Apparatus

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sensors Mode-S transponder

151DC3

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73155 · AIRBUS A-350-900

Hex
151DC3
Octal
05216703
Decimal
1,383,875
Country
RU
Tail
RA-73155
Type
A359
No current signal · last broadcast 2h ago
Flights observed
35
Distinct callsigns
11
Country
RU
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 151DC3.

Country allocation

The ICAO 24-bit address 151DC3 falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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 11 distinct

Callsign Airline Flights Last seen
AFL295 Aeroflot Russian Airlines 11 2026-05-31
AFL298 - 6 2026-05-10
AFL294 Aeroflot Russian Airlines 6 2026-06-02
AFL599 Aeroflot Russian Airlines 3 2026-04-15
AFL598 Aeroflot Russian Airlines 3 2026-04-15
AFL296 Aeroflot Russian Airlines 1 2026-04-23
AFL245 Aeroflot Russian Airlines 1 2026-04-25
AFL225 Aeroflot Russian Airlines 1 2026-05-15
AFL224 Aeroflot Russian Airlines 1 2026-05-15
AFL213 Aeroflot Russian Airlines 1 2026-04-17
AFL212 Aeroflot Russian Airlines 1 2026-04-17

Recent flights last 35

DateFlightRouteTakeoffLandingDuration
2026-06-02 AFL294 VCE → SVO Jun 2, 21:55 UTCJun 3, 01:20 UTC3h 25m
2026-05-31 AFL295 SVO → ATH May 31, 21:15 UTCJun 1, 09:40 UTC12h 25m
2026-05-28 AFL294 VCE → SVO May 28, 17:10 UTCMay 29, 07:05 UTC13h 55m
2026-05-25 AFL294 VCE → SVO May 25, 21:40 UTCMay 26, 06:54 UTC9h 15m
2026-05-23 AFL295 SVO → ATH May 23, 21:20 UTCMay 24, 09:50 UTC12h 30m
2026-05-20 AFL294 VCE → SVO May 20, 21:30 UTCMay 21, 06:50 UTC9h 20m
2026-05-17 AFL294 VCE → SVO May 17, 22:05 UTCMay 18, 08:50 UTC10h 45m
2026-05-15 AFL225 SVO → ATH May 15, 11:10 UTCMay 16, 04:05 UTC16h 54m
2026-05-15 AFL224 SVO → SYX May 15, 07:50 UTCMay 15, 08:05 UTC15m
2026-05-13 AFL295 SVO → ATH May 13, 22:00 UTCMay 14, 13:55 UTC15h 55m
2026-05-11 AFL295 SVO → ATH May 11, 21:05 UTCMay 12, 10:00 UTC12h 55m
2026-05-10 AFL298 - May 10, 01:39 UTCMay 10, 11:40 UTC10h 0m
2026-05-09 AFL298 - May 9, 08:50 UTCMay 10, 05:34 UTC20h 45m
2026-05-09 AFL298 - May 9, 06:50 UTCMay 10, 05:34 UTC22h 45m
2026-05-09 AFL295 SVO → ATH May 9, 05:30 UTCMay 10, 03:55 UTC22h 25m
2026-05-08 AFL295 SVO → ATH May 8, 21:15 UTCMay 9, 09:50 UTC12h 35m
2026-05-03 AFL298 - May 3, 01:45 UTCMay 3, 14:20 UTC12h 34m
2026-05-02 AFL298 - May 2, 08:50 UTCMay 3, 05:40 UTC20h 49m
2026-05-02 AFL298 - May 2, 06:50 UTCMay 3, 05:40 UTC22h 49m
2026-05-02 AFL295 SVO → ATH May 2, 05:35 UTCMay 3, 04:45 UTC23h 9m
2026-05-01 AFL295 SVO → ATH May 1, 21:35 UTCMay 2, 10:00 UTC12h 25m
2026-04-29 AFL295 SVO → ATH Apr 29, 21:25 UTCApr 30, 10:00 UTC12h 34m
2026-04-26 AFL295 SVO → ATH Apr 26, 17:00 UTCApr 27, 10:15 UTC17h 15m
2026-04-25 AFL245 SVO → LHR Apr 25, 16:15 UTCApr 25, 16:25 UTC10m
2026-04-23 AFL296 SVO → DPS Apr 23, 16:50 UTCApr 24, 09:50 UTC17h 0m
2026-04-21 AFL294 VCE → SVO Apr 21, 16:40 UTCApr 22, 06:55 UTC14h 15m
2026-04-19 AFL295 SVO → ATH Apr 19, 21:20 UTCApr 20, 15:15 UTC17h 55m
2026-04-17 AFL213 HKG → SVO Apr 17, 04:00 UTCApr 17, 04:20 UTC20m
2026-04-17 AFL212 SVO → HKG Apr 17, 01:25 UTCApr 17, 01:50 UTC25m
2026-04-15 AFL599 CXR → SVO Apr 15, 13:01 UTCApr 15, 14:55 UTC1h 54m
2026-04-15 AFL599 CXR → SVO Apr 15, 11:00 UTCApr 15, 12:55 UTC1h 55m
2026-04-15 AFL599 CXR → SVO Apr 15, 10:20 UTCApr 15, 10:55 UTC35m
2026-04-15 AFL598 SVO → CXR Apr 15, 05:00 UTCApr 15, 05:50 UTC50m
2026-04-15 AFL598 SVO → CXR Apr 15, 02:55 UTCApr 15, 04:50 UTC1h 55m
2026-04-15 AFL598 SVO → CXR Apr 15, 02:00 UTCApr 15, 02:50 UTC50m

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 RA-73155 page for operator, model, and routing details .

Mode-S 151DC3 frequently asked

What is Mode-S code 151DC3?
151DC3 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73155.
Where is Mode-S 151DC3 registered?
Mode-S code 151DC3 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DC3 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DC3, octal 05216703, decimal 1,383,875.
What flights does 151DC3 operate?
Mode-S 151DC3 has broadcast 11 distinct callsigns, including AFL295, AFL298, AFL294, AFL599, AFL598.