Apparatus

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sensors Mode-S transponder

4A48B6

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-REV · CIRRUS SR-22

Hex
4A48B6
Octal
22444266
Decimal
4,868,278
Country
RO
Tail
YR-REV
Type
SR22
No current signal · last broadcast 2d ago
Flights observed
68
Distinct callsigns
1
Country
RO
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4A48B6.

Country allocation

The ICAO 24-bit address 4A48B6 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 1 distinct

Callsign Airline Flights Last seen
YRREV - 68 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 YRREV - Jul 18, 08:15 UTCJul 18, 08:55 UTC40m
2026-07-15 YRREV - Jul 15, 17:00 UTCJul 15, 18:35 UTC1h 35m
2026-07-15 YRREV - Jul 15, 12:55 UTCJul 15, 14:40 UTC1h 45m
2026-07-15 YRREV - Jul 15, 12:00 UTCJul 15, 12:15 UTC15m
2026-07-12 YRREV - Jul 12, 12:30 UTCJul 12, 14:10 UTC1h 40m
2026-07-11 YRREV - Jul 11, 14:40 UTCJul 11, 16:00 UTC1h 20m
2026-07-09 YRREV - Jul 9, 09:15 UTCJul 9, 10:45 UTC1h 30m
2026-07-08 YRREV - Jul 8, 18:10 UTCJul 8, 18:50 UTC40m
2026-07-08 YRREV - Jul 8, 15:25 UTCJul 8, 16:45 UTC1h 20m
2026-07-04 YRREV - Jul 4, 16:40 UTCJul 4, 18:00 UTC1h 20m
2026-07-03 YRREV - Jul 3, 09:35 UTCJul 3, 11:00 UTC1h 25m
2026-07-03 YRREV - Jul 3, 06:45 UTCJul 3, 08:05 UTC1h 20m
2026-06-26 YRREV - Jun 26, 09:55 UTCJun 26, 11:00 UTC1h 5m
2026-06-25 YRREV - Jun 25, 05:44 UTCJun 25, 06:50 UTC1h 5m
2026-06-23 YRREV - Jun 23, 14:29 UTCJun 23, 15:59 UTC1h 30m
2026-06-22 YRREV - Jun 22, 07:19 UTCJun 22, 08:44 UTC1h 25m
2026-06-21 YRREV - Jun 21, 12:35 UTCJun 21, 13:04 UTC30m
2026-06-21 YRREV - Jun 21, 11:30 UTCJun 21, 12:04 UTC35m
2026-06-18 YRREV - Jun 18, 13:55 UTCJun 18, 15:30 UTC1h 35m
2026-06-17 YRREV - Jun 17, 16:55 UTCJun 17, 18:15 UTC1h 20m
2026-06-13 YRREV - Jun 13, 11:00 UTCJun 13, 12:00 UTC1h 0m
2026-06-13 YRREV - Jun 13, 09:40 UTCJun 13, 10:15 UTC35m
2026-06-03 YRREV - Jun 3, 16:30 UTCJun 3, 17:50 UTC1h 20m
2026-06-03 YRREV - Jun 3, 07:50 UTCJun 3, 09:10 UTC1h 20m
2026-06-01 YRREV - Jun 1, 15:50 UTCJun 1, 18:10 UTC2h 20m
2026-05-30 YRREV - May 30, 09:45 UTCMay 30, 12:05 UTC2h 20m
2026-05-27 YRREV - May 27, 13:30 UTCMay 27, 14:55 UTC1h 25m
2026-05-27 YRREV - May 27, 03:50 UTCMay 27, 05:04 UTC1h 15m
2026-05-25 YRREV - May 25, 16:15 UTCMay 25, 16:35 UTC20m
2026-05-25 YRREV - May 25, 15:05 UTCMay 25, 15:35 UTC30m
2026-05-24 YRREV - May 24, 16:50 UTCMay 24, 17:20 UTC30m
2026-05-23 YRREV - May 23, 13:30 UTCMay 23, 13:45 UTC15m
2026-05-23 YRREV - May 23, 11:55 UTCMay 23, 12:55 UTC1h 0m
2026-05-23 YRREV - May 23, 08:20 UTCMay 23, 09:20 UTC1h 0m
2026-05-23 YRREV - May 23, 07:25 UTCMay 23, 07:40 UTC15m
2026-05-21 YRREV - May 21, 10:30 UTCMay 21, 10:55 UTC25m
2026-05-21 YRREV - May 21, 06:35 UTCMay 21, 07:10 UTC35m
2026-05-20 YRREV RTM → OMR May 20, 13:50 UTCMay 20, 18:00 UTC4h 10m
2026-05-20 YRREV - May 20, 07:45 UTCMay 20, 08:55 UTC1h 10m
2026-05-19 YRREV - May 19, 17:30 UTCMay 19, 21:25 UTC3h 55m
2026-05-19 YRREV - May 19, 13:15 UTCMay 19, 13:30 UTC15m
2026-05-19 YRREV - May 19, 12:00 UTCMay 19, 12:15 UTC15m
2026-05-18 YRREV - May 18, 12:25 UTCMay 18, 14:25 UTC2h 0m
2026-05-18 YRREV - May 18, 08:25 UTCMay 18, 10:25 UTC2h 0m
2026-05-16 YRREV - May 16, 07:55 UTCMay 16, 08:16 UTC20m
2026-05-14 YRREV - May 14, 16:10 UTCMay 14, 16:25 UTC15m
2026-05-14 YRREV - May 14, 15:01 UTCMay 14, 15:35 UTC35m
2026-05-14 YRREV - May 14, 13:55 UTCMay 14, 14:45 UTC50m
2026-05-13 YRREV - May 13, 12:25 UTCMay 13, 12:45 UTC20m
2026-05-13 YRREV - May 13, 11:05 UTCMay 13, 11:40 UTC35m

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

Mode-S 4A48B6 frequently asked

What is Mode-S code 4A48B6?
4A48B6 is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-REV.
Where is Mode-S 4A48B6 registered?
Mode-S code 4A48B6 is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A48B6 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A48B6, octal 22444266, decimal 4,868,278.
What flights does 4A48B6 operate?
Mode-S 4A48B6 has broadcast 1 distinct callsign, including YRREV.