sensors Mode-S transponder

4B8DE5

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-COE · BOEING 737-800

Hex
4B8DE5
Octal
22706745
Decimal
4,951,525
Country
TR
Tail
TC-COE
Type
B738
No current signal · last broadcast 3h ago
Flights observed
111
Distinct callsigns
20
Country
TR
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4B8DE5.

Country allocation

The ICAO 24-bit address 4B8DE5 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CAI6CP NUE → AYT May 30, 00:20 UTCMay 30, 03:10 UTC2h 50m
2026-05-29 CAI5JN AYT → NUE May 29, 20:00 UTCMay 29, 23:10 UTC3h 10m
2026-05-29 CAI4T AYT → AMS May 29, 14:25 UTCMay 29, 18:30 UTC4h 5m
2026-05-29 CAI8AP AYT → GLA May 29, 07:40 UTCMay 29, 12:25 UTC4h 45m
2026-05-28 CAI9164 DUS → AYT May 28, 19:05 UTCMay 28, 20:50 UTC1h 45m
2026-05-28 CAI9W - May 28, 13:40 UTCMay 28, 17:40 UTC4h 0m
2026-05-28 CAI7PC AYT → MAN May 28, 07:40 UTCMay 28, 12:05 UTC4h 25m
2026-05-27 CAI48Z FDH → AYT May 27, 15:45 UTCMay 27, 18:40 UTC2h 55m
2026-05-27 CAI46SZ AYT → FDH May 27, 11:25 UTCMay 27, 14:30 UTC3h 5m
2026-05-26 CAI9302 AYT → SVO May 26, 18:14 UTCMay 27, 04:49 UTC10h 35m
2026-05-26 CAI9281 LED → AYT May 26, 01:14 UTCMay 26, 05:15 UTC4h 0m
2026-05-25 CAI9282 MED → DIY May 25, 19:35 UTCMay 26, 00:00 UTC4h 25m
2026-05-25 CAI4T AYT → AMS May 25, 13:50 UTCMay 25, 18:15 UTC4h 25m
2026-05-25 CAI8AP AYT → GLA May 25, 07:40 UTCMay 25, 12:10 UTC4h 30m
2026-05-24 CAI9118 FMO → AYT May 24, 18:40 UTCMay 25, 05:50 UTC11h 10m
2026-05-24 CAI26FD LGW → AYT May 24, 13:30 UTCMay 24, 17:20 UTC3h 50m
2026-05-24 CAI76U AYT → LGW May 24, 07:30 UTCMay 24, 11:50 UTC4h 20m
2026-05-23 CAI9616 - May 23, 18:35 UTCMay 23, 22:50 UTC4h 15m
2026-05-23 CAI1F AYT → CGN May 23, 13:05 UTCMay 23, 16:00 UTC2h 55m
2026-05-23 CAI6XG AYT → FKB May 23, 08:20 UTCMay 23, 11:25 UTC3h 5m
2026-05-22 CAI9046 AYT → KZN May 22, 18:35 UTCMay 23, 05:15 UTC10h 39m
2026-05-22 CAI2XN LEJ → AYT May 22, 12:55 UTCMay 22, 15:45 UTC2h 50m
2026-05-22 CAI5A AYT → EIN May 22, 08:15 UTCMay 22, 11:20 UTC3h 4m
2026-05-21 CAI9294 AYT → LED May 21, 19:30 UTCMay 22, 06:50 UTC11h 20m
2026-05-21 CAI9W - May 21, 13:50 UTCMay 21, 17:40 UTC3h 50m
2026-05-21 CAI7PC AYT → MAN May 21, 07:50 UTCMay 21, 12:15 UTC4h 25m
2026-05-19 CAI9512 AYT → KUF May 19, 17:35 UTCMay 20, 01:35 UTC8h 0m
2026-05-19 CAI47CF LNZ → AYT May 19, 08:30 UTCMay 19, 10:50 UTC2h 20m
2026-05-19 CAI5TP AYT → LNZ May 19, 04:55 UTCMay 19, 07:25 UTC2h 30m
2026-05-18 CAI9514 AYT → KUF May 18, 18:00 UTCMay 18, 20:45 UTC2h 44m
2026-05-17 CAI9118 FMO → AYT May 17, 18:25 UTCMay 18, 05:30 UTC11h 5m
2026-05-17 CAI9305 SVO → AYT May 17, 09:55 UTCMay 17, 12:25 UTC2h 30m
2026-05-16 CAI9306 AYT → SVO May 16, 21:05 UTCMay 17, 01:35 UTC4h 30m
2026-05-16 CAI48Z - May 16, 16:55 UTCMay 16, 19:25 UTC2h 30m
2026-05-16 CAI7DW AYT → FDH May 16, 12:40 UTCMay 16, 16:00 UTC3h 20m
2026-05-16 CAI6JC - May 16, 08:41 UTCMay 16, 11:21 UTC2h 40m
2026-05-16 CAI4H AYT → BRS May 16, 04:20 UTCMay 16, 07:01 UTC2h 41m
2026-05-15 CAI9116 - May 15, 12:25 UTCMay 15, 17:05 UTC4h 39m
2026-05-14 CAI9164 DUS → AYT May 14, 19:15 UTCMay 14, 21:10 UTC1h 55m
2026-05-14 CAI7WZ - May 14, 13:45 UTCMay 14, 17:35 UTC3h 50m
2026-05-14 CAI5KT - May 14, 08:00 UTCMay 14, 12:15 UTC4h 15m
2026-05-14 CAI9515 KUF → AYT May 14, 03:40 UTCMay 14, 04:00 UTC20m
2026-05-13 CAI9516 AYT → KUF May 13, 18:00 UTCMay 14, 02:25 UTC8h 25m
2026-05-13 CAI9511 AYT → IST May 13, 03:05 UTCMay 13, 03:20 UTC15m
2026-05-12 CAI9512 AYT → KUF May 12, 17:35 UTCMay 13, 02:15 UTC8h 40m
2026-05-11 CAI9282 MED → DIY May 11, 19:25 UTCMay 12, 05:05 UTC9h 40m
2026-05-11 CAI9W - May 11, 14:05 UTCMay 11, 17:55 UTC3h 50m
2026-05-11 CAI7PC AYT → MAN May 11, 08:05 UTCMay 11, 12:35 UTC4h 30m
2026-05-10 CAI9508 CDG → VIT May 10, 17:59 UTCMay 10, 22:09 UTC4h 10m
2026-05-10 CAI2XN LEJ → AYT May 10, 13:05 UTCMay 10, 15:49 UTC2h 45m

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

Mode-S 4B8DE5 frequently asked

What is Mode-S code 4B8DE5?
4B8DE5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-COE.
Where is Mode-S 4B8DE5 registered?
Mode-S code 4B8DE5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B8DE5 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B8DE5, octal 22706745, decimal 4,951,525.
What flights does 4B8DE5 operate?
Mode-S 4B8DE5 has broadcast 20 distinct callsigns, including CAI9GH, CAI5A, CAI2XN, CAI9W, CAI9616.