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?
Yes. Mode-S 4BD8AC is currently airborne.
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 THY6517, THY6461, THY6439, THY6557, THY6510.