Apparatus

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sensors Mode-S transponder

4B9DA1

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-GMA · AIRBUS A-320

Hex
4B9DA1
Octal
22716641
Decimal
4,955,553
Country
TR
Tail
TC-GMA
Type
A320
No current signal · last broadcast 4h ago
Flights observed
142
Distinct callsigns
20
Country
TR
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B9DA1.

Country allocation

The ICAO 24-bit address 4B9DA1 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
HYM346 - 15 2026-07-13
HYM345 - 12 2026-07-13
HYM317 - 9 2026-07-13
OMS206 Omskavia Airline 8 2026-05-15
OMS506 Omskavia Airline 7 2026-05-28
OMS284 Omskavia Airline 7 2026-05-13
HYM316 - 7 2026-07-12
OMS538 Omskavia Airline 6 2026-05-24
OMS537 Omskavia Airline 6 2026-05-23
HYM412 - 6 2026-07-12
HYM411 - 6 2026-07-12
HYM318 - 6 2026-07-14
OMS564 Omskavia Airline 5 2026-05-26
OMS286 Omskavia Airline 5 2026-05-08
OMS214 Omskavia Airline 5 2026-05-13
HYM315 - 4 2026-07-11
OMS505 Omskavia Airline 3 2026-05-25
OMS997 - 2 2026-05-31
OMS522 Omskavia Airline 2 2026-05-28
OMS213 Omskavia Airline 2 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HYM318 - Jul 14, 01:05 UTCJul 14, 02:25 UTC1h 20m
2026-07-13 HYM317 - Jul 13, 21:50 UTCJul 13, 23:05 UTC1h 15m
2026-07-13 HYM346 - Jul 13, 08:15 UTCJul 13, 10:30 UTC2h 15m
2026-07-13 HYM345 - Jul 13, 00:55 UTCJul 13, 06:30 UTC5h 35m
2026-07-12 HYM412 - Jul 12, 17:35 UTCJul 12, 23:45 UTC6h 10m
2026-07-12 HYM411 - Jul 12, 13:15 UTCJul 12, 16:10 UTC2h 55m
2026-07-12 HYM346 - Jul 12, 09:00 UTCJul 12, 11:10 UTC2h 10m
2026-07-12 HYM345 - Jul 12, 04:55 UTCJul 12, 07:05 UTC2h 10m
2026-07-12 HYM316 - Jul 12, 00:40 UTCJul 12, 02:01 UTC1h 20m
2026-07-11 HYM315 - Jul 11, 21:50 UTCJul 11, 23:15 UTC1h 25m
2026-07-11 HYM412 - Jul 11, 17:25 UTCJul 11, 19:45 UTC2h 20m
2026-07-11 HYM411 - Jul 11, 12:50 UTCJul 11, 15:50 UTC3h 0m
2026-07-11 HYM318 - Jul 11, 00:20 UTCJul 11, 01:45 UTC1h 25m
2026-07-10 HYM317 - Jul 10, 21:25 UTCJul 10, 22:50 UTC1h 25m
2026-07-10 HYM346 - Jul 10, 10:55 UTCJul 10, 13:10 UTC2h 15m
2026-07-10 HYM345 - Jul 10, 00:45 UTCJul 10, 06:50 UTC6h 5m
2026-07-09 HYM412 - Jul 9, 17:20 UTCJul 9, 23:10 UTC5h 50m
2026-07-09 HYM411 - Jul 9, 12:55 UTCJul 9, 15:50 UTC2h 55m
2026-07-09 HYM346 - Jul 9, 00:25 UTCJul 9, 11:30 UTC11h 5m
2026-07-08 HYM317 - Jul 8, 21:15 UTCJul 8, 22:40 UTC1h 25m
2026-07-08 HYM316 - Jul 8, 00:25 UTCJul 8, 22:40 UTC22h 15m
2026-07-07 HYM422 - Jul 7, 15:10 UTCJul 7, 22:50 UTC7h 40m
2026-07-07 HYM421 - Jul 7, 12:45 UTCJul 7, 13:40 UTC55m
2026-07-07 HYM346 - Jul 7, 08:50 UTCJul 7, 11:10 UTC2h 20m
2026-07-07 HYM345 - Jul 7, 01:10 UTCJul 7, 06:50 UTC5h 40m
2026-07-06 HYM317 - Jul 6, 21:50 UTCJul 6, 23:15 UTC1h 25m
2026-07-06 HYM346 - Jul 6, 08:00 UTCJul 6, 10:20 UTC2h 20m
2026-07-05 HYM412 - Jul 5, 18:10 UTCJul 6, 05:55 UTC11h 45m
2026-07-05 HYM411 - Jul 5, 13:30 UTCJul 5, 16:35 UTC3h 5m
2026-07-05 HYM346 - Jul 5, 08:20 UTCJul 5, 10:40 UTC2h 20m
2026-07-05 HYM345 - Jul 5, 04:20 UTCJul 5, 06:15 UTC1h 55m
2026-07-05 HYM316 - Jul 5, 00:20 UTCJul 5, 01:45 UTC1h 25m
2026-07-04 HYM346 - Jul 4, 08:25 UTCJul 4, 22:50 UTC14h 25m
2026-07-04 HYM345 - Jul 4, 04:00 UTCJul 4, 06:20 UTC2h 20m
2026-07-04 HYM318 - Jul 4, 00:10 UTCJul 4, 01:30 UTC1h 20m
2026-07-03 HYM317 - Jul 3, 21:40 UTCJul 3, 23:00 UTC1h 20m
2026-07-03 HYM346 - Jul 3, 09:05 UTCJul 3, 11:35 UTC2h 30m
2026-07-03 HYM345 - Jul 3, 04:15 UTCJul 3, 06:45 UTC2h 30m
2026-07-03 HYM316 - Jul 3, 00:25 UTCJul 3, 01:45 UTC1h 20m
2026-07-01 HYM317 - Jul 1, 22:15 UTCJul 1, 23:20 UTC1h 5m
2026-06-30 HYM346 - Jun 30, 05:25 UTCJun 30, 11:25 UTC6h 0m
2026-06-30 HYM346 - Jun 30, 00:09 UTCJun 30, 02:35 UTC2h 26m
2026-06-29 HYM345 - Jun 29, 03:39 UTCJun 29, 06:14 UTC2h 35m
2026-06-28 HYM346 - Jun 28, 08:14 UTCJun 28, 10:35 UTC2h 20m
2026-06-28 HYM345 - Jun 28, 04:05 UTCJun 28, 06:20 UTC2h 15m
2026-06-28 HYM316 - Jun 28, 00:30 UTCJun 28, 01:55 UTC1h 25m
2026-06-27 HYM315 - Jun 27, 21:44 UTCJun 27, 23:14 UTC1h 30m
2026-06-27 HYM412 - Jun 27, 17:39 UTCJun 27, 20:14 UTC2h 35m
2026-06-27 HYM411 - Jun 27, 13:35 UTCJun 27, 16:20 UTC2h 45m
2026-06-27 HYM346 - Jun 27, 08:49 UTCJun 27, 11:20 UTC2h 30m

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

Mode-S 4B9DA1 frequently asked

What is Mode-S code 4B9DA1?
4B9DA1 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GMA.
Where is Mode-S 4B9DA1 registered?
Mode-S code 4B9DA1 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9DA1 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9DA1, octal 22716641, decimal 4,955,553.
What flights does 4B9DA1 operate?
Mode-S 4B9DA1 has broadcast 20 distinct callsigns, including HYM346, HYM345, HYM317, OMS206, OMS506.