Apparatus

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sensors Mode-S transponder

4A068D

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-ATM · ATR-72-600

Hex
4A068D
Octal
22403215
Decimal
4,851,341
Country
RO
Tail
YR-ATM
Type
AT76
No current signal · last broadcast 3d ago
Flights observed
671
Distinct callsigns
20
Country
RO
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 4A068D.

Country allocation

The ICAO 24-bit address 4A068D falls within the block assigned to Romania (RO) by ICAO Annex 10, Volume III. Every aircraft registered in Romania 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
ROT703E Tarom 24 2026-07-26
ROT644N Tarom 24 2026-07-25
ROT643C Tarom 24 2026-07-25
ROT707B - 22 2026-07-19
ROT704A Tarom 20 2026-07-26
ROT708F Tarom 19 2026-07-19
ROT628V Tarom 19 2026-07-25
ROT627N Tarom 19 2026-07-25
ROT266Y Tarom 18 2026-07-26
ROT265R Tarom 18 2026-07-26
ROT701W Tarom 17 2026-07-22
ROT209L Tarom 17 2026-07-20
ROT702D Tarom 15 2026-07-21
ROT262R Tarom 15 2026-07-20
ROT261N Tarom 15 2026-07-20
ROT210R - 14 2026-07-15
ROT618W - 13 2026-07-23
ROT617X Tarom 13 2026-07-23
ROT810W Tarom 12 2026-07-20
ROT809H Tarom 12 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ROT266Y IST → OTP Jul 26, 20:40 UTCJul 26, 21:15 UTC35m
2026-07-26 ROT265R OTP → IST Jul 26, 18:10 UTCJul 26, 19:15 UTC1h 5m
2026-07-26 ROT264Y IST → OTP Jul 26, 16:00 UTCJul 26, 17:15 UTC1h 15m
2026-07-26 ROT263R OTP → IST Jul 26, 13:15 UTCJul 26, 14:40 UTC1h 25m
2026-07-26 ROT704A IAS → OTP Jul 26, 11:35 UTCJul 26, 12:10 UTC35m
2026-07-26 ROT703E OTP → IAS Jul 26, 09:55 UTCJul 26, 10:35 UTC40m
2026-07-25 ROT628V OMR → OTP Jul 25, 16:40 UTCJul 25, 17:35 UTC55m
2026-07-25 ROT627N OTP → OMR Jul 25, 14:55 UTCJul 25, 16:05 UTC1h 10m
2026-07-25 ROT644N CLJ → OTP Jul 25, 10:45 UTCJul 25, 11:30 UTC45m
2026-07-25 ROT643C OTP → CLJ Jul 25, 09:05 UTCJul 25, 09:45 UTC40m
2026-07-25 ROT292G SOF → OTP Jul 25, 07:10 UTCJul 25, 07:55 UTC45m
2026-07-25 ROT291H OTP → SOF Jul 25, 05:35 UTCJul 25, 06:25 UTC50m
2026-07-24 ROT266Y IST → OTP Jul 24, 21:00 UTCJul 24, 22:00 UTC1h 0m
2026-07-24 ROT265R OTP → IST Jul 24, 18:20 UTCJul 24, 19:40 UTC1h 20m
2026-07-24 ROT628V - Jul 24, 16:10 UTCJul 24, 17:10 UTC1h 0m
2026-07-24 ROT627N OTP → OMR Jul 24, 14:30 UTCJul 24, 15:35 UTC1h 5m
2026-07-24 ROT604P TSR → OTP Jul 24, 11:40 UTCJul 24, 12:35 UTC55m
2026-07-24 ROT603W OTP → TSR Jul 24, 10:00 UTCJul 24, 10:50 UTC50m
2026-07-24 ROT232Q BUD → OTP Jul 24, 07:20 UTCJul 24, 08:40 UTC1h 20m
2026-07-24 ROT231B OTP → BUD Jul 24, 05:00 UTCJul 24, 06:30 UTC1h 30m
2026-07-24 ROT610K TSR → OTP Jul 24, 02:30 UTCJul 24, 03:15 UTC45m
2026-07-23 ROT609N OTP → TSR Jul 23, 19:40 UTCJul 23, 20:35 UTC55m
2026-07-23 ROT618W - Jul 23, 16:05 UTCJul 23, 17:00 UTC55m
2026-07-23 ROT617X OTP → BAY Jul 23, 14:00 UTCJul 23, 14:50 UTC50m
2026-07-23 ROT644N CLJ → OTP Jul 23, 11:15 UTCJul 23, 12:00 UTC45m
2026-07-23 ROT643C OTP → CLJ Jul 23, 09:35 UTCJul 23, 10:20 UTC45m
2026-07-23 ROT602K TSR → OTP Jul 23, 06:15 UTCJul 23, 07:10 UTC55m
2026-07-23 ROT601A OTP → TSR Jul 23, 04:30 UTCJul 23, 05:25 UTC55m
2026-07-22 ROT266Y IST → OTP Jul 22, 20:40 UTCJul 22, 21:45 UTC1h 5m
2026-07-22 ROT265R - Jul 22, 18:00 UTCJul 22, 19:25 UTC1h 25m
2026-07-22 ROT618W - Jul 22, 16:05 UTCJul 22, 16:55 UTC50m
2026-07-22 ROT617X OTP → BAY Jul 22, 14:15 UTCJul 22, 15:10 UTC55m
2026-07-22 ROT644N - Jul 22, 12:20 UTCJul 22, 13:10 UTC50m
2026-07-22 ROT643C OTP → CLJ Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-22 ROT701W OTP → IAS Jul 22, 03:25 UTCJul 22, 04:05 UTC40m
2026-07-21 ROT266Y IST → OTP Jul 21, 21:05 UTCJul 21, 22:15 UTC1h 10m
2026-07-21 ROT265R - Jul 21, 18:20 UTCJul 21, 19:40 UTC1h 20m
2026-07-21 ROT628V - Jul 21, 15:20 UTCJul 21, 16:20 UTC1h 0m
2026-07-21 ROT627N OTP → OMR Jul 21, 13:30 UTCJul 21, 14:45 UTC1h 15m
2026-07-21 ROT644N - Jul 21, 11:45 UTCJul 21, 12:35 UTC50m
2026-07-21 ROT643C OTP → CLJ Jul 21, 09:50 UTCJul 21, 10:45 UTC55m
2026-07-21 ROT702D IAS → OTP Jul 21, 06:35 UTCJul 21, 07:15 UTC40m
2026-07-21 ROT701W OTP → IAS Jul 21, 04:55 UTCJul 21, 05:30 UTC35m
2026-07-20 ROT209L OTP → RMO Jul 20, 20:40 UTCJul 20, 21:20 UTC40m
2026-07-20 ROT648P - Jul 20, 19:05 UTCJul 20, 19:50 UTC45m
2026-07-20 ROT647M - Jul 20, 17:25 UTCJul 20, 18:10 UTC45m
2026-07-20 ROT618W - Jul 20, 15:20 UTCJul 20, 16:15 UTC55m
2026-07-20 ROT617X OTP → BAY Jul 20, 13:25 UTCJul 20, 14:15 UTC50m
2026-07-20 ROT703E - Jul 20, 09:55 UTCJul 20, 10:35 UTC40m
2026-07-20 ROT262R IST → OTP Jul 20, 07:40 UTCJul 20, 08:45 UTC1h 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 YR-ATM page for operator, model, and routing details .

Mode-S 4A068D frequently asked

What is Mode-S code 4A068D?
4A068D is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-ATM.
Where is Mode-S 4A068D registered?
Mode-S code 4A068D is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A068D broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A068D, octal 22403215, decimal 4,851,341.
What flights does 4A068D operate?
Mode-S 4A068D has broadcast 20 distinct callsigns, including ROT703E, ROT644N, ROT643C, ROT707B, ROT704A.