sensors Mode-S transponder

4A068C

ICAO 24-bit transponder address · allocated to Romania

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

Hex
4A068C
Octal
22403214
Decimal
4,851,340
Country
RO
Tail
YR-ATL
Type
AT76
No current signal · last broadcast 19h ago
Flights observed
12
Distinct callsigns
8
Country
RO
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 4A068C.

Country allocation

The ICAO 24-bit address 4A068C 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 8 distinct

Callsign Airline Flights Last seen
ROT617X - 3 2026-04-13
ROT602K - 2 2026-04-14
ROT275B - 2 2026-04-13
ROT707B - 1 2026-04-13
ROT701W Tarom 1 2026-04-13
ROT618W - 1 2026-04-13
ROT601A Tarom 1 2026-04-14
ROT276H - 1 2026-04-13

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 ROT602K - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 ROT602K - Apr 14, 06:25 UTCApr 14, 07:10 UTC45m
2026-04-14 ROT601A OTP → TSR Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 ROT707B - Apr 13, 16:35 UTCApr 13, 17:15 UTC40m
2026-04-13 ROT276H - Apr 13, 14:30 UTCApr 13, 15:45 UTC1h 15m
2026-04-13 ROT275B - Apr 13, 12:20 UTCApr 13, 13:20 UTC1h 0m
2026-04-13 ROT275B - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-13 ROT618W - Apr 13, 09:40 UTCApr 13, 10:25 UTC45m
2026-04-13 ROT617X - Apr 13, 08:20 UTCApr 13, 08:40 UTC20m
2026-04-13 ROT617X - Apr 13, 07:55 UTCApr 13, 08:40 UTC45m
2026-04-13 ROT617X - Apr 13, 07:40 UTCApr 13, 08:15 UTC35m
2026-04-13 ROT701W OTP → IAS Apr 13, 04:25 UTCApr 13, 05:10 UTC45m

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

Mode-S 4A068C frequently asked

What is Mode-S code 4A068C?
4A068C is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-ATL.
Where is Mode-S 4A068C registered?
Mode-S code 4A068C is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A068C broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A068C, octal 22403214, decimal 4,851,340.
What flights does 4A068C operate?
Mode-S 4A068C has broadcast 8 distinct callsigns, including ROT617X, ROT602K, ROT275B, ROT707B, ROT701W.